AS400 Support Engineer

Insight Global is looking for a AS400 iSeries specialist to join one of our enterprise financial clients local to Plano, TX. They will support critical AS400 systems and applications for the Global Markets business. This role supports the stability and availability of critical trading and transaction-processing platforms used across front, middle, and back-office functions. The focus is on day-to-day production support for AS400/iSeries environments and their upstream and downstream integrations with Linux, Unix, and Windows systems. Responsibilities include real-time monitoring, incident triage, and issue resolution when transactions fail or performance degrades. The role drives incident management end to end-opening tickets and bridges, coordinating with the appropriate technology and business teams, and providing clear, concise status updates until resolution. In addition, the position participates in scheduled contingency and disaster recovery testing, serves as primary support during assigned coverage rotations (including weekends or holidays), and leverages monitoring tools, SQL analysis, runbooks, and basic automation to restore service efficiently and reduce repeat issues.

The role will involve hands-on management of critical batches, Incident Management, Monitoring of critical processes and functional releases. This role requires partnership with Infrastructure and Development partners to maintain a stable and resilient platform. A core level of AS400 resources are required during AMRS shifts to ensure critical processes are completed within SLA to avoid client, financial and regulatory reporting impact.

Failure to react in a timely manner to batch issues could lead to: Client impact: Delayed delivery of client reports, in particular Daily Valuation Margin Reports, delayed notification of breaks to clients and delayed response to client queries Regulatory: Hong Kong regulator (HKEX rule 617) requires DVMR reports to be delivered before midnight Regulatory: NFRR - Failure to make adjustments by ICE Open Interest Management reporting SLA of 5.00 AM ET and LME Commodities Position reporting SLO of.30 AM ET need to be reported to ICE and LME Exchanges Regulatory: Client Money substitution events for EMEA entities are dependent on availability of reconciliations by 6.30 AM ET Collateral Management: Unable to adjust margin calls Operational: Delays / extended hours to complete Operations processes

Must Haves

• 7+ years of AS400 iSeries experience
• 4+ years of Production and Application support experience
• Monitoring experience (for i.e. ITRS Geneos, Splunk, Dynatrace)
• Strong Linux/Unix experience
• SQL experience (Querying databases, Mix of writing from scratch and using run books)
• Experience scripting with Shell and Python for automation and scripting tasks (Intermediate, ability to read and understand code)
• Experienced in batch support and batch releases
• Experience with release tools (Aldon or Turnover)

Nice to Have Skills & Experience

Plusses

• Specifically ITRS- Geneos/Dynatrace monitoring support
• Experience with ticketing applications like Remedy or ServiceNow
• Python automation experience, writing from scratch

Benefit packages for this role will start on the 1st day of employment and include medical, dental, and vision insurance, as well as HSA, FSA, and DCFSA account options, and 401k retirement account access with employer matching. Employees in this role are also entitled to paid sick leave and/or other paid time off as provided by applicable law.