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Abduselam Tesfaye

@abduselamtesfaye

Full-Stack Developer at Upwork building end-to-end applications and AI evaluation work for frontier coding agents.

Ethiopia
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At Upwork, I deliver end-to-end web applications for international clients, from requirements gathering through development, testing, and deployment. I work with React, Node.js/Express, MongoDB, and PostgreSQL.

At Eris / Shipd, I design and build ML benchmark challenges, then solve them and verify the reference solutions, data quality, and scoring criteria. At AfterQuery, I author software-engineering evaluation tasks and RL environments for benchmarking frontier AI coding agents.

At Nile Technology Solutions, I built full-stack applications and backend automation workflows, and integrated chatbot systems with RAG components. I also built SafeNet Adama, a crime-intelligence platform with web and mobile applications, incident reporting, and machine-learning services for crime hotspot detection and incident classification.

Experience

Work history, roles, and key accomplishments

ES
Current

Machine Learning Expert

Eris / Shipd

Jun 2026 - Present (5 months)

Design and build ML benchmark challenges on Shipd (Datacurve) structured like Kaggle competitions. Solve competition tasks end to end, producing reference solutions and verifying problem difficulty, data quality, and scoring criteria.

RE

AI Code Review & Annotation Specialist

Revelo

Jan 2025 - Dec 2026 (1 year 11 months)

Reviewed and evaluated AI-generated code for correctness, efficiency, security, and production-readiness. Provided human feedback for LLM post-training (RLHF/SFT/DPO) and reproduced repository issues using TDD.

NS

AI Engineer & Full-Stack Developer

Nile Technology Solutions

Jan 2024 - Dec 2025 (1 year 11 months)

Designed and built full-stack applications on MERN and FastAPI with REST APIs, MongoDB/PostgreSQL, and role-based access control. Supported AI initiatives including data preparation, automation workflows, and dataset QA.

NS

AI & Automation Engineer

Nile Technology Solutions

Jan 2023 - Dec 2024 (1 year 11 months)

Developed backend services and automation workflows using FastAPI and PostgreSQL. Built and integrated chatbot systems for web and Telegram, including RAG components.

IS

Front-End Developer Intern

IE Network Solutions

Jan 2023 - Dec 2023 (11 months)

Built and enhanced UI features for a job recruitment system using React, JavaScript, HTML, and CSS.

Education

Degrees, certifications, and relevant coursework

Adama Science and Technology University logoAU

Adama Science and Technology University

Bachelor of Science, Software Engineering

Grade: 3.6/4.0

Graduated with a Bachelor of Science in Software Engineering, achieving a CGPA of 3.6 out of 4.0 and a major GPA of 3.75.

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