Senior Full stack Developer
Confirmed on the employer's own hiring board on Oct 21, 2026. First seen by Alion on Oct 19, 2026.
3 Month contract with possibility of extension.
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
Tracsis Rail Safety develops software solutions that help rail organisations plan, manage and deliver safety-critical work across the railway network.
Our products are used to improve worker safety, streamline operational processes, and support compliance within a highly regulated industry. As a Senior Software Developer, you will play a key role in designing, developing, testing and delivering high-quality software solutions that support these safety-critical systems.
You'll work as part of a collaborative engineering team, helping to build scalable, secure and reliable applications that make a real-world impact across the rail industry.
What you will do
- Design, develop and maintain software applications and services.
- Write clean, efficient and maintainable code.
- Build and support CI/CD pipelines and deployment processes.
- Develop robust, secure, scalable and high-performing solutions.
- Troubleshoot defects, incidents and performance issues.
- Analyse complex problems and deliver effective technical solutions.
- Collaborate with stakeholders to understand requirements and provide technical input.
- Develop and maintain automated unit, integration and system tests.
- Create technical documentation and maintain knowledge-sharing resources.
- Contribute to the ongoing development and improvement of Tracsis Rail Safety product
What you'll bring:
- Strong commercial experience with PHP and React.
- Experience with automated testing frameworks such as PHPUnit, Playwright, Cypress, Jest or PACT.
- Code management using Git-based version control systems (e.g. GitLab).
- Experience working within Agile software development teams.
- Strong understanding of software engineering principles, design patterns and best practices.
Desirable Skills:
- Java development experience.
- Experience working with relational and non-relational databases.
- Observability tooling such as New Relic, ELK, Grafana or similar.
- Cloud-native technologies including AWS, Docker, Kubernetes and Terraform.
- Microservices and API design.
- Experience working within regulated or safety-critical environments.
Benefits:
- Flexible working hours to support work-life balance
- 25 days holiday + bank holidays
- Competitive salary
- Udemy Licence for learning and development
- Bupa Medical Health care
- Life assurance (3x basic salary)
- Enhanced Parental Leave
- 2 volunteering days per year
- Tusker Car Scheme
- Cycle to work scheme
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 60-90 minutes
- Behavioural-based interview 30-45 minutes
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.