Software Engineer, Query Infrastructure

Kensho, Cambridge, MA


At Kensho, we hire talented people and give them the autonomy, support, and resources needed to build cutting edge technology and products for our parent company, S&P Global. As a result, we produce technology that solves the challenges of one of the world’s largest, most successful financial institutions. 

As a Software Engineer, Query Infrastructure on the Knowledge team, you will be responsible for building a highly advanced cross-database querying platform capable of finding and providing data from a wide variety of sources, from SQL databases to S3 buckets. This platform underpins Kensho’s advanced machine learning and analytics applications, so you will apply cutting-edge compiler, database, and distributed systems ideas to empower your teammates and collaborate on solving difficult real-world data problems. Also, because we firmly believe in giving back to the community, you will contribute to the many open-source projects that our projects rely on.

Are you looking to make impactful, scalable contributions that could transform the way people think about data? If so, we would love to help you excel here at Kensho. We take pride in our team-based, tightly-knit Kenshin community that provides our employees with a collaborative, supportive environment that brings transparency to the biggest challenges in data.

What We're Working On:

  • Open-source, optimizing GraphQL-to-database-queries compiler (blog post)
  • Topological query scheduler for the OrientDB open-source graph database (pull request)
  • Cross-database query cost estimation, query planning, and automatic query pagination

What You'll Do

  • Contribute to our open-source optimizing GraphQL compiler
  • Build systems that optimize query execution across a variety of SQL, graph, time-series, and blob-storage databases
  • Design flexible caching, load-balancing, and query execution infrastructure with an eye toward scalability and performance

What We Look For:

  • Proficient and comfortable in at least one programming language
  • Knowledgeable in algorithms, data structures, and systems design
  • Experience working with and building distributed systems, databases, or compilers
  • Strong attention to detail, with an emphasis on documentation and testing as you’ll be building the query layer that powers our future products
  • Desire to build a strong, collaborative engineering culture as a code reviewer, mentor, and teammate

How to Really Get Our Attention:

  • Major contributor on the backend or infrastructure teams of a top company
  • Open-source project contributions showing innovation and initiative
  • 2+ years of experience with large-scale computer systems or graph databases
  • Participation and awards at math or programming olympiads (e.g. IMO or IOI)
  • Relevant research or publications

Technologies We Like:

  • Python
  • Kubernetes
  • PostgreSQL
  • Redis
  • OrientDB
  • gRPC
  • Prometheus

Benefits & Perks:

  • At Kensho, we pride ourselves on providing top-of-market benefits, including:
  • Medical, Dental, and Vision insurance - 100% company paid premiums
  • Unlimited Paid Time Off
  • 18 weeks of 100% paid Parental Leave (paternity and maternity)
  • 401(k) plan with 6% employer matching
  • Generous company matching on donations to non-profit charities
  • Up to $20,000 tuition assistance
  • Plentiful snacks, drinks, and regularly catered lunches
  • Dog-friendly office (CAM office)
  • In-office gyms and showers (CAM, DC) or Equinox membership (LA, NYC)
  • Stipend towards commuter or gym reimbursement
  • Bike sharing program memberships
  • Compassion leave and elder care leave
  • Mentoring and additional learning opportunities
  • Opportunity to expand professional network and participate in conferences and events
About Kensho

Kensho uses machine learning, artificial intelligence, natural language processing and data visualization techniques to solve some of the hardest analytical problems and create breakthrough financial intelligence solutions for our parent company, S&P Global. 

Kensho was founded in 2013 by Harvard & MIT alums and was acquired by S&P Global in 2018 for $550M, the largest FinTech AI acquisition ever. Kensho continues to operate as a startup in order to maintain our distinct, independent brand and to promote our breakthrough, innovative culture. Our team of Kenshins enjoy a dynamic and collaborative work environment that runs autonomously from S&P, while leveraging the unparalleled breadth and depth of data and resources available as part of S&P Global. 

As Kenshins, we pride ourselves on maintaining an innovative culture that depends on diversity and inclusion. We are an equal opportunity employer that welcomes future Kenshins with all experiences and perspectives. 

Kensho is headquartered in Cambridge, MA, with offices in New York City, Washington D.C. and Los Angeles. 

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, or national origin.

About Kensho

Kensho is a Data Analytics and Machine Intelligence Company Kensho deploys scalable machine learning and analytics systems across the most critical government and commercial institutions in the world to solve some of the hardest analytical problems of our time.

Want to learn more about Kensho? Visit Kensho's website.