Senior DevEx Engineer - Infrastructure

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About the role

An Introduction to Primer Primer is the unified infrastructure for global payments. We give finance and payments teams the visibility and control to reduce complexity, improve performance, and capture more revenue - all from a single platform. Backed by Sofina, Peak XV Partners, ICONIQ, Tencent, Accel, and Balderton, we're building the payments layer the world's best companies rely on. Watch our showcase > Read up on our $100m Series C Learn more about our culture > Which team will you be joining? You'll join Infrastructure, the team that owns the platform every other Primer engineer builds and ships on. CI/CD, deployment, internal tooling, ephemeral environments: if it's how code gets from a laptop to production safely, it's ours. We operate the way the rest of Primer does. Remote-first, async, high autonomy, low bureaucracy. You build it, you own it, and that includes running it in production. You'll report to the Engineering Manager for Infrastructure & Data and work alongside a small group of senior infrastructure engineers. What makes this interesting right now is the human-AI development loop. Coding agents are changing how software gets built, and we want someone to own how that actually works at Primer rather than bolting it on. That part of the role is yours to define. What will you be doing? • Own Primer's internal developer platform end to end: the CI/CD pipelines, deployment workflows (canary, blue/green), self-service tooling and ephemeral environments that every engineer here depends on to ship. • Build the human-AI development loop. This is the most open part of the role: the tooling and automation that let engineers work effectively alongside coding agents, and the patterns that make agent-driven workflows fast and safe at Primer. • Treat developer productivity as a measurable system. Instrument it, find where delivery actually slows down, and ship the changes that fix it instead of guessing. • Take real operational ownership. You'll join the Core Infrastructure on-call rotation and own the reliability of what you build. • Set the technical direction for how Primer's engineers build and ship, and bring less experienced engineers along with you as you do it. • Improve how engineers write code, not just how they ship it. Partner with product teams to make the tools, frameworks and internal APIs they use everyday more ergonomic, and help reduce the friction of building features at Primer. • Build Primers paved roads. Reduce the application boilerplate engineers write, shape standards around how services are built and configured, and own the golden-path tooling that lifts efficiency across every team. • Work in the open across a fully distributed team, making your decisions and trade-offs visible rather than holding them in your head. What we're looking for • Strong cloud infrastructure experience. AWS is preferred; we'll also consider strong GCP backgrounds. • Hands-on Kubernetes experience. • Infrastructure-as-code as a working tool, not a buzzword. Terraform is preferred, but Pulumi, CloudFormation, Ansible or similar are fine. Not having Terraform specifically is not a blocker. • CI/CD as a core competency. You've owned the build, test and deploy workflow and preview environments, not just used them. • A history of measuring and improving delivery, using DORA, SPACE or a similar framework to back the work up. • Comfortable owning production systems and being part of an on-call rotation. • A genuine software engineering background. You've built and maintained applications or products, not just infrastructure tooling. • You can reason about what makes code pleasant to work with. This is what lets you build AI and developer tooling that engineers actually want to use. • An async-first communicato

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