Senior Software Engineer

💼 Full-time💰 $200,700–$200,700🗓 2026-07-16 → 2026-09-27

Core

Building and evolving frontend infrastructure, developer tooling, and CI/CD pipelines to enable fast, confident shipping of product features.

Role type

Senior Staff Frontend Infrastructure Engineer

Builds

React/TypeScript/Vite tooling, testing platforms, CI/CD pipelines, and observability systems

Domain

Fintech / SaaS

Deliverable

production ML models | product features | infrastructure

Required skills

React, TypeScript, Vite, CI/CD pipeline design, testing platform architecture, static analysis, LLM coding tools integration, observability metrics, cross-team project leadership

Preferred skills

Experience upstreaming fixes to build systems, deep knowledge of web platform internals, consensus-building across organizations

Technologies

React, TypeScript, Vite, CI/CD, static analysis tools, LLM coding tools, testing frameworks

Responsibilities

Evolve React, TypeScript, and Vite infrastructure to support ambitious product work; build automation and local tools to reduce engineering friction; optimize testing platforms for fast feedback loops; stabilize and accelerate CI/CD pipelines; unify technical and sentiment metrics for observability; foster frontend enthusiasm through tooling and community representation

Seniority

Senior, hands-on IC with strategic impact

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About Mercury

Mercury is on a mission to defy those expectations. We're a financial technology company that helps startups spend less time banking* and more time building. We believe that the key to our success revolves around thoughtful design — and we hold the craft of that design to an exceptionally high standard. We're looking for a Staff Brand Designer who sets that bar: someone whose eye is so precise, and whose execution is so considered, that the work around them gets better just by virtue of their presence.