Full-stack Engineer

Archive is hiring a Senior Fullstack Engineer. This is a hands-on, high-autonomy role on a small, meeting-light team that operates without a traditional product manager. You’ll own features end to end, ship quickly, and help set the bar for how we build in an AI-native world.

Our day-to-day engineering workflow is AI-first: we build with tools like Claude and Devin as a normal part of how we work. You don’t need to have worked in a fully AI-native environment before; what matters is genuine enthusiasm for building with AI and the judgment to use it well. Responsibilities

Build across the stack

• Own fullstack features end-to-end, from design through release through maintenance, across a modern stack; true comfort on the backend is key
• Develop and maintain robust integrations (payments, gift cards, and beyond), building reliable, production-quality systems

Own it and collaborate

• Take real ownership in a flexible, fast-evolving environment with light process and no traditional Product Manager
• Collaborate cross-functionally to turn needs into shipped outcomes
• Share in the engineering on-call rotation (incident response and support)

Debug and strengthen the system

• Debug production issues across multiple levels of the stack
• Make pragmatic architecture and system design calls, balancing speed, scale, reliability, and maintainability

Build AI-first

• Use AI tools like Claude as a force multiplier across your workflows, with good judgment about where to trust them and where not to
• Help the team level up its AI-native development practices and set the bar for how we build in an AI-default world, Edtech * Fintech * Payments * Social Impact * Financial Services * Big Data Analytics Owner of end-to-end ecommerce features: design, implement, and maintain scalable backend services and performant React/Next.js frontends. Integrate payment gateways and procurement systems (PunchOut), mentor engineers, uphold code quality, and improve platform stability across Node.js, MySQL, and MongoDB. Top Skills: CoupaCxmlGraphQLJaggaerJavaScriptMongoDBMySQLNest.JsNext.JsNistNode.jsOciOracle ProcurementPci-DssPunchoutReactRestSap AribaSoc 2Typescript Clear Street

• A strong track record as a fullstack engineer with production experience across frontend and backend services, comfortable owning a feature end to end
• An AI-first dev workflow: you are ready and excited to build, review, and debug with AI coding tools and agents as a default, and can show how it makes you faster-and where you choose not to rely on it
• Bias towards action in a fast-moving, small-team environment: you ship, iterate, and take ownership without a heavy playbook
• Solid debugging and systems judgment: you can reason about an unfamiliar system and find the real problem
• Comfort with systems design and reasoning about scale, reliability, and trade-offs
• Bonus: familiarity with our stack (Next.js / React / TypeScript / Node / GraphQL / Postgres) and multi-tenant platform experience

The expected annual base salary range for this position is 180,000-200,000, USD. Compensation varies based on a variety of factors which include (but aren’t limited to) role level, skills and competencies, qualifications, knowledge, location, and experience. In addition to base pay, this role is eligible for equity, and all employees are eligible for a full benefits package including employee and dependent healthcare and 401(k) enrollment., 200K-350K Annually Senior level 200K-350K Annually Senior level Fintech * Software * Financial Services Design and build a high-performance, AI-native web trading experience for sophisticated retail traders. Ship core trading workflows (order entry, positions, blotter, watchlists, alerts), implement trustworthy AI UI patterns, collaborate with backend engineers on low-latency contracts, and iterate quickly with users and stakeholders to deliver end-to-end product features. Top Skills: PostgresReactReact NativeRustTypescript Circle (circle.so), United States Easy Apply 130K-140K Annually Senior level 130K-140K Annually Senior level Artificial Intelligence * Consumer Web * Digital Media * Information Technology * Social Impact * Software Build end-to-end full-stack AI features on a Ruby on Rails backend and React frontend, design and run experiments (A/B tests and AI evaluations), implement AI infrastructure for reliable LLM inference, and iterate quickly to scale production-ready LLM-powered products. Top Skills: Ai AgentsLlmsMySQLPostgresReactRetrieval-Augmented Generation (Rag)Ruby On Rails

What you need to know about the Colorado Tech Scene

With a business-friendly climate and research universities like CU Boulder and Colorado State, Colorado has made a name for itself as a startup ecosystem. The state boasts a skilled workforce and high quality of life thanks to its affordable housing, vibrant cultural scene and unparalleled opportunities for outdoor recreation. Colorado is also home to the National Renewable Energy Laboratory, helping cement its status as a hub for renewable energy innovation.

Key Facts About Colorado Tech

• Number of Tech Workers: 260,000; 8.5% of overall workforce (2024 CompTIA survey)
• Major Tech Employers: Lockheed Martin, Century Link, Comcast, BAE Systems, Level 3
• Key Industries: Software, artificial intelligence, aerospace, e-commerce, fintech, healthtech
• Funding Landscape: $4.9 billion in VC funding in 2024 (Pitchbook)
• Notable Investors: Access Venture Partners, Ridgeline Ventures, Techstars, Blackhorn Ventures
• Research Centers and Universities: Colorado School of Mines, University of Colorado Boulder, University of Denver, Colorado State University, Mesa Laboratory, Space Science Institute, National Center for Atmospheric Research, National Renewable Energy Laboratory, Gottlieb Institute

Own end-to-end fullstack features across a modern stack, build and maintain integrations (payments, gift cards), debug production incidents, participate in on-call rotation, make pragmatic system design decisions for scale and reliability, and champion an AI-first development workflow using tools like Claude and agents. The summary above was generated by AI

At Archive, we believe great products should live many lives. We build the technology that powers branded resale for some of the world’s most beloved companies, including Lululemon, The North Face, New Balance, Dr. Martens, Peloton, and 50+ others. Our platform makes it easy for brands to keep products in circulation and for customers to shop secondhand with confidence.

The secondhand market is growing three times faster than traditional retail and is projected to reach $350B globally by 2028. We’re building the infrastructure behind that shift, helping brands turn resale into a meaningful part of their business and helping consumers rethink how they shop. If you’re excited to change consumer behavior for the better, we’d love to meet you., Archive is a Series B company backed by Lightspeed Venture Partners, Energize Capital, and Bain Capital Ventures, and was named Fast Company’s #2 Most Innovative Company in Retail in 2024. We’re a small team with low egos and high agency, working on a problem that actually matters; and having a lot of fun doing it.

This is a remote role open across the continental US. We have offices in New York and the SF Bay Area, with hybrid options for those nearby.