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CoStar Group · 5 hours ago

Lender - Principal Software Engineer (React/C#/AWS)

San Diego, CA

Full-time

Hybrid

Lead/Staff

$211K/yr - $297K/yr

10+ years exp

CoStar Group is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. They are seeking an experienced Principal Software Engineer to own the architecture and design of their software systems, including new greenfield systems and guiding the evolution of current solutions.

AnalyticsCommercial Real EstateReal Estate

Responsibilities

Work in partnership with Product and Technology leadership to deeply understand a project’s complex functional requirements and drive implementation of appropriate technical solutions

Collaborate with development teams to determine the right architectural direction based on project needs, level of effort, resourcing, timing, etc

Understand existing systems and ensure they are well documented, so that you become a go-to source of architectural information across multiple systems

Act as an architectural subject matter expert and source of good advice 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 that they are following established architectural best practices

Create, organize, and maintain architectural diagrams and other system documentation

Provide architectural guidance and mentoring to other technical staff on topics such as microservices, micro-frontends, high-volume data streaming / event processing, etc

Stay up to date with emerging technologies, evaluate and development practices and identify how they might improve existing or new systems we are building

Develop a deep understanding of the CoStar business, and how the technical work we are doing aligns with that strategy

Advocate for and design solutions that are well-instrumented, so that we are confident we are building stable, high-performance products

Be a go-to resource in the understanding and diagnosis of complex performance, scalability, and reliability issues

Be an advocate for security and ensure that we are architecting and building secure software products and platforms

Qualification

C#AWSMicroservicesSecure systems designJavaScript/TypeScriptEvent-oriented architecturesRelationalNoSQL databasesTest Driven DevelopmentAgile methodologiesArchitectural diagramsInfrastructure as CodeObservability loggingTeam leadership

Required

Bachelor's Degree required from an accredited, not-for-profit, in-person college/university

A track record of commitment to prior employers

10+ years of hands-on experience in designing highly complex enterprise-level web applications, including deep knowledge of microservices, serverless, data, and web applications

Experience designing and buildings secure systems and security minded development practices. Experience with financial data is a big plus

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., GraphQL)

Significant, hands-on experience designing and implementing solutions using Amazon Web Services (AWS) services including Lambda, DynamoDB, CloudWatch, CloudFormation, SNS/SQS, S3, API Gateway, etc

Experience with Test Driven Development methodologies

Experience modeling and implementing large-scale relational and NoSQL database systems

Experience designing/implementing event-oriented architectures and real-time data streaming solutions

Strong ability to communicate through architectural diagrams

Preferred

Architect-level certifications from AWS, Azure or GCP

Experience with agile development methodologies

Experience with modern source control and CI/CD technologies including Git or Azure DevOps

Experience establishing software development best practices, including standards, code reviews, source control, builds, testing and operations

Experience with Infrastructure as Code in Terraform

Experience in observability logging/tracing with CloudWatch and/or Kibana

Experience building highly secure software, including tokenization, OpenID, etc

Team or project leadership experience is a plus

Benefits

Comprehensive healthcare coverage: Medical / Vision / Dental / Prescription Drug

Life, legal, and supplementary insurance

Virtual and in person mental health counseling services for individuals and family

Commuter and parking benefits

401(K) retirement plan with matching contributions

Employee stock purchase plan

Paid time off

Tuition reimbursement

On-site fitness center and/or reimbursed fitness center membership costs (location dependent), with yoga studio, Pelotons, personal training, group exercise classes

Access to CoStar Group’s Diversity, Equity, & Inclusion Employee Resource Groups

Complimentary gourmet coffee, tea, hot chocolate, fresh fruit, and other healthy snacks