Senior DevOps Engineer – Cloud, Kubernetes & Observability

Citi; Belfast City District; Hybrid; GBP 70,000 - 110,000; Full time

Benefits offered by this job

Hybrid working model (3 days in office

2 days remote

Broad tech stack exposure

Autonomy in technical decisions

Learning and development programs

Competitive compensation

Wellbeing and family support

Job summary

Citi is seeking a Senior DevOps Engineer to design, build, and optimize scalable systems powering global operations. You will drive CI/CD pipelines, container orchestration on Kubernetes/OpenShift, and robust observability to ensure production resilience and performance.

You will guide junior engineers, enforce security across the delivery lifecycle, and collaborate with cross-functional teams to meet business goals in a fast-paced environment. Hybrid work arrangement offered.

Qualifications

• 4 to 8 years of experience in software engineering, systems development, or DevOps with demonstrated delivery in complex technical environments.
• Hands-on experience with CI/CD tooling, including Git-based workflows, pipeline configuration, and automated build and deployment processes.
• Practical knowledge of Kubernetes and OpenShift for container orchestration, including Helm chart development and cluster management.
• Working knowledge of Linux administration and shell scripting to support automation, system configuration, and operational tasks.
• Experience delivering and managing software projects end-to-end, from planning and design through to testing and production deployment.
• Ability to work autonomously in a fast-paced environment, managing competing priorities and adapting to changing technical or business requirements.
• Bachelor’s degree in a relevant field or equivalent practical experience.

Responsibilities

• Design and implement CI/CD pipelines using Git, Tekton, and Harness to accelerate and standardize software delivery across engineering teams.
• Build and manage containerized workloads on Kubernetes and OpenShift using Helm, ensuring systems are scalable, reliable, and production ready.
• Architect and maintain observability solutions — including log aggregation with Splunk and Elastic/Kibana, and metrics monitoring with Prometheus and Grafana — to give engineering teams real-time visibility into system health.
• Evaluate complex technical problems across application systems, business processes, and delivery pipelines, and develop engineering solutions that meet specific business requirements.
• Collaborate with development teams, business users, and technology stakeholders to define operating standards, resolve technical issues, and recommend engineering improvements.
• Develop and enforce security measures across the software delivery lifecycle, ensuring system design supports compliance with applicable policies and technical standards.
• Act as a technical authority for junior and mid-level engineers, providing guidance, code review, and hands-on support to elevate team capability.

Skills

CI/CD pipelines

Autonomous working

End-to-end delivery

Linux administration

Shell scripting

Communication with stakeholders

Cloud knowledge (AWS)

Education

Bachelor's degree in a relevant field

Tools

Git

Tekton

Harness

Kubernetes

OpenShift

Helm

Splunk

Elastic/Kibana

Prometheus

Grafana

AppDynamics

Datadog

AWS

Job description

Citi is seeking a Senior DevOps Engineer to design, build, and optimize scalable systems powering global operations. You will drive CI/CD pipelines, container orchestration on Kubernetes/OpenShift, and robust observability to ensure production resilience and performance.

You will guide junior engineers, enforce security across the delivery lifecycle, and collaborate with cross-functional teams to meet business goals in a fast-paced environment. Hybrid work arrangement offered.