Platform Engineer

Salary: £65,000 - £75,000 
Location: UK or Europe 
Please note: We are unable to sponsor international visas at this time.

About Nexus Mods
Established in 2001, Nexus Mods is the largest video game modding platform on the internet - a household name in the PC gaming ecosystem.

• 71M+ registered members0
• 800K+ mods for 4,000+ games
• 21B+ mod downloads

We're currently focused on product modernisation, driving growth and building infrastructure for the next 10 years of community-powered modding.

Our Role
We're looking for a Senior Platform Engineer to join our Platform Engineering team, with a primary focus on Vortex, our open-source mod manager used by millions of gamers. Vortex is an Electron desktop application built with TypeScript, React, Redux, and Node.js.

Most of this role is owning the build, release, and developer infrastructure for Vortex: CI/CD pipelines, build toolchain, packaging, code signing, auto-update, testing infrastructure, and developer experience across Windows and Linux. Alongside that you'll contribute to the rest of the Platform team's work: CI/CD for other services, observability, on-call rotations, and Infrastructure as Code. You'll work closely with the App engineers to improve how Vortex is built, packaged, and shipped.

• Own and improve CI/CD pipelines across all services, with Vortex as the primary focus (GitHub Actions).
• Own and optimise the Vortex build toolchain: pnpm/Nx monorepo task orchestration, TypeScript compilation, module bundling (Webpack 5, migrating to Rolldown), Electron packaging via electron-builder, and native module compilation (node-gyp, @electron/rebuild).
• Set up and maintain testing infrastructure for Vortex: unit and integration testing (Vitest), and end-to-end testing (Playwright).
• Design and maintain the Vortex release pipeline: versioning, signing, auto-update infrastructure, staging/beta channels, and installer generation.
• Improve the developer experience for App engineers: local development setup (Windows and Linux), fast rebuild and reload cycles, debugging tooling, and dependency strategy (pnpm package management, native dependency builds, security scanning).
• Support ongoing Electron and Node.js runtime upgrades, ensuring native module compatibility and minimising breakage in the extension ecosystem.
• Respond to infrastructure incidents, participate in on-call rotations, contribute to post-incident reviews, and write/maintain Infrastructure as Code (Terraform) for the cloud resources our services depend on.

Role Requirements

• Strong production experience with TypeScript and Node.js.
• Experience with Electron application development, packaging (electron-builder or similar), and distribution, including code signing and auto-update mechanisms.
• Experience with native module compilation in Node.js (node-gyp, C++ addons), and managing native module compatibility across Electron / Node.js runtime upgrades.
• Experience building and optimising CI/CD pipelines for complex application builds across Windows and Linux (GitHub Actions or similar).
• Familiarity with pnpm and monorepo tooling (Nx or similar).
• Experience with JavaScript bundlers (Webpack required; experience with Rolldown, esbuild, or other bundler migrations a plus).
• Experience setting up and maintaining testing infrastructure for desktop applications, including E2E (Playwright or similar).
• Experience with at least one major cloud provider (we use a multi-cloud setup).
• Experience with monitoring and observability tools (Prometheus, Grafana, or similar).
• Understanding of secrets management and infrastructure security principles.

Bonus Skills

• Experience with Kubernetes in production (deploying, managing, and troubleshooting workloads).
• Experience with React and Redux in a desktop application context.
• Familiarity with .NET / C# interop from Node.js (typically over IPC).
• Experience managing code signing infrastructure (EV certificates, HSM workflows, Windows code signing).
• Experience with Infrastructure as Code (Terraform).
• Experience with desktop application crash reporting and telemetry (Sentry, Crashpad, Breakpad, OpenTelemetry, or similar).
• Familiarity with binary diff / delta update mechanisms (bsdiff, courgette, or similar).
• Experience with open-source project infrastructure (GitHub Actions community workflows, contribution workflows, release management).
• Familiarity with extension/plugin architecture patterns and developer SDK tooling.
• Background in the gaming industry, modding community, or building tooling for technical creators.

Benefits of Working at Nexus Mods
We work a 4-day week of 32 hours, with no reduction in pay. An allowance of £25 each month to spend on video games. Employee Assistance Programme. Private BUPA healthcare for you and your family. A very flexible training budget. Regular social events throughout the year. Participation is optional!

Diversity and Inclusion
We celebrate diversity and want you to bring your whole self to work. Supporting an incredible community of tens of millions of users, we thrive on engaging as many views as possible to improve our platform. We see no reason why our culture should be any different.