Senior Flutter Developer - 6 month FTC

Sky UK; Isleworth; Hybrid; GBP 50,000 - 80,000; Full time

Job summary

A leading telecommunications company in the UK is seeking a Senior Flutter Developer to create high-fidelity prototypes for Android and iOS. Candidates should have extensive experience in Flutter and Dart, with skills in UI/UX implementation and a background in publishing apps. The position encourages hybrid working, demanding collaboration while also allowing flexibility. Ideal for those who enjoy innovative work in a dynamic tech environment.

Benefits

Private healthcare

Generous pension package

Discounted mobile and broadband

Sky Q and Sky Glass at exclusive rates

Wide range of Sky VIP rewards

Qualifications

• Expert-level knowledge of Flutter 3 applied in a commercial product.
• Strong understanding of Flutter architecture and state management.
• Experience with iOS App Clips development.
• Proven track record publishing apps to the App Store.
• Knowledge of device discovery protocols.
• Strong UI/UX skills converting designs into prototypes.
• Ability to present technical decisions clearly.

Responsibilities

• Build and deploy high-fidelity prototypes using Flutter.
• Architect Flutter codebases for maintainable structure.
• Collaborate closely with peers on user flows.
• Present prototypes to senior stakeholders.

Skills

Expert-level knowledge of Flutter 3

Understanding of Flutter architecture

Experience developing iOS App Clips

Publishing apps via TestFlight

Knowledge of WebRTC

Solid understanding of HTML, JavaScript, CSS

Strong UI/UX implementation skills

Ability to present work to stakeholders

Tools

Flutter

Dart

Job description

Responsibilities

• Independently build, publish and deploy high‑fidelity prototypes built with Flutter for Android and iOS.
• Architect Flutter codebases for rapid prototyping with a clean, maintainable structure.
• Collaborate closely with peers to refine user flows and validate ideas.
• Present and demo prototypes to senior stakeholders and internal teams.
• Work in a hybrid setup, ideally onsite at least two days per week for device testing and team collaboration.

We're looking for a Senior Flutter Developer with strong hands‑on mobile application development experience. You will take wireframes and technical requirements and turn them into polished prototypes that demonstrate the potential of future product ideas, with Flutter as your primary tool for delivery.

Qualifications

• Expert‑level knowledge of Flutter 3 and Dart 3, applied in a commercial product or project within the past 12 months.
• Strong understanding of Flutter architecture and state management (BLoC, Provider, Riverpod).
• Experience developing iOS App Clips using Flutter.
• Proven track record publishing apps via TestFlight and Google Play Console.
• Knowledge of WebRTC and device discovery protocols (DIAL, Bluetooth discovery, mDNS, network‑based scanning).
• Solid understanding of core web technologies: HTML, JavaScript, CSS.
• Strong UI/UX implementation skills, with experience converting static designs into functional prototypes in collaboration with designers.
• Ability to clearly present work to stakeholders, explain technical decisions, and adapt quickly to changing requirements and new technologies.

Nice‑to‑have skills

• Modern JavaScript/TypeScript frameworks (React, Next.js, SolidJS).
• Native iOS/Android development (Swift, Kotlin).
• Cloud services (AWS).
• 3D/real‑time frameworks (WebGL, Three.js, Unity).
• AI/ML concepts (LLM, MCP).
• Hardware prototyping (electronics, 3D printing, CAD).

About the Team & Culture

Working in Tech, Product or Data at Sky is about building the next and the new. From broadband to broadcast, streaming to mobile, Sky Q to Sky Glass, we never stand still. We optimise and innovate. We're a small, multi‑disciplinary team of engineers within Global Design Engineering, exploring future product experiences for Sky and Comcast. We create high‑fidelity prototypes that shape the product roadmap, from next‑generation mobile apps and TV interfaces to hardware concepts and AI‑driven interactions. Each project lasts a few months, giving us the freedom to explore new ideas, technologies and interaction models without being tied to long product cycles.

If you love variety, creative problem‑solving, and turning ideas into tangible, working experiences, you'll fit right in.

Benefits

• Sky Q – the TV you love, all in one place.
• The magic of Sky Glass at an exclusive rate.
• A generous pension package.
• Private healthcare.
• Discounted mobile and broadband.
• A wide range of Sky VIP rewards and experiences.

Inclusion & How You'll Work

We are a Disability Confident Employer, and welcome and encourage applications from all candidates. We will look to ensure a fair and consistent experience for all, and will make reasonable adjustments to support you where appropriate. Please flag any adjustments you need to your recruiter as early as you can. We've embraced hybrid working and split our time between unique office spaces and the convenience of working from home. You'll find out more about what hybrid working looks like for your role later on in the recruitment process. Your office space Osterley Our Osterley Campus is a 10‑minute walk from Syon Lane train station. Or you can hop on one of our free shuttle buses that run to and from Osterley, Gunnersbury, Ealing Broadway and South Ealing tube stations. There are also plenty of bike shelters and showers. On campus, you'll find 13 subsidised restaurants, cafes, and a Waitrose. You can keep in shape at our subsidised gym, catch the latest shows and movies at our cinema, get your car washed, and even get pampered at our beauty salon. We'd love to hear from you.

Inventive, forward‑thinking minds come together to work in Tech, Product and Data at Sky. It's a place where you can explore what if, how far, and what next. But better doesn't stop at what we do, it's how we do it, too. We embrace each other's differences. We support our community and contribute to a sustainable future for our business and the planet. If you believe in better, we'll back you all the way. Just so you know: if your application is successful, we'll ask you to complete a criminal record check. And depending on the role you have applied for and the nature of any convictions you may have, we might have to withdraw the offer.