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.

Nice-to-have

- Hands-on experience with native