Senior Platform Engineer

Salary: £65,000 - £75,000 Location: Remote, but within the UK 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. 77M+ registered members 900K+ mods for 4,000+ games 24B+ 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 own CI/CD, build tooling, release pipelines, and developer experience across our engineering teams with a strong focus on Vortex, our open-source Electron mod manager (TypeScript, React, Redux, Node.js) used by millions of gamers. You'll design and maintain the infrastructure that lets our engineers ship confidently and often: pipelines, packaging, testing, monitoring, and the tooling that sits underneath it all. Experience with Electron or desktop app packaging is a strong plus given Vortex is a key focus, but we're primarily hiring for platform engineering depth so the desktop-specific pieces can be picked up on the job. Own and improve CI/CD pipelines across all services (GitHub Actions), including Windows and Linux build runners. Design and maintain release pipelines: versioning, staging/beta channels, and deployment/installer generation. Set up and maintain testing infrastructure: unit/integration (Vitest) and E2E (Playwright). Improve developer experience across teams: local dev setup, fast rebuild/reload cycles, debugging tooling, and dependency strategy (pnpm, monorepo tooling, security scanning). Maintain and evolve build toolchains: TypeScript compilation, bundling (Webpack 5, migrating to Rolldown), and monorepo orchestration (pnpm/Nx). Support ongoing runtime upgrades (Node.js, and Electron where relevant), managing compatibility and minimising ecosystem breakage. Participate in on-call, respond to infrastructure incidents, contribute to post-incident reviews, and maintain Infrastructure as Code (Terraform). Essential - Platform, Build & Release Strong production experience with TypeScript and Node.js. Experience building and maintaining CI/CD on Windows runners, including PowerShell scripting and the practical differences from Linux-based pipelines around caching, path handling, and runner performance. CI/CD experience for complex, multi-service builds (GitHub Actions or similar). Experience owning release pipelines: versioning, packaging/deployment, staged rollouts. Familiarity with monorepo tooling (Nx, pnpm, or similar). JavaScript bundlers (Webpack required; Rolldown/esbuild migration experience a plus). Testing infrastructure experience, including E2E (Playwright or similar). Important - Infra & Cloud At least one major cloud provider (we're multi-cloud). Infrastructure as Code (Terraform). Monitoring/observability tools (Prometheus, Grafana, or similar). Understanding of secrets management and infra security principles. Bonus - Electron & Desktop Production experience shipping or maintaining an Electron (or comparable, e.g. Tauri/NW.js) desktop application. Electron packaging and distribution (electron-builder or similar), including code signing and auto-update. Native module compilation (node-gyp, C++ addons) and managing compatibility across Electron/Node.js upgrades. Code signing infrastructure (EV certificates, HSM workflows, Windows code signing). Desktop crash reporting and telemetry (Sentry, Crashpad, Breakpad, OpenTelemetry, or similar). Binary diff / delta update mechanisms (bsdiff, courgette, or similar). React and Redux in a desktop application context. 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.