Join to apply for the Lead Back-End Software Engineer (.NET / AWS Serverless) role at Bilue 1 day ago Be among the first 25 applicants Join to apply for the Lead Back-End Software Engineer (.NET / AWS Serverless) role at Bilue 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. About the Role We’re looking for a Lead Back-End Software Engineer to join our high-performing team at Bilue. In this hands-on leadership role, you’ll be responsible for designing, developing, and optimising high-quality backend systems in a modern .NET environment. You’ll work across cloud-native solutions using AWS Serverless technologies like Lambda and Fargate, as well as MVC/ASP.NET web applications and .NET WPF desktop applications. You’ll play a key role in delivering robust, secure, and scalable APIs and services that meet the high standards expected by our clients. As a senior technical voice in the team, you’ll lead by example when it comes to clean code, mentoring others, and driving continuous improvement across delivery practices. Responsibilities Design and build scalable, high-performance backend services using .NET/C#, with a focus on quality, maintainability, and performance Lead the development of cloud-based APIs and microservices in an AWS Serverless environment, including Lambda, Fargate, API Gateway, and supporting infrastructure Contribute to the development and maintenance of MVC/ASP.NET web applications and .NET WPF desktop applications Collaborate closely with engineers, designers, and product managers to align on architecture, scope, and solution design Write and enforce high standards for clean, well-documented, and testable code Implement best practices for CI/CD, including automation, deployment pipelines, and infrastructure-as-code Drive robust testing practices and ensure backend systems are resilient, secure, and observable Lead code reviews, provide mentoring and technical guidance to team members, and support professional growth Stay up to date with emerging technologies and trends, especially in the .NET and cloud-native space, and bring that knowledge back to the team Contribute to architectural discussions and help shape backend strategy across client projects About You 6 years of experience in backend development using .NET/C#, with demonstrated leadership or mentoring experience Hands-on experience with AWS, particularly Lambda, Fargate, API Gateway, and related serverless services Solid experience building and maintaining cloud-based APIs and microservices, with a strong understanding of scalability, performance, and security Proficient in building MVC/ASP.NET web applications and WPF desktop applications Comfortable working with CI/CD pipelines, automated testing frameworks, and modern DevOps practices Strong communicator, able to explain technical decisions clearly to developers and stakeholders alike Experienced working in Agile environments with cross-functional delivery teams Passionate about software craftsmanship and continuous improvement Proactive, self-motivated, and capable of driving quality outcomes independently or as part of a team Life at Bilue People-first focus: We’re committed to delivering exceptional outcomes for our clients, but we know it all starts with our people. You’ll join a values-led team that’s collaborative, curious, and genuinely cares about doing great work, 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 in person and build strong team relationships. 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’re looking to deepen your technical skills or grow your leadership potential, we’ll back you. Connection that counts: From monthly anchor days and team lunches through to annual offsites, we create intentional moments for our team to connect, collaborate and celebrate. These aren’t just fun perks, they’re part of how we work and grow together. 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. Strong internal communities: We actively foster internal communities at Bilue, giving you plenty of chances to connect, share knowledge, and learn from your peers across tech, design, delivery, and beyond. 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. We are a 2024 Circle Back Initiative Employer – we commit to respond to every applicant. Seniority level Seniority level Mid-Senior level Employment type Employment type Full-time Job function Job function Consulting, Engineering, and Information Technology Industries IT Services and IT Consulting Referrals increase your chances of interviewing at Bilue by 2x Get notified about new Dotnet Developer jobs in Sydney, New South Wales, Australia. 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