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Climax Studios Logo Climax Studios · IT - Software Development

Principal Backend Engineer

United Kingdom · Job Posted June 14, 2026
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Job Description

We are looking for a highly experienced, fully remote Principal Backend Engineer. You’ll be UK or EU based and you’ll be working in a team of backend engineers across MPG to drive the delivery and deployment of backend services for industry-leading game projects. You will act as a key engineering contact for external co-dev clients, collaborating with the Technical Director and Lead to architect solutions that balance technical idealism with production pragmatism.

Job Responsibility

  • Individual contribution: architect systems, write code, deployments, etc.
  • Act as the engineering contact point between MPG and the client, working alongside the Project Manager and Engineering Leadership
  • Translate client requirements into tasks for yourself and team members
  • Make the right trade-offs to design systems based on performance, time, and budget
  • Mentor and delegate pieces of work to other team members to help develop them as engineers
  • Create estimated cost spreadsheets for online services based on projected concurrent users
  • Cultivate engineering best practices across teams: modular design, code quality, testing
  • Work with the Lead and Production to communicate risks, benefits, and future roadmaps
  • Active mentorship of the engineering team towards professional accreditation (e.g., AWS Certification) and technical leadership

Requirements

  • Experience in game development and having shipped multiple live games (or similar products) with a high concurrent user count
  • Proven experience architecting distributed applications with a high concurrent user base (hundreds of thousands), ideally proven with a released title or robust load tests
  • Production experience with at least one of Java, Golang, C#, C++, Kotlin
  • experience with Python, Node.js and React is desirable
  • Solid database experience, with the ability to work effectively with both SQL and NoSQL databases
  • Proven experience with cloud platforms: Amazon Web Services, Google Cloud and Microsoft Azure
  • having an AWS Certification (Professional level) would be advantageous
  • Proven experience building backend infrastructure using infrastructure as code tools, e.g. Terraform
  • Proven experience using Kubernetes and Docker to build products at scale
  • Ability to autonomously architect and design online services based on a specification
  • Ability to navigate changes calmly and manage multiple pieces of potentially confidential information
  • Excellent time management and ability to work autonomously
  • Clear and effective communicator with the ability to discuss technical strategy with non-technical stakeholders and adapt to client needs
  • Experience building CI/CD pipelines from scratch or improving existing client solutions
  • Awareness of security/cheating implications of technology choices
  • Experience using Gen AI for code generation

Nice to have

  • Deep expertise in at least one relevant area of backend technology, e.g. DevOps, Microservices, Cloud Architecture
  • Understanding of how a backend service integrates with the game - experience with Unreal or Unity would be useful but not required
  • An understanding of how to use LLMs to process and query structured and unstructured data

What we offer

  • Flexible working: Remote-friendly long before it was the norm, with core hours that support both great work and real life
  • Support & wellbeing: Mental health first-aiders, therapy and coaching via Myndup, plus private medical insurance to help you stay healthy and supported
  • Pension & life cover: A strong pension plan and life insurance to support your future and protect your family
  • Time for you: Minimum 25 days’ holiday, a paid winter break, and 3 volunteering days each year to give back to causes you care about
  • Parental leave: Family-first policies that support parents and caregivers with flexibility and balance
  • Levelling up: Annual L&D budget, expert talks, game jams, and mentoring opportunities to help you grow your skills and career
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