CoStar Group

Software Engineer II

CoStar Group
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7 days ago
Richmond, VA, USAMid Level

Base Salary

$108k - $140k/yr

Responsibilities

  • Design, develop, and maintain scalable full-stack applications, APIs, and cloud-native services.
  • Build AI-powered products, intelligent agents, LLM-powered workflows, retrieval systems, and automation capabilities.
  • Collaborate with Product, Data Science, Engineering, and business teams to identify impactful AI and automation opportunities.
  • Deliver secure, high-performance, maintainable software using automated testing, CI/CD, code reviews, and observability.
  • Evaluate emerging technologies, AI frameworks, and industry trends to strengthen the technology ecosystem.

Requirements

  • Bachelor’s degree from an accredited, not-for-profit, in-person university or college.
  • At least 3 years of experience designing, building, deploying, and supporting production-grade software applications.
  • Experience developing full-stack applications with technologies such as React, TypeScript, C#, .NET, SQL Server, or AWS, or comparable technologies.
  • Familiarity with AI-powered applications, including AI agents, LLM-powered workflows, chatbots, copilots, or agent-based systems.
  • Strong software engineering fundamentals across architecture, testing, security, performance, and modern development practices.
  • Experience collaborating across engineering, product, and business teams in an agile environment.
  • Demonstrated commitment to prior employers.
  • Preferred experience with agentic AI, RAG, prompt engineering, tool-calling frameworks, AI evaluation, orchestration platforms, distributed systems, cloud-native applications, Kafka, Redis, Elasticsearch, DynamoDB, S3, or Lambda.

Benefits

  • Medical, vision, dental, prescription drug, life, legal, and supplementary insurance.
  • Virtual and in-person mental health counseling for individuals and families.
  • 401(k) retirement plan with matching contributions.
  • Employee stock purchase plan and paid time off.
  • Tuition reimbursement, internal training, and professional and academic growth programs.
  • Commuter and parking benefits.
  • On-site fitness center or reimbursed fitness center membership where available, plus fitness classes and wellness amenities.
  • Employee Resource Groups and complimentary coffee, tea, hot chocolate, fruit, and healthy snacks.
  • Richmond, VA location with in-office work Monday through Thursday and work from home on Friday.

Tech Stack

Amazon DynamoDBApache KafkaAWSC#ElasticsearchMicrosoft SQL Server.NETReactRedisTypeScript
CoStar Group

About CoStar Group

10,000+ employees

CoStar Group builds subscription databases, analytics, and online marketplaces for commercial and residential real estate professionals, investors, and advertisers. Its portfolio includes CoStar (research and data), LoopNet (commercial listings), and Apartments.com (rental listings), generating revenue from subscriptions, listings, and advertising. The company is publicly traded on NASDAQ (CSGP) and is headquartered in Arlington, Virginia, with inclusion in the S&P 500 index.

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