Apex Systems US

Overview We are seeking an experienced Fidessa Developer to join a global Equities Cash Technology team supporting institutional and retail trading businesses. This is a hands-on development role focused on the customisation, enhancement, implementation and support of a highly tailored Fidessa environment. The successful candidate will have deep expertise in Fidessa architecture and a proven track record developing solutions directly within OMS/EMS platforms. This is not a support, QA, business analysis or integration-focused position. We are specifically seeking candidates who have developed and customised functionality inside Fidessa. Key Responsibilities Develop, customise and enhance Fidessa trading applications and workflows. Build custom screens, business logic, order management functionality and workflow automation. Deliver ongoing platform enhancements and participate in Fidessa upgrades. Develop and maintain TCL-based solutions within the Fidessa platform. Integrate external market and trading data feeds, including RTD solutions. Collaborate with technology teams, project managers and business stakeholders on strategic initiatives. Support production trading systems and contribute to DevOps and automation efforts. Required Experience Candidates must demonstrate: Hands-on Fidessa development experience within OMS and/or EMS environments. Strong Fidessa architecture and implementation knowledge. Direct platform customisation including workflow changes, order routing logic, custom screens and business rules. Strong TCL development experience. Experience with Fidessa upgrades in customised environments. Linux/Unix experience. Equities trading systems and order management knowledge. Ability to discuss complex OMS workflow challenges they have personally solved. Technical Skills Experience with a broad range of Fidessa products is highly desirable, including CASE, FBL, TOP (OMAR, TMAR, PMAC), PAIRS, NMS, FIX+, APAS and FDA. Additional technical experience may include: FIX Protocol Python, Shell Scripting, PowerShell Sybase and SQL Server Distributed systems and event-driven architecture Messaging technologies such as IBM MQ, AMPS or Tibco EMS CI/CD, DevOps and automated testing frameworks Desirable Skills Java development experience FDA expertise FTW implementation or development experience Experience within large-scale global investment banking environments

Overview We are seeking a highly capable Chief Engineer to provide technical leadership for a mission-critical data centre environment. The successful candidate will act as the senior technical authority for the site, ensuring the safe operation, maintenance and resilience of critical electrical and mechanical infrastructure. This role is ideal for an experienced Critical Facilities Engineer, Shift Leader, HVAP or Chief Engineer with a strong electrical bias and a solid understanding of cooling infrastructure within a Tier III or Tier IV environment. Key Responsibilities Provide technical leadership across all critical electrical and mechanical systems. Ensure maximum uptime and operational resilience of the facility. Lead incident response, troubleshooting and root cause analysis activities. Review and approve SOPs, MOPs, EOPs and switching schedules. Manage critical maintenance activities and shutdowns. Oversee specialist contractors and service providers. Support compliance, auditing and reporting requirements. Ensure all work is carried out safely in line with site procedures and industry standards. Mentor and develop engineering teams. Technical Requirements Critical Power HV/LV distribution systems UPS systems Standby generators ATS/STS systems Switchgear and protection systems Electrical fault finding and diagnostics Utility-to-rack power path understanding Single Line Diagram (SLD) interpretation Critical Cooling Chillers CRAH/CRAC units Chilled water systems Pumps and pressurisation systems Cooling towers HVAC controls and BMS systems Environmental monitoring Operations Incident management Planned maintenance Reactive maintenance Permit-to-work systems Change management Risk assessments and RAMS Contractor management Desired Qualifications HVAP or AP qualification (strongly preferred) 18th Edition Wiring Regulations HNC/HND, NVQ Level 3, Degree or equivalent in Electrical Engineering IOSH or equivalent H&S qualification Experience within data centres, critical facilities, banking, healthcare or other high-availability environments