The ultimate guide to hiring a web developer in 2021
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
API stands for Application Programming Interface, and it is an layer of interface that allows programs to interact with each other. An experienced API developer can build complex interactions between applications, making them faster, more reliable, and accurate. Whether you need a second opinion on your existing application or you want to create an entirely new application for your business, an expert API Developer can do the job for you.
An API Developer's job does not stop at developing. They can also work on design and implementation testing, guide through the entire architect process from prototyping to implementation, create custom system integration solution based on the project requirements, and collaborate with other teams to develop systems that meet customer expectations.
When hiring an API Developer through Freelancer.com, rest assured that they are as competent as any hired onsite software engineer.
Here’s some projects our experts have worked on:
No matter what your business needs are in terms of API development, our expert freelancers are ready to take on the challenge and provide support whenever you need it. With expertise in debugging applications and web development, you're guaranteed to find the right developer for your project! So why wait? Post your project today at Freelancers.com and reap the benefits of working with an expert API Developer now!
From 163,297 reviews, clients rate our API Developers 4.9 out of 5 stars.API stands for Application Programming Interface, and it is an layer of interface that allows programs to interact with each other. An experienced API developer can build complex interactions between applications, making them faster, more reliable, and accurate. Whether you need a second opinion on your existing application or you want to create an entirely new application for your business, an expert API Developer can do the job for you.
An API Developer's job does not stop at developing. They can also work on design and implementation testing, guide through the entire architect process from prototyping to implementation, create custom system integration solution based on the project requirements, and collaborate with other teams to develop systems that meet customer expectations.
When hiring an API Developer through Freelancer.com, rest assured that they are as competent as any hired onsite software engineer.
Here’s some projects our experts have worked on:
No matter what your business needs are in terms of API development, our expert freelancers are ready to take on the challenge and provide support whenever you need it. With expertise in debugging applications and web development, you're guaranteed to find the right developer for your project! So why wait? Post your project today at Freelancers.com and reap the benefits of working with an expert API Developer now!
From 163,297 reviews, clients rate our API Developers 4.9 out of 5 stars.Fix & Improve Existing NestJS + PostgreSQL + Redis + React Native Project Hello I’m looking for an experienced full-stack developer to help me fix, refactor, and improve my existing project built with NestJS, PostgreSQL, Redis, and React Native. The project is already developed, but it currently has bugs, unfinished logic, and stability issues. I need someone who can understand existing code, fix problems, and make the system stable and production-ready. Tech Stack: Backend: NestJS Database: PostgreSQL Caching / Queue: Redis Mobile App: React Native API: REST API Tasks: Review and analyze existing NestJS backend Fix bugs and logical issues Improve code structure and performance Fix database-related issues (PostgreSQL) Fix and optimize Redis usage (cache / queue / se...
Help wanted: daily/multi-daily comparison of supplier prices and stock levels (B2B webshop) Text: We operate a B2B webshop where business customers can place orders or commission items on request. Most of the goods are sourced directly from manufacturers. For most suppliers we have access to their stock levels and current prices; for some, no login is required, while others require login credentials. We are looking for a solution or a skilled professional who can help us retrieve supplier prices and stock levels daily — ideally multiple times per day — and compare them with our internal purchase prices so we stay up to date. No automatic syncing with our system or automatic price changes are required. It is sufficient if discrepancies between supplier prices and our system pu...
I want to get up to speed on visualising Instagram hashtag activity as an interactive 3D network that updates in real time, so I can explore how clusters of conversation form and evolve. Basic counts or static charts won’t help me—I’m after a high-level, spatial overview that reveals relationships between hashtags at a glance. Here’s what I have in mind. You share your screen (or meet in a recorded call) and walk me through a streamlined pipeline: pulling public hashtag data from Instagram’s API or another compliant endpoint, streaming it into Python or Node, then projecting it with a WebGL or scene—Unity, Blender, or similar is fine if that’s your preferred stack. The goal is clarity over polish: I want to see each step, understand the code, and...
I need a compact piece of code that can create an L1-eligible product listing on the Government e-Marketplace (GEM) portal. The sole focus is the “Product on GEM site” functionality— no user management, payment handling, or analytics at this stage. The script should: • Authenticate with my GEM account (I’ll supply sandbox credentials). • Push all mandatory product data— title, specifications, price, images— so the item appears in the catalogue and is flagged as the lowest (L1) offer when applicable. • Return the product ID or any response GEM provides that confirms the listing. Language can be Python, Node.js, or another mainstream stack if you can justify the choice. Keep the code clean, well-commented, and drop a short README...
