Senior Software Engineer

Full-timeCA$201k–CA$251k2026-10-20 → 2026-11-10

Core

Evolve frontend foundations, infrastructure, and tooling to enable teams to ship ambitious product work with speed and confidence.

Role type

Senior Staff Frontend Platform Engineer

Builds

React, TypeScript, and Vite infrastructure; automation tools; testing platforms; CI/CD pipelines; observability systems

Domain

Fintech / SaaS

Required skills

React, TypeScript, Vite, build systems, CI/CD, testing frameworks, static analysis, LLM coding tools, observability, developer tooling

Preferred skills

leading cross-functional projects, multi-stage rollouts, consensus-building, internal library maintenance, web platform internals

Technologies

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

Responsibilities

Strengthen frontend foundations and evolve infrastructure to support ambitious product work; optimize testing platforms for fast feedback loops; stabilize and optimize CI/CD pipelines; build observability systems unifying technical and sentiment metrics; foster enthusiasm for frontend work through tooling and representation

Seniority

Senior, hands-on IC with leadership responsibilities

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.