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- Tasks: Build a cross-platform app from scratch with a focus on security and performance.
- Company: Join a dynamic Series A startup with a £20m funding boost.
- Benefits: Competitive daily rate, remote work, and potential for contract extension.
- Why this job: Make a real impact on innovative projects while working with cutting-edge technology.
- Qualifications: 4+ years of Flutter experience and strong application security knowledge.
- Other info: Collaborative environment that values diverse perspectives and offers excellent career growth.
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 applying for roles like the Senior Flutter Engineer position.
✨Tip Number 2
Show off your skills! If you’ve got a portfolio of apps or projects you've worked on, make sure to highlight them during interviews. Demonstrating your experience with Flutter and application security will really impress potential employers.
✨Tip Number 3
Prepare for technical interviews by brushing up on your knowledge of CI/CD processes and testing frameworks. Being able to discuss these topics confidently will show that you’re not just a coder, but a well-rounded engineer ready to tackle complex challenges.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love connecting with candidates who are passionate about building secure and reliable applications.
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 heavily on security and performance, make sure to mention any specific technologies or frameworks you’ve used. We love seeing hands-on experience with OIDC/OAuth2 and Flutter testing frameworks!
Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to keep track of your application and ensure it gets the attention it deserves. Plus, we can’t wait to hear from you!
How to prepare for a job interview at Pixelated People
✨Know Your Flutter Inside Out
Make sure you brush up on your Flutter knowledge before the interview. Be ready to discuss your experience with building production-grade apps, especially focusing on security and performance. They’ll want to hear about specific projects where you’ve implemented modular components or tackled complex problems.
✨Showcase Your Collaboration Skills
Since this role involves working closely with backend engineers, be prepared to talk about your experience in collaborative environments. Share examples of how you've successfully integrated secure APIs and worked in remote teams. Highlight your communication skills and how you ensure everyone is on the same page.
✨Demonstrate Your Testing Know-How
Familiarity with Flutter testing frameworks is key for this position. Be ready to discuss your approach to testing, CI/CD, and automated release processes. You might even want to bring up any best practices you’ve established in previous roles to show you’re proactive about quality.
✨Prepare for Technical Questions
Expect some technical questions around application security, cryptography, and authentication methods like OIDC/OAuth2. Brush up on these topics and think of real-world scenarios where you applied these concepts. This will show that you not only understand the theory but can also apply it effectively.