I need one partner to take my new Shopify build from blank canvas to sales-ready. Everything will run on the Stiletto theme, but the default look and feel won’t cut it—I want a polished experience that mirrors Sephora-style category and filter behaviour and looks flawless on mobile. Core scope • Configure the store from scratch, connecting it to the necessary Shopify APIs. • Custom-tailor the Stiletto theme—layout tweaks, brand-driven styling, and added functionality—without sacrificing update compatibility. • Reproduce advanced category and filter logic (think ) so shoppers can drill down effortlessly. • Build product pages that pull rich data from metafields, displayed in neatly organised tabs. • Migrate only the customer records ...
I am looking for an experienced Laravel developer to help bring an existing web application to the finish line. The site is already live, but it requires several improvements, bug fixes, and final polishing to ensure stability and a smooth user experience. What I need: - Fixing bugs identified in the current application - Improving existing features and overall functionality - Cleaning up code where necessary - Ensuring the site is stable, secure, and production‑ready - Making final adjustments to complete the project Requirements: - Strong experience with Laravel (latest versions preferred) - Ability to work with an existing codebase - Good debugging and problem‑solving skills - Familiarity with MySQL, APIs, and front‑end integration - Clear communication and timely updates This is not...
I already have CapRover up and running on my own server, and the root domain is fully configured. What I’m missing is a clean, reliable one-click template that will let me spin up Snipe-IT instantly from the CapRover “One-Click Apps” catalog. Here’s exactly what I need you to deliver: • A `captain-definition` and companion `` entry that pulls the latest stable Snipe-IT Docker image, sets the correct environment variables, maps persistent volumes, and links everything to a fresh MariaDB service (my preferred database for this project). • The MariaDB service itself defined in the same template with sensible defaults and clearly commented placeholders for root password, app user, and database name. • Optional sections for SMTP, HTTPS, and timezon...
I need a website designed for domain resellers. The primary function of this site will be to check domain availability. Key features should include: - User-friendly interface for easy navigation - Robust backend to handle high-volume domain checks - Secure login for resellers - Responsive design for mobile and desktop use Experience with domain registration APIs and website security is a plus. The project needs to be completed ASAP.
**Operating System:** CentOS 7.x (7.9 recommended) **Core Architecture:** Spring Cloud + Kafka + Hadoop + Python Automation **Core Package Name:** ``
I’m launching a lightning-fast real-estate landing site aimed at buyers and sellers in Surrey and the wider Lower Mainland. The single goal is lead generation: every design, word, and pixel should guide visitors toward leaving their name and email so I can nurture them into clients. Core requirements • Modern, clean aesthetic that looks sharp on any screen and loads in under two seconds. • Embedded form capturing only name + email; submissions must be stored securely and forwarded to me instantly (API, webhook, or direct email—whichever you recommend). • Seamless FVREB MLS/IDX integration so visitors can browse live listings without leaving the page. Automatic daily sync is a must. • Mobile-first layout, SSL, and basic SEO/meta set-up baked in. Del...
I’m building a small C# utility that will crawl a target site, pull out every piece of on-page information I need (both the visible text and the images), and also save any PDF that the page links to. The PDFs aren’t generated on the fly—each one is simply a normal hyperlink sitting in the HTML—so the job comes down to fetching the page, parsing for the data, spotting the *.pdf anchors, and downloading those files to disk. You are free to approach this with HtmlAgilityPack, AngleSharp, HttpClient, Selenium, or any other .NET-friendly library you’re comfortable with, as long as the final code is clean, asynchronous where it makes sense, and easy to extend. I will pass in the root URL (or a list of starting URLs) plus an output folder path; the tool should handl...
Broker : Zerodha Kite Algo Platform : Open Algo or any other free Architecture : Modular Requirement : A per attached file
For an upcoming market research study, I need a fully-automated workflow that gathers and enriches data from well over 500 LinkedIn profiles. The automation should locate the profiles that match criteria I will provide, pull the key public details, then append reliable off-platform contact information so I can reach those professionals directly. Please design the script or low-code sequence with any reliable stack you prefer—Python, Selenium, PhantomBuster, Sales Navigator API, or comparable tools are fine as long as the method is repeatable and respects rate limits. Deliverables • CSV/Excel file containing one row per person with: – Current job title – Company name – Verified email (and phone, when available) • Source code or workflow fi...
