Lead Game Developer (Unreal Engine / Unity)

BFB Labs; Greater London; Hybrid; GBP 50,000 - 60,000; Full time

Benefits offered by this job

28 days annual leave

Extra 3 discretionary days at year end

Company pension

Remote work up to one week twice aYear

Job summary

BFB Labs in London develops digital health products and evidence-based games, including Lumi Nova, to help youth manage mental health. We seek a Lead Game Developer to shape technical architecture, drive delivery across app stores, and balance new features with fixes for stability and engagement.

You will lead front-end and back-end game development, collaborate with a Full-Stack developer, and mentor a mid-level engineer to uphold robust coding standards.

Qualifications

• 3+ years in a Senior/Lead Game Developer role with mentoring experience.
• Advanced proficiency in Unreal Engine with C++ and Blueprints.
• Experience with Unity (C#) and cross-engine work as needed.
• Proven ability to release games on iOS/Android/Amazon environments.
• Hands-on with CI/CD, Jenkins, and multi-repo workflows.
• Strong collaboration with backend teams for data integration and analytics.

Responsibilities

• Lead end-to-end client and server-side game feature development across iOS, Android, and tablets.
• Own architecture, coding standards, PR reviews, and mentor mid-level developers.
• Collaborate with Full-Stack team to integrate APIs and analytics routing.
• Manage automated builds across Jenkins, GitHub, Bitbucket, Plastic SCM, Jira.
• Oversee App Store submissions for Apple, Google, and Amazon stores.
• Optimize performance, memory management, and device profiling across devices.

Skills

Senior Leadership

Unreal Engine

C++

Blueprints

Unity (C#)

Mobile deployment

App Store submission

CI/CD

Version control

Full-Stack data integration

Tools

Unreal Engine

Unity

Jenkins

Plastic SCM

GitHub

Bitbucket

Jira

AWS

Job description

Location: Hybrid/Remote, London

Employment Type: Full-time, Permanent

Company: BFB Labs

Lead Game Developer (Unreal Engine & Unity)

Location: Hybrid/Remote, London

Employment Type: Full-time, Permanent

Company: BFB Labs

About BFB Labs

At BFB Labs, we build pioneering digital health products and evidence-based games that transform youth mental health. Our flagship app, Lumi Nova, along with our wider portfolio, blends engaging gameplay with clinical efficacy to empower children and young people to self manage their mental health. We are looking for an experienced Lead Game Developer to shape our technical architecture, drive continuous delivery across app stores, and keep our apps stable and performant—balancing new feature development with bug fixes to continuously improve stability, player engagement, and clinical outcomes.

The Role

As our Lead Game Developer, you will sit at the heart of our technical execution. You will drive front-end and back-end game development, lead app store release pipelines across multiple platforms, and partner closely with our Full-Stack developer to integrate secure analytics and cloud architecture.

Beyond hands‑on development, you will serve as a technical mentor for our mid-level developer, establishing robust coding standards, conducting peer reviews, and ensuring our therapeutic mobile apps are optimised, maintainable, and technically robust.

Key Responsibilities

• Core Game Development: Lead end-to-end client and server-side game feature development across iOS, Android, and tablet platforms.
• Architecture & Mentorship: Own codebase architecture, enforce high-quality coding standards, conduct constructive PR reviews, and actively mentor mid-level game developers.
• Cross-Functional Collaboration: Partner with our Full-Stack Developer to connect front-end game loops with our AWS backend architecture, securing data persistence and analytics routing.
• Release & Build Pipeline Management: Maintain and optimise our automated build pipelines across Jenkins, GitHub, Bitbucket, Plastic SCM, and Jira.
• App Store Submissions: Oversee the submission lifecycle, compliance checks, and updates for the Apple App Store, Google Play Store, and Amazon Appstore.
• Optimisation & Performance: Drive best practices for device profiling, memory management, frame-rate stabilisation, and performance across diverse mobile hardware profiles.

Required Skills & Experience

• Senior Leadership: 3+ years of experience in a Senior or Lead Game Developer role, with a proven track record of managing and mentoring other engineers.
• Primary Engine Expertise (Unreal Engine): Advanced proficiency in Unreal Engine, including deep hands‑on expertise with both C++ and Blueprints (vital for our flagship project, Lumi Nova).
• Secondary Engine Flexibility: Familiarity with Unity (C#) and a strong willingness and ability to jump between both engines as project needs evolve.
• Mobile & Tablet Deployment: Extensive experience building, profiling, optimising, and releasing commercial games on iOS, Android, and Amazon mobile environments.
• App Store Mastery: Up‑to‑date knowledge of current guidelines, submission workflows, and technical policies for Apple, Google, and Amazon stores.
• Version Control & CI/CD: Hands‑on experience working with Plastic SCM, Git/GitHub/Bitbucket, Jira, and configuring automated builds with Jenkins.
• Full‑Stack & Data Integration: Proven ability to work alongside backend teams to integrate APIs, save data states, and route gameplay analytics.

Nice‑to‑Haves

• Experience designing accessible UI/UX systems (e.g., screen reader compatibility, colorblind accessibility, customisable UI scales).
• Experience with automated unit testing frameworks within Unreal Engine or Unity.

What We Offer

• Salary: £50,000 – £60,000 per annum (Dependent on experience)
• Purpose‑Driven Work: The code you write and oversee will directly support young people going through clinical mental health pathways.
• Great Perks:
• - 28 days of annual leave (plus bank holidays) which we usually top off with a discretionary extra 3 days off over the Christmas period so you can fully recharge.
• - 1 extra day annual leave for every year you're with us (up to 5 additional days).
• - Access to the company pension scheme
• - Flexibility to work remotely for up to one week twice a year (taken as separate sessions)

Hybrid Flexibility

• Hybrid Flexibility: Work from our fantastic co‑working space in Farringdon (Central London) 3 days a week, with the remainder remote. We value flexibility and are open to discussing individual productive arrangements.
• A Vibrant Culture: Join a diverse, inclusive, and multi-award‑winning team during an exciting early‑stage growth phase.

We are looking for the right person to start ASAP.

Applications will be reviewed on a rolling basis.

Our Interview Process

• Screening: An initial call via Google Meet to ensure a mutual fit.
• Technical Task: A practical exercise designed to let your engineering logic shine.
• In‑Person Interview: A final interview held at our Farringdon office space.

We maintain a strict and high level of confidentiality for all applicants.