Join HPS Australia and Power the Future of Digital Payments Hightech Payment Systems (HPS) is a leading global fintech company delivering innovative payment software and solutions to financial institutions around the world. Through our flagship platform, PowerCARD, we empower banks, payment processors, fintechs, retailers and payment networks across 95+ countries to deliver secure, reliable and seamless payment experiences.

With more than 1,400 employees worldwide, HPS is recognized as a trusted technology partner, helping over 500 financial institutions modernize their payment ecosystems through cutting-edge technologies, operational excellence and continuous innovation. About HPS Australia HPS Australia is the newest member of the HPS global family and plays a strategic role in expanding our presence across the Australian market. Based in Sydney, our teams work closely with colleagues across Europe, Africa, Asia and the Middle East to support mission-critical payment platforms operating around the clock.

As our Australian business continues to grow, we are looking for talented technology professionals who thrive in high-availability environments and are passionate about enterprise infrastructure, automation and operational excellence.

About the Role We are looking for an experienced Senior Middleware & Application Administrator to join our Platform Operations team in Sydney.

In this role, you will be responsible for the administration, optimisation and continuous improvement of the middleware platforms supporting HPS's mission-critical payment applications. You will ensure the availability, security and performance of our enterprise environments while supporting business-critical services operating 24/7.

Working alongside Infrastructure, Development, Security and Project teams across multiple international locations, you will act as the technical reference for middleware technologies, contribute to platform modernization initiatives and play a key role in maintaining world-class payment services.

Key Responsibilities Middleware Administration

Install, configure and administer enterprise middleware platforms including JBoss/WildFly, IBM WebSphere, Apache Tomcat and Apache HTTP Server

Deploy and maintain Java enterprise applications across Development, Test, UAT and Production environments

Perform platform upgrades, migrations and lifecycle management

Maintain middleware configurations and technical documentation





Execute preventive maintenance and platform health checks

Production Support

Provide Level 3 support for business-critical production environments

Troubleshoot and resolve complex middleware and application incidents

Perform root cause analysis and implement permanent corrective actions

Participate in Incident, Problem and Change Management processes

Support production releases and maintenance activities

Participate in an on-call support rotation

Ensure platform availability in accordance with Service Level Agreements (SLAs)

Performance & Platform Optimization

Monitor platform performance using enterprise monitoring solutions

Analyse JVM performance, memory utilisation and application response times

Optimise middleware configurations to maximise stability and performance

Conduct capacity planning and proactively identify operational risks

Recommend infrastructure improvements to support business growth

Security & Compliance

Apply middleware patches, upgrades and security fixes

Implement secure configuration standards and platform hardening

Monitor security advisories and vulnerability assessments

Collaborate with Security Operations teams to remediate identified risks

Support internal and external compliance audits

Automation & Continuous Improvement

Develop automation scripts to improve operational efficiency

Contribute to CI/CD initiatives and deployment automation

Improve monitoring, alerting and operational reporting

Identify opportunities to simplify operational processes and increase platform reliability

Technical Leadership

Act as the subject matter expert for enterprise middleware technologies

Provide technical guidance to Infrastructure, Development and Project teams

Review solution architectures and infrastructure designs

Mentor junior engineers and promote knowledge sharing

Contribute to technical standards, best practices and strategic platform decisions About You You are an experienced Middleware Administrator who enjoys working within complex enterprise environments supporting highly available platforms.





You combine strong technical expertise with excellent troubleshooting skills and are passionate about delivering secure, stable and high-performing technology solutions.

You are proactive, collaborative and comfortable working in an international environment supporting mission-critical payment systems.

What We're Looking For Qualifications

Bachelor's degree in Computer Science, Information Technology, Engineering or a related discipline

Equivalent skilled experience will also be considered Experience

Minimum 5 years' experience administering enterprise middleware platforms

Strong experience supporting production environments

Experience with Java application servers

Strong Linux administration skills

Experience supporting high-availability enterprise platforms

Experience within banking, financial services or payment systems is highly desirable Technical Skills Essential

JBoss / WildFly

IBM WebSphere

Apache Tomcat

Apache HTTP Server

Linux (RedHat, Oracle Linux, CentOS)

Java

Bash / Shell Scripting

JVM Performance Tuning

SSL Certificates

Reverse Proxy

Load Balancing

Oracle Database

PostgreSQL

Git

Monitoring tools (Grafana, Prometheus, Zabbix, Centreon or equivalent)

Incident, Problem & Change Management Desirable

Docker

Kubernetes

Jenkins

Ansible

Terraform

ELK Stack

Nginx

DevOps practices

AWS, Azure or Google Cloud Platform (GCP) Personal Attributes

Strong analytical and problem-solving skills

Excellent communication and stakeholder management

Customer-focused mindset

High level of ownership and accountability

Ability to perform under pressure in production environments

Strong organisational skills and attention to detail

Passion for continuous improvement and operational excellence Why Join HPS Australia? At HPS Australia, you'll join a fast-growing global fintech company at the forefront of digital payments.

We offer

Opportunity to work on mission-critical payment platforms used worldwide

Exposure to large-scale enterprise technologies and international projects A collaborative, multicultural and innovative work environment

Continuous learning and career development opportunities The chance to make a real impact within a rapidly expanding Australian business

Competitive remuneration and long-term career growth If you're passionate about enterprise middleware, platform operations and delivering technology that powers millions of secure payment transactions every day, we'd love to hear from you.

📌 Senior Middleware & Application Administrator (Sydney)
🏢 HPS
📍 Sydney