Senior Full Stack Software Engineer (React/C#)

Bilue is a digital consultancy that designs and builds smart, user-friendly technology for some of Australia’s most well-known businesses. From mobile apps to beautifully designed web platforms and digital experiences, we create solutions that drive impact and deliver exceptional customer outcomes.

Our culture is people-first and purpose-driven. We’re a down-to-earth, values-led team with offices in Sydney and Melbourne, and a growing presence in Manila. We genuinely enjoy working together, whether we’re solving tough tech problems, brainstorming creative solutions, or grabbing a coffee between meetings. Curiosity is encouraged. Collaboration is second nature.

We value excellence, not ego, and back each other to do great work without micromanagement. With low politics and high trust, it’s a place where delivery people, designers, and engineers genuinely connect, and where everyone has a voice, space to grow, and a little fun along the way.

As a Senior Full Stack Software Engineer at Bilue, you’ll help shape high-quality digital solutions for some of Australia’s most recognisable brands. You’ll work in a high-performing, agile environment where strong engineering judgment, collaboration and quality are non-negotiable.

You’ll be hands-on across the full stack, working with React and C# (.NET) to solve complex problems and deliver well-considered, scalable products. Beyond writing great code, you’ll contribute to technical direction, support others to raise the bar, and help teams deliver work we’re proud to put into the world.

Responsibilities

• Design, build and maintain high-quality full stack applications using React and C# (.NET)
• Contribute to solution design and technical decision-making, balancing delivery with long-term maintainability
• Build and integrate services deployed on AWS, with an understanding of cloud-native patterns
• Work closely with clients and internal teams to understand problems, shape solutions and communicate progress clearly
• Play an active role in agile ceremonies including sprint planning, stand-ups, retrospectives and backlog refinement
• Champion engineering best practices, including code quality, testing, performance and security
• Review code thoughtfully and mentor other engineers through feedback, pairing and knowledge sharing
• Troubleshoot, debug and optimise applications to ensure reliability, scalability and usability
• Contribute to continuous improvement of processes, tooling and ways of working across teams
• Maintain clear documentation to support ongoing development and smooth handover

You’re a Senior Full Stack Software Engineer who takes pride in delivering quality outcomes for clients. You thrive in environments with strong standards, clear expectations and close collaboration, where good engineering judgement, reliability and quality all matter. You take ownership from idea through to production, making thoughtful trade-offs that balance pace with long-term maintainability and client impact.

You’re comfortable operating at speed without cutting corners, enjoy solving complex problems, and communicate clearly with both technical and non-technical stakeholders. You hold yourself and others to a high bar, and actively contribute to raising the standard of engineering and delivery across teams.

You bring:

• Strong commercial experience building frontend applications with React
• Proven backend experience with C# and .NET in production environments
• Solid understanding of RESTful APIs, microservices and system integration
• Hands-on experience deploying or supporting applications on AWS
• Experience working with SQL and database-driven applications
• Familiarity with CI/CD pipelines and modern DevOps practices
• Confidence using Git and working in collaborative codebases
• Strong problem-solving skills with a focus on quality, performance and client outcomes
• Comfort engaging directly with clients and explaining technical decisions clearly
• Proven experience working effectively in agile, cross-functional teams
• A mindset of ownership, accountability and continuous improvement

Life at Bilue

• People-first focus: We’re committed to delivering exceptional outcomes for our clients, but we know it starts with our people. You’ll join a values-led team that’s collaborative, curious, and genuinely cares about doing great work, together.
• Connection that counts: From monthly anchor days and team lunches to our annual offsite, we create intentional moments to connect, collaborate, and celebrate. These aren’t just fun perks — they’re part of how we work and grow together.
• Flexibility that works: We offer hybrid working, with 1–2 days per week in the office. It’s a balance that gives you the space to do your best work, while still creating time to connect and build strong relationships in person.
• Strong internal communities: We actively foster internal communities across tech, design, delivery, and beyond, giving you plenty of chances to connect, share knowledge, and learn from your peers.
• Opportunities to grow: We invest in your development with unlimited access to Go1’s learning library and support from our internal performance coach. Whether you want to deepen your technical skills or grow your leadership potential, we’ll back you.
• Flat structure, real impact: At Bilue, everyone’s voice matters. Our leadership team is hands-on and approachable, and we operate without unnecessary layers. We keep things open and transparent, and your ideas will be heard, no matter your title.

Bilue = Big + Blue Ocean. Are you ready to set sail? Apply now!

NB. This is a full-time position based in Sydney. To be considered, candidates must have unrestricted working rights in Australia.

We believe that having balanced and diverse teams is fundamental to our success. We welcome applicants of all backgrounds and experiences and are committed to fostering an inclusive environment where everyone feels respected and valued. We do not discriminate based on race, religion, national origin, gender identity or expression, age, sexual orientation, marital status, neurodiversity or disability status.