📱 Senior Flutter Engineer (Contract)
💰 Rate: £400–£600 per day (Outside IR35)
⏱️Duration: 6 months initially (extensions likely)
đź“Ť Location: Remote first with occasional visits to central London office (no more than 1 or 2 times per month for workshops)
We are working with a Series A startup that recently secured a £20m round. They are looking for 2 x exceptional Flutter Engineers to join a high-impact, greenfield project. This is an opportunity to build an enterprise-grade, cross-platform application from the ground up — with a strong emphasis on security, performance, and reliability.
🥳 What You’ll Do
* Architect and implement high-quality, modular Flutter components for a real-time coordination platform.
* Drive best practices in testing, CI/CD, and automated release processes.
* Collaborate with backend engineers to integrate secure APIs and encrypted data flows.
* Apply advanced concepts in application security, encryption, and authentication.
* Contribute to defining a scalable, test-driven frontend architecture used across multiple device types.
🧠What You’ll Bring
* 4+ years of professional Flutter experience (7+ in mobile engineering overall).
* Proven delivery of production-grade apps at scale.
* Strong grasp of application security, cryptography, and secure data handling.
* Hands-on experience with OIDC / OAuth2 authentication.
* Deep knowledge of Flutter testing frameworks, CI/CD, and modern state management (e.g. BLoC, Signals, Riverpod).
* Excellent communication and collaboration skills in remote/distributed teams.
👍🏼 Bonus Points
* Experience with secure messaging, E2EE, or federated communication systems.
* Knowledge of the Matrix protocol or similar frameworks.
* Familiarity with Flutter FFI or writing SDKs/libraries.
This is a contract for engineers who thrive on solving hard problems — where security, design excellence, and real-world impact all meet.
🤩 Sounds like fun? Click apply and I'll reach out to discuss further.
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