Senior Platform DevOps Engineer - CI/CD, Kubernetes, Scale

Selby Jennings; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

Selby Jennings partners with a world-leading hedge fund to recruit a Senior DevOps Engineer for the Platform Engineering team in London. You will design, build, and maintain internal developer platforms, from scalable source control to enterprise‑grade CI/CD infrastructure executing millions of builds annually.

The ideal candidate has 7+ years in Platform Engineering, DevOps, or SRE, with Python or Go, deep CI/CD experience, and expertise in infrastructure as code and Kubernetes.

Qualifications

• 7+ years of hands-on experience in SRE, DevOps, or Platform Engineering within large, distributed systems.
• Strong software development skills in Python or Go.
• Deep expertise with CI/CD platforms and automating SDLC processes (Jenkins, GitHub Actions, Octopus Deploy).
• Experience building scalable developer tooling and artifact infrastructure.
• Proficiency with containers and Kubernetes.
• Experience building RESTful APIs.
• Infrastructure as code expertise (Terraform, Kubernetes Operators).

Responsibilities

• Design and automate deployment pipelines and operational processes to improve efficiency and reliability.
• Champion SRE and DevOps best practices across cloud and on-premises environments.
• Deploy and maintain CI/CD pipelines; optimize infrastructure and manage on-call duties.
• Collaborate with development teams to improve service stability and scalability.
• Participate in incident response and production reliability activities.

Skills

Python

Go

SRE/DevOps

CI/CD

Kubernetes

RESTful APIs

Terraform

Tools

Jenkins

GitHub Actions

Octopus Deploy

Kubernetes

Terraform

Job description

Our client, a world-leading hedge fund, is looking for a Senior DevOps Engineer to join their Platform Engineering team. This is a high-impact opportunity to build and scale the mission-critical platforms that underpin some of the industry's most sophisticated trading and technology environments. You will be responsible for designing, building, and maintaining internal developer platforms, from highly scalable source control systems to enterprise-grade CI/CD infrastructure executing millions of builds annually. Working closely with portfolio management, technology, data, and business teams, you will deliver resilient, automated, and scalable solutions that directly enable innovation and operational excellence across the firm.

The ideal candidate will have 7+ years of experience within Platform Engineering, DevOps, or SRE environments operating at significant scale and complexity. You will combine strong software engineering expertise in Python or Go with deep knowledge of CI/CD ecosystems and large-scale infrastructure automation. The successful candidate will have a proven track record of building and supporting critical developer tooling and artifact infrastructure serving millions of requests per day, while driving engineering best practices and enabling world-class developer productivity across a globally distributed organisation.

Key Responsibilities

• Design and automate deployment pipelines and operational processes to improve efficiency, reliability, and developer autonomy.
• Champion SRE and DevOps best practices-including observability, automation, CI/CD, and infrastructure as code-across cloud and on-premises environments.
• Deploy and maintain CI/CD pipelines; write code for infrastructure optimization; manage operations, including on-call duties, Kubernetes, and training.
• Collaborate with development teams to enhance service stability, scalability, and fault tolerance through mentoring, documentation, and hands-on support.
• Participate in on-call rotation and incident response, sharing responsibility for production reliability.

Our client, a world-leading hedge fund, is looking for a Senior DevOps Engineer to join their Platform Engineering team. This is a high-impact opportunity to build and scale the mission-critical platforms that underpin some of the industry's most sophisticated trading and technology environments. You will be responsible for designing, building, and maintaining internal developer platforms, from highly scalable source control systems to enterprise-grade CI/CD infrastructure executing millions of builds annually. Working closely with portfolio management, technology, data, and business teams, you will deliver resilient, automated, and scalable solutions that directly enable innovation and operational excellence across the firm.

The ideal candidate will have 7+ years of experience within Platform Engineering, DevOps, or SRE environments operating at significant scale and complexity. You will combine strong software engineering expertise in Python or Go with deep knowledge of CI/CD ecosystems and large-scale infrastructure automation. The successful candidate will have a proven track record of building and supporting critical developer tooling and artifact infrastructure serving millions of requests per day, while driving engineering best practices and enabling world-class developer productivity across a globally distributed organisation.

Key Responsibilities

• Design and automate deployment pipelines and operational processes to improve efficiency, reliability, and developer autonomy.
• Champion SRE and DevOps best practices-including observability, automation, CI/CD, and infrastructure as code-across cloud and on-premises environments.
• Deploy and maintain CI/CD pipelines; write code for infrastructure optimization; manage operations, including on-call duties, Kubernetes, and training.
• Collaborate with development teams to enhance service stability, scalability, and fault tolerance through mentoring, documentation, and hands-on support.
• Participate in on-call rotation and incident response, sharing responsibility for production reliability.

To be considered a good fit, you must have:

• 7+ years of hands-on experience in SRE, DevOps, or Platform Engineering roles within complex, distributed systems environments.
• Strong software engineering skills with Python or GoLang.
• Deep expertise with CI/CD platforms and automation of SDLC processes (Jenkins, GitHub Actions, Octopus Deploy).
• Experience with critical artifacts infrastructure that serve millions of requests per day.
• Experience architecting and implementing testable, scalable, and reliable software and infrastructure solutions.
• Deep expertise with containers and Kubernetes, including application management and orchestration.
• Experience building and maintaining RESTful APIs.
• Proficiency with configuration/infrastructure as code (e.g., Terraform, Kubernetes Operators).