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Date live:
Jan. 23, 2026
Business Area:
Markets Pre Trade
Area of Expertise:
Technology
Reference Code:
JR-0000088262
Contract:
Permanent
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Explore locationWe are seeking a junior Java developer for designing and developing ultra-low-latency end-to-end Direct Market Access (DMA) trading platform. As a Barclays Developer within Equities QPS (Quantitative Prime Services) Technology, you will join a team focused on building out the functionality and technology of the SubM , SUBM-R, SubM Native systems for our flagship product offering for giving ultra-low latency to a very niche domain of very high volume and low latency sophisticated Equites trading clients, mostly Hedge funds as well as develop Cash Connectivity Platform for our Equities Cash Business.
Key Accountabilities
Development of industry-leading, ultra-low-latency Equities trading systems. Individual should be taking up the full responsibility and drive deliveries at a time.
Provide estimates for tasks including design, development, and testing.
Holistic simulation and testing of the trading system for high reliability
Support analysis, testing, and operations teams
Participate in code reviews and architectural decisions
Problem Solving
Working with business analysts and project managers to understand the requirements
Analysing those requirements to find the most appropriate technical solution and creating a technical specification where needed
Developing a pragmatic software solution as per the requirement specifications
Unit / system / regression / performance testing of the solutions
Fixing bugs coming out of System / UAT testing
Reviewing code produced by others
Supporting the implementation of each new code
Resolving any post-implementation issues as needed
Participating in post-project reviews to improve the project lifecycle where necessary
Essential Skills/Basic Qualifications:
Excellent hands-on experience of coding in java.
Understanding of low latency data structures and writing a java code for multithreaded server applications and performance tuning techniques on Linux.
Good scripting skills using Python, Perl or similar,
Experience in a Linux environment and understanding of high level Computer Science concepts such as data structures and algorithms.
Desirable skills/Preferred Qualifications:
Experience in working in the Investment banking.
Understanding of computer networks, computer architecture, and operating systems like Linux.
Degree in Computer Engineering, or Computer Science
You may be assessed on key critical skills relevant for success of the role including job-specific technical skills and interpersonal skills.
Barclays is required by law to confirm that you have the Legal Right to Work in any role that you apply for. If you currently hold a work visa sponsored by Barclays, or you would require sponsorship from Barclays, you must declare this as part of your application. Sponsored visas are role and entity specific, and any changes must be reviewed. It is important that you ensure you are working on the correct visa at all times. Failure to accurately disclose your visa status or Legal Right to Work may result in your application or any employment offer being withdrawn at any time
Purpose of the role
To design, develop and improve software, utilising various engineering methodologies, that provides business, platform, and technology capabilities for our customers and colleagues.
Accountabilities
Analyst Expectations
All colleagues will be expected to demonstrate the Barclays Values of Respect, Integrity, Service, Excellence and Stewardship – our moral compass, helping us do what we believe is right. They will also be expected to demonstrate the Barclays Mindset – to Empower, Challenge and Drive – the operating manual for how we behave.