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I’m expanding my consultancy and need seasoned chemical engineers from Pakistan to become part of my core team and tackle a steady stream of projects. The assignments span petrochemical, pharmaceutical and environmental engineering work, so every week can bring anything from early-stage R&D to plant-scale process optimisation and the occasional quality-control audit. The main, non-negotiable requirement: you must be genuinely proficient with Aspen HYSYS and Siemens gProms. Expect to build steady-state and dynamic models, run sensitivity studies, size major equipment, and translate the results into concise technical recommendations that management can act on. Typical deliverables for any given task include: • The native simulation files with clean, converged models • A brief design or optimisation report highlighting assumptions, key results and next steps • Supporting data sheets or calculation spreadsheets where relevant All simulations must close overall mass and energy balances to within 1 % and follow good engineering practice for thermodynamic package selection, convergence criteria and documentation. If you thrive on varied technical challenges, can turn simulations around quickly and communicate findings clearly, I’m eager to hear how you can add value to the team.
Project ID: 40322532
8 proposals
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8 freelancers are bidding on average $123 NZD for this job

I am a seasoned chemical engineer based in Pakistan with extensive experience in both steady-state and dynamic simulation using Aspen HYSYS and Siemens gPROMS. Over the years I have supported petrochemical, pharmaceutical, and environmental projects ranging from early-stage R&D to plant-scale optimization and quality audits. I am comfortable building converged, well-documented models, performing sensitivity studies, sizing equipment, and delivering clear technical recommendations. My simulations consistently close mass and energy balances within 1% and follow disciplined practices for thermodynamic selection and convergence. I can turn around varied tasks quickly, communicate findings succinctly, and contribute effectively to your consultancy’s core team. I am ready to engage on a steady stream of projects and would be pleased to discuss how my skills align with your upcoming assignments.
$140 NZD in 7 days
3.6
3.6

I am a Process Engineer with 14+ years of experience and strong expertise in Aspen HYSYS, including steady-state and dynamic simulations, along with exposure to advanced modeling approaches. I can deliver fully converged models, equipment sizing, sensitivity analysis, and clear, actionable technical reports aligned with industry best practices.
$50 NZD in 4 days
2.6
2.6

I am a seasoned chemical engineer based in Pakistan with professional mastery of Aspen HYSYS. I specialize in developing converged steady-state and dynamic models that strictly adhere to a 1% mass and energy balance closure across petrochemical, pharmaceutical, and environmental sectors. My expertise includes selecting appropriate thermodynamic packages, performing rigorous sensitivity studies, and sizing equipment to deliver clean native files alongside actionable technical reports. I am prepared to join your core team immediately to provide the high-quality, quick-turnaround simulations and concise data sheets your consultancy requires.
$140 NZD in 7 days
0.6
0.6

"I am a chemist with extensive, hands-on experience in complex chemical formulations and a deep specialization in water treatment processes and equipment design. My professional journey uniquely combines the precise chemical understanding needed to create intricate formulations with the engineering expertise required to design, model, and optimize the very systems that utilize them. This rare, dual background allows me to provide a holistic value that can seamlessly transition from molecular-level chemical R&D to full-scale, optimized water treatment plant design. I am confident that this comprehensive skill set makes me the ideal candidate to tackle your consultancy's most challenging environmental and chemical engineering projects, from initial concepts to validated plant performance."
$140 NZD in 7 days
0.0
0.0

Chemical engineer with 2+ years HSE background, skilled in process analysis, committed to delivering accurate simulations and detailed reports on time.
$140 NZD in 7 days
0.0
0.0

I have experience of handling hazardous chemicals and solvents. Chlorination based products like thionyl chloride
$130 NZD in 7 days
0.0
0.0

Hello, I’m a chemical engineer with strong hands-on experience in Aspen HYSYS and Siemens gPROMS, specializing in steady-state and dynamic process simulations across petrochemical and environmental systems. I routinely develop converged models, perform sensitivity analyses, and ensure mass and energy balance closure within strict tolerances. I’ve worked on equipment sizing, thermodynamic package selection, and process optimization, delivering clean simulation files along with clear, decision-focused reports. My approach emphasizes accuracy, speed, and practical engineering insight that management can act on. I’m confident I can contribute effectively to your growing consultancy and handle diverse weekly assignments with consistency. Looking forward to collaborating.
$100 NZD in 7 days
0.0
0.0

Hello, I have a strong background in chemical and environmental engineering with proven expertise in Aspen HYSYS and gPROMS modeling. I develop accurate simulations, perform detailed analyses, and support decision-making through clear technical reporting. My workflow ensures well-converged models, validated assumptions, and complete mass/energy balance compliance. I also provide supporting calculations and structured documentation for every task. I’m highly adaptable to different project types and committed to delivering precise, timely results. I’d be glad to join your core team and contribute long-term.
$140 NZD in 7 days
0.0
0.0

sargodha, Pakistan
Member since Dec 1, 2017
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