• Own the game’s architecture and technical direction; make the major technical calls and bring the team in where it matters. You define which decisions you own, delegate, or take to the team - and you are accountable for the outcome, not for making every call alone.
• Match engineering investment to risk - keep routine content, tuning and config changes cheap and fast to ship, and know when something touching live data, economy or player accounts warrants full production rigour.
• Uphold engineering standards, code quality, and performance; stay hands-on in complex or high-impact work, often on the systems where a mistake reaches players fastest.
• Set the architecture and standards the game will be operated on for years so growth in players, content, and team size doesn't mean rebuilding.

People Leadership & Team Development

• Manage, lead, and develop the engineering team, being accountable for their performance, growth, and clarity of ownership.
• Run regular 1:1s and give kind, direct, actionable feedback; support career-progression conversations and development planning.
• Set clear expectations, address performance concerns early and constructively, and grow engineers who can make strong calls without you. Your impact is measured by the team’s effectiveness, not only your own output.

Delivery & Outcome Accountability

• Break large initiatives into clear, parallelisable deliverables; identify critical-path risks early and communicate trade-offs.
• Partner with Product/Design and Production to align on scope and feasibility.
• Improve processes, tooling, and automation to reduce last-minute heroics; protect both delivery predictability and team sustainability.
• Instrument features so their effect on player behaviour and product metrics is visible quickly, and so regressions surface in hours rather than weeks.

Technical Craft & Live Operations

• Build and evolve the gameplay and live-service systems behind the game - features shipped behind flags, released incrementally, and rollback-able when they misbehave.
• Own the health of the running game: telemetry, alerting, and on-call practice that surface problems before players report them, and blameless diagnosis when they don't.
• Apply AI tooling to accelerate day-to-day engineering, live-ops workflows, and content pipelines (e.g., code generation, internal tools, automated checks).

Collaboration & Stakeholder Impact

• Represent Engineering in cross-functional discussions; communicate technical constraints and trade-offs clearly to non-technical stakeholders.
• Raise risks early; encourage healthy debate while ensuring decisions are made; foster trust through clarity, transparency, and follow-through.
• Work closely with the Head of Technology to shape engineering standards and technical strategy across the studio, connecting the team's work to the bigger technical picture.
• Own the New Game Project’s technical roadmap - where the stack needs to evolve, what debt gets paid down, and what platform and tooling investment the game needs to keep scaling - then lead the team that delivers it.

About You

• Extensive experience within F2P mobile games, including at least one title you helped ship and operate live.
• Track record of shipping into a live game on a regular cadence without destabilising what is already running - release process, feature flags, migrations, rollback.
• Experience leading and developing engineers (including Senior Engineers) - running 1:1s, owning performance, and supporting growth.
• Hands-on experience applying AI tools to real engineering work - code, tests, tooling, and content pipelines - not just experiments.
• Familiarity with, and curiosity about, web and backend technologies - the internal tools, dashboards, and services that make a live game operable day-to-day.
• Strong architectural understanding and systems thinking; strong grasp of CI/CD, testing strategy, performance, and scalability.
• Demonstrable depth in the core stack: engine/runtime Unity / C#, gameplay/client architecture, and profiling/optimisation.
• Working knowledge of the server side of a live game - backend services, live-ops configuration, economy and telemetry data - enough to own the end-to-end behaviour of a feature, hold a sensible architecture conversation with backend specialists, and judge where the risk really sits.
• Comfort operating in a live environment where priorities shift with player data and incidents don't wait for sprint boundaries.

At Trailmix, we care as much about how you work as what you deliver. We believe that when people feel safe, inspired, and proud of what they do, that passion flows directly into how we work with one another, our games, and ultimately, our players feel it.

That means we’re looking for someone who:

• Builds impact through collaboration: you know the best work comes from shared perspectives and collective wins.
• Grows stronger through challenges: you adapt, stay positive, and help others find a way forward when things get messy.
• Keeps players at the heart of decisions: you design, create, and problem-solve with empathy, knowing players are our why.
• Communicates with clarity and care: you give feedback that builds trust, and you listen openly so ideas can flourish.
• Stays curious and lifts others up: you experiment, learn quickly, and share your discoveries generously, raising the bar for the whole team.
• Moves with courage and ownership: you make bold calls when it matters, and you stand by them with accountability.

Together, our values and the behaviours don’t just describe how you’ll succeed here - they’re how we create authentic games that players love, built by people who flourish.

Our London Studio Location

Our hybrid work model combines the flexibility of remote work with the creative energy of being together in person.

We work from our Kings Cross studio together three days a week — Monday, Thursday, and Friday, because we believe great games (and great teams) are built through genuine collaboration.

This rhythm helps us deliver our best work not just for each other, but for our players. It’s how we build momentum, grow together, and stay ahead in a fast-moving industry.