Senior Platform Developer with AWS, Cloud Platform
First seen by Alion on Sep 30, 2026.
Technology stack
AWS, EKS, ECS, Kubernetes, Docker, Helm, Terraform, GitHub Actions, OpenTelemetry, Honeycomb, Datadog, Claude, ChatGPT
Client
Our client is a financial services company developing secure digital banking and retail finance platforms.
Join a great company, not merely an individual project
Project overview
You will contribute to a transformation from team operated infrastructure toward a platform with clear self service capabilities. The project is centered on reliability, security, observability, resilience, and maintainable engineering practices for business critical services.
Team
Medium team (10-20 people)
You will work with a cross-functional platform team collaborating. The team partners closely with application engineers and supports shared ownership through collaborative delivery and an on-call rota.
Position overview
We are looking for an experienced Platform Engineer to support the existing AWS infrastructure and contribute to its ongoing modernisation and consolidation.
The role combines hands-on cloud engineering with developer enablement. You should understand Platform Engineering as a product discipline and be able to discuss developer experience, self-service, platform adoption, reliability, and technical trade-offs.
The working schedule is aligned with UK business hours, from 9:00 AM to 5:30 PM UK time. Participation in an on-call rota may be required.
This position includes a sign-in bonus.
Responsibilities
Design and evolve reliable cloud platform capabilities for engineering teams.
Improve AWS, Kubernetes, Terraform, CI/CD, monitoring and operational patterns.
Partner with engineers to understand needs and make safe, maintainable choices.
Take ownership of work from problem definition through delivery and learning.
Strengthen observability, resilience, security and incident readiness.
Help build reusable tooling, guardrails and self-service foundations.
Participate in incident response, communication, post-incident reviews, and completion of corrective actions.
Participate in an on-call rota when required.
Requirements
Strong hands-on AWS platform engineering experience in production environments.
Practical Kubernetes/EKS, Docker, Terraform and Helm experience.
Strong CI/CD experience, particularly GitHub Actions, and reusable-pipeline thinking.
Experience with logging and monitoring, networking and protocols, scripting, secrets management and service discovery.
Exposure to both AWS and Kubernetes, with sound coding experience.
Evidence of designing secure, reliable and maintainable platform solutions.
Autonomous delivery and constructive collaboration with application engineers.
Experience supporting business-critical services through an on-call rota.
Experience with at least one programming or scripting language.
Nice to have
Experience with Honeycomb, OpenTelemetry , Prometheus, Splunk , including SLO-led practices.
Pragmatic use of AI-assisted engineering tools to improve quality and productivity