Senior Platform Engineer - AWS
Confirmed on the employer's own hiring board on Oct 6, 2026. First seen by Alion on Oct 1, 2026.
Remote - With visits to Leeds office
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're looking for an experienced Senior Platform Engineer to help design, build and operate our AWS-based platform. As a senior technical contributor within our Platform Engineering function, you'll play a key role in shaping the capabilities that underpin our strategic objectives across Developer Experience, Service Reliability, and Business Agility.
You’ll work primarily with AWS (EKS), alongside the CNCF ecosystem, Istio service mesh, ArgoCD, Terraform & Crossplane, and GitLab CI/CD. Experience with GKE or Azure is a plus. You’ll need solid skills in at least one modern language (Python, Go, Java or C#) and strong Linux administration.
Key technologies:
Observability: Grafana stack, Thanos, Loki, Tempo, Jaeger
Security: HashiCorp Vault, IAM, policy-as-code
FinOps and cost optimisation
What you will do
- Design, build and support secure, scalable and reliable platform capabilities across AWS
- Develop and improve self-service tooling that enables engineering teams to deliver software more efficiently
- Work with Kubernetes and cloud-native technologies to enhance our Internal Developer Platform
- Support platform reliability, observability and operational excellence across production environments
- Collaborate closely with development teams to improve developer experience and remove delivery bottlenecks
- Drive the adoption of Infrastructure as Code, automation and platform engineering best practices
- Contribute to platform architecture and technical decisions, helping to shape future platform capabilities
- Troubleshoot complex platform issues and support incident resolution when required
- Share knowledge, mentor engineers and help raise technical standards across the team
What you'll bring:
- Strong experience in Platform Engineering, Site Reliability Engineering (SRE) or DevOps roles within cloud-native environments
- Proven production experience with EKS, Istio service mesh and GitOps, with exposure to GKE and/or Azure environments
- Hands-on expertise with Terraform, Crossplane and GitLab CI/CD
- Strong Linux administration skills and experience building self-service platform capabilities at scale
- Good understanding of security, including Vault and IAM, alongside observability tooling such as Grafana, Thanos, Loki, Tempo and Jaeger
- Experience supporting production platforms, including incident response and operational ownership
- A pragmatic engineering mindset with a strong sense of ownership, a passion for automation, and the ability to positively influence and mentor others
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
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.
- Intro call with Talent Team
- Technical Interview
- Behavioural 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.