Senior Software Engineer

Overview

Design and build scalable full‑stack web apps for internal CRM platforms.

Key Responsibilities

• database design
• api development
• performance tuning
• tech evaluation
• team collaboration
• code reviews

Tasks

-Design, document and implement efficient and scalable database structures -Build large-scale, distributed, API-driven systems for critical internal applications -Identify and resolve issues related to database performance and integrity -Continually evaluate emerging technologies to identify opportunities, trends, and best practices that can be leveraged to strengthen CoStar’s technology platform and development practices. -Collaborate closely with other Software Engineers across the organization. -Drive and lead software design, development standards, code reviews and production releases

Requirements

• net core
• docker
• aws
• react
• node.js
• bachelor’s

What You Bring

-Experience working on a SOX compliant team a plus -A track record of commitment to previous employers -Bachelor’s Degree required from an accredited, not for profit university or college -Experience with Document Data Systems (Dynamo, OpenSearch) a plus. -5+ years of production development experience with .NET Core with the ability to integrate front-end components into a scalable, secure, and maintainable backend architecture -Experience with Docker and container orchestration a plus. -Willingness to take an active role in mentoring other developers. -Experience in architecting, designing and building event-driven applications in an agile environment -Experience with AWS S3, Lambda, SQS, Kafka, Redis a plus. -Proficiency in unit and performance testing -Production development experience using modern front-end frameworks (React, Vue, Angular) -Comfortable working across the stack with Node.js on the server-side -Excellent software development and engineering skills on large scale, mission-critical applications -3+ years of database design, T-SQL programming, and performance tuning experience

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Benefits

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

About Costar Group

-Offers comprehensive data on properties, tenants, leases, and market conditions globally. -Known for its pioneering technology and research, delivers powerful insights to commercial real estate professionals. -Its旗舰平台, CoStar, provides unmatched property data, news, and analytics. -Platforms used by real estate professionals, from brokers to investors to property managers. -Expanded through strategic acquisitions, including the purchase of LoopNet and Apartments.com. -Data-driven insights help clients make informed investment and leasing decisions, shaping the global real estate market.

Sector Specialisms

Visa Sponsorship

-no visa sponsorship is offered for this position.

Security Clearance

-pre-employment substance abuse testing (drug‑free workplace).