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Citigroup · Belfast United Kingdom

# Software Engineer – Margin Technology

Belfast United Kingdom Hybrid Software Engineering 

Listed on Citigroup’s official careers site. Posted October 21, 2026. Check that it is still open and apply there.
[Apply on Citigroup’s careers site →](https://citi.wd5.myworkdayjobs.com/2/job/Belfast--United-Kingdom/Software-Engineer---Margin-Technology_261000056-1)

[OpenNash Jobs](https://jobs.opennash.com/) / [Citigroup](https://jobs.opennash.com/companies/citigroup/) / Software Engineer – Margin Technology

## Job description

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 a 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 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 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
- Bachelor’s degree in computer science or engineering field involving software programming or systems engineering
- Proficiency in programming in mainly Java, React and/or Python
- Strong hands-on experience of building RESTful APIs using popular frameworks like Spring Experience of following TDD and clean code principles
- Proficiency with data structures, algorithms and SQL Able to independently work in fast paced and rapidly changing environment Any Beneficial / Nice to have skills and experience: Experience of working in investment bank or financial services industry Experience of using cloud services such as AWS and distributed systems such as Kafka, Kubernetes, S3, DynamoDB, MongoDB or any other NoSQL database This job description provides a high-level review of the types of work performed.

Other job-related duties may be assigned as required. What we’ll provide you By joining Citi, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as:
- 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 Visit our Global Benefits page to learn more.

Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self, every day.

We want the best talent around the world to be energized to join us, motivated to stay and empowered to thrive. #LI-MR7 ------------------------------------------------------ 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.

If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi. View Citi’s EEO Policy Statement and the Know Your Rights poster.

## At a glance
- Posted by the employer: Oct 21, 2026
- First seen by OpenNash: Oct 27, 2026
- Last checked: Nov 10, 2026
- Listed for: 20 days
- Location: Belfast United Kingdom
- Work arrangement: Hybrid[Apply on Citigroup’s careers site →](https://citi.wd5.myworkdayjobs.com/2/job/Belfast--United-Kingdom/Software-Engineer---Margin-Technology_261000056-1)

## Hiring at Citigroup
- Open jobs: 4,725
- New in the last 7 days: After two weekly collections
- Tracked since: Jul 10, 2026

[All Citigroup jobs](https://jobs.opennash.com/companies/citigroup/) · [Weekly hiring report](/reports/hiring/)

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