Senior Full Stack Product Engineer – AI

gobravvo; Seattle (WA); Remote; USD 150,000 - 210,000; Full time

Benefits offered by this job

Bonus eligibility

Equity participation

Health insurance

Flexible paid time off

Fully remote with team summits

Job summary

AZX seeks a Senior Full Stack Product Engineer – AI to join a remote, U.S.-based team. You will build enterprise-grade AI solutions, craft demos, and ensure accessibility, localization, and auditability across products.

The role emphasizes ownership, collaboration, and delivering impactful climate-focused technology. The ideal candidate brings 5+ years in React/TypeScript, strong streaming protocol experience, and full-stack proficiency with Node/FastAPI, PostgreSQL, and modern tooling, all

Qualifications

• 5+ years of production React/TypeScript experience, including streaming UIs and state management.
• Experience implementing streaming protocols (SSE/WebSocket), including reconnection and chunk management.
• Full-stack ship experience with Node/Fastify or Python/FastAPI; auth, idempotency, pagination, migrations.
• Experience delivering accessible, localized, enterprise-grade products.
• AI-native workflow with daily use of AI coding tools and validation of outputs.
• Ownership mindset with instrumentation and on-call readiness.
• Deep TS/React, TanStack Query, Vite, Node/Fastify, Python/FastAPI, Postgres, Redis.
• zod wire contracts, sandboxed iframes, Playwright, Vitest, WCAG 2.2 AA, i18n, OIDC/OAuth2.
• Bachelor's degree required; Master's a plus.
• US employment authorization (full-time).

Responsibilities

• Lead design and development of chat surfaces and agent workspaces with streaming protocols.
• Collaborate to enhance app builder features, templates, toolchains, and previews.
• Maintain and standardize shared components and design systems for cohesion.
• Develop agent-facing tools: CLI, deployment utilities, manifest management.
• Own full-stack features: TS/React frontend, Node/FastAPI backend, Postgres, deployment, on-call.
• Deliver accessibility, localization, and audit trails as tangible capabilities.
• Diagnose across stack using traces/logs to foster collaboration.

Skills

React/TypeScript

Streaming UIs

Node/FastAPI

Postgres

Authentication

Localization

Accessibility

On-call

DevTools

Education

Bachelor's degree

Tools

Playwright

Vitest

zod

OIDC/OAuth2

Job description

Senior Full Stack Product Engineer – AI Summary

AZX is seeking a skilled Senior Full Stack Product Engineer – AI to join our dynamic and mission-driven team. In this full-time, remote position, you will play a pivotal role in building and maintaining innovative enterprise-grade AI solutions. You will be responsible for creating compelling product demos, ensuring high standards for accessibility, localization, and auditability, and collaborating across multidisciplinary teams. AZX focuses on advancing positive impact in critical sectors through cutting‑edge artificial intelligence and machine learning, with an emphasis on sustainability, clean energy, and climate solutions. As a Senior Full Stack Product Engineer – AI, you will have the opportunity to contribute significantly to projects that address real‑world challenges, including decarbonization, energy systems optimization, and climate risk mitigation. Our company culture values ownership, collaboration, and a commitment to excellence in both technology and user experience.

Duties & Responsibilities

• Lead the design, development, and evolution of chat surfaces and agent workspaces, integrating robust streaming protocols for both client and server environments.
• Collaborate closely with the platform team to enhance app builder functionality, manage app templates, improve toolchains, and optimize user preview experiences.
• Maintain and standardize the shared component and design systems across multiple product interfaces, ensuring cohesive visual and behavioral experiences.
• Create and refine agent-facing developer experiences, including CLI tools, deployment utilities, and manifest management, treating developer agents as core users.
• Take full‑stack ownership of features, managing front‑end (TypeScript/React), backend (Node/FastAPI), database (Postgres), deployment, and on‑call responsibilities.
• Deliver enterprise‑ready features such as accessibility, localization, and audit trails as demonstrable product capabilities, not just future promises.
• Diagnose and resolve issues across the technology stack by analyzing backend service traces and runtime logs, facilitating seamless collaboration between product, backend, and platform teams.

Salary & Benefits

• Highly competitive salary commensurate with skills and experience.
• Bonus eligibility based on individual and company performance.
• Equity participation in a fast‑growing, impact‑driven organization.
• Comprehensive health insurance with significant coverage for dependents.
• Flexible paid time off policy to support work‑life balance.
• Fully remote work environment with periodic team summits and a supportive, collaborative culture.

Qualifications & Requirements

• Minimum 5 years of production‑level experience with React/TypeScript, including streaming UIs, virtualization, real state management, and hands‑on proficiency with React 19.
• Demonstrated expertise in implementing and debugging streaming protocols (SSE or WebSocket) from end to end, including reconnection, chunk management, and abort propagation.
• Proven full‑stack development skills, having shipped both front‑end and back‑end components, with proficiency in Node/Fastify or Python/FastAPI, and experience with authentication, idempotency, pagination, and migrations.
• Strong product sensibility, with a track record of delivering enterprise‑grade accessibility, localization, and thoughtful user states.
• AI‑native work approach, using AI coding tools daily, with clear examples of critical thinking and tool output validation.
• Ownership mindset, including instrumentation, evaluation of AI‑dependent behaviors, cost awareness, and on‑call readiness as integral responsibilities.
• Technical depth in core stack technologies: TypeScript (strict), React 19, TanStack Query, Vite, Node/Fastify, Python/FastAPI, Postgres, Redis, and streaming protocols.
• Familiarity with related tools: zod‑validated wire contracts, sandboxed iframes, Playwright, Vitest, WCAG 2.2 AA, i18n frameworks, and OIDC/OAuth2 session handling.
• Bachelor's degree required; advanced degrees (Master's) are a plus.
• Authorization to work in the U.S. on a full‑time basis.

Ideal Candidate Snapshot

• Proactive, detail‑oriented, and committed to delivering high‑quality, user‑centric solutions.
• Enjoys working in a collaborative, remote‑first environment and values clear, open communication.
• Thrives in a fast‑paced, mission‑driven company focused on solving sustainability and climate challenges through technology.
• Demonstrates a growth mindset, eager to learn new tools and technologies as needed.
• Has a passion for AI, clean tech, and making a tangible impact in critical industries.

Other Relevant Information

• AZX partners with Provn for hiring; the process includes a take‑home technical assignment and a live technical session with the engineering team.
• Candidates are encouraged to apply for no more than two roles within a six‑month window.
• Company summits are held twice annually for in‑person team building and collaboration.
• Remote role based in the U.S.; enjoy the flexibility and benefits of working from anywhere while collaborating with a talented and passionate team.

AZX is an equal opportunity employer, committed to diversity and inclusion.

We do not discriminate based on race, color, religion, sex, sexual orientation, gender identity or expression, national origin, age, disability, veteran status, or any other legally protected characteristic.