Hire the Best Simulation Freelancers
in South Africa

More than 3,000 reviews on G2
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Willem Hendrik Oldham D.

Lambrechtsdrif, South Africa

$20/hr
4.8
14 jobs

Need content that's technically accurate, genuinely well-researched, and built to rank? I'm a published agricultural scientist with 35+ years of hands-on research and field experience — not a generalist writer guessing at agricultural topics. I write SEO-optimised articles and blog posts for agricultural businesses, gardening brands, and sustainable farming organisations that need content readers (and search engines) can actually trust. I use modern AI tools to work efficiently, but every fact, every claim, and every technical detail is verified and refined through my own research background — soil water science, crop simulation modelling, and decades of practical farming experience. You get speed without sacrificing accuracy. I specialise in: Moringa cultivation and commercial production Soil health and soil-building practices Sustainable and regenerative agriculture Crop production and agronomy Irrigation and water management Small-scale farming and homesteading Vegetable production and home gardening Agricultural research and technical articles Background: Senior Agricultural Research Technician (Agricultural Research Council), published researcher (South African Journal of Plant and Soil, 1997), international agronomy experience across South Africa and the US Midwest. Skills: Crop Modelling, Soil Water Science, Micrometeorology, Evapotranspiration Analysis, Biological Simulation, Sustainable Agriculture, SEO Content Writing, Technical Writing

  • Editing & Proofreading
  • English
  • Copywriting
  • SEO Writing
  • Article Writing
  • Writing
  • Blog Writing
  • Agriculture & Forestry
  • Search Engine Optimization
  • Website Content
  • Content Writing
  • Blog Content
  • Content Editing
  • Content Research
  • Content Rewriting
  • AI Content Editing
  • Canva
  • ChatGPT Prompt
  • InVideo
  • AI Video Generation
Wico B.

Brits, South Africa

$50/hr
5.0
2 jobs

I bridge 13+ years of Technical Management experience with Karate discipline to break through business "technical walls" using custom Python automation, SQL architecture, and web extraction. Unlike a code-only freelancer, I build ISO-grade internal tools, Streamlit dashboards, and process engineered workflows that guarantee data integrity and massive time savings. Through Structural Sensei, I bring engineering logic and structured knowledge transfer to ensure your operational systems remain agile, efficient, and future-proof. ​Custom Management Systems (LIMS/ERP/CRM): Developing professional dashboards and internal tools using Python and Streamlit. ​Process Engineering: Mapping out messy business workflows and automating them from end-to-end to eliminate human error. ​Data Architecture: Designing SQL structures that turn raw information into actionable business intelligence. ​Precision Automation (General & Simple Tasks) ​Efficiency is scalable. I am equally comfortable handling high-precision "one-off" tasks that keep your daily operations moving: ​Web Scraping & Extraction: Automating lead generation or market research from any web source into clean Excel/CSV formats. ​Document Processing: Automating the cleaning of messy data or merging thousands of PDFs/Reports. ​Scripting & Tooling: Writing clean, efficient Python scripts for file organization, media enhancement, or routine productivity. ​Why Choose a Technical Manager? ​Unlike a "coder-only" freelancer, I bring a management mindset to every contract. I understand ISO-level standards, professional documentation, and the importance of meeting hard deadlines. ​Whether you need a full-scale automation system or a simple 5-minute script to save 5 hours of work, I deliver precision, logic, and professional-grade results. ​Python ​Web Scraping ​Data Automation ​Streamlit ​Process Improvement ​Workflow Optimization ​Technical Management ​Data Extraction ​SQL ​Scripting

  • Desktop Application
  • Web Application
  • Python
  • Civil Engineering
  • Science
  • Data Science
  • Quality Control
Shuaib B.

