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- Tasks: Build a cutting-edge cross-platform app with a focus on security and performance.
- Company: Join a dynamic Series A startup with a collaborative culture.
- Benefits: Competitive daily rate, remote work, and potential for contract extension.
- Why this job: Make a real impact on innovative projects while solving challenging problems.
- Qualifications: 4+ years of Flutter experience and strong application security knowledge.
- Other info: Embrace diversity and enjoy excellent career growth opportunities.
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 technical interviews by brushing up on your Flutter knowledge and coding challenges. Practice explaining your thought process clearly, as communication is crucial in remote teams. We want to see how you tackle problems!
✨Tip Number 4
Apply through our website! It’s the best way to ensure your application gets seen. Plus, we’re always on the lookout for passionate engineers who are ready to dive into exciting projects like this one.
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 is tailored to the Senior Flutter Engineer role. Highlight your experience with Flutter, especially any projects that showcase your skills in security and performance. We want to see how you can contribute to our greenfield project!
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you're the perfect fit for this role. Mention your hands-on experience with OIDC/OAuth2 and any relevant projects you've worked on. Let us know what excites you about building enterprise-grade applications.
Showcase Your Projects: If you've got a portfolio or GitHub with examples of your work, make sure to include that in your application. We love seeing real-world applications of your skills, especially those that demonstrate your understanding of application security and testing frameworks.
Apply Through Our Website: We encourage you to apply through our website for a smoother process. It helps us keep track of your application and ensures you don’t miss out on any updates. Plus, we’re excited to see your application come through!
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 integrated secure APIs or worked on cross-functional teams, highlighting your communication skills in remote settings.
✨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. Bring examples of how you’ve driven best practices in these areas to ensure high-quality deliverables.
✨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 scenarios where you’ve applied them in your work. This will show that you’re not just knowledgeable but also practical in applying your skills.