I need a Python-based trading program that plugs directly into the Zerodha Kite API and runs end-to-end on live Indian equity and F&O markets. The code must handle three pillars inside a single, well-structured repository: • Automated trading – place, modify, and cancel orders programmatically (market, limit, SL). The engine should be able to run multiple strategies concurrently and execute through Zerodha’s regular and MIS product types. • Market analysis – fetch historical and live tick data, calculate technical indicators on the fly (you’re free to use pandas, numpy, TA-Lib, or your own functions), and generate entry/exit signals according to parameters I will supply. • Risk management – position sizing, max daily drawdown, per-trade s...
The frontend of the project is done. However, I am unable to integrate Supabase as it crashes when I do. I am not familiar with Supabase. This project has user management, with separate portals for Admin, Interpreter, Client, and Staff. It has various workflows (example: Registration-> User Management; Booking Request-> Job Creation -> Assignment Tracking -> Completion Report -> Invoicing -> Payment) and integrations between users (Admin <-> Interpreter, Admin <-> Staff). It is also important that email integration is seamless.
Role: Marketing Automation & AI Architect (Freelance) Responsibilities: Research and compare WhatsApp, Email, and AI automation tools available in the market Create a detailed tool comparison and recommendation framework Finalize and own the complete marketing technology stack Setup and integrate WhatsApp, Email, CRM, and AI systems Build and maintain automation workflows Provide backend support and system documentation Experience Required: 5+ years in MarTech / Marketing Automation Proven experience comparing & selecting tools Strong automation, API, and integration skills
Job Description: Scala / Groovy Developer (Maven, Datadog Dashboard) Duration: 4 Hours Budget: ₹600 per Hour Role Overview We are looking for a Scala/Groovy Developer with Maven build experience to support two focused tasks involving application setup and monitoring dashboards. Key Tasks Scala & Groovy with Maven Work on existing Scala and Groovy-based codebase Handle Maven configuration, dependency management, and build setup Ensure smooth compilation and execution of the project Datadog Dashboard Creation Design and configure dashboards in Datadog Visualize key application and system metrics Ensure dashboards are clear, actionable, and aligned with monitoring needs Required Skills Strong hands-on experience with Scala and Groovy Good knowledge of Maven Experience creating and manag...
I need a small, self-contained module that talks to the KLing 2.6 Pro API, takes the image set captured by my Breeze Systems photobooth software, and stitches those frames into a short mp4. The first captured image must appear as a still for a configurable number of seconds, the remaining shots play through in sequence, and the last frame freezes for an outro of equal length. Audio is not required; smooth cross-fade or simple cut transitions are fine as long as there is no visible stutter. The workflow I have in mind: • Breeze Systems saves the JPEG set into its usual session folder. • Your component is triggered (command-line call or REST endpoint—whichever is easiest to bolt on). • It calls KLing 2.6 Pro to do the heavy lifting, respecting the timing rules abov...
Urgent project requirement !! I need a single-purpose webpage that does nothing more than collect a payment in USDT. I will share a short video that shows the exact flow and look I have in mind, so you can mirror it closely rather than designing from scratch. I need this project within 3 to 4 hours !!!!!!! The page must: • Display my preset amount or let me edit it on the fly • Show the correct USDT wallet addresses for both TRC-20 and BEP-20 networks • Generate a fresh QR code for each network so the payer can scan and send immediately • Detect the payment (or at least let the user confirm they’ve sent it) and then redirect to a simple “Payment received” screen No shopping cart, no user accounts—just the clean payment interface. I am f...
Schwab API Execution Hardening – 2 Week Contract I’m completing a nearly finished Python trading system (“Hyperion”) and need a senior execution-focused engineer for final hardening and validation. This is NOT a strategy build. This is broker execution stabilization. System Context: • Schwab API integration • Cash account only • Single-leg options only • No spreads • No margin • GUI guardrails implemented (contract limits, capital caps, DTE filters, one position per symbol) • 80–90% complete Scope: • Validate OAuth refresh logic • Harden order submission (idempotency, duplicate prevention) • Confirm proper order lifecycle handling • Implement position reconciliation checks • Add structured logging &bu...
