Freelancer vs Upwork (2026)
Freelancer vs Upwork (2026) - An Honest, Side-by-Side Comparison for Businesses and Freelancers
Simulation is the process of creating a model of a system, such as a network, environment, or process flow, where variables can be experimented with to gather data and to analyze the outcome. A Simulation Engineer enables their client to research and validate the theoretical predictions with different test scenarios before putting those theories into actual practice. They can provide their clients with highly relevant data gathered from simulation to help make decisions with maximum efficiency in fields such as product design, system optimization, and vehicle engineering.
Simulation is used in almost every industry as it offers flexibility and accuracy in experiments to make sure that the design under consideration is secure and able to accomplish tasks effectively. An expert Simulation Engineer is an invaluable asset when it comes to creating accurate simulations based on theoretical equations - they can make sure these simulations are sufficiently up-to-date and that there is consistency in the data collected by these tests.
Here's some projects that our expert Simulation Engineer made real:
Simulation Engineering is a highly sophisticated process, one that requires an experienced engineer who has both technical knowledge and imaginative thinking. Our expert Simulation Engineers can provide our clients with invaluable assistance in creating intricate simulations so they can have confidence in their decisions. If you're looking for help in carrying out seamless simulations, why not post your project today on Freelancer.com? Hire a freelance Simulation Engineer to help you make sure your project comes alive without fail.
De 10,082 opiniones, los clientes califican nuestro Simulation Engineers 4.91 de un total de 5 estrellas.Simulation is the process of creating a model of a system, such as a network, environment, or process flow, where variables can be experimented with to gather data and to analyze the outcome. A Simulation Engineer enables their client to research and validate the theoretical predictions with different test scenarios before putting those theories into actual practice. They can provide their clients with highly relevant data gathered from simulation to help make decisions with maximum efficiency in fields such as product design, system optimization, and vehicle engineering.
Simulation is used in almost every industry as it offers flexibility and accuracy in experiments to make sure that the design under consideration is secure and able to accomplish tasks effectively. An expert Simulation Engineer is an invaluable asset when it comes to creating accurate simulations based on theoretical equations - they can make sure these simulations are sufficiently up-to-date and that there is consistency in the data collected by these tests.
Here's some projects that our expert Simulation Engineer made real:
Simulation Engineering is a highly sophisticated process, one that requires an experienced engineer who has both technical knowledge and imaginative thinking. Our expert Simulation Engineers can provide our clients with invaluable assistance in creating intricate simulations so they can have confidence in their decisions. If you're looking for help in carrying out seamless simulations, why not post your project today on Freelancer.com? Hire a freelance Simulation Engineer to help you make sure your project comes alive without fail.
De 10,082 opiniones, los clientes califican nuestro Simulation Engineers 4.91 de un total de 5 estrellas.I need a complete H∞-based control solution that lets my missile autopilot remain stable and reliable across a wide envelope of flight conditions and model uncertainties. The work starts from the nonlinear or linearised dynamics I will supply; from there, I expect you to derive or refine the state-space model, set up the weighted mixed-sensitivity formulation, and tune the H∞ controller so it meets industry-standard robustness and performance margins. Please implement and simulate everything in MATLAB/Simulink, documenting the exact toolbox functions and scripts you use so I can reproduce every step. When the design is closed, deliver: • Clean, well-commented MATLAB/Simulink files for the plant model, weighting functions, synthesis, and time-/frequency-domain analyses ...
I am looking for an experienced RF/antenna engineer to help optimise the performance of my dual-band antenna design integrated with a frequency selective surface (FSS). The antenna structure has already been designed and simulated. However, further optimisation is required to improve key performance parameters such as gain, bandwidth, return loss (S11), radiation characteristics, and polarisation performance at both operating frequencies. Scope of Work The selected expert will be expected to: 1. Analyse the existing dual-band antenna design 2. Optimize the Frequency Selective Surface (FSS) structure 3. Improve gain and bandwidth performance 4. Optimize S11 (return loss) and impedance matching 5. Achieve a broadside radiation pattern (0° direction) at both operating frequencies 6...
