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EU remote

Flutter Tech Lead

EuropePosted 8 Oct 2026

Start a search — €9.99Apply on employer site

About this role

GR8_TECH builds B2B iGaming platforms for operators who play to lead. We deliver full-cycle, high-impact tech designed to scale — from seamless integrations and expert consulting to long-term operational support. Our platform powers millions of active players and drives real business growth. Call it what it is: the iGaming Platform for Champions. With 1000+ GR8 people across locations and time zones, we don’t just ship technology — we help operators build success stories across brands, markets, and geos.

Our ambition drives us. Our people make it real. If you’re a challenger in spirit and a champion in action — join us. WHY THIS ROLE EXISTS: This role exists to own and drive the frontend mobile architecture across our flagship products. You’ll help us scale real-time user experiences to millions of active users by delivering high-throughput, low-latency Flutter applications while elevating engineering standards across our development teams.

WHAT YOU’LL DRIVE: Strategy & outcomes - Own high-level mobile system architecture, defining patterns that keep our mobile apps stable, modular, and fast. - Translate business goals into robust technical blueprints, making clear decisions on system trade-offs. - Establish engineering benchmarks for app startup times, memory footprint, and frame rates. Discovery & decisions - Evaluate new mobile technologies, frameworks, and tools to solve complex scale problems before they impact production.

- Design and execute migration strategies (including native add-to-app integrations) to modernize legacy codebases seamlessly. - Define and enforce security baselines, including certificate pinning, obfuscation, and anti-tampering logic. Delivery & execution - Contribute hands-on code to critical, high-complexity systems and core framework libraries. - Lead incident response and root-cause analysis for high-severity mobile production issues.

- Optimize app performance, diagnosing UI/raster jank, memory leaks, and CPU-heavy operations using Dart Isolates. Stakeholder & cross-team alignment - Partner with Product Managers, Heads of Streams, and Team Leads to align technical roadmaps with product release schedules. - Standardize CI/CD pipelines, release automation (fastlane), and store submission processes across all mobile teams. - Align architectural patterns across cross-functional streams to prevent technical fragmentation.

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People & technical leadership - Mentor senior and mid-level engineers, running code reviews that raise the overall quality bar. - Support Team Leads in crafting technical Personal Development Plans (PDPs) for mobile engineers. - Drive engineering culture through technical write-ups, architecture reviews, and internal knowledge-sharing sessions. WHAT MAKES YOU A GR8 FIT: Must-have - 7+ years in commercial software development, with 3+ years dedicated to Flutter/Dart and hands-on experience in native iOS (Swift) or Android (Kotlin).

- Proven track record as a Founding Engineer, with hands-on experience designing and architecting large-scale, high-load Enterprise applications from scratch (beyond small-scale or multi-page apps). - Strong history of technical leadership, successfully driving complex mobile products through the full development lifecycle to production deployment. - Strong system design and architectural thinking, paired with deep mastery of Dart internals (isolates, async, null safety) and Flutter's rendering pipeline.

- Deep understanding of software engineering best practices, including state management (Bloc or Riverpod), testing (unit, widget, integration), and monorepos (Melos). - Proven ability to balance technical quality vs delivery speed, taking full ownership and accountability for technical decisions and outcomes. - Hands-on experience with high-frequency real-time data handling (WebSockets, long-lived connections, protobuf/JSON serialization) and mobile security standards.

- Effective technical communication skills across engineering and non-engineering stakeholders, with an ability to work smoothly in cross-functional environments (Product, Delivery, Ops). - Mentorship and people development mindset, with experience guiding engineers through code reviews, technical roadmaps, and personal development planning. - A verifiable portfolio of complex, production-grade applications, where you served as the Primary Architect or Tech Lead.

Nice-to-have - Hands-on experience with native add-to-app Flutter integration strategies and incremental migrations. - Experience building CMS-driven or Server-Driven UI frameworks. - Familiarity with dynamic localization, per-market feature toggles, deep linking at scale, and multi-jurisdictional app deployment. - Practical experience profiling mobile app performance (DevTools, Impeller engine, jank diagnosis, memory leak isolation).

- Familiarity with App Store / Google Play review requirements for gambling and betting applications. WHY YOU’LL LOVE WORKING HERE: Benefits Cafeteria — annual budget you allocate to: Sports • Medical • Mental health • Home office • Languages. Work-life & support - Paid maternity/paternity leave + monthly childcare allowance. - 20+ vacation days, unlimited sick leave, emergency time off. - Remote-first + tech support + coworking compensation.

- Team events (online/offline/offsite). - Learning culture with internal courses + growth programs. OUR CULTURE & CORE VALUES: GR8_TECH culture is how we win — through trust, ownership, and a growth mindset. We move fast, stay curious, and keep it real, with open feedback, room to experiment, and a team that’s got your back. FUELLED BY TRUST: we’re open, honest, and have each other’s backs. OWN YOUR GAME: we take initiative and own what we do.

ACCELER8: we move fast, focus smart, and keep it simple. CHALLENGE ACCEPTED: we grow through challenges and stay curious. BULLETPROOF: we’re resilient, ready, and always have a plan.

Source listing: ashby_gr8-tech

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