Job Description
Join to apply for the Senior Software Engineer (Remote Mexico) role at Braintrust .
Job Description
About The TeamThe Frontend Infrastructure team, part of the User Experience Foundations (UXF) group, is an eight-person engineering team supported by an engineering manager and product manager. The team builds and maintains the frameworks, tools, and systems that make it faster and easier for Etsy’s engineers and designers to create high-quality, performant user experiences across the site.
About The RoleThe contractor will support the Frontend Infrastructure team to enhance Etsy’s frontend development ecosystem. This work will focus on improving frameworks, build systems, and tooling that empower engineers and designers to create performant, reliable, and accessible user experiences.
Key Responsibilities- Designing, implementing, and improving core frontend infrastructure, including Etsy’s server‑side rendered React stack and modern JavaScript build pipelines (e.g., Vite).
- Developing and maintaining internal tools, automation, and shared libraries that improve engineering efficiency, code quality, and developer experience.
- Participating in architecture discussions, code reviews, and design planning to ensure technical consistency and scalability across the frontend ecosystem.
- Contributing to documentation and internal communications that support adoption, onboarding, and maintenance of shared frontend tools and systems.
- Supporting initiatives that make Etsy’s developer experience more inclusive and accessible for a global engineering community.
The contractor’s work will primarily use TypeScript/JavaScript and PHP, with emphasis on modern build tooling, frontend performance optimization, and cloud-based infrastructure.
Requirements Must‑Haves- Strong proficiency in JavaScript and TypeScript, with experience building and maintaining modern frontend systems.
- Solid understanding of frontend architecture, build systems, and performance optimization for large‑scale web applications.
- Demonstrated experience improving developer tooling, CI/CD pipelines, or frontend infrastructure systems.
- Familiarity with PHP and server‑side rendered React applications.
- Experience with modern bundlers and build tools (e.g., Vite, Webpack, Rollup).
- Understanding of cloud environments and observability tools.
- Background working with design systems, shared component libraries, or developer experience platforms.
- Strong communication and collaboration skills, with a focus on inclusive and cross‑functional teamwork.
Any specific time zone requirements/working hours?
- Etsy PrimeTime - 11am–2pm EST
Is there a possibility for an extension and/or permanent role in the future?
- May extend or convert, depending on the needs of the team, budget availability, and contractor performance.
- 30‑min manager + product manager screen, followed by a 30‑60 min technical assessment (e.g. live coding session or technical deep dive) with 2 members of the hiring team.
Mid‑Senior level
Employment TypeFull‑time
Job FunctionEngineering and Information Technology
IndustriesSoftware Development
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