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Rothstein Recruitment
Senior Platform Engineer - AWS - Kubernetes - FinTech

Senior Platform Engineer - AWS - Kubernetes - FinTech

Hybrid

London, United kingdom

£ 150,000 /year

Senior

Full Time

09-02-2026

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Skills

Go Incident Response Kubernetes Monitoring Networking Architecture Programming AWS Terraform

Job Specifications

Senior Platform Engineer - AWS - Kubernetes - FinTech

Excellent opportunity opens for an experienced Senior Platform Engineer with extensive Kubernetes & AWS knowledge to join a rapidly growing FinTech in a crucial role. The successful candidate will be involved in building systems that demand the highest standards of reliability, security, and performance. We value engineering excellence, operational rigour, and a collaborative approach to solving hard problems.

Responsibilities and Duties

Core Responsibilities:

Design, build, and maintain our AWS-based Kubernetes platform running on EKS, ensuring high availability and security appropriate for financial infrastructure.
Develop and maintain infrastructure-as-code using Terraform across multiple environments.
Build and improve our GitOps-based deployment pipelines using ArgoCD and Argo Workflows.
Implement and maintain observability solutions (metrics, logging, tracing) to ensure platform reliability.
Collaborate with the wider engineering team to ensure our services are deployed securely and efficiently.
Contribute to platform security practices, including secrets management, network policies, and access controls.
Build, maintain and improve developer tooling.
Participate in our on-call rotation and incident response for platform-level issues.

Day-to-Day:

Reviewing and merging infrastructure PRs, collaborating with the wider engineering team
Troubleshooting Kubernetes workloads, service mesh routing, and cloud networking issues
Building and improving automation to reduce toil and improve developer experience
Participating in architecture discussions for new services and platform capabilities
Monitoring platform health, responding to alerts, and conducting post-incident reviews
Writing documentation and runbooks for operational procedures

How this Role Fits into the Bigger Picture:

This role reports to the Head of Platform Engineering and works closely with our backend engineering team. As a Senior Platform Engineer, you'll be a key contributor to the reliability, scalability and security of infrastructure that underpins critical financial market operations. Your work directly impacts our ability to deliver on the trust our clients place in us as a clearing house.

Required Skills

8+ years of experience in platform engineering, SRE, or infrastructure roles
Strong hands-on experience with Kubernetes (ideally EKS), Terraform, and AWS
Experience with service mesh technologies (Istio preferred) and GitOps workflows (ArgoCD preferred)
Proficiency in at least one programming language for tooling and automation (Go preferred)
Excellent troubleshooting skills and a systematic approach to incident response
Strong communicator who can work effectively with all parts of the business and explain technical decisions clearly

Interested? Please Apply!

About the Company

High-End Recruitment Agency specialising in Financial Services. Covering all areas of IT, Risk & Compliance, Business Change, Finance & Regulatory Recruitment and Executive Search. We are interested in talking to experienced recruiters to join us on an exciting phase of our evolution. Based in ‘state of the art’ offices in the City we are keen to talk to people who are looking for new opportunities. Discussions are confidential over a pint or coffee! Interested? Please drop us a message. Know more