Dashboard Blu X is a professional financial dashboard for options traders tracking real-time gamma exposure (GEX) in SPX options using ThetaData. I have a complete financial dashboard (2,000+ lines of production code) that needs deployment. Development is fully finished and tested locally. I need a deployment/DevOps specialist to handle setup, integration, and take the system live for an initial pilot of two users. WHAT WE HAVE - Complete React 18 + TypeScript frontend (28 files, 1,037 lines) - Complete FastAPI backend (11 files, 673 lines) - All 6 dashboard features fully implemented - WebSocket real-time updates working - All calculations and formulas complete - Complete documentation (README + deployment guide) - Docker configurations ready - Vercel + Railway configs prepared - Envir...
I need a Google Sheet that automatically pulls historical data for any Indian stock I type in, lets me set a custom date range, and then shows: • Raw daily figures for any date range for traded volume, delivery volume, and the calculated delivery % • An auto-updating chart that visualises that percentage across the same period The flow I have in mind is simple: I enter a ticker (NSE symbol) and choose From / To dates; the sheet (perhaps through IMPORTHTML, IMPORTXML, an API, or Apps Script—whatever is most reliable) grabs the numbers, fills the table, and refreshes the line/column chart in one click. I should be able to repeat this on additional tabs for other symbols without rewriting code. Please build the sheet, wire up the data-fetch logic, create the delivery % fo...
We are seeking a high-caliber, hands-on Engineer to lead the development of production-grade automation within the Windows ecosystem. This is a pure implementation role designed for a specialist who excels at translating complex functional logic into stable, scalable, and maintainable PowerShell scripts. You will be responsible for the "last mile" of development—ensuring that automation isn't just functional, but resilient enough for diverse enterprise environments. Key Responsibilities Production-Grade Development: Build and maintain robust PowerShell automation with a heavy emphasis on advanced error handling, structured logging, and modular execution flow. Windows Systems Integration: Deep-dive into Windows internals to manage and manipulate the Registry, File Sy...
I need a programmer for the Node.js backend and AR so that the image moves in front of the camera. We also need to upload the image to the server, create a map of its coordinates, track its current location, and monitor the number of viewers, among other things we will discuss. The application was built in Flutter, and the backend is in Node.js. The final price for this entire project is only $550.
I’m racing toward launch and need a backend ace who can dive straight into my Hostinger setup, show real code today, and keep pace with aggressive milestones. The environment is Python backed by PostgreSQL, with Hostinger’s AI tools playing a central role. First priority is wiring reliable cron jobs, refactoring what’s already in GitHub, and embedding the AI endpoints cleanly into the existing API layer. While you’re there, run a performance sweep—profile, optimise, and make sure every Postgres query is bulletproof. Deliverables for the opening sprint: • Pull request that proves the cron jobs execute on Hostinger and log cleanly. • AI tool integration wrapped in clear, testable Python modules. • Concise review memo highlighting bottl...
I’m midway through a software development project and now need to fold in a fully-fledged user authentication layer. The current codebase is stable and organised; what’s missing are the sign-up, log-in, password reset, and basic role-based access controls that will make the product production-ready. You’ll be working against an existing Git repo. I’ll grant access and walk you through the structure so you can slot your changes in cleanly rather than bolting them on. I’m open to the usual approaches—JWT sessions, OAuth, or any secure flavour you’re most comfortable with—as long as the solution is standards-compliant and easy for another developer to pick up later. Deliverables • Registration, log-in, log-out, password reset flows ...
I’ve mapped out a process to apply to roles on LinkedIn, Indeed, and Glassdoor automatically and now need a polished n8n workflow that ties it all together. Please note before bidding Payment In Indian Rupees INR You’ll receive my CV, cover-letter templates, and the messaging formats I already use. Your task is to translate that into a clean, modular n8n setup that can: • pull each opportunity from a sheet or form, • generate the appropriate documents from my templates, • submit the application through the portal’s API or form endpoint, and • notify me once the application lands. Fixed Deadlines Standard fields are fine; no elaborate custom objects are necessary—just a rock-solid flow that I can tweak later without digging into code. ...
I need my board to hand-off new tasks to the right people automatically as soon as a pulse is created. The goal is simple: whenever a new item appears, the system should look at predefined rules—team, project type, workload, or any other column I set—and assign the owner without manual intervention. Scope • Set up an automation (native recipe, integration, or custom API script) that triggers “Based on task creation.” • Map my existing columns to clear assignment logic so each new item immediately receives the correct owner. • Make sure the solution scales; I often add new team members and dropdown values, so modifying the rules later should be straightforward. • Provide a quick walkthrough or short Loom video so I can tweak the automati...
