I am an intermediate level embedded systems engineer. I design embedded systems from design to PCB. I develop firmware in C and C++ for different microcontrollers: Microchip PIC, STM32 and texas Instruments MCUs.
Embedded System
STM32
PIC32
Atmel AVR
PCB Design
Analog Electronics
PIC Programming
KiCad
Altium Designer
PSPICE
ARM Cortex-M
ARM Microcontroller
C
C++
C#
Linux
Microcontroller
Wendel W.
Cape Town, South Africa
$17/hr
5.0
5 jobs
Hands-on technology professional accustomed to working in complex, project-based environments. Multifaceted experience in QA software testing, software development and user-acceptance testing.
Perform system, unit, acceptance, regression, load and functional/performance testing on many applications using both automated and manual testing methods. Validate, verify, communicate and resolve software issues through careful, thoroughly documented testing to maximize best practices.
Skills:
• SQA Tools & Best Practices
• Test Cases, Plans & Scripts
• Defect & Bug Discovery
• Technical Specification Analysis
• System & Unit Testing
• Acceptance Testing
• Regression Testing
• Load Testing
• Tracking, Logging & Reporting
• Program Logic & Optimization
• Software Architecture Technologies
• Issue Identification
Software QA
QA Engineering
Test Case Design
Gambling
Game Testing
Manual Testing
Performance Testing
Francis Kalonji M.
Sandton, South Africa
$150/hr
5.0
3 jobs
I help hardware companies build things that don't break.
I'm Francis Mbuyamba, founder and principal engineer at Mbuyamba Engineering. For five years, I led mechanical engineering at a US product development firm, designing consumer hardware engineered for child users, public installations built for 300,000+ usage cycles and 25-year operational lifespans, and aerospace test infrastructure. I now run an independent engineering consultancy serving clients across North America, Europe, and Africa.
The gap I work in:
Most hardware fails for predictable reasons: designs that look good in CAD but don't survive manufacturing, components that work on day one but not on day one thousand, products that meet specifications on paper but fall apart in the hands of real users. That's where independent engineering judgment earns its keep.
Where I add the most value on Upwork:
✓ Design for Manufacture (DFM) reviews, I review CAD before tooling commitment, catching wall thickness, draft angles, undercuts, tolerance stackup, and materials issues that cost 10 to 50 times more to fix in production than in CAD.
✓ Durability engineering, I assess hardware against real-world conditions: cycle life, fatigue, materials behavior, environmental exposure, and maintenance access. Especially relevant for products that will be used in public, in harsh environments, or with long operational lifespans.
✓ Independent technical review, external engineering perspective on designs, vendor proposals, or technical decisions where you need a second opinion before committing capital.
✓ FEA and structural analysis, static, modal, and dynamic load cases for mechanical assemblies and structures.
✓ Mechanism and small mechanical system design, snap-fits, mounting systems, removable modules, compact electromechanical assemblies for consumer and industrial products.
Whom I work best with:
Hardware companies, experience studios, museum exhibit fabricators, consumer product startups, and VC firms doing technical due diligence on hardware investments. The clients I work with usually have strong creative or product vision but need engineering judgment from outside their team to catch what they're too close to see.
Background:
– Dual BSc Mechanical and Aerospace Engineering, West Virginia University (GPA 3.6)
– EIT certified, Manitoba (Canada) and Florida (USA)
– ECSA Candidate Engineer (South Africa), registration in progress
– SolidWorks, Fusion 360, FEA (SimScale), Python automation
How I work:
Clear scope, defined deliverables, and professional documentation. I am direct about what I can and can't do. If your project isn't a fit for my expertise, I will tell you upfront.
For new client engagements, I offer a paid 60-minute consultation as the cleanest way to evaluate fit before committing to a larger project. Available Wednesdays and Fridays.
Design Analysis
Machine Design
Electromechanics
Project Engineering
Structural Analysis
Python
SolidWorks
Mechanical Engineering
Finite Element Analysis
Jonno K.
Cape Town, South Africa
$70/hr
5.0
15 jobs
I am a certified food scientist and sports nutritionist (NTEC and QLS UK) who helps food or beverage or supplements ideas to become successful commercial products for the consumer market. I have helped foodbev startups of all sizes with development services & turnkey solutions. Additionally I have worked with Mondelez, Nestle, Unilever, Danone, Lactalis, Coca Cola, Pepsico, AB Inbev on ingredient challenges and product solutions. My knowledge comes from my M Sc Food Science and 25+ years in the food and beverage industry. My approach to consulting is collaborative and tailored to each client's unique needs. I always love a challenge and working closely with business leaders to understand their challenges, opportunities, and goals, and then develop customized solutions that deliver results.
Let the clients' testimonials speak first:
⭐⭐⭐⭐⭐ 5.00
"Jonno's deep understanding of the relationship between ingredients, proper nutrition and overall health has been instrumental in the success of my products. Jonno's exceptional skills in product development and food creation shine through in every interaction. His expertise as a formulation expert has brought a level of professionalism and insight that is hard to find."