I have an intermediate-level assignment that must be completed in Excel with the @Risk add-in, and I want to finish it myself while being coached in real time. My main sticking points are building the simulations correctly and interpreting the risk analysis output that follows, so I’ll need you to explain each step, verify my formulas, and help me understand the Monte Carlo results rather than simply doing the work for me. Speed is important—I’m ready to start as soon as you are and would like to wrap this up quickly. Because this is a walkthrough, live collaboration (screen-share or similar) is essential. I’m comfortable scheduling multiple short sessions if that’s easier, but I’d like clear milestones so I always know what comes next and can practise ...
I’m working through a Chemical Engineering lab assignment for the College of Engineering & Technology and need an experienced Aspen HYSYS user to guide me from start to finish. The experiment involves building a complete process model, running accurate simulations, and interpreting the results well enough for inclusion in my final report. The specific unit operations and data sets are ready; what I’m missing is the expert touch that ensures my stream properties, thermodynamic package selection, and convergence settings are all sound. I’d also appreciate advice on how to present key findings—energy balances, performance curves, and sensitivity analyses—in a clear, professional format that meets academic standards. Deliverables I’m aiming for: ...
I need a complete engineering package for a compact, stainless-steel (SS316) system that transfers two high-pressure gases—oxygen and a second gas—from 4 L, 1 800-2 000 psi supply cylinders into a 5 L storage tank. The small tank will serve purely for storage. Filling must occur in a defined sequence: first oxygen to a set intermediate pressure, then the second gas until the vessel reaches roughly 1 000 psi total. Gas purging is the preferred method for every line before and after each fill so that no pressure or cross-contamination remains prior to disconnecting the storage tank. The layout has to stay very tight—short runs only—and all wetted parts are to be SS316. Control and safety monitoring will be handled through a PLC with an HMI. Plan on integrating: &b...
I’m putting together a natural-gas industrial heating line and need a burner engineered to deliver between 300,000 and 1,000,000 BTU/hr. The goal is reliable, steady heat for process heating—no power generation or incineration duties—so flame stability, turn-down ratio, and straightforward maintenance are priorities. Here’s what I’d like from you: • A complete burner design (mechanical layout, materials, and sizing) compatible with standard natural-gas supply pressures. • Combustion calculations that verify the stated heat output and outline achievable efficiency. • A bill of materials with part numbers that are globally available, plus any proprietary components clearly flagged. • Recommended control scheme—including safety ...
I am looking for an experienced freelancer with knowledge in: Power systems Transformer fault analysis Machine learning / AI MATLAB or PowerWorld simulation The goal is academic guidance and technical support for my research work. Current Stage of Research I have already prepared: Thesis proposal Initial literature review Research scope and methodology For the next supervisor meeting, I need help refining the following research components. Tasks Required 1. Updated Literature Review Assist in expanding the literature review using recent research papers (last 3–5 years) related to: Transformer fault detection AI-based predictive maintenance Machine learning for power system asset management Sources may include: IEEE Elsevier Google Scholar Springer 2. Dataset Collection Help identify ...
I'm seeking an experienced ROS2 developer to implement navigation and path planning for a robot in mixed environments (both indoor and outdoor). The project is urgent and needs to be completed as soon as possible. Key Requirements: - Develop robust navigation algorithms - Ensure reliable path planning in mixed environments - Integrate with existing ROS2 framework - Test and validate in real-world scenarios Ideal Skills: - Proficiency in ROS2 - Strong background in robotics navigation - Experience with mixed environment challenges - Ability to meet tight deadlines - experience with clear path jackal robot is good Please provide examples of similar work done and your estimated timeline for completion.
I need a complete PLC + HMI package built around an Automation Direct CLICK Plus CPU to run a small pilot test unit used for process control. You will receive the P&ID for the skid so you can map every I/O point and design the tag structure accurately. Your scope covers three parts: • PLC program written in the CLICK programming environment, fully commented and ready to load. • HMI graphics and logic (C-more or other Automation Direct-compatible platform) that give operators clear access to temperature, flow and pressure data as well as basic start/stop and alarm handling. • A shopping list of all hardware we must order—CPU, PS, any expansion I/O, comms modules, touch panel size, enclosure accessories, everything needed to power up on site. Once hardware i...
