Application Support Engineer – Weekend Shift

oneZero Financial Systems

Application Support Engineer supporting client-facing operations and product implementations for financial technology. Responsible for handling operational issues and providing support across various channels.

Posted 4/16/2026full-timeSydney • 🇦🇺 AustraliaMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

Python

About the role

Key responsibilities & impact

Support customer-facing operations by responding to operational and business issues.
Plan, deploy, and support client implementations of oneZero's products.
Execute weekend activities in coordination with the Monday-through-Friday support team.
Carry out upgrades and migrations for the oneZero application software.
Process client service requests and provide application support to clients over the phone, email, and live chat.

Requirements

What you’ll need

3+ years in financial markets production operations, site reliability engineering, or technical support for mission-critical systems.
Basic Windows OS system administration skills and networking knowledge (diagnostics, troubleshooting, performance analysis).
Experience using monitoring and observability tools to diagnose system behavior and performance issues.
Demonstrated ability to analyze complex technical issues, evaluate remediation options, and make sound decisions under time pressure.
Clear written and verbal communication skills for incident documentation, client interaction, and cross-team collaboration.
Scripting (Python, Bash, PowerShell or similar) for simple automation and reporting.
Direct experience supporting or onboarding technical client integrations (readiness checks, configuration validation, data flow verification).
Familiarity with bridging, aggregation, and reporting integration patterns (or demonstrable ability to learn them rapidly).

Benefits

Comp & perks

Competitive bonus structure
Flexible hybrid working arrangements
Company-provided parking
Daily lunch in the office
Private health insurance
Monthly wellbeing program subscription

ATS Keywords

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Hard Skills & Tools

Windows OS system administrationnetworkingmonitoring toolsobservability toolsscriptingPythonBashPowerShelltechnical supportclient integrations

Soft Skills

analytical skillsdecision makingcommunication skillsincident documentationclient interactioncross-team collaborationtime management