⭐⭐⭐⭐⭐ 5.00
"I highly recommend Jonno to anyone looking for a knowledgeable, experienced, and dedicated nutritionist and formulation expert. As a startup in the health and wellness industry, I was struggling with troubleshooting and finding the right ingredients for my products. Jonno's expertise and solutions were invaluable in helping me overcome these challenges."
⭐⭐⭐⭐⭐ 5.00
"His in-depth knowledge of ingredients and their functionalities allowed us to create unique and high-quality products that stood out in the market. Jonno's problem-solving skills were also exceptional, and he was able to come up with innovative solutions to any roadblocks we encountered. Thanks to Jonno's guidance and support, our startup company has seen tremendous success, and we couldn't have done it without him. I highly recommend Jonno to anyone looking for a knowledgeable and experienced food and beverage product developer specialist."
My knowledge of dietary supplements comes from over 20 years in the sports nutrition industry as: business owner for 3 years; trader of proteins, amino acids, carbohydrates and supplier to leading global brands like USN, Biogen, Optimum Nutrition. I have more commercial experience and product knowledge of building a succesful dietary supplement brand than anyone else. Honest!
▶ Master Science degree in food science/engineering & 5 years in manufacturing environment.
▶ Successful consulting business since 2016 with over 120 clients.
▶ 3 years business owner of dietary supplement & sports nutrition products so I have earned my stripes in the trenches.
▶ Over 180 successful projects in new product development (health supplements & wellness products, beverages, protein & sports bars, cannabis edibles, pet nutrition, bakery, snacks, dairy, alcoholic beverages, sauces, dietary mixes, meat, dairy alternatives, meat alternatives)
▶ Trained auditor & 7 years in food safety management systems (HACCP, GMP, FSSC22000, GFSI, BRC, GlobalGAP)
▶ 6 years market research, data analysis, supply-demand, and trade research
▶ Experience accross global countries (USA, UK, South Africa, Sweden, Australia, Canada, Kenya, Zambia)
Collaboration and partnership for you means the following:
Create and innovate new custom formulation that sets your products apart.
Optimize and perfect winning solutions for production challenges like shelflife and quality obstacles.
Thrive and learn more about ingredients, regulations and dietary trends shaping the food industry.
Connect and network with reliable ingredient suppliers and trustworthy third party contract manufacturers and copacking.
Focused and agile to navigate complex challenges such as supply chain disruptions, changing consumer preferences, and regulatory changes.
*DIETARY SUPPLEMENT CONSULTANT*
🟦 Commercialize health into retail products.
🟦 Natural ingredients & nutraceuticals
🟦 Adding value to superfoods
🟦 Ensure correct labelling
🟦 Optimized shelf life & quality
*FULL PRODUCT DEVELOPMENT*
🟩 Concept ideation to prototyping
🟩 Product innovation with R&D (research and development)
🟩 Feasibility & labelling claims
🟩 Process development, testing & validation
🟩 Copacking & Contract Manufacturing
*PROJECT RESEARCH CONSULTANT*
🟧 Investment projects (Techno-Economic Analysis & IRR)
🟧 Value Chain Analysis (VCA)
🟧 Data analysis with ETL (Extract, Transform, Load)
🟧 Market trade research
🟧 Supply Chain research (demand-supply)
🟧 Food & Beverage Ingredients & chemicals research
*QUALITY ASSURANCE (QA) & SYSTEMS*
🟪 Food safety management system (FSMS)
🟪 Digital Compliance software
🟪 Transition from basic GMP/HACCP to GFSI accreditation (FSSC22000, BRC, GlobalGAP, SQF)
Chemistry
Label Compliance
Product Formulation
Research & Development
Regulatory Compliance
Product Development
Nutrition
Food & Supplements
Food Science
Sports & Recreation
Procurement
Food & Beverage
Recipe Development
Food Engineering
Food Packaging
Chu-young Thabo T.
Kempton Park, South Africa
$20/hr
5.0
7 jobs
Transforming Ideas into Scalable, Impactful Digital Solutions
Hello! 👋
I'm Chu-young Thabo Theko, a passionate and accomplished Full Stack Developer and Software Engineer with over 5 years of experience. My expertise spans front-end and back-end development, cloud-based solutions, and creating intuitive, user-centric applications. Whether you're looking to build a modern web application, develop robust APIs, or enhance existing systems, I’m here to help bring your vision to life.
What I Can Do for You:
Front-End Development:
~Craft responsive and visually stunning interfaces using React, Angular, Next.js, and Tailwind CSS.
~Develop seamless user experiences with modern frameworks like Material-UI, SASS, and Bootstrap.
Back-End Development:
~Build scalable and secure back-end systems with Node.js, Nest.js, and Express.js.
~Design and integrate RESTful and GraphQL APIs for efficient data exchange and system interoperability.
Cloud and Database Solutions:
Develop cloud-integrated applications using AWS S3, Firebase, and Docker.
