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.

Job Purpose: 

The FI Algo Technology team supports Citi’s Internal Market Making, Algorithmic Trading, and internal matching for the US Treasury’s algo trading business.  We’re seeking to hire an experienced software engineer to advance the suite of Rates algo execution platform creating a best in class, next generation product for our clients’ franchise.  This includes optimizing execution logic and development of new algorithms to minimize market impact.  The suite of components including execution tools, internal market makers and the hedger components.  

This is a challenging and exciting opportunity to contribute to one of the largest and most sophisticated algo platforms in Rates.  It will involve working directly with trading and quants to solve both business and technology problems with a direct measurable impact on the business.  

Key Responsibilities / Role: 

• Develop reusable algo trading engines with focus on low latency execution strategies  
• Ensure strong reliability, scalability and performance of the core algo components 
• Work with other etrading teams to support live trading 
• Learn and maintain large code base, improve design and quality of the algo trading strategies code  
• Partner with business to drive technology stack beyond near term objectives 
• Adhere to engineering standards and strive for best in class solutions 

Job Opportunities: 

• Work on high profile algo trading projects that deliver next-generation performance and functionality 
• Apply best software architecture and design practices for algo trading strategies development 
• Use scientific approach to improve performance of trading applications 
• Play partnership role defining the direction of Rates algorithmic trading at Citi 
• Harness capabilities of modern technologies and be accountable for the positive impact of delivery 
• Significant profile exposure through business impacting projects 

Knowledge/Experience:  

• Strong software development fundamentals, data structures, design patterns, object-oriented programming, algorithms complexity analysis 
• Extensive hands on coding experience in Core Java within low latency, high throughput distributed applications 
• Experience with ION Platform, FIX, SBE or any other messaging protocols 
• Experience implementing and supporting market data processing applications and algorithmic trading strategies 
• Experience building backtesting frameworks and historical data storages 
• Basic Linux system performance tuning and monitoring, ability to troubleshoot performance issues within Java/Linux stack 
• Working knowledge of no GC Java techniques and lock free thread safe algorithms 
• Experience with Python, Spring, TDD, KDB or any other tick data storages 
• Build tools, gradle, git, teamcity, jenkins, artifactory 
• Strong academic record, ideally with a Bachelor’s degree in Computer Science, Information Science, engineering or related technical or quantitative discipline 

Competencies: 

• Strong verbal and written communication skills; ability to communicate with business users 
• Self-motivated individual with determination to achieve goals 
• Willingness to learn, both technically and professionally 
• Strong analytical and problem solving skills 
• Good team working skills and ability to work in a distributed global team environment 
• Ability to work on a fast-pace environment 
• Flexible and able to deliver quality results in the required timeframe

What we’ll provide you

By joining Citi London, 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.

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