I need a reliable LEGAL COMMENT & researcher who can MAKE legal COMMENTRY ON OUR OLD company filings from the U.S. SEC’s EDGAR database for publicly traded companies. The immediate task is to locate, download, and organise the relevant documents in a structured way that lets me review them quickly—filing date, form type, company name, CIK, and a direct link back to the source must all be captured. Acceptance TO BE CAPABLE OF PROVING WHETHER TO REESTABLISH THIS OLD APPLICATION. Turnaround is flexible but please outline how long you need per 100 filings so I can plan the next milestones.
I send 10-30 proposals a day across the major freelance platforms and have built a repeatable system that reliably triples the win rate when it is implemented end-to-end. I’m opening the door to one agency or freelancer who wants more closed deals but doesn’t want to keep hunting for the next short-term lead-gen trick. Here’s the arrangement: we work purely on a revenue-share basis. Every project you help me close through the system is split—no upfront fees, retainers, or hidden costs from my side. You will, however, cover the subscriptions for the few SaaS tools the workflow relies on, then configure and connect them. Expect to touch a lightweight CRM, proposal-tracking software and email/DM automation so you can stitch everything together and keep each touchpoint...
I need a small, self-contained tool that lets me type a single email address, click “Verify”, and instantly learn—right on the same page—whether that address is hosted on Google Workspace or on Microsoft Outlook / Office 365. No file uploads or API hooks are necessary; the focus is a quick, manual, one-at-a-time lookup with a clear on-screen result. A lightweight web interface is fine, but I’m open to a command-line script if that delivers the same simple workflow. Behind the scenes you can rely on MX, SPF, or any other reliable signal; accuracy matters more than the specific method. Keep the UI clean: one input box, one button, and a neatly formatted result. Deliverables: • Complete, well-commented source code • Brief read-me explaining setup an...
I need an expert to help me configure billing rates and internal prefixes in my ASTPP installation. Tasks: Import and set up billing rate cards. Configure internal prefixes for specific routing rules. Ensure the billing engine is capturing data correctly. This is a straightforward task for someone who knows ASTPP well. Please bid only if you have worked with ASTPP before and can start immediately.
I need an Apify actor that crawls a single website and delivers two things for every page. You can use Puppeteer, Playwright or any other Apify helper library that keeps the run stable and fast. Here’s how I see the workflow: • I’ll share the target domain, URL pattern, and the exact text blocks I care about. • You create or fork an Apify actor in JavaScript/TypeScript, configure the request queues, handle pagination where needed, and store results in a dataset. • The final dataset should export cleanly to JSON and CSV, and the image URLs should be downloadable in bulk (a simple link list or an Apify key-value export is fine). • When the crawl completes, I want a brief README so I can rerun it myself later without touching the code. Acceptance crit...
I want to commission a purpose-built high-frequency trading engine focused exclusively on stocks and driven by a momentum strategy. The system must ingest real-time streaming market data, react in microseconds, and execute orders with minimal slippage. Key expectations • End-to-end architecture: ultra-low-latency market data capture, signal generation based on momentum indicators, smart order routing, and risk controls. • Exchange connectivity: direct API or FIX gateways to major equity venues; the code has to be exchange-agnostic enough to let me plug in additional venues later. • Deterministic performance: consistent round-trip times under heavy load, with benchmarks and profiling evidence. • Safety nets: position limits, kill-switch, and detailed logging tha...
My small business already runs on Gmail, Chat, Docs, Sheets, Slides and Calendar, yet the mix of consumer versus business accounts and a growing email load (10+ messages a week and climbing) leaves the workflow scattered and privacy settings uncertain. What I need is a clean, well-documented Workspace configuration that respects data-sharing comfort levels while letting every tool work together smoothly. Here is what success looks like for me: • A concise audit of the current accounts that spells out where consumer logins can stay and where a business tier would be smarter. • Step-by-step configuration of Gmail (labels, filters, signature, templates), shared Drive folders, Chat spaces and Calendar sharing so the team can collaborate without chasing links. • Privacy an...
