Principal Software Engineer - Margin Technology - Senior Vice President

Principal Software Engineer - Margin Technology - Senior Vice President

London, GBR

Citigroup

2026-04-23T04:28:07.159Z

Engineer the future of global finance. At Citi, our Tech team doesn't just support finance - we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech.

What We do / The Team

Markets Operations Technology is going through an exciting phase of transformation in margin and collateral domain. We are re-engineering our technology estate to achieve world-leading performance and resiliency, enabling new capabilities in advanced execution, global market connectivity, and modernised post-trade, clearing and margin processes. Our ambition is to deliver a seamlessly integrated, highly automated platform that drives outstanding client outcomes and accelerates growth across our global franchise.

Role Overview/What will you do

As Principal Software Engineer in our global technology team, you will be working with a group of passionate engineers who build technical solutions to complex business problems.

You will be instrumental in shaping the future of our product and working towards a target state of a fully automated platform with minimal manual interventions. You will have an opportunity to participate in the whole spectrum of building a software solution, closely working with product teams and users. We expect you to contribute to our vision of building a strong engineering culture within our global teams.

This role is for someone who is a strong technologist, deep understanding of modern technologies, distributed system design, enjoys solving engineering challenges, has experience in building robust and high-quality solutions, has excellent communication skills and can manage multiple priorities simultaneously.

Key Skills and Experience required

• Hands-on professional software development experience
• Experience of designing distributed systems, microservices, micro-frontend UIs
• Experience of using cloud services such as AWS and distributed systems such as Kafka, Kubernetes, S3, DynamoDB, MongoDB or any other NoSQL database
• Experience of following TDD and passionate about clean code principles
• Proficiency in programming in Java, Python, JavaScript or React
• Solid understanding and experience of using data structures, algorithms and SQL
• Able to independently work in fast paced and rapidly changing environment
• Bachelor's degree in computer science or engineering field involving software programming or systems engineering

Any Beneficial / Nice to have skills and experience

• Experience of working in investment bank or financial services industry
• Able to apply entrepreneurial approach to software development and problem solving

Job Family Group:

Technology

Job Family:

Applications Development

Time Type:

Full time

Most Relevant Skills

Please see the requirements listed above.

Other Relevant Skills

For complementary skills, please see above and/or contact the recruiter.

• Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.
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• View Citi's EEO Policy Statement and the Know Your Rights poster.

Citi is an equal opportunity and affirmative action employer.

Minority/Female/Veteran/Individuals with Disabilities/Sexual Orientation/Gender Identity.


#s1-Gen


• Hands-on professional software development experience
• Experience of designing distributed systems, microservices, micro-frontend UIs
• Experience of using cloud services such as AWS and distributed systems such as Kafka, Kubernetes, S3, DynamoDB, MongoDB or any other NoSQL database
• Experience of following TDD and passionate about clean code principles
• Proficiency in programming in Java, Python, JavaScript or React
• Solid understanding and experience of using data structures, algorithms and SQL
• Able to independently work in fast paced and rapidly changing environment
• Bachelor's degree in computer science or engineering field involving software programming or systems engineering
Any Beneficial / Nice to have skills and experience:
• Experience of working in investment bank or financial services industry
• Able to apply entrepreneurial approach to software development and problem solving
  
  Engineer the future of global finance. At Citi, our Tech team doesn't just support finance - we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech.
What We do / The Team: Markets Operations Technology is going through an exciting phase of transformation in margin and collateral domain. We are re-engineering our technology estate to achieve world-leading performance and resiliency, enabling new capabilities in advanced execution, global market connectivity, and modernised post-trade, clearing and margin processes. Our ambition is to deliver a seamlessly integrated, highly automated platform that drives outstanding client outcomes and accelerates growth across our global franchise. Role Overview/What will you do: As Principal Software Engineer in our global technology team, you will be working with a group of passionate engineers who build technical solutions to complex business problems. You will be instrumental in shaping the future of our product and working towards a target state of a fully automated platform with minimal manual interventions. You will have an opportunity to participate in the whole spectrum of building a software solution, closely working with product teams and users. We expect you to contribute to our vision of building a strong engineering culture within our global teams. This role is for someone who is a strong technologist, deep understanding of modern technologies, distributed system design, enjoys solving engineering challenges, has experience in building robust and high-quality solutions, has excellent communication skills and can manage multiple priorities simultaneously.