Senior DevOps Engineer | London, Hybrid | up to £125k

Source Technology Limited; Greater London; Hybrid; GBP 110,000 - 125,000; Full time

Benefits offered by this job

Hybrid working

Permanent role

Competitive salary up to £125k

Job summary

Source Technology Limited is seeking a Senior DevOps Engineer to standardise build and deployment pipelines across a large application estate. You will work on CI/CD, IaC, and secure, repeatable environments for C#/.NET and Python applications.

Utilising Terraform, Docker, Kubernetes, and cloud platforms, you will drive reliability, observability, and secure configuration while collaborating with engineering teams in a hybrid London setting.

Qualifications

• Significant DevOps/SRE/Platform Engineering experience in regulated environments.
• Proven software development in C#/.NET stack.
• Strong Linux administration and scripting (Bash; Python).
• Cloud networking, DNS, load balancing, autoscaling, security controls.
• Hands-on Kubernetes and container build/deploy workflows.
• CI/CD tooling expertise (GitHub Actions, Jenkins, GitLab CI, Azure DevOps).
• Understanding of SDLC, Git workflows, and automated testing.

Responsibilities

• Design and operate scalable cloud infrastructure (AWS/Azure).
• Build and maintain CI/CD pipelines and deployment tooling.
• Implement IaC using Terraform and CloudFormation.
• Drive containerization with Docker and Kubernetes (EKS/AKS).
• Enhance observability with monitoring/logging (Prometheus, Grafana, ELK/EFK).
• Embed security best practices: IAM, secrets, patching, remediation.
• Support incident response and on-call rotations.
• Collaborate with engineers to raise reliability and delivery standards.

Skills

DevOps/SRE experience

C#/.NET stack

Linux administration

Scripting (Bash, Python)

Cloud networking

Kubernetes

CI/CD tooling

Security controls

Incident response

Tools

Terraform

CloudFormation

Docker

Kubernetes

GitHub Actions

Jenkins

GitLab CI

Azure DevOps

Prometheus

Grafana

Job description

We're working with a leading global financial institution that is looking for aSenior DevOps Engineerto join its engineering organisation and help standardise and improve build and deployment pipelines across a large application estate.

The environment includesC#/.NET and Python applications, with a mix of modern and legacy technologies. You’ll work closely with application and engineering teams to createconsistent, secure and highly reusable CI/CD processesthat improve the way software is built, tested and deployed across the organisation.

Key Responsibilities

• Design and operate scalable, highly available cloud infrastructure (primarily AWS and/or Azure).
• Build and maintain CI/CD pipelines, release tooling and deployment automation.
• Implement Infrastructure as Code using Terraform (and/or CloudFormation), ensuring repeatable environments.
• Drive containerisation and orchestration using Docker and Kubernetes (including managed services such as EKS/AKS).
• Improve observability with monitoring, logging and alerting (e.g. Prometheus, Grafana, ELK/EFK, CloudWatch).
• Embed security best practice: IAM, secrets management, patching, vulnerability remediation and secure configuration.
• Support incident response and problem management, participating in on‑call rotations and post-incident reviews.
• Collaborate with engineers and stakeholders to raise reliability, performance and delivery standards.

Required Skills & Experience

• Significant experience in DevOps/SRE/Platform Engineering roles within regulated environments.
• Proven experience in a software developer / engineering role within the C#/.NET stack
• Strong Linux administration and scripting (Bash; Python preferred).
• Proven experience with cloud networking, DNS, load balancing, autoscaling and security controls.
• Hands‑on Kubernetes and container build/deploy workflows.
• Strong knowledge of CI/CD tooling (e.g. GitHub Actions, Jenkins, GitLab CI, Azure DevOps).
• Solid understanding of SDLC, Git workflows, and automated testing practices.
• Experience implementing and maintaining compliance‑aligned controls (e.g. audit trails, least privilege, change management).
• Ability to troubleshoot complex production issues and improve system reliability through engineering.

Nice to Have

• Experience with service mesh, API gateways, or platform tooling for developer self‑service.
• Knowledge of security tooling (SAST/DAST), WAF, and secrets management (e.g. Vault).
• Cloud certifications (AWS/Azure) and exposure to SOC 2, ISO 27001 or similar frameworks.

Package & Location

• Salary: up to £125,000 (dependent on experience)
• Location: London, United Kingdom (Hybrid working)
• Permanent Role
• No sponsorship provided