Software Engineer, React Focus

BAE Systems•Nashua, NH

4d•$118,095 - $200,762

About The Position

You'll set technical direction for a TypeScript frontend platform serving a large data-intensive engineering program. This is a hands-on role: you'll write code, own architecture, and raise the ceiling for a team of 6 engineers. Expect to work directly with backend, product, and end users.

Requirements

6+ years building production software; 4+ in TypeScript/JavaScript and Node
Deep React experience, including performance profiling and state/data-fetching architecture at scale
Demonstrated ownership of system-level design decisions and their consequences
Strong written communication: design docs, technical proposals
Track record of mentoring and elevating other engineers
Comfort operating with ambiguity and defining the problem
Ability to obtain and maintain a DoD Secret clearance (U.S. citizen)

Nice To Haves

gRPC / protobuf, especially large-payload or streaming scenarios
Turborepo, Nx, or comparable monorepo tooling
API design (REST, gRPC, BFF patterns) and versioning strategy
Agentic / LLM-assisted development workflows and tooling
Playwright or comparable E2E frameworks; test strategy across the pyramid
CI/CD pipeline design and build optimization
Data visualization at scale (AG Charts, D3, or similar)
Storybook and component library ownership
Wireframing and UX collaboration; comfort sketching a flow before building it
Defense, aerospace, or other regulated-environment experience

Responsibilities

Co-own architecture for a React/TypeScript/Next.js application backed by gRPC/protobuf services
Drive design of data-access layers (BFF/API boundaries, caching, pagination, streaming) where payload size and memory pressure are real constraints
Set and enforce standards across a Turborepo monorepo: shared packages, versioning, build/CI performance, dependency hygiene
Lead technical design reviews; write the design docs and white papers that anchor them
Diagnose hard problems: memory exhaustion, render performance, pipeline issues
Mentor engineers across levels and enable the team to work faster
Work directly with customers and stakeholders to shape requirements, then decompose them into scoped, estimable work