About our team

The front-end team is responsible for maintaining, optimizing and developing Zepl’s user facing product. Our passion is providing a great experience to our users. We take pride in finding creative solutions to the technical challenges that come with big data analysis in the modern browser.

About your role

As a front-end engineering lead at Zepl, you will be in charge of researching, designing, implementing and testing user-facing features. You will be working with engineers, product managers and designers to translate ideas and feedbacks into technical requirements and communicate them to the broader front-end team. You will also be responsible for making technical judgements and evolving our tech stack.

Required qualifications

  • 1+ years of experience leading a team of front-end engineers, including mentoring junior engineers.
  • 3+ years experience developing and maintaining a stateful web application using frameworks such as React, Redux, Angular or similar.
  • Solid knowledge in modern JavaScript application development and design: asynchronous, functional and modular programming, web workers, etc.
  • Proficiency in HTML5, CSS3 and ES6.
  • Ability to collaborate with various teams, write technical requirements given a high-level feature request, manage risk and schedule by splitting tasks into smaller deliverables.
  • Experience in bettering developer productivity by optimizing the performance and usability of tools like webpack, CI/CD pipelines, testing flows, etc.
  • Working knowledge of when and how to effectively make code scaleable.
  • Comfortable using Git and the modern JavaScript toolchain: Npm, Webpack, Babel, and Node tools.
  • Understanding of full-stack web application architecture.
  • Eager to learn and keen on staying up to date with modern web technologies.
  • Proactive in taking ownership of tasks and bringing them to completion.
  • Excellent English communication skills, both verbal and written, are necessary for documentation, presentation, and day-to-day communication.

Preferred qualifications

  • Familiarity with the key technologies that constitute our front-end stack: React, Redux, Redux-Saga, Immutable-js, Lodash (FP), Styled-Components, Reselect.
  • Experience with Javascript test frameworks such as Jest and Cypress.
  • Experience with the latest front-end frameworks.
  • Full-stack or back-end expertise.
  • Prior experience developing data analysis solutions including charts, notebooks and dashboards.
  • Significant contribution to an open source project.

Why Zepl

You have a chance to join a pre-IPO team in a role that is critical to the growth of our international engineering team. You will have a direct impact on the future direction of our company's technology stack and processes, with a lot of room for professional growth. This is an amazing opportunity to experience the Silicon Valley startup life to its fullest.

We’re not just a highly ambitious company positioned in a great space for fast growth, but our team has a proven track record of success. Many of us have worked together at previous startups, and we’ve followed each other to Zepl to do it all again (we’ve stacked the deck with talented people we like!).

Zepl's mission is to revolutionize how data science gets done in the enterprise. Come see if we're a great fit for you.

Competitive compensation and benefits

  • Work in Downtown San Jose: awesome public transportation, great lunch and happy hour spots.
  • Save for your future with our 401(k) plan.
  • Free gym and yoga classes in our building and discounted rates at all PowerCore Yoga locations.
  • Medical, vision and dental coverage for you and your family.
  • Pre-IPO Stock Options.


This position is located at Zepl's headquarters in downtown San Jose, CA.

About Zepl

Zepl was founded by the creators of Apache Zeppelin in response to a growing demand for enterprise support from its open source users. Since then, Zepl has expanded support to Jupyter notebooks, and has built a robust platform for numerous compute systems and data sources. As data science and machine learning become pervasive, more and more companies are realizing the importance of enterprise-grade capabilities to manage and scale their data-driven programs. Zepl's data-science platform drives innovation faster with access-controlled collaboration paired with strong security and governance.

Zepl is headquartered in San Jose, California and Seoul, South Korea, with a talented team located around the world. Zepl is spearheaded by a strong team of industry veterans and backed by Big Basin Capital, SoftBank Ventures and Vertex Ventures.

Zepl is an equal opportunity employer. We believe that everyone should receive equal consideration and treatment. Recruitment, hiring, placements, transfers, and promotions will happen based on qualifications for the positions being filled regardless of sex, gender identity, race, religious creed, color, national origin ancestry, age, physical disability, pregnancy, mental disability, or medical condition.