Durban, South Africa

$80/hr
4.9
133 jobs

Mechanical Engineer | CFD · FEA · CAD | 2× USPTO Patents | Top Rated Plus Overview: Mechanical engineer specialising in CFD, FEA, and thermal systems, with two granted USPTO patents in cooling technology (US 12,452,991 · US 12,453,048). I design and validate heat exchangers, HVAC systems, centrifugal fans, and refrigerant loops in OpenFOAM, ANSYS Fluent, SimScale, and SolidWorks Flow Simulation. Top Rated Plus on Upwork , 85+ contracts, 3,000+ hours, $275K+ earned. Based in Cape Town, South Africa. Former CTO of a product development company. I don't ship black-box "trust me" reports. Every deliverable carries the mesh, Y+ verification, residual history, and flow-uniformity evidence behind the numbers. Results your team can defend in a design review. And because I've built a Python+OpenFOAM automation pipeline, I run parametric sweeps hand-meshing freelancers can't: on Heat exchanger contracts(2026), a 224,000-point overnight sweep on a centrifugal heat exchanger surfaced a geometry that more than doubled system COP. Core Services CFD: heat exchangers, HVAC, centrifugal fans, ducts, refrigerant loops; conjugate heat transfer, natural convection, multiphase flow with species transport, turbulence modelling (k-ω SST, realizable k-ε, LES where warranted). FEA / Structural: stress, fatigue life, vibration, drop/impact testing, nonlinear and topology optimisation, composites (CalculiX, ANSYS Mechanical). Acoustic / NVH: noise prediction and NVH analysis. CAD & Documentation: SOLIDWORKS parametric modelling, assemblies, sheet metal, weldments, surface modelling, photorealistic rendering, and manufacturing-ready technical drawings. Software: OpenFOAM, ANSYS Fluent, ANSYS Mechanical, SimScale, STAR-CCM+, COMSOL Multiphysics, SolidWorks (CAD + Flow Simulation), CalculiX, Gmsh, AutoCAD, Fusion 360, MATLAB, Python. Selected Work: Heat exchanger (2026) — 224k-point automated CFD sweep on a centrifugal heat exchanger; found a geometry that >2× system COP. Brine–CO₂ corrosion modelling, oil-field pipework (2025–26, active) — multiphase CFD with species transport. USC approved Valve (2025) — backflow-preventer pressure-loss validation to AWWA C510 across six configurations. EvansWerks (2023–26) — 32-month principal-engineer engagement for Product development Patented airless tyre (2026) — coupled FEA + thermal feasibility on an adaptive airless tyre (CalculiX + Gmsh). toronto university wind tunnel (2025) — contraction-section CFD achieving <1% velocity-profile RMS in the working section. Credentials: Mechanical Engineering, advanced simulation focus (in progress) · BSc.Eng (Hons) Mechanical Engineering, UKZN · Aerospace Systems Research Group affiliate since 2019 · 2× granted USPTO patents in cooling-system technology. Industries: Aerospace, Automotive, Energy, Manufacturing, Medical Devices, Consumer Products, HVAC, Electronics Cooling. Working With Me: Send a brief or job link → scope, a fixed or hourly quote, and a stated turnaround within one business day. Every project ships with validated mesh, residual + Y+ + flow-uniformity plots, side-by-side configuration comparison, and a one-page executive summary. Regular updates throughout, designs optimized for manufacturability. Overlap with US, EU, and APAC business hours.

  • Finite Element Analysis
  • CAD
  • Mechanical Engineering
  • Product Design
  • Structural Engineering
  • Mathematical Modeling
  • Physics
  • Hydraulic Engineering
  • Calculus
  • Computational Fluid Dynamics
  • CFD Analysis
  • OpenFOAM
  • ANSYS
  • HVAC System Design
  • MATLAB
  • Python
Laraleigh R.

Randburg, South Africa

$30/hr
5.0
18 jobs

As a results-driven entrepreneur and highly accomplished Freelancer, I bring a powerful combination of operational leadership, project management expertise, and advanced digital marketing execution to every project I take on. My career foundation was built as the Director of Operations for a long-standing Marketing and Growth Agency in New York, where I refined my ability to manage complex systems, optimise workflows, and deliver measurable results at scale. Since then, I have expanded my expertise by building and operating my own business, applying strategy in real time and producing tangible growth across multiple digital channels. In recent years, I have designed and launched multiple high-performing websites, built and optimised conversion-focused sales funnels, and managed end-to-end social media ecosystems. My work spans content strategy, copywriting, creative direction, scheduling, analytics, and paid media campaign management, all aligned to drive visibility, engagement, and revenue. I have extensive experience across digital marketing systems, automation, operations, and global outsourcing. This has enabled me to successfully lead and scale teams of 40+ freelancers, manage key client relationships, and support executive leadership with strategic decision-making that drives sustainable business growth. Whether operating as a Director of Operations, Head of Project Management, Marketing Strategist, Compliance Officer, or Executive Partner, my approach remains the same: take full ownership, think strategically, and execute with precision. I am deeply invested in every project I undertake and consistently go beyond expectations to ensure meaningful results. My background in business development, technology, project management, and digital communication allows me to adapt quickly to evolving market trends and implement innovative, growth-focused solutions. I don’t just understand strategy, I build, launch, test, and scale it. When you bring me onto your team, you gain more than a freelancer, you gain a strategic partner who understands how businesses operate from the inside out and knows how to turn ideas into performance. Let’s collaborate and take your projects to the next level.

  • Microsoft Office
  • HR & Business Services
  • Life Coaching
  • Writing
  • Staff Recruitment & Management
  • Phone Communication
  • Scheduling
  • Google Workspace
  • Customer Experience
  • Communications
  • Project Management
  • Administrative Support
  • Email Communication

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