Senior Frontend Engineer AI Product

The Opportunity

If youve worked alongside hardware teams you know the damage that results from a missed change request or critical context that was never relayed to the right person. Reflow exists to close that gap. Were building the first AI-powered platform purpose-built for hardware product development one that listens across the tools teams already use maintains a structured picture of every program and proactively coordinates across disciplines when things inevitably change.

This is a ground-floor opportunity for a hands-on frontend engineer to shape the user experience of a high-potential product with the support of a parent company leading innovation in engineering and manufacturing.

Who Were Looking For

Were seeking a frontend engineer who cares deeply about building interfaces that are fast intuitive and delightful. The ideal candidate has shipped production React applications and has strong opinions on component architecture and design systems. You should already be using AI coding tools like Cursor Copilot or Claude to accelerate your work with excitement about building the product that finally replaces the spreadsheets and status meetings that hardware teams have been stuck with for decades.

This senior engineer will work alongside our engineering team and head of product to build the interfaces through which users manage structured engineering artifacts (requirements project plans dependencies) interact with ambient AI agents and get real-time transparency into project health across disciplines. The role is hands-on - you will be coding daily while contributing to frontend architecture decisions and helping grow the design system as we scale.

What Youll Do

Your day-to-day responsibilities will include:

Building production-grade React applications with TypeScript

Developing and maintaining a shared component library

Building rich interfaces for structured engineering data: requirements with traceability phase/gate tracking dependency graphs task boards with discipline tags and version-controlled project plans

Building interfaces for AI agent interactions including streaming chat proactive coordination alerts and AI-generated status summaries and deliverables (proposals SOWs reports)

Implementing portfolio-level dashboards for engineering leaders and executives showing cross-project cost schedule and risk

Writing well-tested code with unit and end-to-end tests

Collaborating with backend engineers on API integration and client SDK usage

Contributing to frontend architecture decisions code reviews and engineering best practices

Technical Requirements

Must Have:

5 years building production web applications with 3 years focused on React

Demonstrated proficiency using AI coding tools (Cursor Copilot Claude etc.) to accelerate development

Expert-level expertise with React TypeScript and modern JavaScript

Strong experience with component-driven development design systems and tools like Storybook

Proficiency with CSS frameworks (Tailwind CSS preferred) and responsive design

Experience with modern build tools (Vite esbuild or similar)

Understanding of API integration patterns (REST OpenAPI generated clients)

Ability to balance rapid iteration with maintainable well-tested code

Highly Valuable:

Have worked in early-stage 0 to 1 startup environments

Familiarity with hardware development engineering workflows or project management processes

Experience building UIs for AI/LLM-powered features (streaming responses chat interfaces structured AI output)

Familiarity with headless component libraries (Base UI Radix Headless UI)

Background in data visualization or dashboard-heavy applications

Understanding of authentication/authorization patterns (OIDC JWT)

Experience with end-to-end testing frameworks (Playwright Cypress)

Background in B2B SaaS platforms project management tools or technical collaboration products

What We Offer

Real Impact: The opportunity to build purpose-built tooling for an entire industry that has never had it

Customer Access: Direct exposure to hundreds of real hardware projects annually through Re:Builds engineering and manufacturing companies

Technical Growth: Hands-on work with cutting-edge AI technologies solving novel technical challenges

Autonomy: Backed by Re:Build while operating with startup independence

Benefits: Full health/dental/vision bonus program generous 401K paid time off annual learning stipend

Equity & Growth: Participation in Re:Builds LTIP equity program and opportunity for founder equity in potential spin-out

Compensation & Location

Location: Remote-first with preference for candidates in Boston Seattle Los Angeles or other cities with Re:Build offices

Compensation: Base salary range of $165000 to $215000 with performance bonus and long-term incentive plan offered. Potential equity stake under independent spinout scenario.

Please note this role is restricted to US citizens or lawful permanent residents only due to exposure to export controlled information

About Re:Build Manufacturing

Re:Build Manufacturing is a growing family of industrial and engineering businesses combining enabling technologies operational superiority and strategic M&A to build Americas next generation industrial company. At Re:Build we deploy deep expertise in engineering operations management and technology to supercharge the performance of our member companies. We harness deep professional expertise and a candid principled operating culture to drive differentiated outcomes. Ours is a fast-paced environment where individuals can stretch and be challenged to pursue their fullest potential.

Re:Build was founded to pioneer a profitable model for the revitalization of US manufacturing. Weve assembled a powerful set of complementary capabilities and lines of business that enable us to pursue a wide range of end markets. Our acquired businesses are grounded in build-to-print and by-the-hour engineering and design services and were using their combined expertise to migrate to increasingly sophisticated program development and production as well as the generation of our own products. Our unique set of capabilities lend themselves to highly complex systems and products and we offer customers a range of services including product and systems design automation fabrication assembly and large volume contract manufacturing. Our customers span a wide array of industries including aerospace defense mobility healthcare pharma biotech clean tech chemicals energy lifestyle food production and industrial equipment.

We want to work with people that reflect the communities in which we operate

Re:Build Manufacturing is proud to be an Equal Employment Opportunity and Affirmative Action employer. We do not discriminate based upon race color religion gender gender identity or expression sexual orientation national origin genetics disability age veteran status marital status parental status cultural background organizational level work styles tenure and life experiences. Or for any other reason.

Re:Build is committed to providing reasonable accommodations for qualified individuals with disabilities in our job application procedures. If you need assistance or an accommodation due to a disability you may contact us at or you may call us at 617.909.6275.