Senior Software Engineer, Web Experimentation

  • San Francisco, CA, USA
  • Full-time
  • Department: Engineering

Company Description

Optimizely is the world's leader in customer experience optimization, allowing businesses to dramatically drive up the value of their digital products, commerce and campaigns through its best in class experimentation software platform. By replacing digital guesswork with evidence-based results, Optimizely enables product and marketing professionals to accelerate innovation, lower the risk of new features, and drive up the return on investment from digital by up to 10X. Over 26 of the Fortune 100 companies choose Optimizely to power their global digital experiences. Optimizely’s impressive customer list includes eBay, FOX, IBM, The New York Times and many more global enterprises.

Job Description

Are you interested in an opportunity developing systems that deliver seamless analytics, personalization, and A/B experimentation to some of the world's most trafficked sites? Read on!

Experimentation is the foundation of all human knowledge. At Optimizely we are the Experimentation Platform that enables some of largest companies in the world to to turn data into action.

As we continue to enhance our enterprise class experimentation platform, we're looking for a Senior Engineer with experience working on bare-metal JavaScript, with experience using best-of-breed tools for packaging, testing, and delivering code to high-traffic web environments. If the idea of designing unique solutions to cut time off of load and paint timings interests you, or developing features to take advantage of modern technologies like HTTP/2, Serverless, or CDN Edge Workers excites you, then we want to talk to you!

What You’ll Do

  • Drive new features and enhancements from initial design to fully coded, tested, finished product.
  • Collaborate closely with other software engineers, product managers, and customers.
  • Help other engineers on the team via mentorship, pair programming, and code reviews
  • Help define the product vision, by prototyping new approaches for our award-winning experimentation platform.


  • BS degree in Computer Science or equivalent experience
  • 5+ years experience of professional coding experience with a focus on JavaScript-based development.
  • Expert knowledge of modern web development techniques including performance analysis.
  • Familiarity with a modern web UI framework or two.
  • You've experimented with webpack or other build tools, and know how to squeeze more juice out of them than what comes pre-configured.
  • Ability to contribute anywhere in the stack and wear multiple hats

Additional Information


  • Commuter and transportation benefits
  • Catered in-office lunch and dinner on weekdays
  • Full medical insurance with very low co-pay and deductible. HMO, PPO, and HSA options available
  • Full dental coverage including orthodontics
  • Full vision coverage including contacts
  • Dependents 100% covered for medical, dental, and vision
  • Wellness Grant
  • Unlimited vacation policy and seventeen weeks of paid parental leave
  • 401k benefit
  • Working with a great team and having a huge impact!


At Optimizely, we embody inclusion and embrace diversity.  Optimizely is an equal opportunity employer and makes employment decisions on the basis of merit.  Optimizely prohibits discrimination based on race, color, religion, sex, sexual identity, gender identity, marital status, veteran status, nationality, citizenship, age, disability, medical condition, pregnancy, or any other unlawful consideration. All your information will be kept confidential according to EEO guidelines.

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