Product Engineer, Platform

Ampersand; San Francisco (CA); On-site; USD 100,000 - 150,000; Full time

Job summary

Ampersand is looking for a Product Engineer based in San Francisco, California, to enhance the user experience of a platform for advanced software and AI teams. This role emphasizes full stack feature development and direct customer engagement, ensuring that the product standards are established from the start.

Candidates should possess a strong intuition for product design, with a preference for those with experience in shipping developer tools. Proficiency in Golang and React is highly desirable, along with excellent communication skills to articulate design decisions.

Qualifications

• 4+ years of experience engineering and designing digital products, ideally in B2B SaaS or developer tools.
• Capacity to work directly with customers to design meaningful features.
• Experience shipping customer-facing developer products.

Responsibilities

• Shape user experience for a platform used by technically sophisticated teams.
• Own full stack feature development including backend and frontend.
• Engage directly with customers for support and feedback.

Skills

Product intuition

Developer tools taste

AI tools usage

Golang experience

React experience

Strong communication skills

Job description

Responsibilities

• We’re hiring a Product Engineer to shape the user experience of a platform used by some of the most technically sophisticated teams in software and AI
• This is a foundational role. You’ll work closely with the founders, engineers, and customers to design experiences for complex, developer‑facing workflows — and help establish the design standards the product will be built on from here
• The team is small, the ownership is real, and the people you’ll work with care deeply about craft. If you do your best work when the problems are hard and what you ship actually matters, then this is the environment for it
• Full Stack Feature Development — Own the full loop: technical architecture, implementation, documentation, and customer communication. No throwing work over the fence. You will primarily work in the backend (Golang), but you are also comfortable implementing frontend features (React)
• Customer Engagement — Talk directly to customers — support questions, feedback gathering. Let what you hear shape what you build
• API Design and Architecture — Every engineer proposes API designs and technical architecture for the features they work on. We write succinct design docs, generously give each other feedback, and push towards the best solution
• Scale and Reliability — We are rapidly scaling our customer base, so we need to build with scale and edge cases in mind. Every engineer contributes to building alerting, telemetry, internal tooling, and automation to help us continue to ship fast while maintaining reliability
• AI Agents — In addition to our platform, we are building AI agents both of our own use and to ship to our customers. You will work on planning, tool use, evals, observability, guardrails, and the infrastructure needed to make agentic workflows reliable for customers

Qualifications

• Strong product intuition — you can work directly with customers to design features, not just implement specs
• Great taste in what makes developer tools intuitive; ideally you’ve shipped customer-facing developer products before
• You are AI-forward and love trying new AI tools. You think of yourself not as a coder, but as a builder who harnesses AI to multiply their productivity
• 4+ years engineering and designing digital products, ideally in B2B SaaS, developer tools, enterprise software, or technical products
• Golang and React experience is a strong plus
• Strong communication skills; you can articulate design decisions and push back when something isn’t right. Engineers here write their own feature docs and own their decisions