Senior Software Engineer - Frontend Developer Experience (Fintech)

TL;DR

Senior Software Engineer - Frontend Developer Experience (Fintech): Building and evolving frontend foundations and infrastructure for a rapidly growing fintech platform with an accent on developer experience, build systems, and CI/CD pipelines. Focus on optimizing engineering velocity through automation, LLM tooling, and high-confidence testing frameworks.

Location: Remote within the United States or Canada, or hybrid in San Francisco, New York, or Portland

Salary: $200,700 - $250,900 (US) / CAD $189,700 - $237,100 (Canada)

Company

Mercury is a fintech company providing advanced banking services for businesses via partners.

What you will do

• Evolve React, TypeScript, and Vite infrastructure to enable teams to ship product work with speed and confidence.
• Implement automation using static analysis and LLM coding tools to reduce developer friction.
• Optimize the testing platform, including unit tests and visual snapshots, for faster feedback loops.
• Ensure CI/CD pipelines are stable, ergonomic, and fast to support high-frequency deployments.
• Develop observability for systems and organization by unifying technical and sentiment metrics.
• Create "golden paths" to foster enthusiasm and efficiency in frontend development across the company.

Requirements

• 6-8+ years of software development experience with a strong focus on the frontend.
• Deep expertise with React and TypeScript.
• Experience leading complex, cross-functional engineering projects with multi-stage rollouts.
• Proven track record of maintaining internal libraries or platform tooling used by other engineers.
• Thorough understanding of build systems, CI/CD, web hosting, and testing workflows.
• Must be based in the United States or Canada.

Culture & Benefits

• Competitive base salary and equity (stock options).
• Total rewards package aligned with top SaaS and fintech industry standards.
• Strong commitment to diversity, belonging, and equal employment opportunity.
• Provision of reasonable accommodations throughout the recruitment process.