Senior Software Engineer - Frontend Developer Experience

Mercury•San Francisco, NY

About The Position

As the company expands, we are evolving the frontend foundations that support our product. We are looking for an engineer to help build the necessary infrastructure to support frontend work at Mercury. The goal is to make our engineers as excited about the frontend as our customers are about our product. This role involves strengthening frontend foundations, evolving React, TypeScript, and Vite infrastructure, and helping engineers move efficiently with automation. It also includes optimizing the testing platform for fast feedback loops and high confidence, making CI/CD pipelines stable, ergonomic, and fast, and making systems and organization observable by unifying technical and sentiment metrics. The role also requires fostering enthusiasm about frontend work by making the good path the easy path and representing our work in larger venues.

Requirements

6-8+ years of software development experience, with a strong focus on the frontend and deep experience with React and Typescript.
Experience leading complex engineering projects, such as projects that cut across multiple teams and functions, have multi-stage rollouts, or require research and consensus-building before action.
Confident communicator, adept at communicating across organization boundaries, and driving discussions to productive ends.
Maintained internal libraries or platform tooling that other engineers depend on.
Prioritizes being helpful, taking initiative to make other developers' lives easier.
Thorough understanding of modern frontend developer tooling and workflows, including build systems, CI/CD, web hosting, and testing.
Dives into the gnarly side of the web platform— when it matters, happy to dig into Vite internals, upstream a fix, or bring a broken deploy pipeline back to life.
Balances practicality with ideals, pushing the team to reach an ambitious North Star while charting a course there that matches our reality.

Responsibilities

Strengthen the frontend foundations every Mercury engineer builds on.
Evolve our React, TypeScript, and Vite infrastructure to support teams in shipping ambitious product work with speed and confidence.
Help engineers move efficiently with automation.
Use static analysis, local tools, and LLM coding tools to help engineers quickly resolve the schlep so they can focus on what matters.
Optimize our testing platform for fast feedback loops and high confidence.
Provide the QA tools product teams need to move both quickly and safely.
Make our CI/CD pipelines stable, ergonomic, and fast.
Keep the pipeline humming so Mercury’s engineers stay in flow and customers see fixes faster.
Make our systems and organization observable.
Drive decisions by unifying technical metrics from our tools with sentiment metrics from developer surveys.
Build the observability that lets the team move with confidence.
Foster enthusiasm about frontend work at Mercury by making the good path the easy path, and by representing our work in larger venues.