Javascript jobs in United Kingdom

My client, a global provider of financial market infrastructure, is hiring an IAS Analyst to join an established trading systems support team based in the UK. This is a key role within an existing technology function, supporting and implementing critical electronic trading platforms in a fast-paced, business-facing environment.

• Competitive salary (DOE)
• Hybrid working model
• Flexible working arrangements
• Bonus scheme
• Clear internal progression and development opportunities

You will be part of a global technology team responsible for supporting mission-critical trading applications that underpin high-volume electronic trading. The organisation is passionate about leveraging technology to deliver reliable, innovative market access, liquidity, and data solutions. As an IAS Analyst, you will focus on Level 2 application support and system implementation, working closely with Development, QA, and senior engineering teams. You will support production and non-production environments, automate monitoring and deployment processes, and contribute to continuous improvement initiatives across trading systems.

• Monitor and support trading applications, ensuring system stability and performance
• Act as second-line support for incidents and service requests escalated from the business
• Perform installations, upgrades, bug fixes, and enhancements in line with defined change processes
• Build and configure applications with required third-party tools across staging and production environments
• Develop scripts using Shell, PowerShell, Perl, and SQL to automate deployments, monitoring, and system health checks
• Create and maintain operational documentation, including runbooks and troubleshooting guides
• Participate in production issue calls, change reviews, and upcoming project discussions
• Manage changes through the full change lifecycle, ensuring compliance and documentation
• Support incident and request queues in line with ITIL-based support frameworks

Essential:

• Strong experience with Windows Server environments
• Unix / Linux experience (preferably power-user level)
• SQL experience (including T-SQL and database management tools)
• Working knowledge of networking tools (SSH, SFTP, traceroute)
• Scripting experience (PowerShell, Bash, Perl)
• Solid understanding of change management processes
• Experience with monitoring and observability tooling
• Strong grasp of ITIL-based support processes (Incident, Change, Request, Problem)
• Excellent analytical, troubleshooting, and documentation skills
• Proven experience deploying software into controlled environments

Desirable:

• Experience with automation tools (e.g. Ansible, CI/CD pipelines)
• Exposure to HTML, JavaScript, and CSS
• Additional experience working with relational databases

For further information on this job, or other Infrastructure, Application Support, or Systems Analyst roles in the UK, please apply via the link or contact the consultant listed for a confidential discussion. This role is being advertised by a recruitment agency acting as an employment business. Successful applicants may be required to complete standard pre-employment checks in line with client policy.