[Skip to main content](#main-content) [ OpenNash ](https://opennash.com/) / [Jobs](https://jobs.opennash.com/) [ 01 Search jobs](https://jobs.opennash.com/search/)[ 02 Companies](https://jobs.opennash.com/explore/)[ 03 Hiring report](https://jobs.opennash.com/reports/hiring/)[ 04 AI assistants](https://jobs.opennash.com/connect/)[ 05 How it works](https://jobs.opennash.com/methodology/) Jefferies Financial · London, United Kingdom # Global Equities Technology - Developer Support (Associate) London, United Kingdom Full-time Software Engineering Listed on Jefferies Financial ’s official careers site. Posted October 28, 2026. Check that it is still open and apply there. [Apply on Jefferies Financial ’s careers site →](https://hdid.fa.us2.oraclecloud.com/hcmUI/CandidateExperience/en/sites/CX_1/job/5044) [OpenNash Jobs](https://jobs.opennash.com/) / [Jefferies Financial ](https://jobs.opennash.com/companies/jefferies-financial/) / Global Equities Technology - Developer Support (Associate) ## Job description Company Jefferies, the global investment banking firm, has served companies and investors for over 50 years. Headquartered in New York with its European head office in London and staff in over 30 global cities, the firm provides clients with capital markets and financial advisory services, institutional brokerage and securities research, and wealth and asset management. Jefferies provides research and execution services in equity, fixed income, foreign exchange, futures and commodities markets, and a full range of investment banking services including underwriting, merger and acquisition, restructuring and recapitalization. ### Role Overview Division: Global Equities Technology Department: Global Equities Data and Analytics Our global Equity Technology team is building cutting-edge technology solutions spanning across the full spectrum of equity products globally: Cash, Portfolio trading, Algo trading, Central risk book, listed and OTC derivatives, convertible bond, equity swap, and ETF & basket trading covering multi asset sales & trader order management, quantitative trading, real time position and risk management, AI/ML data analytics, trade lifecycle management, and regulatory & customer reporting. Our team is global and located in all major trading hubs/cities of the world operating in a 24x7 follow-the-Sun model. London is one of the hubs for our global Equities franchise. You’ll work with teams across New York, Hong Kong, Pune, and other major markets, contributing to systems that run in real time and at global scale. We're growing fast, breaking into new markets and regions and we're often building new technology platforms from the ground up. We have people from across the business coming to us to build technological solutions to their most mission-critical business challenges with strong exposure to front-office trading workflows, opportunities to own end-to-end components. We use a spectrum of development frameworks and programming languages including Python, Java, C++, C#, KDB/Q, full stack visualization dashboards implementations with HTML5 & D3 in addition to the cloud on a global scale to provide capacity, performance, and resilience with cutting-edge high-performance messaging & in memory databases. If you are interested in working in a fast-paced environment and want to be in the middle of the action with a talented team of technologists and looking for a path to develop deep expertise in markets, low-latency engineering, and large-scale distributed systems—with clear ownership and impact from day one, our team is the place to be. ### Job Description Global Equities Data and Analytics Team is looking for a team located in London to be part of the global team managing, developing, and supporting Global Equities Data and Analytics Platform, which provides data and analytics services for over 10 trading desks globally including Cash Equities, Derivatives (Listed and OTC), Electronic trading, Algo trading, Index rebalance strategists, ETFs trading, Delta One, Central Risk Book, SecFin trading, etc. Global Equities Data and Analytics platform manages multi-asset (e.g. stocks, ETFs, Index, Futures, Options) real-time and historical market data and other vendor data (e.g. Barra, MSCI) globally. It provides services for trading desks to do day-to-day trading, risk management, hedging decisions and AI use cases for real-time trading. London team will be very important part of our global platform covering EMEA and overlapping with Asia, US time zone from supporting perspective, and managing real-time market data in EMEA region as well as building out EMEA regional specific use cases and requirements. It will be also critical part of supporting EMEA Equities business closely with trading desks in the region. The skills include