I already have a scenario set up and ready to run—what I’m missing is an active, fully-functional LinkedIn Sales Navigator seat that I can connect my Vayne module to. If you currently hold such an account and can grant API or session-cookie access (whichever method you normally use for integrations), let’s work together. Once connected, I’ll handle the filtering logic inside , but I need your account to serve as the data source and, ideally, your guidance to be sure the pull limits stay within LinkedIn’s acceptable use. When you reply, focus on your experience—how you’ve successfully linked Sales Navigator with automation platforms before, any anti-scrape precautions you follow, and typical daily search volumes you’ve handled without issu...
ATTENTION: I am looking for a high-performing Individual Lead Developer. No agencies. No task-completers. If you are unreliable, unpunctual, or expect to be micromanaged, do not apply. I need a technical partner who takes ownership and is hungry to build a world-class product. The Project A sophisticated, closed-community platform (Stealth Mode) with high-end UI/UX. The Figma designs are complete. I need you to implement them with a "premium" feel—meaning fluid animations, micro-interactions, and flawless performance. Detailed Core Scope: Security & Access: * Whitelist System: Registration restricted to specific domains/verified users only. Strict German GDPR (DSGVO): EU-based infrastructure, "Privacy by Design," and full data encryption are non-negotiable....
I want my day-to-day accounting work in Zoho Books to run on autopilot. From raising invoices to logging expenses and compiling real-time financial reports, every repetitive click should disappear behind well-built automations. Here’s the picture: • The only app involved is Zoho Books. • All core modules—Invoicing, Sales and Financial Reporting—need hands-free workflows. • I’m open to whichever native tools you prefer (Deluge scripts, Custom Functions, Zoho Flow, webhooks, APIs). The outcome just has to be reliable, auditable, and easy for me to maintain. Deliverables will be considered complete when: A. Sales, Stock & Billing Controls 1. Stock Visibility at Sales Order & Billing Stage Available stock (SKU-wise) must be visible while ...
I need a reliable researcher who can pull company filings from the U.S. SEC’s EDGAR database for publicly traded companies. The immediate task is to locate, download, and organise the relevant documents in a structured way that lets me review them quickly—filing date, form type, company name, CIK, and a direct link back to the source must all be captured. Scope • Search the EDGAR system and collect every filing that matches the criteria I’ll send (ticker list or CIKs). • Save each document in its original format (HTML, PDF, or XBRL when available) and label the files clearly. • Build a spreadsheet that lists each filing with the key metadata mentioned above. Acceptance The work is complete when I receive a zipped folder containing the documents an...
Job Title: Zoho Specialist Developer Company: We are a System Strategy and Implementation Australian company Location: Remote / WFH Type: Full-time Salary: Based on skills and Experience; paid in AU currency. Company Overview: Our company is a fast-growing Systems Agency company that provides innovative system solutions to businesses worldwide. We are looking for a Zoho Specialist Developer to join our team and help us build cutting-edge Zoho solutions that empower our clients to achieve their business goals. Job Description: As a Zoho Specialist Developer, you will be responsible for designing, developing, and maintaining system strategic solutions using the Zoho platform. Our team has a focus on providing our clients with 'Evergreen' Zoho system solutions. We focus on imp...
I need a small, self-contained tool that lets me type a single email address, click “Verify”, and instantly learn—right on the same page—whether that address is hosted on Google Workspace or on Microsoft Outlook / Office 365. No file uploads or API hooks are necessary; the focus is a quick, manual, one-at-a-time lookup with a clear on-screen result. A lightweight web interface is fine, but I’m open to a command-line script if that delivers the same simple workflow. Behind the scenes you can rely on MX, SPF, or any other reliable signal; accuracy matters more than the specific method. Keep the UI clean: one input box, one button, and a neatly formatted result. Deliverables: • Complete, well-commented source code • Brief read-me explaining setup an...
Scope of Work – Technical (Bubble) I will need helps in design and implement a delivery batching system that: • Automatically groups 2–3 nearby orders within a time window (60–90 seconds) • Supports peak vs off-peak logic • Converts to solo delivery when batching fails • Is compliant with delivery minimum pay rules • Tracks driver active time, pickup, delivery, and completion • Correctly handles refunds, credits, and failed batches • Uses Bubble backend workflows (API workflows, scheduled workflows) • Works efficiently at scale (no infinite loops / poor DB design) You will not be expected to invent the business logic — we already have a clear batching model, calculations, and flow diagrams. Your job is to implement it cleanly ...
I would like to lease a Global Title for USSD testing and development. If possible, I would appreciate a prepaid option that allows flexible rental periods, such as 24-hour or weekly terms.
