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For Companies Rate: £400–£600 per day (Outside IR35)
Duration: 6 months initially (extensions likely)
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.
At Pixelated People, we don’t just do inclusion and diversity. We embrace people that have different opinions, perspectives and personalities. Because we believe that by seeing the world from all sorts of angles, we can make life better for all the people who live in it. So we want you to know that the things that make you, you — like your age, ability, background and identity — are things that we celebrate and support.
📱 Senior Flutter Engineer - 6M Contract - Outside IR35 employer: Pixelated People
Contact Detail:
Pixelated People Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land 📱 Senior Flutter Engineer - 6M Contract - Outside IR35
✨Tip Number 1
Network like a pro! Reach out to your connections in the tech world, especially those who might know about opportunities at startups. A personal recommendation can make all the difference when you're aiming for that Senior Flutter Engineer role.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your best Flutter projects. Make sure to highlight any work related to security and performance, as these are key for the role. We love seeing what you can do!
✨Tip Number 3
Prepare for interviews by brushing up on your knowledge of application security and CI/CD practices. Be ready to discuss how you've implemented these in past projects. Confidence in your expertise will impress potential employers.
✨Tip Number 4
Apply through our website! It’s the easiest way to get your application noticed. Plus, we’re always on the lookout for talented engineers like you to join exciting projects. Don’t miss out!
We think you need these skills to ace 📱 Senior Flutter Engineer - 6M Contract - Outside IR35
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights your Flutter experience and any relevant projects you've worked on. We want to see how your skills align with the role, so don’t be shy about showcasing your achievements!
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you're excited about this opportunity and how your background makes you a perfect fit for our greenfield project. Keep it engaging and personal!
Showcase Your Technical Skills: Since this role focuses on security and performance, mention specific technologies and frameworks you’ve used. We love seeing hands-on experience with OIDC/OAuth2 and Flutter testing frameworks, so make sure to include those!
Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for this exciting opportunity. Don’t miss out!
How to prepare for a job interview at Pixelated People
✨Know Your Flutter Inside Out
Make sure you brush up on your Flutter skills before the interview. Be ready to discuss your past projects, especially those that involved building production-grade apps. Highlight your experience with testing frameworks and CI/CD processes, as these are crucial for the role.
✨Showcase Your Security Savvy
Given the emphasis on application security in this role, be prepared to talk about your knowledge of cryptography, secure data handling, and authentication methods like OIDC/OAuth2. Bring examples of how you've implemented these in previous projects to demonstrate your expertise.
✨Communicate Clearly and Collaboratively
Since this is a remote position, strong communication skills are key. Practice articulating your thoughts clearly and be ready to discuss how you’ve successfully collaborated with distributed teams in the past. This will show that you can thrive in their work environment.
✨Prepare Questions About the Project
Show your interest in the role by preparing thoughtful questions about the greenfield project and the technologies they’re using. Ask about their approach to security and performance, and how they envision the collaboration between frontend and backend engineers. This will demonstrate your enthusiasm and proactive mindset.
