Technical Lead Domain is a leading property technology and services marketplace, recently joined by CoStar Group. The Technical Lead drives platform strategy and execution for the Identity & Public Platform squad, ensuring secure, reliable access to Domain's products. Responsibilities Collaborate with stakeholders on team roadmap and priorities Execute and deliver on the roadmap Direct line management for all engineers in the squad Drive work and epic breakdown for effective estimation, capacity planning and delivery Manage and unblock technical dependencies with other teams where required Champion and adopt engineering best practices Accountable for system health and the tech‑debt backlog for owned services Improve engineering efficiency for your team Accountable for reporting on delivery metrics for your team Mentor and coach software engineers in progressive engineering practices Participate in and contribute to cross‑domain technology forums and guilds Collaborate with Principal Engineers and Technology Leaders to drive solution design for large initiatives Be an ambassador for the Engineering brand internally and externally Elevate and elevate to tech leaders where large investment in tech debt and tech initiatives is required Build a deep understanding of the product and business domain Hands‑on where necessary with a focus on initiatives that will help 10× the team Perform code reviews where necessary Facilitate team ceremonies where necessary Qualifications Bachelor’s Degree in a relevant technical specialisation Experience leading a team of engineers Experience designing software solutions for scale Experience with high‑traffic, mission‑critical public‑facing services Experience optimising engineering practices and processes Evidence of data‑informed decision making Experience working with a common cloud platform such as AWS, Azure, and/or GCP Experience implementing DevOps practices and CI/CD Experience working in Agile environments Experience mentoring more junior engineers Deep expertise in at least one programming language and tech stack Understands shift‑left testing and how to implement it in practice Familiar with functional and object‑oriented programming Familiar with document and relational data persistence models Familiar with cloud design patterns Familiar with TDD, BDD and Domain Driven design Familiar with synchronous (API) and async (Messaging) integration patterns Familiar with modern application security practices (OWASP) Squad specific experience: C# / .NET 8 and ASP.NET Core for distributed, mission‑critical backend services Strong understanding of OAuth2, OpenID Connect and token lifecycle management (PKCE, federation, refresh tokens, assertion grants) Experience with identity platforms: multi‑tenant authentication, social login federation, and fine‑grained authorization Familiar with relational data persistence (PostgreSQL, MySQL/Aurora) and NoSQL (DynamoDB, Redis) Highly regarded additional experience: product/application development, familiarity with Duende IdentityServer, migration or integration between identity providers, asynchronous integration patterns (SNS/SQS, EventBridge), API gateway platforms, fine‑grained authorization systems (AuthZed/SpiceDB, OpenFGA), TypeScript / Node.js for AWS Lambda and infrastructure‑as‑code (CDK), React / Next.js or other modern web frontend frameworks, AWS or other cloud platform certification Equity, Diversity and Inclusion Domain is enthusiastically committed to fostering an equitable and inclusive work culture, actively seeking candidates from all lived experiences, including people with disabilities, all ages, ethnicities, cultures, faiths, sexual orientations and gender identities. We provide an equitable recruitment process for people with disability and offer accommodations. If you require adjustments during the process, we are here to support. Equal Employment Opportunity CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug‑free workplace and perform pre‑employment substance abuse testing. 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 committed to compliance with all fair employment practices regarding citizenship and immigration status. #J-18808-Ljbffr