Senior Software Engineer – Margin Technology - Assistant Vice President

Citigroup Inc.; Greater London; Hybrid; GBP 90,000 - 140,000; Full time

Benefits offered by this job

Hybrid work model with up to 2 days at

27 days annual leave

Discretionary annual bonus

Private Medical Care & Life Insurance

Employee Assistance Program

Pension Plan

Paid Parental Leave

Employee discounts

Learning resources

Job summary

Citi is seeking a Senior Software Engineer to join its global Tech team in a role that combines software development with collaboration across product teams and users. You will contribute to building scalable, high‑quality solutions and help advance Citi's engineering culture across global teams.

The position emphasizes solving complex business problems, strong communication, and the ability to handle multiple priorities in a dynamic environment, with hybrid work arrangements.

Qualifications

• Bachelor's degree in computer science or engineering involving software programming or systems engineering.
• Proficiency in Java, React and/or Python.
• Strong hands‑on experience building RESTful APIs using Spring.
• Experience with TDD and clean code principles.
• Proficiency with data structures, algorithms and SQL.

Responsibilities

• Work with product teams and users to build software solutions across the full development spectrum.
• Contribute to a strong engineering culture within global teams and mentor peers.
• Build robust, high‑quality solutions that meet complex business needs.
• Communicate effectively to manage multiple priorities in a fast paced environment.

Skills

Java

React

Python

REST APIs

Spring

TDD

SQL

Algorithms

Education

Bachelor’s degree in CS or Engineering

Tools

AWS

Kafka

Kubernetes

S3

DynamoDB

MongoDB

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 Senior 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

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-BH3

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Job Family Group:

Technology

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Job Family:

Applications Development

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Time Type:

Full time

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Most Relevant Skills

Please see the requirements listed above.

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Other Relevant Skills

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

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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.