Senior Software Engineer

3 days ago

Canberra, ACT, Australia Calleo Full time $120,000 - $180,000 per year

Canberra based, flexible hybrid working arrangement

Initial 12 months + extensions

NV1 clearance or higher required

We're looking for a Senior Software Engineer (Developer) to design and develop advanced ICT solutions that drive key outcomes for one of our key Federal Government clients. You'll work across technologies including C#, .NET, REST APIs, Oracle (11g/12c/PL-SQL), JavaScript, and VB6, contributing to solutions that have a national impact.

This role is perfect for a technically strong developer who thrives on solving complex problems, mentoring colleagues, and working in a collaborative, agile environment.

Key Responsibilities

  • Analyse complex ICT business issues and deliver effective technical solutions.
  • Design, develop, and enhance applications using C#, .NET, REST APIs, Oracle, JavaScript, and VB6.
  • Create and maintain technical documentation and design artefacts.
  • Collaborate with testing, release management, and operations teams to implement changes.
  • Partner with stakeholders to align objectives and ensure successful delivery.
  • Mentor and share knowledge with less experienced engineers.
  • Maintain accurate records and documentation in accordance with Federal Government standards.

About You

You are a seasoned software professional with a passion for innovation and quality. You thrive in collaborative environments and bring both technical expertise and leadership to your work.

You will demonstrate the ability to:

  • Keep up to date with emerging ICT technologies and industry best practices.
  • Build and maintain strong professional relationships with stakeholders and team members.
  • Identify opportunities to improve processes and practices within ICT functions.
  • Mentor and guide junior engineers.
  • Deliver high-quality work within agreed timelines in an agile environment.

What's on Offer

  • Long-term Federal Government contract with potential extensions.
  • Flexible hybrid work arrangements.
  • Opportunity to contribute to high-impact national projects.
  • Collaborative, supportive, and innovative team environment.

Candidates holding NV1 security clearance or higher will be highly regarded due to the nature of this role.

How to apply

Apply directly or for more information on this role, please email  

And to stay up to date on other opportunities, visit our website or follow us on LinkedIn.

Calleo is an equal opportunity employer, and we encourage applications from all people including Aboriginal and Torres Strait Islander peoples.

  • Senior Software Engineer

    6 days ago

    Canberra, ACT, Australia CEA Technologies Pty Limited Full time $120,000 - $180,000 per year

    About UsEstablished in 1983, CEA is an Australian company that designs, develops, manufactures and sustains advanced active phase array radar systems. Our design principles and commitment to investment in research and development ensure innovative thinking, technological skill and quality fabrication are at the heart of our business. We work in partnership...

  • Senior Software Engineering Manager/Architect

    7 days ago

    Canberra, ACT, Australia Helix Technology Services Full time $180,000 - $250,000 per year

    Seeking a highly skilled and experienced Senior Software Engineering Manager/Architect to join our team and help us realise the next generation of integrated, robust, flexible and sustainable Mission Software Solutions.  In this pivotal role you will be an integral part of our technical leadership team, driving innovation, shaping technical direction and...

  • Senior Software Engineering Manager

    2 weeks ago

    Canberra, ACT, Australia Leidos Full time $120,000 - $180,000 per year

    Senior Software Engineering Manager / ArchitectLife Days are the Leidos way of recognising that we all need extra time to take care of life. Accrue up to 12 days of leave per year for your extra time worked.Career defining opportunities, work on bespoke projects with industry leaders to deliver innovative best of breed technology. We're a 'Family Friendly'...

  • Software Engineer

    6 days ago

    Canberra, ACT, Australia Bean IT Full time $80,000 - $120,000 per year

    About UsAt Bean IT, we are passionate about creating innovative software solutions that drive efficiency, reliability, and digital transformation. Our projects range from enterprise-level applications to intelligent data-driven platforms that empower businesses to scale with confidence.We are now seeking a Software Engineer with strong full-stack development...

  • Senior Software Engineer

    5 days ago

    Canberra, ACT, Australia Marvel Professional Services Full time $120,000 - $180,000 per year

    Our Federal Government client is seeking Senior Software Engineers to deliver secure, scalable applications across Java, .NET and modern integration platforms. You'll advance DevOps practices, optimise data models, and ensure robust system integration through RESTful APIs that support critical services.What you'll do Develop, maintain and enhance...

  • Graduate Software Engineer

    22 hours ago

    Canberra, ACT, Australia BRIGHTSPARK LABS PTY LTD Full time $60,000 - $80,000 per year

    The RoleAs a Graduate Software Engineer, you will:Work on a variety of projects under the guidance of Senior Engineers.Have a high degree of autonomy, with remote working as the norm.Identify client needs and deliver tailored solutions.Design systems that cover the full spectrum of software, hardware, networks, and storage.Write and extend code from fluid,...

  • Software Engineers

    24 hours ago

    Canberra, ACT, Australia Rubix Solutions Pty Ltd Full time $120,000 - $150,000 per year

    Our client is delivering complex, high-stakes software and systems across Australia's defence and intelligence programs — where innovation meets purpose. They're seeking talented Software Engineers and Developers to join a mission-driven environment that combines technical excellence with national impact.The Opportunity Design and develop secure, modern...

  • Research Software Engineer

    3 days ago

    Canberra, ACT, Australia The Australian National University Full time $118,399 - $126,607 per year

    Classification: ANU Officer 8 (Specialist)Salary package: $118,399 – $126,607 per annum plus 17% superannuationTerms: Continuing Contingent funded (3 years)Position Description and Selection Criteria: PD&PEWER_ANU08_RSEThis position is Continuing (Contingent Funded). The funding that supports this project has an expected end date of December...

  • Embedded Software Engineer

    1 week ago

    Canberra, ACT, Australia Seitec Full time $120,000 - $180,000 per year

    About SEITECOur vision is to become a global leader in seismic target detection and tracking solutions. Following our commercialisation in 2021, we have developed two core products NIGHTINGALE and UXOTRACKS, our software-defined, deployable seismic sensor systems to help our customers see things, find things and anticipate things.Our products leverage...

  • EOI Software Engineers

    5 days ago

    Canberra, ACT, Australia Kinexus Full time $120,000 - $180,000 per year

    These roles require a minumum of an Negative Netting 2 or Top Secret Positive Vetting (TSPV) security clearance. These opportunities does not have the ability to obtain sponsorship for a security clearance.Our federal government and private sector clients are looking for Software Engineers to deliver and maintain Australia's strategic advantage and...