Senior Software Engineer

About the role

About impact.com:

impact.com is the world’s leading commerce partnership marketing platform, transforming the way businesses grow by enabling them to discover, manage, and scale partnerships across the entire customer journey. From affiliates and influencers to content publishers, brand ambassadors, and customer advocates, impact.com empowers brands to drive trusted, performance-based growth through authentic relationships. Its award-winning products - Performance (affiliate), Creator (influencer), and Advocate (customer referral) - unify every type of partner into one integrated platform. As consumers increasingly rely on recommendations from people and communities they trust, impact.com helps brands show up where it matters most. Today, over 5,000 global brands - including Walmart, Uber, Shopify, Lenovo, and Fanatics - rely on impact.com to power more than 350,000 partnerships that deliver measurable business results.

The Team:

Application Platform Engineering owns what every product team at impact.com builds on: shared libraries, service templates and engineering standards. Our goal is to build the paved road, where the right way to build a service is also the easiest, and compliant by default.

You'll join a small but growing team, reporting directly to our Senior Director of Engineering and working with a dedicated product manager, early enough to shape what we build and how we work.

Your Role at impact.com:

Your customers are other engineers, and your reach is all of engineering. What you build runs inside every new service, so a good decision pays off many times over, and a security patch lands once and reaches everyone. Where five teams would each solve the same problem differently, you give it one owner and one good implementation.

This is a hands-on role: most of your time goes into writing and shipping code, with the rest spent working with teams on discovery and adoption. You'll talk to teams to find out where they're losing days, decide which problems are worth solving once for everyone, build the solution, and see it through to adoption. Teams adopt our solutions because they're the best option and we treat them like internal products with a roadmap, versioned releases, and good documentation.

What You'll Do:

- Build and own shared components such as service scaffolding, logging, observability and authentication, shipped as libraries, SDKs, shared services and agentic tooling (MCP servers, agents, skills and plugins)

- Find problems by working directly with product teams and decide what's worth solving centrally, using AI to confirm impact and scope in repositories you don't own

- Solve the problems that only show up at platform scale: keeping APIs compatible for consumers you don't control, and moving live services onto new foundations without downtime

- Own adoption end to end, including rollout plans, migration tooling, upgrade guides, and hands-on support. Measure adoption and reliability and report them honestly