Xavier Stevens

I’m a Software Engineer with extensive experience building high-performance, scalable web applications and leading features from prototype to production. I focus on rigorous testing and documentation while continuously improving scalability, efficiency, and user experience.

At ESC Spectrum Corporation, I’ve played a key role in developing new SaaS features and fixing bugs using Next.js, FastAPI, and PostgreSQL. I implemented CI/CD pipelines (GitLab) for automated deployments on AWS using Docker and Kubernetes, and I helped roll out a search engine with positive stakeholder feedback.

I also build modern, intelligent workflows—implementing an AI document parsing system using instructor.js for LLM orchestration and comparing top-tier and mini models across providers (GPT-4, Claude Opus/Haiku). Beyond that, I’ve designed experimentation and A/B testing, tracked and resolved production issues with Jira and Cursor, and supported cross-functional teams to deliver critical features.

Earlier, I designed and developed prototypes at MotoMummy and contributed to production work at Health Direct, spanning REST API development, frontend engineering, and backend services. I’ve worked with Ruby on Rails, React/Next.js, and Flask, built automated end-to-end testing with Playwright, and used containerized deployments with Docker and Kubernetes to deliver reliable experiences.