Senior Full-Stack JavaScript Developer

Reposted 20 Days Ago
Be an Early Applicant
Hiring Remotely in Sofia, Sofia-grad, BGR
Remote or Hybrid
Senior level
Gaming • Software
The Role
The role involves developing backend services, ensuring product quality, and maintaining high availability and scalability while researching innovative solutions.
Summary Generated by Built In

FIRST. Best in Sports is a dynamic and innovative global technology company that provides B2B SaaS solutions for online sports platforms.

We are at the forefront of innovation, empowering gaming partners with revolutionary sportsbook solutions. Our cutting-edge sportsbook software, premium data feeds, and unwavering commitment to partner success are reinventing the gaming industry. We offer a dynamic and inclusive work environment where employees are empowered to make a difference and drive our company's success.

About the role

We are looking for a Senior Full-Stack JavaScript Developer to join our fantastic engineering team. Our server architecture is micro-services based, running on JavaScript/Typescript using Nest.js framework with MongoDB and Aerospike as a data store and Pulsar as a queue-based communication. We are advocates for cutting-edge technology. In your new role, you will work at the heart of our system.

What you’ll be doing

  • Be dedicated to product quality and have excellent analytical and problem-solving skills
  • Continuously design, develop, and deploy backend services
  • Focus on high availability, low latency, and scalability
  • Enthusiastically research new methods for doing things
  • Provide solutions to challenging problems

Who you are

  • 3+ years experience in Node.js and Typescript
  • 3+ years experience in React
  • Working with databases such as MongoDB
  • Experience working with high-load systems
  • Built microservices architecture for large-scale applications
  • Familiarity with the Nest.js framework
  • Good verbal and written English communication skills (we are a multi-national team)

What would be a bonus

  • Experience with Aerospike
  • Experience with Pulsar
  • Experience with Kubernetes
  • Experience with Docker
  • Experience with Helm and Helmfile
  • University degree in a related engineering field

What we offer

  • An open-minded environment that values you
  • An international multicultural team
  • An amazing office environment
  • Food vouchers (95 EUR)
  • Additional health insurance
  • Multisport card
  • Up to 24 days of paid annual leave
  • Flexible working hours
  • Manicure, massage, breakfast, and snacks in the office
  • Wedding and new baby bonus
  • Team building activities


If you are interested in joining our diverse and dynamic team, we are looking forward to your application. Only short-listed candidates will be contacted.
Confidentiality of all applications is assured!

By submitting your application, you acknowledge that the Company will process the personal data contained in your CV, résumé and/or motivational letter for the purposes of managing the recruitment and selection process, in accordance with Regulation (EU) 2016/679 (General Data Protection Regulation), applicable data protection legislation and the Company’s Recruitment Privacy Notice.

As part of the application form, you will also be asked whether you agree to the Company retaining and using your personal data beyond the applicable six-month retention period, for a total period of up to 24 months following the completion of the recruitment process, so that you may be considered and contacted for future employment opportunities.

Providing this consent is entirely optional and will not affect your application for the current position.

You may withdraw your consent to the retention and use of your personal data for future employment opportunities at any time, without affecting the lawfulness of processing carried out before its withdrawal, by sending an email request to [email protected].

Skills Required

  • 3+ years experience in Node.js and Typescript
  • 3+ years experience in React
  • Experience working with databases such as MongoDB
  • Built microservices architecture for large-scale applications
  • Familiarity with the Nest.js framework
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The Company
HQ: Sofia
198 Employees

What We Do

FIRST - Best in Sports: Empowering gaming partners with innovative sportsbook solutions. Reinventing the gaming industry with cutting-edge sportsbook software, data-driven insights, and a relentless focus on partner success. Key highlights: Revolutionary sportsbook software Premium quality data feeds Unwavering commitment to partner needs Partner with FIRST - Best in Sports and experience the future of gaming. #sportsbook #gaming #technology #partnership

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