Product Engineer, Product Platform (Frontend)

Replit
Foster City, CA

Who this role is best for

Best suited to mid-level frontend engineers who enjoy building foundational architecture and improving developer experience, working in-office three days a week in Foster City.

Best fit for

  • Engineers who thrive on making other teams more productive through platform work.
    — “If you like making other engineers faster, you will fit in here
  • Candidates comfortable with cross-cutting changes and migration strategies.
    — “Roll out cross-cutting changes safely with codemods, migration paths, and staged rollouts
  • Developers experienced in modern web stacks with production-scale challenges.
    — “Comfortable in modern web stacks (TypeScript, React, Next.js, Node.js)

Things to consider

  • Requires three in-office days per week in Foster City.
    — “The role has an in-office requirement of Monday, Wednesday, and Friday
  • Expect to work on latency-sensitive, high-traffic frontend systems.
    — “frontend foundations used across high-traffic, latency-sensitive workloads

How to stand out

  • Highlight specific examples of improving frontend performance metrics.
    — “Measured and improved client performance with instrumentation and monitoring
  • Showcase experience designing APIs adopted by multiple teams.
    — “Design platform APIs and shared primitives that other teams adopt
  • Demonstrate your approach to architecture tradeoff decisions.
    — “Made and explained architecture tradeoffs across UX, correctness, delivery speed, and maintainability
Pace · Fast PacedCollaboration · HighAutonomy · MediumDecision Impact · TeamLevel · Senior

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • Design platform APIs and shared primitives
  • Profile and instrument real user journeys
  • Roll out cross-cutting changes safely
  • Set technical direction in design and architecture reviews
  • Work directly with product teams to turn their friction into reusable platform improvements
Typical background
Experience in frontend developmentExperience with modern web stacks

Skills & requirements

Required

Experience Shipping And Operating User-facing Software In ProductionDesigned Frontend Architecture Other Teams Build OnBuilt And Operated An Api/data LayerMeasured And Improved Client Performance With Instrumentation And MonitoringComfortable In Modern Web Stacks (typescript, React, Next.js, Node.js)

Preferred

Experience With Cross-cutting ChangesExperience With Codemods And Migration PathsExperience With Staged Rollouts

Stack & domain

TypeScriptReactNext.jsNode.js

About the role

Original posting from Replit via Ashby

Replit is the agentic software creation platform that enables anyone to build applications using natural language. With millions of users worldwide, Replit is democratizing software development by removing traditional barriers to application creation.

Replit is a software creation platform that enables anyone to build applications using natural language. With millions of users worldwide, Replit helps more people build and ship software.

ABOUT THE TEAM

Product Platform builds and owns the shared foundations the rest of Replit is built on: backend infrastructure, connectors, product primitives, and the frontend platform. When these foundations are solid, every other team moves faster.

This role goes deep on the frontend platform: the architecture and platform layer behind every core product surface.

The work is high-leverage and horizontal, and gives you exposure across the whole of engineering. We are a small, collaborative team that values curiosity and clear thinking over pedigree, and we care more about how you reason and build than the route you took to get here. If you like making other engineers faster, you will fit in here.

ABOUT THE ROLE

As a Product Engineer focusing on the frontend platform, you will own the frontend architecture behind core product experiences: application frameworks, the API and data layer, testing infrastructure, and client performance. The goal is simple: product teams ship quickly and reliably on what you build.

The team’s work is guided by a few simple questions:

  • Is our core frontend architecture (frameworks, state, routing, SSR/CSR) sound, consistent, and easy to build on?
  • Is our API and data layer reliable and ergonomic, with clear contracts, sensible error handling, and effective caching?
  • Are user-facing surfaces fast and well-instrumented, with testing infrastructure that keeps them safe to change?
  • Is the codebase easy to navigate, change, and extend, including for AI coding agents?

You’ll partner closely with engineering, product, and design. You’ll also work with our DevEx team on build tooling and CI/CD, and our Design Engineering team on the design system, to plan, ship, and operate the frontend foundations used across high-traffic, latency-sensitive workloads.

WHAT YOU’LL DO

  • Design platform APIs and shared primitives (not just components) with clear contracts, documentation, and upgrade paths that other teams adopt
  • Profile and instrument real user journeys, then ship the changes that move the numbers
  • Roll out cross-cutting changes safely with codemods, migration paths, and staged rollouts
  • Set technical direction in design and architecture reviews, and document the decisions and operational expectations behind them
  • Work directly with product teams to turn their friction into reusable platform improvements

REQUIRED SKILLS AND EXPERIENCE

  • Experience shipping and operating user-facing software in production
  • Designed frontend architecture other teams build on (frameworks, state, routing, SSR/CSR, migrations)
  • Built and operated an API/data layer (REST/GraphQL, error handling, caching)
  • Measured and improved client performance with instrumentation and monitoring
  • Made and explained architecture tradeoffs across UX, correctness, delivery speed, and maintainability
  • Comfortable in modern web stacks (TypeScript, React, Next.js, Node.js)

If you’re excited about this role but don’t meet every requirement, we still encourage you to apply.

This is a full-time role that can be held from our Foster City, CA office. The role has an in-office requirement of Monday, Wednesday, and Friday.

Full-Time Employee Benefits Include:

💰 Competitive Salary & Equity

💹 401(k) Program with a 4% match (US Only)

⚕️ Health, Dental, Vision and Life Insurance

🩼 Short Term and Long Term Disability

🚼 Paid Parental, Medical, Caregiver Leave

🏝 Flexible Time Off (FTO) + Holidays

🚗 Commuter Benefits (In-Office Only)

📱 Monthly Wellness Stipend

🧑‍💻 Autonomous Work Environment

🖥 In Office Set-Up Reimbursement (In-Office Only)

🚀 Quarterly Team Gatherings

☕ In Office Amenities (In-Office Only)

Want to learn more about what we are up to?

  • Meet the Replit Agent https://www.youtube.com/watch?v=IYiVPrxY8-Y
  • Replit: Make an app for that https://www.youtube.com/watch?v=4zd9hzngFwY
  • Replit Blog https://blog.replit.com/
  • Amjad TED Talk https://youtu.be/kCudFI4tcpg?si=l4ViCejV_f2RZkDi

Interviewing + Culture at Replit

  • Operating Principles https://blog.replit.com/operating-principles
  • Reasons not to work at Replit https://blog.replit.com/reasons-not-to-join-replit

To achieve our mission of making programming more accessible around the world, we need our team to be representative of the world. We welcome your unique perspective and experiences in shaping this product. We encourage people from all kinds of backgrounds to apply, including and especially candidates from underrepresented and non-traditional backgrounds.

Source: Replit careers (Ashby)

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