Principal Backend Engineer

BL Principal Backend Engineer

Black Tree Gaming Limited
Salary: £80K – £90K per year
United Kingdom only

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Salary: £80,000 - £90,000
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. - 77M+ registered members
- 900K+ mods for 5,000+ 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 Principal Backend Engineer to join our Backend Engineering team. You will act as the technical lead within a cross functional pod building Nexus Mods’ core services.

This is a hands-on role focused on shaping technical decisions, guiding the pod’s engineering work, supporting the team technically, and ensuring delivery is robust, scalable, and aligned with our technical direction.

This is a chance to work on challenges most companies never encounter: - Massive scale serving millions of users and requests.
- Complex mod compatibility, dependencies, and versioning.
- A deeply engaged and passionate global modding community.

From discovery and experimentation to delivery and scale, you’ll play a key role in shaping systems that: - Help millions of gamers discover, download, and manage mods effortlessly.
- Empower creators to publish and manage their work with confidence.
- Power high traffic APIs and distributed systems at scale.
- Support both web and desktop applications.
- Enable rapid experimentation and iteration on new features.
- Ensure the platform evolves to support the next decade of growth.

Role Requirements
Requirements: - Extensive backend engineering experience, ideally with gaming or tech.
- Deep experience with at least one backend language (Ruby, PHP, Java, Go, Node.js, etc.)
- Strong system design and architecture skills.
- Experience building and scaling APIs (REST and/or GraphQL).
- Solid understanding of distributed systems and event driven architectures.
- Experience with relational databases (Postgres/MySQL) and NoSQL (Redis/ElasticSeach).
- Experience with CI/CD, Docker, and Kubernetes.
- Strong communication skills and ability to lead through influence.
- Comfortable balancing speed, quality, and pragmatism.

Bonus Skills: - Experience with authentication, payments, or search systems.
- Background in high scale platforms or UGC.
- Understanding of gaming ecosystems (e.g. multiplayer services, content distribution, or digital marketplaces).
- Experience building tools for creators, modding communities, or user-generated content platforms.
- Passion for gaming, modding, or creator ecosystems.

Role Responsibilities
- Own technical direction within your pod (architecture, design, tooling, trade-offs).
- Build and scale backend services and APIs serving millions of users.
- Ensure systems are performant, reliable, and maintainable.
- Align pod decisions with wider platform architecture.
- Support and unblock engineers to help teammates work efficiently.
- Collaborate closely with Product, Design, and other disciplines.
- Drive engineering standards across code quality, testing, and delivery.
- Contribute to discovery, prototyping, and iterative delivery.
- Identify and tackle technical debt and scalability challenges.

Benefits of Working at Nexus Mods
Benefits: - 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.

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About the job
Apply before
Nov 09, 2026
Posted on
Sep 10, 2026
Job type
Full Time
Experience level
Senior

Salary

Salary: £80K – £90K per year

Location requirements
Suggest an edit

United Kingdom

Hiring timezones
Show UTC offsets

United Kingdom +/- 0 hours

Job categories
Backend Engineering Principal Engineer Software Engineer Technology Leadership Backend Development Principal Backend Engineer Principal Backend Developer Senior Backend Engineering Backend Engineer Backend Engineering Lead Backend Platform Engineer Backend Infrastructure Engineer

Skills
Backend Engineering Go Ruby PHP Java Node System Design GraphQL Distributed Systems Event Driven Architecture MySQL Redis CI CD Docker Kubernetes REST APIs REST Architecture NodeJS

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About Black Tree Gaming Limited

Learn more about Black Tree Gaming Limited and their company culture.

View company profile

Apply now
Job expired?

Please let Black Tree Gaming Limited know you found this job on Himalayas. This helps us grow!
Apply now

About the job
Apply before
Nov 09, 2026
Posted on
Sep 10, 2026
Job type
Full Time
Experience level
Senior

Salary

Salary: £80K – £90K per year

Location requirements
Suggest an edit

United Kingdom

Hiring timezones
Show UTC offsets

United Kingdom +/- 0 hours

Job categories
Backend Engineering Principal Engineer Software Engineer Technology Leadership Backend Development Principal Backend Engineer Principal Backend Developer Senior Backend Engineering Backend Engineer Backend Engineering Lead Backend Platform Engineer Backend Infrastructure Engineer

Skills
Backend Engineering Go Ruby PHP Java Node System Design GraphQL Distributed Systems Event Driven Architecture MySQL Redis CI CD Docker Kubernetes REST APIs REST Architecture NodeJS

Browse similar jobs
Remote Senior Backend-Engineering Jobs Remote Full Time Backend-Engineering Jobs Remote Senior Backend-Engineering Jobs in United Kingdom Remote Full Time Jobs in United Kingdom Remote Backend-Engineering Jobs in United Kingdom

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