Senior Software Engineer

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.

• 65M+ registered members
• 750K+ mods for 3,500+ games
• 18B+ 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 are seeking an experienced Engineer to modernise the gta5-mods.com application, improve code quality and security, reduce operating risk and accelerate feature delivery.

Our application is built with Ruby on Rails, so strong experience with this framework is essential. 

Please note:

• This is a contract position, for 2 months (we work a 4-day week).
• Can be remote, but within the UK.

Responsibilities: 

• Security & Supportability: Upgrade to a supported Ruby/Rails version, update dependencies, and ensure all libraries are actively maintained, 
• Performance & Reliability: Enhance caching, background processing, and database performance, define and introduce SLOs and key metrics. 
• Developer Velocity: Implement a  modern development environment (DevSpace/Kubernetes), CI/CD pipelines, automated testing and static analysis to improve iteration speed. 
• UX/Frontend Modernization: Refresh the frontend styling pipeline and modernise JS/CSS tooling for safer, faster asset delivery. 
• Observability: Standardise logging, metrics, and tracing with actionable dashboards and alerts.

Requirements

• Proven Ruby on Rails experience. 
• Demonstrated success modernising or refactoring legacy web applications. 
• Ability to work independently and deliver results with minimal supervision.