Progress Lefsifi
Cape Town | LinkedIn | - |-
Software Developer with hands-on experience in Agile methodologies, software testing, software development, and
AI training. Skilled in ReactJS, NodeJS, SQL, and Agile Practices. Adept in refining AI models, optimizing code,
and improving user satisfaction through comprehensive testing. I am passionate about using my technical skills and
problem-solving abilities to contribute to innovative projects and impactful results.
EDUCATION
Cape Peninsula University of Technology
Cape Town
Master of Science in Agriculture
January 2023 - November 2024(Expected)
● Agribusiness Management
Project codeX
Cape Town
Full-Stack Agile Web Developer Program
January 2023 - December 2023
● Web Development, Agile Methodologies, Backend and Frontend Development, Test-Driven Development,
Authentication and Deployment, Databases, and Cloud solutions.
University of Venda
Thohoyandou
Bachelor(honours) of Science in Agriculture
January 2018 - June 2022
● Agribusiness Management
WORK EXPERIENCE
Outlier AI
Remote
Software developer for AI Training
September 2024 - Present
● Developed and Refined AI models using ReactJS, NodeJS, Python, BigQuery, SQL, and JavaScript, ensuring
alignment with user prompts and functional requirements.
● Evaluated AI-generated code, fixing and validating responses to ensure they met industry standards and
expectations.
● Designed coding prompts and scenarios to improve AI response, thereby enhancing the accuracy and
performance of the models.
● Created and optimized SQL queries on BigQuery, aligning them with user prompts for accurate data retrieval.
Invisible Technologies
Remote
Advanced AI Data Trainer
September 2023 - December 2024
● Improved AI Outputs: Enhanced AI-generated responses by providing detailed feedback and analysis of SFT
and RLHF models. Crafted creative user and bot conversations, and annotated AI responses to ensure safety,
maintaining a quality score of 90%+ and resulting in a 15% increase in accuracy.
Additional Tasks Performed:
● Developed and integrated AI training processes with services like Slack, GPT, and Google Sheets, streamlining
operations and reducing manual effort by 20%.
● Identified and reported bugs in AI training processes using Jira, contributing to a 25% improvement in workflow
efficiency.
● Actively participated in Sprint Reviews, providing valuable feedback on new features for the company app, and
helping to refine and enhance product functionality.
Utest
Remote
Freelance Software Tester
May 2022 – August 2023
● Conducted comprehensive testing for web and mobile applications, identifying and reporting critical bugs,
resulting in a 30% improvement in user satisfaction.
● Followed detailed instructions and communicated effectively with clients to address issues and enhance
software quality.
SKILLS
●
●
●
Technical Skills: JavaScript, ReactJS, NodeJS, SQL, Git & GitHub, Test Case Development, Bug
Reporting, Functional Testing, Automated Testing and API
Agile Practices: Scrum, Kanban, Daily Stand-ups, Sprint Planning, Sprint Review, User Stories, Backlog
Management and TDD.
Soft Skills: Communication, Problem-solving, Collaboration, Adaptability and Detail-oriented
