Flutter Developer
Confirmed on the employer's own hiring board on Oct 5, 2026. First seen by Alion on Sep 4, 2026.
Remote UK
Our talented people are creating the technology of the future.
From scheduling to maintenance to keeping people safe, 2.7 million people are helped by our software daily. Technology makes it possible; people make it happen and you could be part of that.
The Tracsis Group has grown rapidly, diversifying into related transport technologies, and successfully executing a strategy that has seen it make a total of seventeen acquisitions.
Today Tracsis is a leading provider of software, hardware, data analytics/GIS and services for the rail, traffic data and wider transport industries. The Group has c.550 permanent employees serving its growing customer base from offices in the UK, Ireland and the US.
The Role
We are seeking an experienced Flutter Developer to lead the end-to-end development of sophisticated, cross-platform mobile applications. As a key contractor on our team, you will build performant, highly scalable features for both iOS and Android, taking full ownership of the mobile lifecycle from UI/UX translation to app store release.
What you will do
- Application Development: Architect and build sophisticated, highly scalable applications using Flutter and Dart, ensuring seamless performance across various iOS and Android screen resolutions and constraints.
- Architecture & Clean Code: Write maintainable, well-structured, and efficient code while establishing comprehensive automated unit, widget, and end-to-end test suites.
- Cross-Functional Collaboration: Partner directly with backend engineers and product managers to define technical requirements, design features, and deliver stable releases.
- UI/UX Implementation: Translate complex UI/UX designs into smooth and responsive mobile interfaces.
- Optimization & Maintenance: Identify bottlenecks, resolve bugs, and optimize app execution for high performance and low latency.
- Full Delivery: Oversee the entire development lifecycle
What you'll bring:
- Proven background as a Mobile Engineer with deep expertise in Flutter and Dart.
- Demonstrable experience integrating modern AI tooling directly into mobile workflows to streamline Flutter development, code generation, or testing.
- Strong familiarity with continuous integration, unit testing, widget testing, and end-to-end testing frameworks.
- Excellent communication skills for seamless collaboration with product and backend teams
3 month contract with possibility of extension.
Outside IR35
Our values: We’re guided by four core values that shape how we work and collaborate: Progression - continually improving and developing. Integrity - doing the right thing, always. Collaboration - working together to achieve more. Ownership - taking responsibility and delivering with accountability
Next Steps
Our TA team are committed to responding to all candidates within a reasonable timeframe.
The process:
- Call with our Talent Acquisition Team
- Technical Interview
Our process is designed for us to understand your skills and experience and to give you the opportunity to find out more about the role, as well as the company.
We are committed to building a diverse workforce. Even if you do not tick all the boxes, we would still love to hear from you! If you require any adjustments or additional support during the application and interview process do not hesitate to get in touch.