I am modelling a single-segment continuum robot whose backbone is manufactured in polyurethane and ABS. Your task is to set up and run parametric finite-element studies in ANSYS so we can see how the structure curves when one tendon is pulled with forces in the low 1 – 10 N range. For each geometric variant of the backbone I will supply (length, diameter, tendon-channel offset, bakbone type etc.), I need two clear results: • the exact tendon force applied, and • the resulting bend curvature radius of the backbone. Once all variants are simulated, please compare the force-radius trends and point out which configuration gives the most favorable bending performance so I can move forward with an optimal design. Deliverables must include the editable ANSYS project files, any ...
I am seeking an experienced mechanical or FEA engineer to perform a static structural finite element analysis (FEA) on a plastic lid component made from Polycarbonate (PC-110). The goal of the analysis is to estimate the force required to cause yielding or failure when a load is applied at the center of the lid panel. A STEP file of the part and a detailed instruction PDF are attached here. The simulation should apply a load perpendicular to the lid surface over a 1-inch diameter circular area at the center, while the perimeter of the lid is constrained as shown in the attached instructions. The analysis should gradually increase the load until material yield occurs (Von Mises stress ≥ 9,000 psi). Deliverables should include a short simulation report (PDF), stress plots, deformation plo...
I’m building an offline-only ground-control-station simulator for a loiter-ammunition drone and need a developer who can deliver a Windows desktop application that feels and behaves like the real thing. Core functionality • A full-screen user interface that lets me arm, launch, loiter, and strike just as I would on an operational GCS. • Realistic drone flight and sensor physics so altitude, speed, battery, and link quality evolve credibly over time. • Integrated terrain mapping that runs locally—no calls to external map servers—yet still allows zoom, pan, and elevation display. • On-screen status indicators (GPS, attitude, comms, payload health), a simulated live video feed rendered from the virtual camera, and mission-planning panels where wa...
I am looking for someone who can create biomass gasification from EFB and carbon capture by MEA. The result for both biomass gasification and carbon capture by MEA need to be validated with results from the journals (biomass gasification and carbon capture by MEA has their own experimental journal). Both of them needs to be done by Aspen Plus. At the first stage, there are 2 different simulation : biomass gasification & carbon capture using MEA. The biomass gasification simulation needs to have the same result of syngas composition (CH4, CO, CO2 and H2) with the result from journal. The result needs to be validated based on the temperature at 650,700,750,800,850 and 900 Celcius. While for the MEA-carbon capture, the results need to be validated by the concentration of the MEA at 30%,...
I need a robust arc-suppression circuit engineered specifically for my RF welding machine. The goal is simple and non-negotiable: stop destructive arcing before it reaches the generator or matching network, protecting the entire system from costly downtime and repairs. Key points you should know up front • Purpose: prevention of equipment damage only—operator safety circuits are handled elsewhere. • Architecture: solid-state components throughout; no relays or mechanical contacts. • Ratings: I will share the operating voltage and current range once we start, so your design must be adaptable within those limits. What I expect to receive 1. Schematic with clearly labeled protection stages (detection, quench, reset). 2. Bill of materials with manufacturer p...
I need five separate input-output matching networks for the MACOM CGHV270305, one for each of the following RF bands: • 30–200 MHz • 200–600 MHz • 600 MHz–1.8 GHz • 1.8GHz–4 GHz • 4GHz–6 GHz For every band the network must deliver at least 30 W across the full span while maintaining solid, stable gain. I will verify this from the final performance plots, so please present both power-output and gain data together in clear scatter-plot format. Alongside the simulation results I need production-ready DXF files of the matching PCB layouts. Keep the drawings aligned with recognised industry standards so they can move straight into fabrication without extra re-work. Deliverables 1. S-parameter models (touchstone) and any suppor...
“Modeling and Simulation of a Cogeneration-Based Hybrid Energy System for a Building using TRNSYS.” The project focuses on a building-scale energy system in which electrical and thermal demands are supplied through a combination of cogeneration, renewable sources, and energy storage. Proposed system configuration: Primary generation: micro gas turbine operating in load-following mode, producing electricity with heat recovery for domestic hot water. Renewable integration: photovoltaic system and wind turbine supporting electrical production and reducing fuel consumption. Thermal support: solar thermal collectors contributing to domestic hot water production, with auxiliary boiler backup. Energy storage: electrical battery storage and thermal hot-water storage tank. Energy...
