Freelance Software Developer (Ruby) / Quality Assurance (AI Trainer)

Bachelor's or Master's Degree in Software Development, Computer Science, or related fields At least 3 years of professional experience Hands-on experience with Ruby testing frameworks (RSpec, Minitest, Capybara) Experience with automation tools Advanced English proficiency (C1) or above Proficient with code review, quality analysis, and identifying/fixing code smells, anti-patterns, and test gaps in Ruby codebases Experience with test integration in CI/CD environments (GitHub Actions, GitLab CI, Jenkins, or CircleCI) Experience using, integrating, or tutoring others with AI/ML or LLM-powered testing/coding solutions in Ruby projects Familiarity with containerization technologies (Docker) Familiarity with automated deployment and scripting within Ruby environments Strong skills in defect documentation, profiling, and debugging Ruby applications Experience generating and maintaining high-quality documentation for tests, bugs, and technical debt Ready to learn new methods, able to switch between tasks and topics quickly Able to sometimes work with challenging, complex guidelines

Code generation and code review Prompt evaluation and complex data annotation Training and evaluation of large language models Benchmarking and agent-based code execution in sandboxed environments Working across multiple programming languages Adapting guidelines for new domains and use cases Following project-specific rubrics and requirements Collaborating with project leads, solution engineers, and supply managers