About the Role We are looking for a Junior ION SME to join a high-performing technology team responsible for the support and continuous improvement of electronic trading platforms for Fixed Income. This role offers a unique opportunity to work at the heart of live trading systems in a fast-paced environment, maintaining mission-critical platforms and … driving technical excellence across the e-trading landscape. Key Responsibilities Provide L3 support for ION and e-trading platforms used across Fixed Income desks (trading, sales, and back office). Oversee production trade flows, from market execution to downstream systems and post-trade processes. Maintain and configure production (PRD) and disaster recovery (DR) environments, ensuring stability … platform changes across proprietary systems and third-party components. Collaborate with technical and business stakeholders to ensure seamless service delivery and operational efficiency. Required Experience Proven experience supporting electronic trading environments, ideally with IONTrading platforms. Solid understanding of Fixed Income products (Rates, Credit, Swaps, etc.). Familiarity with the end-to-end trade lifecycle — quoting, execution More ❯
The Role This is an exciting opportunity to join ION as a Principal Technical Consultant. As a Principal Consultant, you will be responsible for project technical oversight and leadership, technical architecture and design, mentoring consultants, and leading and participating in internal initiatives to improve delivery. You will work with business analysts, clients, and team members to design and implement … work onsite at client locations as needed. Ability to work as part of a project team structure. About Us We're a diverse group of visionary innovators who provide trading and workflow automation software, high-value analytics, and strategic consulting to corporations, central banks, financial institutions, and governments. Founded in 1999, we've achieved tremendous growth by bringing together … technology companies in the world. Over 2,000 of the world's leading corporations, including 50% of the Fortune 500 and 30% of the world's central banks, trust ION solutions to manage their cash, in-house banking, commodity supply chain, trading and risk. Over 800 of the world's leading banks and broker-dealers use our electronic More ❯
Test Automation Engineer to join the Fixed Income Front Office team within a leading global financial institution. You will lead QA automation for high-volume, mission-critical Fixed Income trading platforms, building and scaling automation frameworks that enhance delivery quality across Credit, Rates, and Repo business streams. This role involves close collaboration with business stakeholders, product owners, and development … teams to ensure robust, efficient, and scalable testing solutions supporting complex front-office systems. Key Responsibilities Lead automation initiatives across Fixed Income Sales and Trading platforms Build and maintain automation frameworks for functional and regression testing Partner with developers and QA leads to define and implement test strategies Ensure quality and consistency in front-office systems across multiple asset … or .NET Experience with Selenium, Cucumber, REST Assured, JIRA, XRAY, and CI/CD tools such as Bitbucket, Bamboo, or Jenkins Strong understanding of Fixed Income products and E-trading systems such as Bloomberg, Tradeweb, MarketAxess, or ION Strong data validation and SQL skills Excellent communication, analytical, and stakeholder management abilities If you have a passion for automation More ❯
days/weekly in London office Your Experience and Skills Required: 10+ years of professional Java development experience Strong knowledge of low-latency, multi-threaded programming techniques Experience with trading platforms (e.g., Bloomberg, Tradeweb) Understanding of financial markets, particularly Rates and Credit bonds/derivatives Oustanding experience and knowledge with ION platform Expertise in object-oriented design patterns More ❯
london (city of london), south east england, united kingdom
Vallum Associates
days/weekly in London office Your Experience and Skills Required: 10+ years of professional Java development experience Strong knowledge of low-latency, multi-threaded programming techniques Experience with trading platforms (e.g., Bloomberg, Tradeweb) Understanding of financial markets, particularly Rates and Credit bonds/derivatives Oustanding experience and knowledge with ION platform Expertise in object-oriented design patterns More ❯
days/weekly in London office Your Experience and Skills Required: 10+ years of professional Java development experience Strong knowledge of low-latency, multi-threaded programming techniques Experience with trading platforms (e.g., Bloomberg, Tradeweb) Understanding of financial markets, particularly Rates and Credit bonds/derivatives Oustanding experience and knowledge with ION platform Expertise in object-oriented design patterns More ❯
Java Developer with experience of the ION Marketview product set required by a global banking organisation seeking to increase their footprint in London. We are supporting the programme to grow our client's UK business, which currently utilises the ION suite for fixed income trading. This role will be part of an effort to modernise all aspects of … with proprietary platforms. Candidates should have demonstrable experience developing low-latency etrading applications, ideally in FX/Rates and have exposure to the core or custom components of the ION suite in addition to integrating More ❯
Java Developer with experience of the ION Marketview product set required by a global banking organisation seeking to increase their footprint in London. We are supporting the programme to grow our client's UK business, which currently utilises the ION suite for fixed income trading. This role will be part of an effort to modernise all aspects of … with proprietary platforms. Candidates should have demonstrable experience developing low-latency etrading applications, ideally in FX/Rates and have exposure to the core or custom components of the ION suite in addition to integrating More ❯
ION/Marketview Developer required by a global banking organisation seeking to increase their footprint in London. We are supporting the programme to grow our client's UK business, which currently utilises the ION suite for fixed income trading. This role will be part of an effort to modernise all aspects of the stack, scale up and deepen … integration with proprietary platforms. Candidates should have demonstrable experience developing the custom components of the ION suite - this is an essential requirement and will be tested - but the client has additional requirements for Java engineers with core or custom Marketview experience. More ❯
ION/Marketview Developer required by a global banking organisation seeking to increase their footprint in London. We are supporting the programme to grow our client's UK business, which currently utilises the ION suite for fixed income trading. This role will be part of an effort to modernise all aspects of the stack, scale up and deepen … integration with proprietary platforms. Candidates should have demonstrable experience developing the custom components of the ION suite - this is an essential requirement and will be tested - but the client has additional requirements for Java engineers with core or custom Marketview experience. More ❯
ION/Marketview Business Analyst required by a global banking organisation seeking to increase their footprint in London. We are supporting the programme to grow our client's UK business, which currently utilises the ION suite for fixed income trading. This role will be part of an effort to modernise all aspects of the stack, scale up and … deepen integration with proprietary platforms. Candidates should have demonstrable experience working on the custom components of the ION product set and deep knowledge of FX/Rates trading. More ❯
ION/Marketview Business Analyst required by a global banking organisation seeking to increase their footprint in London. We are supporting the programme to grow our client's UK business, which currently utilises the ION suite for fixed income trading. This role will be part of an effort to modernise all aspects of the stack, scale up and … deepen integration with proprietary platforms. Candidates should have demonstrable experience working on the custom components of the ION product set and deep knowledge of FX/Rates trading. More ❯
