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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # ION SME/Application Support Engineer - **Company:** Hunter Bond - **Location:** London, UK - **Salary:** £260,000.0 - **Contract:** Temporary contract - **Skills:** Algorithmic Trading, JIRA, System Configuration, Software Design Documents, Linux, Disaster Recovery, Financial Information EXchange, SQL Databases, Systems Integration, Tcl (Programming Language), Microsoft Transaction Server, Scripting, Sybase, Git - **Published:** August 10, 2026 - **Apply:** https://www.careerboard.com/pt/en/find-jobs-in-United-Kingdom/-174CC1C4077E2DBE6A/ ## About the Role * Extensive experience supporting and delivering the ION Trading Platform within Investment Banking. * Strong understanding of Front Office Fixed Income trading environments. * Proven experience delivering end-to-end ION implementations and platform integration. * Experience with ION architecture, deployment and platform configuration. * Strong knowledge of electronic trading connectivity and market infrastructure. * Experience integrating ION with internal trading platforms and external market venues. * Strong understanding of the complete trade life cycle and Straight Through Processing (STP). * Experience leading complex technical projects from design through production. * Strong stakeholder management skills across Front Office, Technology and Business teams. Technical Skills: ION Trading Platform, ION MMI, ION MDATA, PXE, Trading Tools, VMO/VMQ, RFP Gateway, STP Server, Linux, SQL/Sybase, TCL Scripting, FIX Protocol, Bloomberg, Tradeweb, MarketAxess, BrokerTec, MTS, JIRA, Git ## Description We're looking for an experienced End-to-End ION Subject Matter Expert to lead the design, implementation, integration and support of a global ION trading platform within a Front Office Investment Banking environment. This is a hands-on role requiring deep expertise across the full ION ecosystem, working closely with Front Office users, development teams, infrastructure, vendors and business stakeholders to deliver strategic platform enhancements and maintain a highly available electronic trading environment. Key Responsibilities * Act as the technical SME for the end-to-end ION platform across multiple business areas. * Lead the architecture, design and implementation of new ION environments and platform enhancements. * Own technical delivery for ION-related projects, upgrades, migrations and strategic initiatives. * Design and implement integrations between ION and internal/external trading systems. * Support the complete trade life cycle from order capture through execution, confirmations and downstream processing. * Provide technical leadership during production releases, upgrades and disaster recovery activities. * Troubleshoot complex production issues across Front Office trading applications. * Work closely with traders, developers, infrastructure teams and third-party vendors to resolve business-critical issues. * Define best practices, standards and operational procedures for the ION platform. * Produce High-Level and Low-Level Design documentation, architecture diagrams and technical documentation. * Mentor engineers and provide technical leadership across the wider application support and engineering teams. ## Related Videos - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Microservices architecture as a key element in building trading systems for global finance markets](https://www.wearedevelopers.com/videos/1196-microservices-architecture-as-a-key-element-in-building-trading-systems-for-global-finance-markets) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) - [Why make use of an integration platform in today's software developments and infrastructure?](https://www.wearedevelopers.com/videos/758-why-make-use-of-an-integration-platform-in-today-s-software-developments-and-infrastructure) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Everything a Developer Needs to Know About MCP with Neo4j](https://www.wearedevelopers.com/magazine/604-everything-a-developer-needs-to-know-about-mcp-with-neo4j) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Best Companies to work for in London: Top 25 Companies in 2023](https://www.wearedevelopers.com/magazine/187-best-companies-to-work-for-in-london-top-25-companies-in-2023) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london)