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Job Details


Belfast, Northern Ireland


Senior Cloud Platform Engineer (Hybrid)

  • Overview of Citi:

    Citi is a world-leading global bank. We have approximately 200 million customer accounts and a presence in more than 160 countries and jurisdictions worldwide. We provide consumers, corporations, governments, and institutions with a broad range of financial products and services, including consumer banking and credit, corporate and investment banking, securities brokerage, transaction services, and wealth management. We enable clients to achieve their strategic financial objectives by providing them with cutting-edge ideas, best-in-class products and solutions, and unparalleled access to capital and liquidity.


    Citi Belfast is one of the largest employers in Northern Ireland with a diverse and talented team of over 3000 people from over 40 different nationalities across our four Belfast offices.


    We are the only global investment bank operating in Northern Ireland. Every day, our local experts interact with global teams in over 100 countries developing and supporting next-generation technology solutions for the enterprise and delivering critical services to the bank and its customers, to make sure we are a stronger and safer organization for our clients.


    You will have a truly global reach, which will provide you with new experiences and development opportunities right here in Belfast’s iconic Titanic Quarter.


    Team Overview:

    Citigroup ICG- Securities Services Technology- Infrastructure and Platform management team is looking for a strong Lead Cloud Engineer with Infrastructure / Delivery Project management experience.



    • Serve as a technology subject matter expert for internal and external stakeholders and provide direction for all firm mandated controls and compliance initiatives, all projects within the group and in creating a technology domain roadmap.

    • Ensure that all integration of functions meet business goals.

    • Define necessary system enhancements to deploy new products and process enhancements.

    • Recommend product customization for system integration.

    • Identify problem causality, business impact and root causes.

    • Exhibit knowledge of how own specialty area contributes to the business and apply knowledge of competitors, products and services.

    • Advise or mentor junior team members.

    • Impact the engineering function by influencing decisions through advice, counsel or facilitating services.

    • Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency.


    The role will include, following technical responsibilities;

    • Hands-on Cloud implementation with Microservices/ Platform delivery experience across a broad range of Cloud services.

    • Must have in depth knowledge of AWS platform architecture (Containerization - Docker, Amazon EKS, AWS Directory Structure, Lambda, EC2, S3 bucket, Route 53, ELB, Amazon DocumentDB, Amazon Kafka, PostgreSQL).

    • Strong knowledge of DevOps and CI/CD pipeline (GitHub, Jenkins, Artifactory, Maven).

    • Experience in understanding core AWS platform architecture, including areas such as:  Organizations, Account Design, VPC, Transit Gateway, Subnet, segmentation strategies. 

    • Private Cloud Environment and application automation through Microservices architecture/ Engineering/ Design and Implementation.

    • AWS experience with at least 1 implementation (preferred in an Enterprise scale environment).

    • Experience with off-Premise (Public) as well as On-Premise (Private) application hosting on Cloud.

    • CloudFormation and third-party automation approach/strategy

    • Network connectivity, Direct Connect and VPN

    • Good knowledge of Encryption, Logging, and Privacy/Security Protocols (e.g. TLS 1.2, ELK stack).

    • Good knowledge of REST/SOAP/JSON web service API implementation.

    • Familiarity in developing Web Services with Python, JSON, Cassandra

    • Familiarity with Public cloud automaton tooling and scripting experience – CFn, Terraform, Ansible, Puppet, Jenkins.

    • Scripting capability and the ability to develop AWS environments as code is a Plus.

    • Backup and Disaster Recovery approach and design is a Plus.

    • Experienced in developing test plan, test cases, baselines, and conducting end-to-end testing is a Plus.

    • AWS Cost Management and Optimization is a Plus.



    • Extensive experience in Infrastructure delivery management.

    • AWS Certified Cloud engineer is preferred.

    • Strong background in the information technology / consulting/ financial services.

    • Good experience in Markets and Securities Services is a plus.

    • Subject Matter Expertise in infrastructure/ Hardware/ Software/ Database/ Middle ware stack and experience in implementing Engineering standards

    • Strong knowledge of infrastructure project management including End of Vendor support upgrade.

    • Experience managing infrastructure life cycle including upgrades and migrations.

    • Experience in writing range of technology physical and logical requirements and, Tech stack Functional Requirements Document, Build document, Dependencies mapping, etc.

    • Experience in driving business results through effective use of technology solutions.

    • Comprehensive knowledge of design metrics, analytics tools, benchmarking activities and related reporting to identify best practices.

    • Demonstrated analytic/diagnostic skills.

    • Ability to work in a matrix environment and partner with virtual teams.

    • Ability to work independently, multi-task, and take ownership of various parts of a project or initiative.

    • Ability to work under pressure and manage to tight deadlines or unexpected changes in expectations or requirements.

    • Proven track record of operational process change and improvement.



    • Experience in Cloud based technologies, Micro services, OpenShift, AWS, Google, Azure, etc.

    • Exposure level skills in SQL, Windows, Linux, Oracle, Kafka, MQ, Tomcat, JBoss.

    • Experience in managing Infrastructure projects for Enterprise Container Solutions/OpenShift/ Cloud by defining scope, dependencies, and priorities.

    • Knowledge of industry standard tools and technologies.

    • Presentation skills with a high degree of comfort speaking with executives, IT Management, and developers.

    • Demonstrated ability to adapt to new technologies and learn quickly.

    • Strong relationship builder, works as a partner with multiple stakeholders and business areas.

    • A self-starter who can deliver well as part of a team.

    • Ability to work under pressure during tight deadlines.

    • Excellent analytical and problem-solving skills.



    • Bachelor’s degree/University degree or equivalent experience

    • Master’s degree preferred


    What we Offer:


    We work hard to have a positive financial and social impact on the communities we serve. In turn, we put our employees first and provide the best-in-class benefits they need to be well, live well and save well.


    We’ll provide you with the resources to meet your unique needs, empower you to make healthy decisions, and allow you to choose which benefits suit you and your personal life best.


    Visit our Global Benefits page to learn more.


    Highlights to our core benefits include:

    • Award winning pension

    • On-site health services

    • Private medical insurance packages to suit your personal circumstances

    • Paid parental leave

    • Generous holiday allowance starting at 27 Days plus bank holidays; increasing with tenure


    Citi Belfast also champions diversity within our workforce, which helps us be well and live well together. We have over 40 different nationalities in our Northern Ireland offices, are a vocal supporter of LGBTQ+ rights, and are proud to have 47% of our leadership team made up of individuals who identify as women.


    We encourage and lead inclusivity through our Pride, Disability, Multicultural, Families Matter, and Women affinity networks that are run by and for, Citi Belfast colleagues; providing them with the support they need in their personal and professional journeys and supplying them with the tools to help educate colleagues on all things related to each network to help us work better together. 

Apply Now

Applications processed via employer's online application form