Founding Engineer (Flutter)
Founding Engineer (Flutter) who owns mobile architecture for GR8_TECH's B2B iGaming platform — designing high-load, low-latency Flutter apps, driving migrations and security baselines, optimizing performance, and mentoring engineers. Requires 7+ years in software development with 3+ years in Flutter/Dart plus native Swift or Kotlin.
- Compensation
- Not disclosed
- Location
- Europe
- Work setup
- Remote
- Seniority
- Lead
- Employment
- Not specified
- Experience
- 3+ years
- Category
- Software engineering
- Posted
Skills
Must have
- 7+ years commercial software development, with 3+ years dedicated to Flutter/Dart and hands-on native iOS (Swift) or Android (Kotlin) experience
- Proven track record as a Founding Engineer, designing and architecting large-scale, high-load Enterprise applications from scratch
- Strong history of technical leadership, driving complex mobile products through the full development lifecycle to production deployment
- Strong system design and architectural thinking, with deep mastery of Dart internals (isolates, async, null safety) and Flutter's rendering pipeline
- Deep understanding of best practices: state management (Bloc or Riverpod), testing (unit, widget, integration), and monorepos (Melos)
- Ability to balance technical quality vs delivery speed, with 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 across engineering and non-engineering stakeholders in cross-functional environments
- Mentorship and people development mindset, including guiding engineers through code reviews, technical roadmaps, and personal development planning
- Verifiable portfolio of complex, production-grade applications where you served as 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
Full description
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.