A global fintech organisation is seeking a Senior Application Support Engineer to support a live, mission-critical trading technology platform used by major financial institutions worldwide.

This role sits within the global operations team, responsible for investigating complex production incidents, performing deep root cause analysis, and ensuring the stability of a high-availability platform operating across multiple regions.

We are looking for a technically strong troubleshooting engineer - someone who can investigate deeply, operate confidently in Linux environments, and communicate clearly with engineering teams and clients.

 Auckland-based | Hybrid working | Global support function

 What You’ll Be Doing

• Providing Level 2+ technical application support across a complex global platform
• Performing deep log analysis and forensic troubleshooting to identify root causes of incidents
• Investigating issues across application, OS, network and database layers
• Supporting Linux environments using command-line tools and system diagnostics
• Diagnosing connectivity and latency issues across network paths
• Executing structured incident response and change management processes (ITIL)
• Writing detailed technical investigation notes and engineering handovers
• Collaborating with global teams across Europe, North America and APAC

This is a role for someone who enjoys investigating complex systems and solving difficult technical problems, not simply escalating tickets.

 What We’re Looking For:

We are particularly interested in engineers with strong experience across:

Linux / Operating Systems: Advanced Linux CLI troubleshooting / Process monitoring and system investigation / Log file analysis in production environments

Networking: Diagnosing connectivity and latency issues / Understanding of TCP/UDP and the OSI model / Ability to verify network paths and isolate failures

Databases: SQL proficiency for data investigation and schema navigation / Ability to identify and escalate database performance issues

Scripting & Logic: Ability to read and interpret logic scripts / Understanding application behaviour through scripts and configuration 

Root Cause Investigation: Deep-dive troubleshooting across logs and system metrics / Ability to perform structured technical RCA investigations

Operational Processes:  Experience working within ITIL-based incident and change management frameworks / Tools such as Jira, ServiceNow, or similar

 Highly Regarded:

• Creating or modifying scripts (Java / Python / shell)

• Investigating network traffic or PCAP logs

• Supporting messaging, middleware or workflow systems

• Experience with capital markets or trading technology environments

• Knowledge of FIX protocol (4.x / 5.x)

• Understanding of pre-trade / trade / post-trade workflows

• ITIL v3 or v4 certification

 The Good Bits:

• Hybrid working
• Small, high-calibre team
• Direct engagement with a major global client
• International collaboration across multiple regions
• Genuine ownership of incidents and resolution
• Clear handover and onboarding from current incumbent

If you are a senior application support engineer who enjoys deep troubleshooting, structured environments, and professional client interaction — this is a rare opportunity.

Please note - this role is Auckland-based and requires full working rights in New Zealand. Regret: no overseas applicants. 

Immediate start preferred - Apply now or reach out confidentially.