Scope of Work: Hydraulic Simulation of Water Spray Manifold System I require a hydraulic simulation of a water spray piping manifold installed inside a circular drum. The objective is to verify that each spray hole (nozzle) receives the required pressure and flow rate under the given operating conditions. The manifold distributes water through multiple small spray holes, and the simulation should confirm whether the design achieves uniform flow distribution and minimum pressure requirements at each spray point. Objectives: The simulation should determine: Pressure distribution along the spray manifold. Flow rate through each spray hole. Verification that each spray hole receives: Minimum pressure: 2.5 barg Minimum flow rate: 2.5 L/min Identification of any uneven distribution or pressu...
I’m designing a new Hindu temple and want the sanctum bathed in gentle, natural sunlight every day. The idea is to install a compact, telescope-like optical assembly on the roof that captures the sun’s rays and then diffuses them evenly across the deity, avoiding harsh focal spots or glare. Here’s what I need from you: an end-to-end optical solution—concept, ray-trace, mechanical layout, and a concise installation guide—completed within a month. . If you prefer Zemax, Code V, LightTools or an equivalent package, please work in the environment you’re most comfortable with; just be sure I receive the native files plus exported PDFs. When you respond, include examples of past work that prove you’ve tackled similar illumination or solar-collectio...
I need an experienced CAE specialist to help me finish my final-year mechanical engineering project: a fully detailed finite-element model of a small-caliber projectile striking a multilayer bullet-resistant vest. I have already defined the basic geometry and material stack-up in HyperMesh, and the plan is to solve everything with the explicit OpenRadioss solver. What I still require is expert guidance—and hands-on modelling work—so that the simulation reliably predicts: • penetration depth and overall armor performance, • the complete stress and strain fields inside the ceramic and composite layers (stress distribution, strain distribution), • projectile behaviour such as velocity reduction, deformation, and residual velocity, • correct energy accou...
I am looking for someone who can create biomass gasification from EFB and carbon capture by MEA. The result for both biomass gasification and carbon capture by MEA need to be validated with results from the journals (biomass gasification and carbon capture by MEA has their own experimental journal). Both of them needs to be done by Aspen Plus. At the first stage, there are 2 different simulation : biomass gasification & carbon capture using MEA. The biomass gasification simulation needs to have the same result of syngas composition (CH4, CO, CO2 and H2) with the result from journal. The result needs to be validated based on the temperature at 650,700,750,800,850 and 900 Celcius. While for the MEA-carbon capture, the results need to be validated by the concentration of the MEA at 30%,...
Dont send me AI content . I am using AI detection to check your proposals I need an engineer who knows both Pro-face Blue projects and Beckhoff TwinCAT HMI Server inside out. The task is to take my existing Pro-face HMI application, study how every screen, alarm and data point works, then rebuild the same functionality in the Beckhoff HMI environment so it talks smoothly to a new Beckhoff PLC. You will start by reviewing the current project files I provide, mapping all tags, recipes and alarms. From there, recreate the screens, navigation and any underlying logic in TwinCAT HMI. Along the way I expect you to flag any behaviour that will need re-thinking in Beckhoff, suggest work-arounds, and implement them. Because the line cannot afford long downtime, I want the converted HMI fully test...
Here is what I need from you: • Live or recorded sessions that walk me through project setup, mesh generation, material assignment, heat-source definition, and result interpretation. Complete study of the software and make me good in it. • Worked examples for each process (arc, resistance, laser) . • Tips on choosing solver settings so runs finish in reasonable time without sacrificing accuracy. • A short checklist I can follow after the training to make sure every new model I build captures the right thermal outputs. I already know welding theory, so the focus should stay on Simufact’s interface, modelling strategy, and validation of the simulation against real-world weld data. Remote delivery is fine—screen-share, annotated PDFs, or short videos al...
I need an Aspen Plus specialist to build and analyse a full process-flow model for my plant concept. The priority is clear, accurate design and thorough performance analysis rather than broad optimisation at this stage. You will start from my raw stream data and block sketch, translate it into a working Aspen Plus flowsheet, size and configure the major equipment, then deliver a concise technical report that explains assumptions, convergence settings, key results and any recommendations for improvement. If you rely on add-ins or external calculation tools, note them explicitly so I understand the full workflow. Deliverables • Aspen Plus (.apw) file with fully converged flowsheet • Brief design report (PDF or Word) summarising methodology, equipment sizing, energy and mass ...
Freelancer vs Upwork (2026) - An Honest, Side-by-Side Comparison for Businesses and Freelancers
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