Senior ReactJS Developer

Sofia, Bulgaria


Who are we?

We are #TeamSBTech, an award-winning leading provider of sports betting solutions, and you know us. We have been on this market for 10 years – growing, building amazing technology and family. 

And as of April 2020, we combined with DraftKings (Nasdaq: DKNG) – a digital sports entertainment and gaming company known for its industry-leading daily fantasy sports and mobile sports betting platforms.

DraftKings Inc. is a digital sports entertainment and gaming company. It’s simple, at DraftKings, we’re committed to responsibly creating the world’s favorite games and betting experiences. Headquartered in Boston, MA, with offices around the globe, we believe we can continue to define what it means to be a technology company in sports entertainment. We love what we do, and think you will too.

What are we looking for?

We are looking for a Senior ReactJS Developer to join one of our biggest departments, working on our SportsBook platform.

You’ll be part of a team developing a complex multi-tier product, involving client and server-side software and will be using the most modern tool-set to deliver high quality products.

This includes developing widgets based on TypeScript/JavaScript, React and MobX with accordance to best practices for TDD and CI.

Essential functions:

  • Create reactive components as part of an atomic design system
  • Implement responsive UIs following guidelines provided by the UX team
  • Measure and optimize the performance of existing features
  • Collaborate with our team including our back-end developers, and UX team
  • Find solutions to new daily challenges
  • Write functional documents and specifications
  • Proactively identify new opportunities to broaden skill set and knowledge in emerging technologies and products


  • 4+ years of professional experience in front-end web development
  • Proven experience in building high performing UIs
  • Experience with TypeScript, ReactJS 16.x, MobX
  • Good knowledge of WebSockets/SSE/REST, HTML/CSS, LESS, NPM, GIT
  • Understanding of the SOLID principles
  • Understanding of code reuse patterns and packaging of software
  • Clean code and refactoring techniques
  • Experience with automated code testing
  • Strong interpersonal skills
  • Fluent in English

Why join our Dream Team?

We love working with talented people but more than that, we seek out compassionate co-workers with a collaborative spirit. Our work moves quickly and we’re great at coming together to find creative solutions to some of tech’s most interesting problems. If that sounds good to you, join us.

The Company offers excellent benefits

  • Being a part of an international team focused on excellence in product development
  • Very good remuneration
  • Comprehensive health insurance + Multisport card
  • Monthly parking coverage OR Public transport card
  • Team building and fun activities
  • High and modern office facilities
  • Dynamic and friendly work environment
  • Open and transparent communication
  • Long term career growth opportunities
  • Professional growth, extra education opportunities and cross-location knowledge sharing
  • English classes
  • Fruits and snacks at the office

Are you up for the challenge?

Send us your CV in English and become part of SBTech team!

Confidentiality of all applications is assured!

SBTech.com uses cookies on this website. In order to deliver a better browsing experience and for marketing- both for you and for others- we remember and store information about how you use it. To accept cookies continue browsing as normal. Or go to SBTech’s Privacy Policy for more information