Optimize database management with PostgreSQL, MongoDB, and Microsoft SQL Server.
Custom Applications and Tools:
Create bespoke solutions like admin consoles, cloud installers, and end-to-end project management tools.
Utilize libraries like TensorFlow, Scikit-learn, and Three.js for data-driven and visually engaging projects.
What Sets Me Apart:
~Comprehensive Skillset: Expertise across multiple stacks, frameworks, and tools ensures efficient, scalable solutions.
~Quality-Driven Development: Commitment to clean, maintainable, and performance-optimized code that adheres to industry best practices.
~Client-Centric Approach: Exceptional communication and collaboration to ensure your project goals are met and exceeded.
~Versatility Across Industries: Successfully delivered solutions for fintech, e-commerce, marketing, and SaaS applications.
Projects that Showcase My Expertise:
~Snapdart: A mobile-responsive banking application leveraging Next.js, Plaid, and Dwolla for seamless fund transfers and transaction management.
~Noom (Zoom Clone): A fully functional video conferencing platform built with Stream.io, Clerk, and Vercel.
~Travel and Attractions: A global search application integrating Google and Open Weather APIs for real-time data insights.
Certifications and Continuous Learning:
~Certified in NestJS, NodeJS, Angular, and Data Structures and Algorithms, among others.
~Recognized as a Certified SAFe 6 Agilist, showcasing a strong foundation in agile methodologies.
Let’s Collaborate!
Whether you need a cutting-edge application, a data-driven solution, or a complete digital transformation, I bring the skills, passion, and dedication to make your project a success. Let's discuss your ideas and turn them into a reality.
Invite me to your job, and let's start building something extraordinary today! 🚀
ExpressJS
WordPress
CSS 3
HTML5
React
Node.js
JavaScript
TypeScript
Bootstrap
Web Development
Python
NestJS
Full-Stack Development
Angular
Tailwind CSS
Learnmore M.
Sandton, South Africa
$25/hr
5.0
2 jobs
* I am an IT Professional with more than 18 years of experience in the areas of Information and
Communication Technology, Presales Solution Architecture, Software Oriented Architecture, ERP
Systems (SAP Business One), Cloud Architecture & support, Crystal Reports, B1i Intelligence and
Crystal Dashboard Design both from a client perspective and consultant aspect. I am a seasoned
Solutions Architect with expertise in Networking, Systems Administration, Technology planning,
Project Management, Business Continuity and Disaster Recovery Planning, IT Service Management,
Information Systems Security, Infrastructure Management, and Service Desk Management, IP
Telephony.
* Versatile, hardworking, results-oriented professional with proven ability to build strong
relationships with customers and vendors.
Software Testing
Testing
SAP HANA
User Acceptance Testing
Business Analysis
Enterprise Resource Planning
SAP BusinessOne
Architecture
Agile Software Development
How it works
Post a job for freePost a job
Tell us what you need. Create your own job post or generate one with AI then filter talent matches.
Hire top talent fast
Consult, interview, and hire quickly, so you can meet the freelancers you're excited about.
Collaborate easily
Use Upwork to chat or video call, share files, and track project progress right from the app.
Payment simplified
Manage payments in one place with flexible billing options. Only pay for approved work, hourly or by milestone.
Don't just take our word for it
“Upwork provides an umbrella-level of security. I can see a talent’s work history and ratings. I can hold payments in escrow. I can communicate through Upwork Messages instead of working through my email address.”
KD
Kim Darling
Emerald Tiger
“Upwork is the best platform to hire skilled professionals when we're not looking for a full-time employee. All the companies in our portfolio use Upwork to find talent across a wide range of fields.”
DM
David Merry
Kinetic Investments
“Our very specific requirements can be a challenge—With Upwork, we’re able to access a bigger community to ensure the success of our projects.”
KK
Katja Krohn
Summa Linguae
How do I hire a Load Testing Engineer in South Africa on Upwork?
You can hire a Load Testing Engineer in South Africa on Upwork in four simple steps:
Create a job post tailored to your Load Testing Engineer project scope. We'll walk you through the process step by step.
Browse top Load Testing Engineer talent on Upwork and invite them to your project.
Once the proposals start flowing in, create a shortlist of top Load Testing Engineer profiles and interview.
Hire the right Load Testing Engineer for your project from Upwork, the world's largest work marketplace.
At Upwork, we believe talent staffing should be easy.
How much does it cost to hire a Load Testing Engineer?
Rates charged by Load Testing Engineers on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.
Why hire a Load Testing Engineer in South Africa on Upwork?
As the world's work marketplace, we connect highly-skilled freelance Load Testing Engineers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream Load Testing Engineer team you need to succeed.
Can I hire a Load Testing Engineer in South Africa within 24 hours on Upwork?
Depending on availability and the quality of your job post, it's entirely possible to sign up for Upwork and receive Load Testing Engineer proposals within 24 hours of posting a job description.
Find more freelancers
Top cities for Load Testing Engineers in South Africa