Senior Full Stack Developer (PortalX)

Kyiv, Ukraine


Who are we?

We are #TeamSBTech, an award-winning leading provider of sports betting solutions, and you know us. We have been in this market for 10 years (4 for Kyiv) 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.

Who are we a good fit for?

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. 


  • 5+years of working experience with WEB applications based on C# and JavaScript
  • Ambition to write high-quality code covered with unit tests for back-end and front-end
  •  Strong knowledge of C# / .NET / ASP.NET MVC
  •  Good knowledge of JavaScript
  •  Design patterns
  •  Solid debugging and troubleshooting skills
  • Object Oriented concept and design
  • Very good English both verbal and written


  • Team player
  • Proactive person (not just typical words, we really appreciate this)
  • Excellent problem solving and analytical skills
  • Outstanding communication and presentation skills.
  •  Excellent time management, planning, organizational and prioritization skills


  • MobX library for state management
  • ReactJS will be a huge plus
  • TypeScript / ECMAScript 6
  • Enzyme testing utilities for React
  • Experience with microservices
  • Source control: GIT
  •  Experience working with SCRUM / AGILE methodologies
  • Experience with online gaming industry and systems
  •  BS or MS degree in computer science/informatics or equivalent is a plus


  •  Development of our Product Suite – systems that handle thousands of concurrent users and Tens of millions monthly operations
  •  Development of new business initiatives, extension of existing ones
  • Taking active part in improvements and optimizations to the system’s core
  •  Following and working according to SW development standards and methodologies
  •  Resolve technical problems, critical thinking on development approach
  •  Be part of cross-functional team with end-to-end responsibility for end result

Why join our Dream Team?

Here we’re working really hard (yet not burning-out-hard), but also learning and developing fast (like Usain-Bolt-fast). We are looking for smart and focused people who represent the team spirit and are trustworthy allies in achieving great results. The business environment provokes us to be dynamic and innovative and that’s exactly what we are. We offer great career opportunities – you simply must seize them.

The Company offers excellent benefits

  • Being a part of an international team focused on excellence in product development
  • Formal review process
  • Very good remuneration
  • Comprehensive health insurance + gym
  • Team building and fun activities
  • High end modern office facilities
  • Dynamic and friendly work environment
  • Open and transparent communication
  • Long term career growth opportunities
  • Professional growth, extra education opportunities and cross-locations knowledge sharing
  • English classes
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