> Markdown version of [/jobs/ext/4638688-software-engineer-marketplace](https://www.wearedevelopers.com/jobs/ext/4638688-software-engineer-marketplace). 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 - Marketplace - **Company:** A. & A. FEDER'S INC. - **Location:** San Francisco, CA, United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Integrated Library Systems, Microsoft Software, Software Engineering, Systems Architecture, Workflow Management Systems, Marketplace - **Published:** November 8, 2026 - **Apply:** https://www.careerbuilder.com/job-details/software-engineer-marketplace-san-francisco-ca--d53c2389-41f6-48b5-b4a8-6a336d48bdad ## About the Role Software Engineering, Artificial Intelligence (AI), Research Laboratory, Unicorn Library Management System, Microsoft Product Family, System Architecture, Securities, Product Development, Product Engineering, Onboarding, This is a hands-on product engineering role for someone with 3-5 years of experience who wants unusually high ownership. You will work directly with Growth, Operations, Design, and the founders, turning ambiguous opportunities into simple, reliable software that drives measurable outcomes., * 3-5 of professional software engineering experience, ideally building high-velocity product, growth, marketplace, or workflow software. * Strong full-stack engineering ability and a track record of shipping user-facing product from ambiguous requirements. * Excellent product sense: you can distinguish the real problem from the first requested solution and focus on what will move the metric. * Comfort working closely with non-technical partners and translating their needs into simple, robust systems. * High ownership, strong judgment, and the ability to move quickly without creating unnecessary complexity., * Experience with growth engineering, marketplace liquidity, onboarding, conversion optimization, or product analytics. * Experience at a fast-growing startup or on a lean team where engineers owned both product decisions and execution. * Interest in AI, data products, or tools that make complex work more scalable. ## Description * Build end-to-end product experiences across expert acquisition, onboarding, assessments, matching, activation, and retention. * Partner directly with Growth and Operations to identify the highest-leverage bottlenecks, instrument the funnel, and ship improvements quickly. * Own experiments from idea through implementation and measurement: define the hypothesis, build the product, assess the result, and iterate. * Develop internal tools and automation that make customer-facing and operational teams dramatically more effective without compromising quality or control. * Create durable product primitives and clean interfaces rather than one-off workflows; improve existing systems as you touch them. * Use data, user feedback, and technical judgment to make clear tradeoffs between speed, reliability, and long-term maintainability.