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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Full Stack Software Engineer - **Company:** Kustomer Inc. - **Location:** New York, United States (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Application Performance Management, Software Bug Management, Cloud Computing, Code Review, Databases, Data Integrity, Data Structures, Cursor (Graphical User Interface Elements), Software Debugging, Programming Tools, Distributed Systems, Elasticsearch, Github, MongoDB, Node.Js, Software Engineering, User Environment Management, Web Applications, GitHub Copilot, ReactJS, Concurrency, Backend, Integration Tests, Information Technology, Front End Software Development, Api Design, Golang - **Published:** September 17, 2026 - **Apply:** https://startup.jobs/software-engineer-full-stack-senior-staff-kustomer-2-7174386 ## About the Role * 7+ years of progressive software development experience and a Bachelor's degree in Computer Science, Software Engineering, or a related field * You're comfortable working across frontend and backend. You may have a stronger side, and that's fine. What matters is that you can follow the work wherever it goes and aren't blocked by an unfamiliar layer. * You understand how systems work at depth and have experience with cloud platforms like AWS or similar. Data structures, algorithms, concurrency, distributed systems, API design, database internals; these are tools, not trivia. * You don't need to be the domain expert before contributing. You read READMEs, trace execution, ask sharp questions, and start adding value fast. * You own the outcome, not just the ticket. You raise risks early, communicate progress proactively, and care about what ships, not just what you committed. * You're able to diagnose and debug complex issues, optimize application performance, and identify areas for improvement. * You have hands-on experience with modern AI developer tools, such as GitHub Copilot, Cursor, or Claude Code, and have built a real working practice around using them as a force multiplier for code comprehension, test scaffolding, documentation, debugging, and ramp. * Your application will stand out if you have: + Familiarity with integrating AI or ML-powered capabilities into web applications, even at a prototype or feature level + Exposure to integrating third-party AI APIs or frameworks (e.g., OpenAI, Anthropic, LangChain, or vector databases like Pinecone) + Interest in exploring how AI can enhance developer workflows and improve product functionality + Github activity showing thoughtful, relevant contributions ## Description Kustomer is hiring a Full Stack Software Engineer to join our Engineering team. In this role, you'll work as part of a Pod: a 3-5 person team that picks up a high-priority initiative, ramps quickly, ships end-to-end, and moves on to the next one. You'll be a capable, adaptable engineer who can walk into any part of the codebase, understand it, and make it better. You'll ship new capabilities, improve performance, and contribute to the evolution of our architecture using technologies like Node.js, React, Golang, and AWS, collaborating closely with your squad leader and teammates across engineering, product, and design. AI is a core part of how we build. You'll use AI tools daily to move faster and raise the bar on what you ship. You'll also help build AI-powered product capabilities that meaningfully improve the customer experience. We're looking for engineers with strong technical judgment, a high bar for craft, and real curiosity about how systems, product, and AI intersect. You take initiative, thrive in ambiguous problem spaces, and own your work end to end, from design through production. Not because someone's tracking it, but because you genuinely care about what you're building. If you want your work to directly shape the product and the team around you, we'd love to hear from you. What You'll Do: * Ship full-stack features end-to-end as a member of a Pod, owning scope from problem definition through production, using technologies like Node.js, React, Golang, MongoDB, ElasticSearch, and AWS * Develop APIs and integrate with external services and databases, ensuring data integrity and security * Build front-end interfaces with a focus on user experience, responsiveness, and accessibility * Design and implement AI-powered features where they enhance end-user experience or improve platform efficiency * Contribute to scope and tradeoff decisions alongside your Pod Lead; own what's in scope, escalate what isn't, and communicate progress proactively * Optimize application performance through caching, efficient algorithms, and database indexing * Write thorough unit and integration tests to ensure quality and reliability * Conduct code reviews, provide constructive feedback, and mentor junior engineers to uphold a high quality bar * Share production support responsibility on a rotating basis, including on-call and bug triage, distributed equitably across the team * Stay current with emerging AI tools, full-stack technologies, and industry trends - and actively propose and champion those that improve team velocity, quality, and development practices * Ramp quickly on unfamiliar parts of the codebase aided by AI tooling, consistent code hygiene, and a deep engineering foundation ## Related Videos - [Innovating Developer Tools with AI: Insights from GitHub Next](https://www.wearedevelopers.com/videos/1268-innovating-developer-tools-with-ai-insights-from-github-next) - [The AI-Ready Stack: Rethinking the Engineering Org of the Future](https://www.wearedevelopers.com/videos/1706-the-ai-ready-stack-rethinking-the-engineering-org-of-the-future) - [Go with the Flow: Stop the Leaks Before Your Memory's a Waterfall!](https://www.wearedevelopers.com/videos/100073-go-with-the-flow-stop-the-leaks-before-your-memory-s-a-waterfall) - [Stop using Node.js like in 2020! What changed and what you can do today with Node.js](https://www.wearedevelopers.com/videos/100011-stop-using-node-js-like-in-2020-what-changed-and-what-you-can-do-today-with-node-js) - [Collaborative Intelligence: The Human & AI Partnership](https://www.wearedevelopers.com/videos/1097-collaborative-intelligence-the-human-ai-partnership) - [Stop Using Node.js Like It’s 2020! - Alfonso Graziano](https://www.wearedevelopers.com/videos/1863-stop-using-node-js-like-it-s-2020-alfonso-graziano) ## Related Articles - [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [What is Software Engineering in the Age of AI?](https://www.wearedevelopers.com/magazine/640-what-is-software-engineering-in-the-age-of-ai) - [What is Agentic Programming and Why Should Developers Care?](https://www.wearedevelopers.com/magazine/625-what-is-agentic-programming-and-why-should-developers-care) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Dev Digest 137 - AI'm not sure about this](https://www.wearedevelopers.com/magazine/485-dev-digest-137-ai-m-not-sure-about-this)