Senior Flutter Developer (freelance)

Stack

Responsibilities

• ▹Build and maintain Flutter apps that communicate with hardware peripherals over BLE
• ▹Write cross-platform code that behaves well on both iOS and Android
• ▹Take part in specifying, planning and estimating new modules and features
• ▹Improve reliability by chasing down the issues QA finds, including the weird ones
• ▹Review pull requests and give helpful feedback
• ▹Share knowledge: tech talks, internal docs, pair sessions
• ▹Work side by side with firmware engineers, designers, QA and PMs
• ▹Use AI tools as part of the daily workflow

Requirements

• ▹Strong commercial experience with the Flutter SDK
• ▹Advanced Dart skills, including state management and async patterns
• ▹Working knowledge of iOS and Android, enough to debug when the platform layer is the problem
• ▹Hands-on BLE experience, particularly with flutter_blue_plus or similar
• ▹English at B2+, written and spoken
• ▹Problem-solving mindset
• ▹High coding standards and willingness to align with the team's patterns
• ▹Initiative
• ▹Engagement and team play

Nice to have

• ▹Native iOS (Swift) or Android (Kotlin) experience
• ▹Previous IoT or connected device projects
• ▹Method channels and platform-specific plugin work
• ▹Scrum or other Agile delivery experience
• ▹Willingness to share publicly: hackathons, conferences, internal talks
• ▹Genuine curiosity about the devices you build for

Soft skills

What we offer

• ▹90-180 PLN/h net B2B, depending on experience
• ▹Truly flexible hours
• ▹Fully remote, with an optional pet-friendly Warsaw office and Gdansk coworking space
• ▹Internal knowledge-sharing: tech talks, experiments, side projects
• ▹After the first 3 months, a path to a permanent contract with a fixed monthly salary, 26 days paid leave, 10 sick days, Saltus medical care and a training budget
• ▹Technical buddy during onboarding

About the company

Intent has been designing and co-creating connected devices since 2008: wearables, smart audio and health-tech hardware for clients such as Oura and BOSE. A fully remote team of 60+ people, with most projects being long-term partnerships.