Senior Automation Engineer

Salary: £62,000 - 102,000 per year

Requirements:

• We require eight or more years of hands-on experience in a technical software development role, with a strong record of delivering production-grade systems.
• We need demonstrated ability to architect and implement scalable applications, developer frameworks, or shared tooling from scratch, with clear ownership through the full development lifecycle.
• We need deep knowledge of software engineering fundamentals, including data structures, algorithms, object-oriented design, and design patterns, applied to real-world systems.
• We need hands-on experience or demonstrable applied interest in integrating AI tools within a software development or testing context.
• We need sharp analytical and problem-solving skills with close attention to detail, enabling root-cause diagnosis and pragmatic engineering solutions.
• We need a clear and confident communicator who can translate complex technical concepts for both engineering peers and non-technical stakeholders.
• We need effective collaboration in agile team environments, comfortable working across engineering, operations, and business analyst functions.
• Beneficial: background in financial services technology, with an understanding of the complexity and risk considerations inherent in those environments.
• Beneficial: familiarity with Behaviour-Driven Development (BDD) principles and experience applying them to framework or test strategy design.
• Beneficial: working knowledge of containerisation technologies such as Docker or Kubernetes, and experience deploying or operating on cloud platforms.
• Beneficial: expertise in at least one major programming language such as Java or Python, combined with extensive practical experience using testing frameworks and tools such as JUnit, TestNG, Selenium, Playwright, Cucumber, or Postman.
• Beneficial: experience building and maintaining shared libraries or contributing to open-source projects used by broader engineering communities.

Responsibilities:

• We will architect, build, and maintain scalable, developer-friendly frameworks, testing libraries, and internal tooling from the ground up, establishing and owning the core testing infrastructure used across the development team.
• We will design and implement CI/CD pipelines in collaboration with Operations and Development teams, optimising the build, test, and deploy lifecycle to ensure a reliable, feedback-driven delivery process.
• We will identify and engineer automation solutions that eliminate manual steps across the development lifecycle, continuously raising the bar for reliability and engineering efficiency.
• We will research, prototype, and integrate AI-powered tools and techniques, including AI for test data generation, anomaly detection, and code completion, to measurably enhance developer productivity and test effectiveness.
• We will partner with development teams, business analysts, and operations stakeholders to translate complex application requirements into well-documented, testable, and maintainable framework designs.
• We will champion a shift-left approach to software quality, leading code reviews and guiding engineers on best practices for code quality, testability, and design standards.
• We will assess risk in technical decisions with consideration for Citis reputation and obligations, escalating control issues transparently and ensuring adherence to applicable policies, laws, and regulations.

Technologies:

• AI
• Architect
• CI/CD
• Cloud
• Cucumber
• Docker
• JUnit
• Java
• Kubernetes
• Playwright
• Postman
• Python
• Selenium

More:

We are Citi, a global organisation whose mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress. We are hiring a Senior Automation Engineer to join our Securities Finance Technology team in Belfast, Northern Ireland. This is a hands-on role at the intersection of engineering productivity, software quality, and AI-powered development tooling, where you will help shape the technical foundations used by our broader engineering team. We offer meaningful scale, real ownership, access to cutting-edge AI development tooling, and a high-performing, collaborative environment. Our Belfast workplace is business casual and follows a hybrid working model with up to 2 days working from home per week. We also offer a competitive base salary reviewed annually, generous holiday allowance starting at 27 days plus bank holidays and increasing with tenure, a discretionary annual performance-related bonus, private medical insurance, an Employee Assistance Program, a pension plan, paid parental leave, special discounts for employees, family, and friends, and access to learning and development resources. We are committed to an inclusive workplace where everyone feels comfortable coming to work as their whole self every day.

last updated 36 week of 2026