Principal Software Engineer

Description

• Partner with engineering managers to ensure that they are following established architectural best practices.
• Act as an architectural subject matter expert and source of good advice to technical leadership and developers.
• Advocate for and design solutions that are well-instrumented, so that we are confident we are building stable, high-performance products.
• Provide architectural guidance and mentoring to other technical staff on topics such as microservices, micro-frontends, high-volume data streaming / event processing, etc.
• Work in partnership with Product and Technology leadership to deeply understand a project’s complex functional requirements and drive implementation of appropriate technical solutions.
• Develop a deep understanding of the CoStar business, and how the technical work we are doing aligns with that strategy.
• Drive and evangelize architectural principles and guidelines to ensure high quality, consistent results across teams.
• Collaborate with development teams to determine the right architectural direction based on project needs, level of effort, resourcing, timing, etc.
• Create, organize, and maintain architectural diagrams and other system documentation.
• Stay up to date and evaluate emerging technologies and development practices to identify how they might improve our systems.
• Be an advocate for security and ensure that we are architecting and building secure software products and platforms.

Requirements

• Extensive experience in software engineering with expert-level proficiency in at least one of these programming languages: C#, Java, Python, JavaScript/TypeScript. Exposure to languages and platforms across the full web application stack is a big plus (e.g., Apollo GraphQL).
• Experience designing/implementing event-oriented architectures and real-time data streaming solutions.
• Experience with modern source control and CI/CD technologies including Git or Azure DevOps.
• Experience with agile development methodologies.
• Be a go-to resource in the understanding and diagnosis of complex performance, scalability, and reliability issues.
• Experience building highly secure software, including tokenization, OpenID, etc.
• 10+ years of hands-on experience in designing highly complex enterprise-level web applications, including deep knowledge of microservices, serverless, data, and web applications.
• Bachelor’s degree, preferably in Computer Science/Engineering, from an accredited, not for profit university or college.
• Architect-level certifications from AWS, Azure or GCP
• Experience designing and buildings secure systems and security minded development practices. Experience with financial data is a big plus.
• Experience establishing software development best practices, including standards, code reviews, source control, builds, testing and operations.
• Strong ability to communicate through architectural diagrams.
• Experience in observability logging/tracing with CloudWatch, DataDog, and/or Kibana.
• Experience with Infrastructure as Code in Terraform.
• Understand existing systems and ensure they are well documented, so that you become a go-to source of architectural information across multiple systems.
• Significant, hands-on experience designing and implementing solutions using Amazon Web Services (AWS) services including Lambda, DynamoDB, CloudWatch, CloudFormation, SNS/SQS, S3, API Gateway, ElastiCache, DataBricks etc.
• Team or project leadership experience is a plus.
• Experience modeling and implementing large-scale relational and NoSQL database systems.

Benefits

• 401(K) retirement plan with matching contributions
• Employee stock purchase plan
• Virtual and in person mental health counseling services for individuals and family
• Life, legal, and supplementary insurance
• On-site fitness center and/or reimbursed fitness center membership costs (location dependent), with yoga studio, Pelotons, personal training, group exercise classes
• Commuter and parking benefits
• Access to CoStar Group’s Diversity, Equity, & Inclusion Employee Resource Groups
• Paid time off
• Tuition reimbursement
• Comprehensive healthcare coverage: Medical / Vision / Dental / Prescription Drug
• Complimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks

Training + Development

Interview process

Visa Sponsorship

Security clearance