Hackajob is collaborating with ONYX Insight to connect them with exceptional tech professionals for this role. Are you a seasoned developer with a passion for building scalable, high-impact software solutions? Do you enjoy making hands-on contributions to cutting-edge technology? At ONYX Insight, we're looking for a Senior Software Developer to join our growing team and help build the future of our tech stack. This is an opportunity to support architecture, develop, and refine the technology that powers the future of renewable energy. With your expertise in modern C# .NET and React, you’ll play a key role in delivering robust solutions that support our core platforms and products. At ONYX Insight, we empower our teams to innovate, solve complex problems, and have a real-world impact. What You'll Do Build and Deliver: Design, develop, and deploy new features across both backend and frontend systems. Collaborate: Work closely with cross-functional teams to create intuitive, high-performance solutions that deliver value to our users. Develop Scalable Solutions: Write clean, maintainable, and scalable code using modern C# .NET (6-9) and React. Support DevOps Practices: Collaborate with platform engineers to support CI/CD pipelines and infrastructure automation, ensuring efficiency and reliability. What You'll Have/be 5 years of experience in commercial software development with a focus on modern C# .NET. Strong hands-on background in React and frontend development (2 years). Experience in application design and microservices architecture. Familiarity with cloud platforms, preferably AWS. Proficiency with relational databases, ideally PostgreSQL. Knowledge of Agile methodologies and modern software delivery practices. Strong communication and collaboration skills, with a proactive mindset focused on delivering tangible results. A passion for solving real-world problems with technology. About ONYX ONYX Insight is a growing technology and engineering organisation in the renewable energy sector. Our vision is to build a more efficient future by becoming the world’s most innovative provider of predictive technology solutions. Our advanced sensing, software and analytics combined with our engineering experience are deployed on wind turbines around the world to maximise production and make turbines more reliable for longer, optimising energy production. ONYX Insight is part of the Macquarie Group. Macquarie is a global financial services group operating in 34 markets in asset management, leasing and asset financing, market access, commodity trading, renewables development, specialist advisory services, capital raising and principal investment. The diversity of the Macquarie Group operations combined with a strong capital position and robust risk management framework has contributed to a 54 year-record of unbroken profitability. For any further information, or to understand our products and services better, please feel free to look through our website: https://onyxinsight.com/ ONYX Insight are an equal opportunity employer and value diversity at our company. We do not discriminate based on race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.