Flutter Engineer (Contract)

Salary: £61,000 - 101,000 per year

Requirements:

• Demonstrated experience deploying Dart and Flutter interfaces on embedded Linux setups (flutter-auto), alongside familiarity with fixed touchscreen layouts, virtual keypads, and systemd service managers
• Deep practical knowledge of flutter_bloc, Cubit, and provider architectural patterns, utilizing sealed classes, pattern matching, and stream regulation techniques
• Proven background building socket connections to process size-prefixed FlatBuffers packets over local TCP networks
• Strong capability creating performant CustomPainter charts for high-frequency data streams designed to minimize memory allocation overhead
• Comprehensive understanding of flutter localizations, ARB files, and timezone-aware component rendering
• Strong track record in unit, widget, screenshot, and regression testing, reaching full coverage metrics across safety-critical modules
• Experience with continuous integration, detailed peer reviews, structured inline documentation, and clear requirement mapping
• Familiarity with medical technology environments or regulatory quality frameworks
• Working knowledge of C++ for reviewing protocol definitions and defining service interfaces
• Comfort translating Figma designs and contributing toward software risk evaluations (FMEA)

Responsibilities:

• Construct guided setup workflows, patient ID workflows, sensor lifecycle tracking, data quality thresholds, subsystem monitoring screens, and embedded guidance tools
• Deliver real-time metric displays, interactive timeline graphs, target value baselines, motion metric indicators, historic data visualization, and clinical notation features
• Build prioritized alert views on the primary screen, silence controls, customizable limit ranges, and status message panels
• Develop screens for system boot, permissions routing, loss-of-signal alerts, time-zone settings, pause states, discharge workflows, shutdown routines, service utilities, and data export functions
• Own a self-contained area of the application from initial design through to merged, tested, and documented code
• Work closely with the Software Architect and engineers responsible for surrounding components while taking ownership of delivery within your area

Technologies:

• AI
• Architect
• Backend
• Dart
• Embedded
• Figma
• Flutter
• Linux
• Mobile

More:

We are AND Digital, partnering with hackajob to hire for this contract Flutter Engineer role. We are on a mission to close the worlds tech skills gap by helping organisations navigate the future of technology with human expertise, emerging tech, and AI to deliver better outcomes, faster. Since 2014, we have worked with clients to solve complex challenges, build high-performing teams, and create lasting capability. We are now over 1,300 people across the UK, Europe, and the USA, with ambitious plans for continued growth. This is an immediate start 12-week contract based in London, with 2 to 3 days onsite in Kings Cross, working on a highly regulated, safety-critical medical technology product within an in-house backend engineering team.

last updated 39 week of 2026