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$20 USD / hour
islamabad, pakistan
$20 USD / hour
It's currently 1:10 AM here
Joined April 16, 2023
1 Recommendation

Sajjad U.


5.0 (4 reviews)
$20 USD / hour
islamabad, pakistan
$20 USD / hour
Jobs Completed
On Budget
On Time
Repeat Hire Rate

No.1 Writer Data Entry and Simulation Expert

I have several publications involving the techniques of CFD, FEA, CAD, etc. I am a passionate and professional nuclear engineer/electrical/mechanical/aerospace expert and I offer top-notch programming and coding analysis for Neutronics, Thermal Hydraulics, Heat Exchangers, Coupling between fluid flow and Heat transfer using COMSOL Multiphysics, ANSYS, Solidworks, Openfoam, Creme86, Geant4 C, MCNP, SERPENT, CFD, FEA, Fortran, Python, Thermal Hydraulics simulations, Reactor Kinetics simulations, Heat Transfer simulations, TH coupling, Solid-Works, Design of any component in ANSYS design Modeler, ANSYS Space Claim, COMSOL Drawing tool and Inventor. Additionally, a graphic designer, MS Access database expert, and MS Word Expert. Along with that, I have done a lot in the field of aerospace and mechanical engineering. So if you need to design and simulate anything or re-validation is required for any research paper then feel free to contact me. Also, you can see my attached portfolio here

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Showing 1 - 4 out of 4 reviews
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$250.00 USD
Superior professionalism!!, exceptional work!! Sajjad U. is the best freelancer i have worked with. Must HIRE!!
Matlab and Mathematica
Research Writing
Flag of Ziad A.
5 months ago
€80.00 EUR
Sajjad delivered exceptionally high-quality work in a very short time. Definitely will hire again.
Technical Writing
Mechanical Engineering
Chemical Engineering
Water Treatment
Educational Research
User Avatar
Flag of Frantisek V.
5 months ago
$70.00 USD
Best OpenFoam Expert! He is an expert in CFD. I will hire him for next project. Fast delivery and High quality. Thank you a lot!
Closed User
7 months ago


Reports Writer and Content Creator

Arts, Law and Science
Apr 2014 - Present
I am a seasoned content/report writer with a decade of expertise in crafting compelling narratives and delivering impactful written communication. My experience spans a wide spectrum of genres and industries, from marketing content that captivates audiences, to meticulously researched reports that elucidate critical insights. With a keen eye for detail, an innate understanding of audience psychology, and a knack for delivering on time.

Nuclear Engineeing Experience

Research and Development Organization
Apr 2014 - Present
Creation of reactor simulations in MCNP, Matlab Python, Fortran, Openmc, Fluka etc. Doing the neutronics and thermal hydraulics analysis using expert approach in coding. I got several publications in this field. Apart from that, I do wind energy analysis using predictors and comparison with real data. Desiging and simulation of aerospace projects is also one of my professional hobbies.


Scientific Research
Apr 2014 - Present
I am designated to do the following job effectively: Dosimetry, Shielding Calculation, radiation protection, radiation safety, quality and quantity audits of nuclear medicine centers, radiotherapy centers, diagnostic labs, industrial radiography, and so on.


MS Nuclear Engineering

Korea Advanced Institute of Science and Technology, Korea, Republic of 2018 - 2020
(2 years)

MSc Physics

COMSATS Institute of Information Technology, Pakistan 2008 - 2011
(3 years)


Postgraduate diploma in Radiation safety

Nuclear Agency of Malaysia
Complete professional training in the field of radiation protection and safety of radioactive sources


Thermal-hydraulic and solid mech safety analysis for VVER-1000 reactor using analytical and CFD

DOI: 10.1016/j.pnucene.2020.103568
safety analysis of VVER-1000 using CFD and TH and Solid mechanics

Investigating the possible advantage of using LM bonded gap instead of helium in Ap-1000 NPP reactor

DOI: 10.1016/j.anucene.2021.108330
advantages of LM bonded gaps instead of helium gap is discussed

Integrated analysis of VVER-1000 fuel assembly fueled with accident tolerant fuel (ATF) materials.

DOI: 10.1016/j.nucengdes.2021.111302
Discussion on accident tolerant fuel in VVER-1000 fuel assembly of PWR reactor

Ensuring the possibility of using thorium as a fuel in a pressurized water reactor (PWR)

DOI: 10.1007/s41365-021-00981-0
Making it happen the use of thorium instead of uranium in PWR reactor

Explore the possible advantages of using thorium-based fuel in (PWR) Part 1: Neutronic analysis

DOI: 10.1016/
Instead of Uranium the possibility of Thorium based fuel discussion

Searching for the most optimum burnable absorbers for AP-1000 from neutronic, TH and Solid Mech POV

DOI: 10.1016/j.nucengdes.2022.111728
Discussed the burnable absorbers and their optimum levels

Investigation of the possibility of using a uranium–zirconium alloy as a fuel for NPP AP-1000

DOI: 10.1016/j.nucengdes.2023.112257
Discussed the possibility of Uranium Zirconum alloy for advance PWR reactor such as AP-100

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