Flutter Tech Lead

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. 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). - 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.