I am preparing to roll out electronic invoicing through ANAF’s e-Factura service and need a Romanian developer who has already been through the full API onboarding process. My immediate goal is to get the initial setup and configuration right the first time, so I’m looking for hands-on guidance rather than generic documentation links. Here is what I expect from our collaboration: • Walk me through the production and sandbox registration steps, including obtaining certificates, configuring OAuth2 authentication, and setting the required headers. • Provide a concise checklist of mandatory request/response fields so I can validate outgoing XML before it reaches ANAF. • Join a screen-sharing session to test one live invoice transmission and interpret the API r...
I need a working bridge that continuously pulls Nifty option-chain data from the Tradejini API—specifically strike prices, volume, open interest and premium—and feeds it into TradingView so a Pine Script indicator can consume it side-by-side with my existing studies. Core flow 1. Fetch the four data fields in near-real-time (a polling interval that keeps TradingView plots useful without overloading the API is fine). 2. Normalise and package the feed so Pine Script v5 can read it. If a webhook or external server is the cleanest path, go with that; a direct HTTP request inside Pine Script is equally acceptable if you can stay within TradingView limits. 3. Build a sample indicator that plots the imported figures and makes them available to other scripts through `()` or a cu...
My trading platform already executes market, limit and stop orders, but the risk-management layer is still missing. The first milestone is to wire in full stop-loss / take-profit support. I need one order ticket to hold several take-profit targets and several stop levels, each independently editable and cancellable. Trailing stops, moveable (drag-and-drop) limit orders and partial take-profit execution must all work seamlessly against the existing matching engine. Once the core logic is stable, I want the front end to render this information as intuitive graphs and charts: open positions plotted on the price chart, colour-coded TP/SL bands, and real-time P&L markers. The current React components already pull live price feeds; your job is to extend them so every change in order state i...
I'm currently facing a problem with the login functionality of my website/application. It was working fine, after some server side upgrade(php) from my hosting company this issue started. While creating user registration the pages get skipped and not getting completed. This needs to be fixed. After fixing other few automation should also be done. Below are the detail: • Fix Registration – Activate user signup/login (for two websites (1 with exe file) - stopped working after hosting/php upgrade). • Modify Admin Panel – Show total users, course-wise stats, expiry list, manual activation/deactivation, etc., and 100-day course expiry logic. • Paid Course Automation – Auto-activate courses via Razorpay web hook (razorpay account available) + WhatsApp wel...
Build WhatsApp Business API Task Manager Bot with Manager Dashboard I need an experienced full-stack developer to build a WhatsApp Business API-integrated task management tool. The system allows me (as manager) to assign tasks to team members via WhatsApp, automatically follow up with them, collect status updates, and view all progress on a centralized web dashboard. Key Features: - Connect to WhatsApp Business API via Twilio, Gupshup, WATI, or similar BSP - Web admin panel to create and assign tasks - WhatsApp message notifications for task assignments - Automated reminders on WhatsApp - Status updates captured directly from WhatsApp conversations - Manager dashboard with task list, filters (by assignee/date/status), and analytics Technical Requirements: - Proven WhatsApp Business API ...
Targeting local service based businesses with high customer value in following niches for google ads: 1. Plumbers 2. HVAC 3. Electricians 4. Roofers Location: Top high paying US cities (in EST preferred): Fields required: 1. Email (ofcourse) 2. business name 3. niche/category 4. city Need to send sample of 50-100 leads when requested (before awarding the project). Once the project is awarded: 1. Need to send verification/validation status of the emails as well. 2. Need to disclose the source of where they're scraped from (google maps, facebook, yellowpages etc. - basic idea) and what verification/validation service API is used (eg. reoon, millionverifier, zerobounce etc). Note: 1. Time wasters please stay away. 2. Need more leads after first 12k leads batch (future opportunit...
I need every bicycle, accessory, and clothing item currently sold on imported into my own e-commerce site. Each listing on my end must carry over the full product description, the current price, and all available images exactly as they appear on Bike24. My store is already live; what I am missing is a reliable, repeatable way to pull in this catalogue and keep it in sync. A custom scraper, API connector, or an import script that feeds directly into my CMS are all acceptable—as long as it works smoothly and can be rerun whenever Bike24 updates their stock. To be crystal-clear, the finished job is considered complete when: • All bikes, accessories, and clothing from Bike24 are visible on my site with correct titles, descriptions, prices, and image galleries. • Products ...
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