Frontend Platform Engineer — Core Architecture & APIs

Neura Market; Foster City, Northern (CA, KY); Hybrid; USD 150,000 - 210,000; Full time

Benefits offered by this job

Salary & Equity

401(k) Match

Health Insurance

Disability Insurance

Parental Leave

Flexible Time Off

Commuter Benefits

Wellness Stipend

Autonomous Work Environment

Office Setup Reimbursement

Team Gatherings

Office Amenities

Job summary

Replit is seeking a Product Engineer focusing on the frontend platform in Foster City, CA. You will own the frontend architecture behind core product experiences, the API and data layer, testing infrastructure, and client performance. You’ll collaborate with engineering, product, and design to ship fast and reliably.

The role involves working with the DevEx team on build tooling and the design system to plan, ship, and operate frontend foundations for high-traffic workloads.

Qualifications

• 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).

Responsibilities

• Design platform APIs and shared primitives 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

Skills

Frontend architecture

API/data layer

Performance monitoring

Architecture tradeoffs

TypeScript & React

Next.js & Node.js

Job description

Replit is seeking a Product Engineer focusing on the frontend platform in Foster City, CA. You will own the frontend architecture behind core product experiences, the API and data layer, testing infrastructure, and client performance. You’ll collaborate with engineering, product, and design to ship fast and reliably.

The role involves working with the DevEx team on build tooling and the design system to plan, ship, and operate frontend foundations for high-traffic workloads.