Senior Middleware & Application Administrator (New South Wales)

Senior Middleware & Application Administrator (New South Wales)

10 Aug
|
HPS
|
New South Wales

10 Aug

HPS

New South Wales

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
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, reliable 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 professional experience will also be considered
Experience
Minimum
5 years' experience
administering enterprise middleware platforms
Strong experience supporting production environments
Experience with Java application servers
Experience supporting high‐availability enterprise platforms
Experience within
banking, financial services or payment systems
is highly desirable
Technical Skills
JBoss / WildFly
IBM WebSphere
Java
Bash / Shell Scripting
JVM Performance Tuning
SSL Certificates
Reverse Proxy
Oracle Database
Git
Monitoring tools (Grafana, Prometheus, Zabbix, Centreon or equivalent)
Incident, Problem & Change Management
Docker
Jenkins
Ansible
Terraform
ELK Stack
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 & 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.
#J-*****-Ljbffr

📌 Senior Middleware & Application Administrator (New South Wales)
🏢 HPS
📍 New South Wales

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