Overview
Lender - Principal Software Engineer (React / C# / AWS)
CoStar Group (NASDAQ : CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. CoStar Group is on the S&P 500 Index and the NASDAQ 100. We are 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 develop CoStar's customer-facing Real Estate Analytics products and specifically the CoStar for Lenders product development team, which focuses on data-intensive applications, high-volume data pipelines, and secure, scalable systems.
This role is located in San Diego (UTC Area) and is in office Monday through Thursday with work from home on Friday.
Responsibilities
- Work in partnership with Product and Technology leadership to deeply understand complex functional requirements and drive implementation of technical solutions.
- Collaborate with development teams to determine the architectural direction based on project needs, effort, resourcing, and timing.
- Understand existing systems and document them so you become a go-to source of architectural information across multiple systems.
- Act as an architectural subject matter expert and provide guidance to technical leadership and developers.
- Drive and evangelize architectural principles and guidelines to ensure high-quality, consistent results across teams.
- Partner with engineering managers to ensure adherence to architectural best practices.
- Create, organize, and maintain architectural diagrams and system documentation.
- Provide architectural guidance and mentoring on topics such as microservices, micro-frontends, and high-volume data streaming / event processing.
- Stay up to date with emerging technologies and identify opportunities to improve existing or new systems.
- Develop deep understanding of the CoStar business and align technical work with strategy.
- Design well-instrumented solutions to ensure stability and performance.
- Diagnose and resolve complex performance, scalability, and reliability issues.
- Advocate for security and build secure software products and platforms.
Basic Qualifications
Bachelor’s Degree from an accredited university or college.10+ years of hands-on experience designing highly complex enterprise web applications, including microservices, serverless, data, and web apps.Experience designing and building secure systems and security-minded development practices; experience with financial data is a plus.Expert-level proficiency in at least one language : C#, Java, Python, or JavaScript / TypeScript; exposure to full stack be a plus (e.g., GraphQL).Significant hands-on experience with AWS services (Lambda, DynamoDB, CloudWatch, CloudFormation, SNS / SQS, S3, API Gateway).Experience with Test Driven Development, relational and NoSQL databases, and event-driven architectures / real-time data streaming.Strong ability to communicate through architectural diagrams.Preferred Qualifications
Architect-level certifications from AWS, Azure, or GCP.Experience with agile methodologies, modern source control, CI / CD (Git or Azure DevOps), and Infrastructure as Code (Terraform).Experience with observability tools (CloudWatch, Kibana).Experience building highly secure software, including tokenization and OpenID.Team or project leadership experience is a plus.What’s in it for You
Collaborative and innovative culture, with generous compensation and performance-based incentives. Professional and academic growth support, including internal training and tuition reimbursement, and inter-office exchanges. Benefits include comprehensive healthcare, life and disability insurance, mental health resources, 401(k) with match, employee stock purchase plan, paid time off, tuition reimbursement, on-site or reimbursed fitness facilities, and access to diversity and inclusion resources.
Salary : Base salary range of $211,000 - $297,000, plus a generous benefits plan.
Equal 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 regardless of race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. Reasonable accommodations available for disabilities; contact recruiting@costargroup.com or 1-855-840-1715.
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