Senior Software Engineer, Backend

Front

Senior Software Engineer building and maintaining backend frameworks for B2B operations platform. Collaborating with engineering teams to enhance system reliability and performance.

Posted 4/22/2026full-timeSan Francisco • California • 🇺🇸 United StatesSenior💰 $177,000 - $203,700 per yearWebsite

Tech Stack

Tools & technologies

Distributed SystemsJavaScriptTypeScript

About the role

Key responsibilities & impact

Building and maintaining shared backend frameworks, libraries, and internal tooling used by engineering teams across Front
Designing and implementing systems with a strong emphasis on reliability, observability, and performance — including our task queue, batch job framework, database ORM, and real-time event infrastructure
Owning and evolving our CI/CD systems, ensuring fast, reliable, and safe delivery pipelines
Collaborating closely with other engineering teams to understand their pain points, establish shared patterns, and drive adoption of new frameworks
Influencing Front's backend architecture and the engineering-wide standards that flow from it
Navigating ambiguity, defining the right problems to solve, and delivering solutions of significant complexity

Requirements

What you’ll need

We are looking for backend JavaScript/TypeScript engineers — this role is not focused on frontend development.
Experience building frameworks, libraries, and/or developer-facing internal tools
Experience building distributed systems with an emphasis on reliability, observability, and performance
Exceptional software design fundamentals and a track record of delivering high-complexity projects
Clear, structured thinking and strong communication skills — your stakeholders are other engineers, so the ability to explain technical tradeoffs matters
Comfort navigating ambiguity: you can drive clarity and execute without a fully-defined roadmap
Ability to thrive in a dynamic, fast-paced, collaborative, low-ego, and high-growth environment

Benefits

Comp & perks

Competitive salary
Equity (we are post-series D & backed by some of the best VCs in the US)
Private health insurance, including plan options at no cost to employees
Paid parental leave
Flexible time off policy
Flexibility to work from home Monday and Friday, unless posted as a fully remote role
Mental health support with Workplace Options
Family planning support with Maven
$100 per month Lifestyle Stipend to spend on fitness, health and wellness, and other activities
Wellness Days - Fronteers get an additional day off on months with no holidays
Winter Break - Our offices are closed from Christmas to New Year's Day!

ATS Keywords

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Hard Skills & Tools

JavaScriptTypeScriptbackend frameworkslibrariesinternal toolingdistributed systemsCI/CD systemsdatabase ORMreal-time event infrastructuresoftware design fundamentals

Soft Skills

clear thinkingstructured thinkingstrong communication skillsnavigating ambiguityproblem-solvingcollaborationadaptabilityexecuting without a roadmapinfluencing architecturedriving clarity