KDB/Q, Python w (cloud/iceberg/Parquet) etc. The Developer Support role (Associate) will have opportunities of supporting large scale of global platform with low-latency real-time data and big data set of historical data, learning KDB/Q skills and other programing languages (e.g. Python w cloud/iceberg/Parquet, Java), and contributing to global platform development with hybrid presence (on-prem & cloud). Proven experience managing large financial databases and datasets consisting of real-time and historical data and excellent communication skills are required, as you’ll be in a fast-paced environment working hands-on closely with other developers, QA and production support teams. The successful candidate will be expected to create innovative analytics solutions that advance the business; and will be improving the design, analytics, development, coding, testing and application programming that goes into creating high-quality software and new products. ### Principal Responsibilities Managing real-time market data in the region and building out EMEA regional specific use cases and requirements. Supporting Global Data & Analytics platform including real-time and historical data Working with and supporting trading desks and quants in the region - Implement functionality based on defined API Use and implement library-grade software - Ensure clean and efficient coding practices and adherence to industry best practices - Collaborate with other developers to implement efficient and robust solutions Writing documentation ### Technical Qualifications 3+ years working with large financial data sets, such as market data, order/execution data, and/or positions data 3+ years of Kdb+/Q, experience working in a Unix/Linux environment Superb communication and interpersonal skills; Confident in communicating with developers, QA, and production support team Ability to learn new technologies and business knowledge Other language experience required Python w/ (cloud/iceberg/parquet), Java (a plus), Unix/Linux Experience of agile methodologies will be an advantage Highly Valued Capital markets experience, e.g. Derivs, Stocks, index, ETFs trading Proven delivery track record, Cloud experience (e.g. AWS) is preferred Good team player with a strong desire to participate and help others Able to bring critical thinking and new ideas to the team Demonstrates thoroughness and strong ownership of work #LI-JD1 ## At a glance - Posted by the employer: Oct 28, 2026 - First seen by OpenNash: Nov 2, 2026 - Last checked: Nov 2, 2026 - Listed for: 5 days - Location: London, United Kingdom - Employment type: Full-time[Apply on Jefferies Financial ’s careers site →](https://hdid.fa.us2.oraclecloud.com/hcmUI/CandidateExperience/en/sites/CX_1/job/5044) ## Hiring at Jefferies Financial - Open jobs: 157 - New in the last 7 days: After two weekly collections - Tracked since: Oct 12, 2026 [All Jefferies Financial jobs](https://jobs.opennash.com/companies/jefferies-financial/) · [Weekly hiring report](/reports/hiring/) ## More jobs at Jefferies Financial ### [Global Equities Technology - Developer (Vice President)](https://jobs.opennash.com/companies/jefferies-financial/jobs/60c2880a126247acdaf6/) London, United Kingdom ### [Junior Algorithmic Developer, Analyst, London](https://jobs.opennash.com/companies/jefferies-financial/jobs/a8600562b6c933718056/) London, United Kingdom ### [Securities Finance Developer (Vice President)](https://jobs.opennash.com/companies/jefferies-financial/jobs/40937956807114f24f7b/) London, United Kingdom ### [Capital Structure Solutions - Vice President](https://jobs.opennash.com/companies/jefferies-financial/jobs/7e2d0dca7a39d11506ae/) London, United Kingdom ### [ECM - Analyst / Associate](https://jobs.opennash.com/companies/jefferies-financial/jobs/503d362a5c5e47ff030d/) London, United Kingdom ## Similar jobs at other companies ### [Developer Relations, Technology Evangelist](https://jobs.opennash.com/companies/apple/jobs/0ed37ce6a2b52a626759/) Apple · London, United Kingdom ### [Software Engineer III, Equities Technology - C++ Low Latency](https://jobs.opennash.com/companies/jpmorganchase/jobs/e70f196c3f1c2713a088/) JPMorganChase · Singapore ### [Full Stack Engineer - Equities Technology](https://jobs.opennash.com/companies/hsbc-holdings/jobs/0b12dda9efa14e95761c/) HSBC Holdings · Toronto, Ontario, Canada ### [Global Equities - EMEA Equity Delta One Trading - Analyst](https://jobs.opennash.com/companies/jpmorganchase/jobs/add60f29c02d6e477bf6/) JPMorganChase · LONDON, United Kingdom ### [Equities Technology (Low Latency Developer) - JAVA OR C++](https://jobs.opennash.com/companies/citigroup/jobs/44a59b5f430cd5146597/) Citigroup · Belfast United Kingdom OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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