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Req # 101123

Senior Ruby Platform Engineer

Mountain View, CA US

Employee: Full Time Employee
Travel: None
About Castlight

At Castlight, our mission is to empower people to make the best choices for their health and to help companies make the most of their health benefits. We offer a health benefits platform that engages employees to make better healthcare decisions and can guide them to the right program, care, and provider. The platform also enables benefit leaders to communicate and measure their programs while driving employee engagement with targeted, relevant communications. 

To date, Castlight has partnered with more than 240 large enterprise customers, spanning millions of lives, to improve healthcare outcomes, lower costs, and increase benefits satisfaction.

We're looking for a top caliber engineer with experience in building a data platform at internet scale. Castlight's Jiff platform interacts with multitude of health/fitness devices and apps real time data streams. The ideal candidate will have top-notch skills, and preferably has experience working on early stage consumer service platforms. This is an opportunity to be part of a promising early stage startup in the exciting digital health/fitness space and to drive a new generation health/fitness platform architecture. If you’ve got the right skills and passion, we want you!

What you'll be doing:
  • Architecting, building, testing and refining new products and services throughout the backend platform stack, including cache, workflow, controller, and data
  • Evolving various stack components to scale and address new service requirements
  • Designing and developing REST API and integration points for various platform services
  • Brainstorming and prototyping new concepts and approaches fast
  • Turning prototypes into real things

  • Worked on large scale SOA consumer systems
  • Fluency in Ruby and Ruby on Rails
  • Experience with designing REST based API's for consumer based services
  • At least 5 years of experience designing and building backend software platforms
  • Expert knowledge in optimization and scalability using various technologies
  • Experience with MySQL and MongoDB
  • Able to design and write well-structured, easily maintainable, well-documented code that balances beauty and pragmatism
  • Demonstrable track record building distributed, clustered, high-throughput applications
  • Talent and drive to build a winning product and platform
  • A team player in a flat-structured, highly collaborative agile environment is a must
  • Strong academic background, preferably in Computer Science

We are Castlight and we are…


* Changing healthcare is a team sport

* Teamwork requires respect

* Direct feedback is a gift that improves us

* Diversity makes us stronger

* We take care of ourselves and each other=


* We put our mission first

* We are here to transform healthcare

* We tackle complex problems with curiosity, passion, and ambition

* We bring our best every day

* We learn and grow together


* Done well is better than perfect

* We move fast to accelerate execution and learning

* We are empowered to take action

* We own the outcome

* We win together

EEOC Statement
Castlight Health provides equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, pregnancy, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, Castlight Health will provide reasonable accommodations for qualified individuals with disabilities.
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