Senior Engineer

Overview Senior Engineer - Search + Locations. CoStar Group is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. We aim to digitize the world’s real estate, empowering people to discover properties, insights and connections that improve their businesses and lives. This role focuses on driving high-quality software development and technical innovation within the Search and Location Squad, leveraging .NET, OpenSearch, and AWS to architect scalable, high-performance APIs and deliver complex features. What you’ll be doing Technical Excellence Delivery Quality: Build high-quality, scalable, and reliable solutions in collaboration with peers and Tech Leads. Best Practices: Champion and adopt engineering best practices while staying current with industry trends. System Health: Contribute to the System Health and Technical Debt backlog, driving efficiency for owned services. Cross-Domain Influence: Contribute to forums like the dotnet Guild and Architecture Guild, collaborating with Principal Engineers on system improvements. Leadership and Collaboration Mentor Junior Engineers in solution design and delivery best practices. Product Alignment: Develop understanding of the product and business domain; collaborate with Product Owners to meet customer needs. Operational Rigor System Stability: Fulfill on-call duties by responding to and resolving incidents. Proactive Maintenance: Continuously improve processes and software quality to reduce incident frequency, and maintain, update, and patch systems. What Success Looks Like A cohesive and consistent user experience across all products, even with complexity or scale. Design embedded in cross-functional ways of working, influencing product discovery and roadmaps. A strong, empowered team of Designers and Managers delivering their best work. Business results that reflect design’s value: better engagement, retention, and satisfaction. Qualifications 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-centered, 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: 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 experience building high-scale, high-performance backend services. Strong experience with AWS cloud services (ECS, Lambda, CloudWatch). Advanced understanding of OOP principles and their use in complex systems. Knowledge of modern architectural patterns such as microservices and distributed system design. Platform & Delivery Experience Experience designing software for high-scale, high-traffic websites. Proficiency with CI/CD pipelines (e.g., Jenkins) and Git. Familiarity with Docker and containerization. Experience working in Agile environments. Leadership & Collaboration Proven ability to mentor and coach junior engineers. Experience working in cross-functional teams with Product and Technology peers. Experience collaborating with Tech Leads to optimize engineering practices and processes. Desired (Bonus) Qualifications Security: Familiarity with modern application security practices (OWASP). Certifications: AWS, Azure, or GCP Certification. Why join us? We’re the kind of place you can make a real impact, with a workplace culture where you can be you. Hybrid working, strong parental leave, and continuous opportunities to learn and grow in a team that values creativity and innovation. We solve property problems for Australians and beyond and turn possibilities into realities. Equity, Diversity and Inclusion We are committed to fostering an equitable, inclusive work culture and welcome candidates from all backgrounds. If you require adjustments during the process, please contact our Equity, Diversity and Inclusion team at or call . Equal Opportunity and Accommodations CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug-free workplace and perform pre-employment substance abuse testing. If you are a qualified individual with a disability, you may request a reasonable accommodation by visiting our careers site or contacting #J-18808-Ljbffr