Senior Engineer

Senior Engineer – Search + Locations Job Description About CoStar Group CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index and the NASDAQ 100, CoStar Group is on a mission to digitize the world’s real estate, empowering all people to discover properties, insights and connections that improve their businesses and lives. With over 35 years of experience, we continuously refine and transform our approach to deliver truly unique and valuable offerings. About Domain Domain is a leading property technology and services marketplace, home to the Domain, Allhomes and Commercial Real Estate (CRE) platforms. In 2025, Domain became part of CoStar Group, a global leader in commercial real estate information, analytics, online marketplaces and 3D digital twin technology. Together, they are dedicated to digitising the world’s real estate, empowering all people to discover properties, insights, and connections that improve their businesses and lives. Role Overview The Senior Engineer plays a critical role in driving high-quality software development and technical innovation within the Search and Location Squad. They help shape the squad’s technical direction by architecting scalable, high-performance APIs, writing and reviewing high-quality code, and ensuring all technical solutions align with Domain’s broader engineering strategy. What You’ll Be Doing Deliver high-quality, scalable, and reliable solutions in collaboration with peers and Tech Leads. Champion and adopt Engineering best practices while staying current with industry trends and applying them judiciously. Actively contribute to the System Health and Technical Debt backlog, driving engineering efficiency for owned services. Contribute expertise to forums such as the dotnet Guild and Architecture Guild, collaborating with Principal Engineers on system improvements. Mentor Junior Engineers in solution design, delivery best practices, and product alignment. Develop a deep understanding of the product and business domain, collaborating with Product Owners to ensure solutions meet customer needs. Fulfill on‑call duties by responding to and resolving incidents. Continuously improve processes and software quality to reduce incident frequency, actively maintain, update, and patch systems. What Success Looks Like A cohesive and consistent user experience across all products, even under complexity or scale. Design embedded into cross‑functional ways of working, influencing product discovery and roadmaps. A strong, empowered team of Designers and Managers doing the best work of their careers. Business results that reflect design’s value: better engagement, retention, and satisfaction. Basic Qualifications Bachelor’s degree or equivalent. 10+ years in product design (UX/UI), including 5+ years in a design leadership role. A strong portfolio that reflects user‑centred, data‑informed design solutions across complex products. Experience in agile environments and cross‑functional collaboration. Preferred Qualifications and Skills Deep knowledge of design systems and scalable design practices. A passion for mentoring and developing high‑performing teams. Strong influencing skills: you’re seen as a strategic partner, not just a service function. Education Degree in Computer Science, Software Engineering, or a related field. Core Technical Expertise Deep expertise in .NET and C#, with strong experience building high‑scale, high‑performance backend services. Strong practical experience with AWS cloud services, including ECS, Lambda, and CloudWatch. Advanced understanding of Object‑Oriented Programming (OOP) principles and their practical application in complex systems. Solid knowledge of modern architectural patterns such as microservices and distributed system design. Platform & Delivery Experience Experience designing software solutions built for high scale and high traffic websites. Proficiency with CI/CD pipelines (e.g., Jenkins) and Git version control. Familiarity with containerization technologies like Docker. Experience working effectively within Agile environments. Leadership & Collaboration Proven ability to mentor and coach more junior engineers. Experience working in cross‑functional teams (collaborating effectively with Product and Technology peers). Experience collaborating with Tech Leads to optimize engineering practices and processes for team efficiency. Desired (Bonus) Qualifications Security: Familiarity with modern Application Security Practices (OWASP). Certifications: AWS, Azure, or GCP Certification. Why Join Us? We’re a place where you can make a real impact. Our culture supports creativity and innovation, and we solve property problems for Australians and beyond every day. We encourage our people to see possibilities and turn them into realities. Perks of the Role Hybrid working First‑rate parental leave Continuous opportunities to leap, learn, and grow in a team that values creativity and innovation. What’s Next? We will give your application the thoughtful attention it deserves and get back to you as soon as possible. If there’s a match, one of our recruitment consultants will reach out so keep your phone handy We’re genuinely excited about the chance to work together and make a meaningful impact. Equity, Diversity and Inclusion at Domain Domain is committed to fostering an equitable, inclusive work culture that reflects our customers and communities. We actively seek candidates from all lived experiences, including people with disability, all ages, ethnicities, cultures (including Aboriginal and Torres Strait Islander Peoples), faiths, sexual orientations, and gender identities (including trans and non‑binary people). We provide an equitable recruitment process for people with disability and welcome adjustments during the process. Equal Employment Opportunity Statement CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug‑free workplace and perform pre‑employment substance abuse testing. CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index and the NASDAQ 100, CoStar Group is on a mission to digitize the world’s real estate, empowering all people to discover properties, insights and connections that improve their businesses and lives. We are committed to creating a diverse environment and are proud to be an equal opportunity workplace and affirmative action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. CoStar is also committed to compliance with all fair employment practices regarding citizenship and immigration status. If you are a qualified individual with a disability or a disabled veteran, you may request a reasonable accommodation if you are unable or limited in your ability to use or access as a result of your disability. You can request reasonable accommodations by calling 1‑855‑840‑1715 or by sending an email to #J-18808-Ljbffr