Principal Application Developer

Current Jobs; City of Parramatta; Hybrid; AUD 154,000 - 178,000; Full time

Job summary

The Department of Planning, Housing and Infrastructure (DPHI) is seeking a Principal Oracle Developer in Parramatta. You will lead design, development and modernisation of Oracle-based enterprise applications across NSW, shaping critical services and outcomes.

Enjoy flexible working in a hybrid office setting while mentoring teams and guiding architecture directions. Key responsibilities include delivering scalable, secure solutions, managing full software lifecycle, and collaborating with

Qualifications

• Extensive experience designing, developing and supporting Oracle enterprise applications.
• Experience with Oracle Forms, Oracle APEX, PL/SQL and Oracle Database.
• Strong integration and security on large-scale systems.
• Proven ability to lead technical design and provide architecture guidance.

Responsibilities

• Lead design, development, enhancement and modernisation of Oracle-based enterprise apps.
• Mentor developers and drive DevOps practices across teams.
• Translate business needs into scalable, secure technical solutions.
• Oversee lifecycle from analysis through deployment and support.

Skills

Oracle Forms

Oracle APEX

PL/SQL

Database design

SQL

Integration design

Security and auth

DevOps practices

Architecture guidance

Education

Tertiary qualification in a relevant discipline

Industry certification in DevOps, cloud or architecture

Tools

Oracle Database

REST Web Services

SOAP Web Services

Oracle integration technologies

Enterprise messaging

Job description

Together, we shape thriving communities, public services and places across NSW

• Lead the design and delivery of complex digital application solutions that support critical services and outcomes across NSW
• Temporary (Up to 30 Nov 2028) full-time opportunity,
• Office location based in Parramatta with flexible working supported
• Salary relative to experience, and ranges from $154,231 to $178,369 + super

Join our team and shape your world in a workplace that empowers you to do your best work and build a meaningful career. In this role, you will contribute to shaping lives and communities across NSW, while shaping your own career. You will enjoy flexible work options, varied and impactful projects, and a vibrant, diverse team culture built on collaboration, inclusion and support. We are creating a workplace where everyone belongs and where you can balance work, life and wellbeing.

We're looking for a Principal Application Developer to provide technical leadership in the design, development and modernisation of Oracle-based digital solutions that deliver meaningful outcomes for the people of NSW.

The role

In this role, you will lead the design, development, enhancement and modernisation of critical oracle-based enterprise applications that support key services across the Department. You will work within a high-performing, collaborative and diverse team, partnering closely with stakeholders to translate complex business needs into scalable, secure and maintainable technical solutions.

You will contribute across the full software development lifecycle, from business analysis and solution design through to development, testing, deployment, optimisation and ongoing support. As a Principal Oracle Developer, you will provide technical leadership across a diverse Oracle application portfolio, including Oracle Forms, Oracle APEX, PL/SQL, Oracle Database technologies and enterprise integration services. You will be responsible for maintaining and modernising legacy applications while guiding the delivery of modern, cloud-enabled and user-centric solutions. You will champion development standards, architecture principles, secure coding practices, DevOps approaches and continuous improvement, while mentoring developers and contributing to strategic technology direction across the Department.

What you will bring to the role:

• Extensive experience designing, developing and supporting enterprise applications using Oracle technologies, including Oracle Forms, Oracle APEX, Oracle Database, PL/SQL, SQL and Oracle development frameworks.
• Demonstrated expertise in both legacy and modern Oracle application development, including the maintenance, enhancement, modernisation and migration of Oracle Forms-based applications and the delivery of contemporary web-based solutions using Oracle APEX.
• Strong database development and performance tuning skills, including complex PL/SQL programming, package development, stored procedures, triggers, query optimisation, indexing strategies, data modelling and database performance analysis.
• Experience designing and implementing integration solutions using REST and SOAP web services, APIs, XML, JSON, Oracle integration technologies and enterprise messaging patterns.
• Proven ability to translate business requirements into practical technical solutions, including application architecture, database design, integrations and user interface development.
• Demonstrated experience leading technical design activities, performing code reviews, establishing development standards and providing architectural guidance across multiple application teams.
• Experience developing secure, scalable and reliable enterprise applications, applying best practices in security, authentication, authorisation, auditing and data protection.
• Strong knowledge of Oracle application lifecycle management, including source control, automated deployment, testing frameworks, release management and DevOps practices.
• Strong stakeholder engagement, communication and leadership skills, with the ability to analyse and resolve complex application, integration and database issues, mentor developers, foster knowledge sharing and contribute to continuous improvement and engineering best practices across the organisation.

What is an essential requirement:

• Tertiary qualification in a relevant discipline and/or equivalent experience.
• Industry-recognised certification in DevOps, cloud or application architecture, or willingness to obtain within six months.
• Demonstrated experience delivering complex application development and support services.

About Us

At the Department of Planning, Housing and Infrastructure (DPHI), you could shape your world while helping us shape the future of NSW. Together, we create vibrant communities, places and precincts, and manage land, assets and property.

(We are a high-performing organisation that proudly reflects the communities we serve. Our diversity strengthens our cultural capability and enables us to make a meaningful difference in the lives of people across NSW. As an inclusive and accessible workplace, we value your contribution, lived experience and cultural knowledge, and we want you to feel supported, connected and empowered to succeed. With flexible work arrangements, job share options, workplace adjustments and various employee affinity groups, we are here to help you thrive every day.

Join us

Ready to shape your world through meaningful digital work?

Applications close 11:55pm Sunday 11 October 2026

Should you require further information about the role please contact Mark Nigroh (Manager Application Development & Support) at [e-mail]

A talent pool may be created for ongoing and temporary opportunities of the same role or role type that may become available over the next 18 months.

Check out our Aboriginal applicants guide to assist with applying for the role or contact our Aboriginal Career pathways team for a yarn.

We encourage and support applications from people with disability. Please reach out to us to discuss any accommodations or adjustments that may be needed during the recruitment process, ensuring that you have every opportunity to showcase your talent, skills, and potential. Contact the Talent Team via [e-mail] or [phone] - HR Support, option 2, DPHI People Advisory, option 1 and reference 'Request an Adjustment - Job Title and Reference Number'.

Please note to be eligible to apply for this position you must be an Australian or New Zealand citizen or permanent resident or hold a valid Australian working Visa for the duration of the appointment. This role is subject to standard pre-employment checks, including a criminal record check.

Role Description

Advertised: 28 Sep 2026 AUS Eastern Standard Time
Applications close: 11 Oct 2026 AUS Eastern Daylight Time