Senior Machine Learning Engineer

About CoStar Group

CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index and the NASDAQ 100, CoStar Group is 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.

is already one of the fastest growing real estate portals in the industry. We are driven to be #1. Just ask Brad Bellflower, Chief Change Officer at  After its acquisition in 2014,  quickly turned into the most popular place to find a place. Proven success at the highest level – and we’re doing it again with the new   is a CoStar Group company with 20+ years' experience in leading and growing digital marketplaces.

We pride ourselves on continually improving, innovating, and setting the standard for property search and marketing experiences. With  we’re building a brand on the cusp of defining the industry. We’re looking for big thinkers, brave leaders, and creative advertising wizards ready to influence a new age of home buying within a tried‑and‑true, award‑winning company.

This position is located in Arlington, VA and will have a 4‑day onsite schedule Monday‑Thursday, with Fridays work from home.

• Collaborate on the continued improvement of CoStar’s cloud‑based machine learning environment
• Design, build, test and deploy scalable, reusable and maintainable models that handle large amounts of data
• Collaborate with other engineers, product owners, and leadership to create ML solutions that solve practical problems and improve our customer’s experience
• Gain an understanding of the CoStar business and how ML can improve things

• Bachelor's degree required from an accredited, not‑for‑profit, in‑person college/university
• A track record of commitment to prior employers
• 5+ years of professional development experience as Machine Learning Engineer, Data Scientist or related role
• 3+ years of programming experience with Python
• Experience with recommendation systems and (preferably) computer vision
• Strong foundations in ML concepts including supervised/unsupervised learning, model evaluation, feature engineering, and familiarity with deep learning frameworks (PyTorch or Tensor Flow)

• Experience with ML cloud tools such as Databricks, Amazon Personalize, Sage Maker
• Experience with SQL‑based relational databases (e.g. AWS RDS) or document‑based databases (e.g. Dynamo
  
  DB)
• Experience solving streaming and batch data processing problems at scale
• Experience building, deploying and optimizing ML models

When you join CoStar Group, you’ll experience a collaborative and innovative culture working alongside the best and brightest to empower our people and customers to succeed.

We offer you generous compensation and performance‑based incentives. CoStar Group also invests in your professional and academic growth with internal training and tuition reimbursement.

• Comprehensive healthcare coverage:
  Medical / Vision / Dental / Prescription Drug
• Life, legal, and supplementary insurance
• Commuter and parking benefits
• 401(K) retirement plan with matching contributions
• Employee stock purchase plan
• Paid time off
• Tuition reimbursement
• Complimentary gourmet coffee, tea, hot chocolate, prepared foods, fresh fruit, and other healthy snacks

We welcome all qualified candidates who are currently eligible to work full‑time in the United States to apply. However, please note that CoStar Group is not able to provide visa sponsorship for this position.

CoStar Group is an Equal Employment Opportunity Employer; we maintain a drug‑free workplace and perform pre‑employment substance abuse testing.