> Markdown version of [/jobs/ext/4587503-software-engineer](https://www.wearedevelopers.com/jobs/ext/4587503-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer - **Company:** Magnet, LLC - **Location:** New York, NY, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Programming Tools, Distributed Systems, PostgreSQL, Node.Js, Prism (Software), Software Engineering, Postman, Sonatype, Backend, Stripe, Sentry, Api Design - **Published:** November 5, 2026 - **Apply:** https://www.careerbuilder.com/job-details/software-engineer-ny--61e95e6e-03fb-42f3-a077-45a249abec3e ## About the Role Software Engineering, Architectural Services, Team Building, PostgreSQL, Systems Maintenance, Node.js, Distributed Computing, Data Modeling, Application Programming Interface (API), Large-Scale Systems, We're looking for a Senior Backend Engineer to join a fast-moving infrastructure team building highly flexible, developer-first commerce systems. This role is ideal for someone who thrives in high-ownership environments, enjoys solving complex technical challenges, and has deep experience working on products with significant architectural complexity., * 8+ years of backend engineering experience with strong proficiency in Node.js or Postgres * Based in East Coast Americas or Europe * Experience working with complex products, such as: * + Developer tooling (e.g., Snyk, Sentry, Postman, Prisma) + Orchestration or workflow tooling (e.g., Temporal, Alloy) + Payments infrastructure (e.g., Stripe, Checkout, Adyen) + Delivery or ride-sharing applications + Hands-on experience building large distributed systems * Experience scaling early-stage startups, ideally from Seed through Series A/B * Strong individual contributor (IC) background; recent roles should be hands-on * Familiarity with e-commerce, payments, logistics, or API-driven infrastructure is a plus, * IC (individual contributor) role in the last two positions * Ex-CTO or founder experience * Experience with distributed systems * Commerce experience, * Strong technical judgment with the ability to simplify complex problems * A product mindset and deep appreciation for developer experience * High ownership, autonomy, and a bias for action * Excellent communication and cross-functional collaboration skills ## Description * Design, build, and maintain backend systems using Node.js and Postgres * Architect and evolve complex distributed systems that support large-scale workflows, data models, and APIs * Collaborate closely with product and developer experience teams to deliver features that unlock new capabilities for customers * Work with early customers to understand use cases and guide them through architectural decisions * Build reliable, performant services with strong observability, testing, and security practices * Contribute to internal engineering standards, tooling, and documentation * Identify bottlenecks, propose solutions, and drive improvements across the infrastructure * Help shape foundational components of a managed services platform for hosted commerce infrastructure