• Provide technical leadership for backend application development; • Define and evolve system and API architecture; • Design, standardize, and govern REST APIs using API Platform; • Plan and execute multi-environment migration strategies; • Ensure application scalability, security, and performance; • Conduct technical code reviews and approve critical pull requests; • Define and maintain CI/CD and versioning standards; • Oversee deployments and containerized environments; • Lead resolution of complex issues and critical incidents; • Mentor mid-level and junior developers; • Support technical decisions in collaboration with Product Owners, analysts, and stakeholders; • Serve as a technical reference and advocate for best practices.

• Design, build, and maintain scalable backend services in Ruby, with occasional contributions in Python and Typescript • Develop and enhance front-end functionality using modern JavaScript frameworks and Typescript • Lead and contribute to architectural and design discussions that improve long-term system maintainability • Ship large, complex features from concept through deployment with high quality and strong testing practices • Participate actively in Scrum ceremonies including daily standups, sprint planning, and retrospectives • Collaborate cross-functionally with Product, QA, PMO, and other engineering teams to align technical solutions with business goals • Mentor junior engineers through pair programming, code reviews, and technical guidance • Advocate for thoughtful technical investments and clearly articulate trade-offs to stakeholders • Contribute to improving development workflows, tooling, and engineering best practices

• Execute complex backend software engineering projects focusing on APIs, data processing, infrastructure and platform. • Drive the execution of key engineering initiatives. • Fostering a culture of technical excellence. • Be self-motivated, proactive, and able to work independently in a fast-paced environment. • Author technical proposals to document and align teams on the design of complex projects. • Troubleshoot and resolve production issues, minimizing downtime and impact on business operations.

• Help train large-language models (LLMs) to write production-grade code • Compare & rank multiple code snippets • Repair & refactor AI-generated code • Inject feedback into the RLHF pipeline