Senior Frontend Engineer, React

Posted 5 Days Ago
Boston, MA
3-5 Years Experience
Sports
The Role
As a Senior Frontend Engineer at JockMKT, you will develop user-facing features for mobile and web platforms, build reusable components, optimize real-time data streaming, and monitor application performance. Your work will be pivotal in enhancing user experience in a fast-growing fantasy sports marketplace.
Summary Generated by Built In

At JockMKT (pronounced “Jock Market”), we are building the second-screen experience for live sports with a social, interactive daily fantasy sports (DFS) marketplace where users buy and sell shares of players in real-time with real money. With all shares based on guaranteed payouts, JockMKT has rapidly grown transaction volume and processes millions of dollars of user trades each month.


Since launching in 2020, JockMKT has expanded gameplay from support for the PGA and NFL to the NBA, MLB, NHL, and NASCAR, and released innovative new products for our customers across our mobile apps, web platform, and open REST and websocket-based API. Headquartered in Boston, we embrace workplace flexibility with a hybrid work model and hire remotely across US time zones.


As a small team, we’re constantly pushing ourselves to solve new problems. We primarily develop with Typescript with our type system at the heart of our code base, utilizing Go and Python in specific trading contexts. We are self-starters who are always interested in learning ‘why’ as we encounter new challenges. 

What You'll Do

  • Work with our product and engineering team to develop new user-facing features across our mobile apps and web platform
  • Build reusable components and business logic that drives core user experience
  • Optimize real-time data streaming and state management, proactively diagnosing potential issues and implementing performance improvements
  • Monitor application performance through monitoring and alerting 

Who You Are

  • 4 years of professional software development experience working with Javascript/Typescript and React/React Native or similar frontend development framework (Vue, Native iOS with Objective-C/Swift, Native Android with Java/Kotlin)
  • Experience working with complex front-end requirements, data flow, and state management
  • Professional experience owning a software development process that included shipping a complicated piece of software to real users.
  • Detail oriented, highly organized, and a strong desire to learn and help teammates. 

Our Tech

  • Proprietary exchange/match engine and order system
  • Node, Postgres, and Redis backend with some Go & Python microservices
  • REST and Websocket APIs with a full type system
  • Public trading API
  • React/Next.js and React Native front ends with hooks
  • Redux, Redux Toolkit, and RTKQuery for state storage and data fetching
  • Deployed with AWS ECS & Vercel
  • Github, Slack, Notion, Datadog

What We Offer You

  • Interesting work at the intersection of finance and sports
  • Competitive salary and stock options
  • Health, dental and vision insurance
  • Paid parental leave
  • Flexible Paid Time Off (Suggested 4 weeks)
  • 401k
  • Team events and internal contests with our product
  • Home office stipend
  • Commuter Benefits

We value diversity at Jock MKT and believe the unique contributions of each of us drive our success. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.


Note: We are unable to sponsor work visas at this time. 

Top Skills

Go
JavaScript
Python
Typescript
The Company
HQ: Boston, MA
16 Employees
On-site Workplace

What We Do

Jock MKT is a new live trading game for daily fantasy sports. No more feeling like there's nothing to do but check scoring updates. Now you can trade your favorite players in-game, with friends, for real-money. Prices move in real-time based on user trade offers.

We're venture-backed, based in Boston, and expanding our team. Visit our site for more info, or connect with us at [email protected].

Stay in the game with Jock MKT.

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