Lead Flutter Engineer

About Block Labs

Block Labs is a leading force in the Web3 space, incubating, investing in, and accelerating top-tier fintech, crypto, and iGamingprojects. With a mission to shape the future of decentralized technology, we partner with visionary startups to raise funding, refine product-market fit, and grow their audiences.

As we continue to expand, we are looking for an ambitious and self-drivenindividual to join our rapidly growing team!

About The Role

We are seeking a Lead Flutter Engineer, to drive the development of a next-generation Web3-native mobile application. You will define the technical vision, design the architecture, and mentor engineers while ensuring the product is secure, scalable, and user-friendly. This role blends hands-on coding with architectural ownership, leadership, and close collaboration with product and design teams.

Key Responsibilities:

• Architect and own the system design, technical roadmap, and overall delivery of the app.
• Lead and mentor a cross-functional engineering squad, setting coding standards and best practices.
• Contribute to development in Flutter/Dart while guiding quality and scalability.
• Design modular systems with theming, multi-language, and OTA update capabilities.
• Oversee integrations with backend services, blockchain protocols, and secure key management.
• Ensure security, compliance, and high performance across all features.
• Partner with product and design to align technical execution with strategic goals.
• Translate analytics and user feedback into iterative improvements and innovation.

About You:

• 7+ years of software engineering experience, including 2+ years in a Flutter leadership or architect role.
• Strong expertise in Flutter/Dart, with a proven track record of shipping consumer-grade mobile apps.
• Experience designing and scaling secure mobile systems (biometrics, encrypted storage, recovery flows).
• Solid understanding of blockchain, Web3, DeFi, or fintech systems.
• Skilled in modular architecture and resilient system design.
• Excellent communicator with experience mentoring and growing engineering teams.
• Passionate about decentralization, security, and building products that empower users globally.

What kind of culture can I expect?
Mature, mission-driven, and low-ego. We value clarity over noise, outcomes over theatrics, and pace without chaos. If you’re one of the smartest minds in your craft and want to build with other experts, you’ll feel at home here.