Demera Asfaw

I’m a versatile freelancer with experience across AI training, data labeling, technical problem-solving, electronics, and digital project assistance. My background includes both hands-on engineering work and digital support services, allowing me to deliver high-quality results in multiple areas.

I have worked on AI development and data training projects, including reviewing, labeling, and analyzing large datasets to improve model performance and accuracy. My tasks included evaluating outputs, correcting model behavior, identifying errors, and ensuring data quality for machine learning systems.

I also bring strong experience in technical projects such as microcontroller programming (MSP430, Arduino), MATLAB and Simulink modeling, signal processing, and circuit design. I have completed a wide range of engineering tasks including inverter simulations, control system analysis, and debugging embedded systems.

Beyond engineering and AI, I have skills in digital assistance, research, technical writing, documentation, and workflow organization. I can help clients structure tasks clearly, solve technical issues, and complete detailed work efficiently.

Key Projects I’ve Worked On:

• Outlier AI training project – assisted in training and evaluating AI systems through data labeling, content review, quality checks, and model improvement.
• Circuit and power electronics projects – SPWM inverter modeling, harmonic and THD analysis, and MATLAB/Simulink simulations.
• Embedded systems projects – MSP430 Simon Game, timer-driven systems, interrupt logic, and low-power microcontroller development using C and Assembly.
• Technical documentation and reports – creating clear engineering explanations, organized documents, diagrams, and structured project summaries.
• Digital and virtual support – research tasks, data organization, content review, workflow assistance, and technical support.
• Signal and control system work – filter design, noise reduction, FFT analysis, and transfer function evaluations.
• Troubleshooting and analysis – identifying and solving issues in code, circuits, simulations, and AI outputs.

I am reliable, fast, detail-oriented, and easy to work with. Whether the project involves AI data tasks, technical assistance, engineering work, documentation, or digital support, I provide accurate results with strong communication and a focus on quality.