Senior Application & Systems Developer
12 Month Contract + 2 x 12 Month Extension Options
Hybrid Working | NSW, VIC or QLD
Senior Level (EL1 Equivalent)
Baseline Security Clearance Required
We are seeking an experiencedSenior Application & Systems Developerto join a large, complex government transformation program.
This is a hands‐on development role focused on enhancing and maintaining critical business applications, document templates, and web‐based solutions during a period of significant organisational change.
Working within a collaborative technology team, you will play a key role in delivering application improvements, template uplifts, system remediation activities, and urgent business‐driven enhancements.
About the Role
As the Senior Application & Systems Developer, you will work closely with business stakeholders, technical teams, and corporate services to identify requirements, solve complex problems, and deliver high‐quality outcomes.
You will be responsible for:
Delivering enhancements, changes, and application updates using Agile delivery methodologies
Collaborating with business and technology stakeholders to analyse issues and define solutions
Contributing innovative ideas and recommendations to address short, medium, and long‐term challenges
Supporting compliance with organisational policies, governance, risk, and security requirements
Redeveloping, enhancing, and maintaining .
NET applications
Redeveloping and maintaining Microsoft Word templates, including macro and non‐macro solutions
Developing and supporting web‐based applications, systems, and reporting solutions
Assisting with planning, testing, documentation, and deployment of application updates
Contributing to continuous improvement initiatives across the application landscape
Technical Skills & Experience
To be successful, you will demonstrate experience across:
C#, .




NET Framework, .
NET Core and the broader .
NET technology stack
Visual Studio development environment
Microsoft Web API and RESTful architecture
SQL Server
CI/CD pipelines and DevOps practices
Automated testing frameworks
Web application development and support
Microsoft Word template development and maintenance
Essential Requirements
You will have:
Previous experience working within government or large‐scale service delivery environments
A proven ability to manage competing priorities and deliver outcomes in rapid‐paced, changing environments
Experience working within Agile delivery teams using Jira, ServiceNow, or similar tools
Strong problem‐solving, stakeholder engagement, and communication skills
The ability to work independently and take ownership of outcomes
A collaborative and adaptable approach to working across business and technology teams
Contract Details
Initial 12-month contract
Two additional 12-month extension options
Up to 40 hours per week
Hybrid working arrangement with occasional office attendance for workshops and meetings
Locations available across NSW, VIC and QLD
Estimated start date: September ****
Police check required
Must hold a Baseline Security Clearance
ManpowerGroup is committed to being a Diversity Confident Recruiter and encourages applications from people from a diverse range of backgrounds, including people with a disability.
Please indicate your preferred method of communication in your resume and please let us know if you require any reasonable adjustments should you be contacted for an interview.
Aboriginal and Torres Strait Islander people are encouraged to apply.
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📌 Senior Application And Systems Developer (New South Wales)
🏢 Experis Manpowergroup Sp. Z O.O.
📍 New South Wales