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Citi Logo Citi · IT - Software Development

Senior Engineer - Python & Containerization

United Kingdom, London Employment contract · Job Posted November 27, 2025
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Job Description

This role sits within the Container Security team, which is responsible for ensuring, maintaining, and improving the security of container technologies within the firm. The candidate will engineer automated security solutions to secure and harden internal platforms and reduce friction for developers in their lifecycle. Responsibilities include improving container SDLC, image scanning, engineering firm-wide solutions, and collaboration with platform teams and developers.

Job Responsibility

  • Analysing, architecting, building and enhancing Container Security tools and platforms that provide capabilities for CISO and developers
  • Owning solutions that are expected to operate and perform at scale across the organisation
  • Collaboration with multiple stakeholders and partners across Engineering and Operations as well as partner teams within the wider Citi organisation, across different time zones

Requirements

  • Highly motivated self-starter with excellent interpersonal and problem-solving skills
  • Bachelor’s degree or equivalent work experience
  • Good oral and written communication skills
  • 7+ years of relevant industry work experience
  • Hands-on experience integrating Container Image Scanning platforms and tooling
  • Experience of the full lifecycle of design, implementation and running of enterprise software solutions involving cross functional team collaboration
  • Experience contributing to the architecture and design (architecture, design patterns, reliability, scaling) of new and current systems
  • Experience of k8s and container technologies such as Docker, Podman and Openshift
  • Experience of security fundamentals with relation to a k8s platform and DevSecOps a bonus
  • Expertise in a major programming language such as Python or Java, and associated tooling (Git, Maven, IDEs, Jenkins, Bitbucket etc)
  • Expertise with DevOps, CI/CD and agile methodology

What we offer

  • 27 days annual leave (plus bank holidays)
  • A discretional annual performance related bonus
  • Private Medical Care & Life Insurance
  • Employee Assistance Program
  • Pension Plan
  • Paid Parental Leave
  • Special discounts for employees, family, and friends
  • Access to an array of learning and development resources
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