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Full-Stack JavaScript Engineer (Back-End Focus)

CoreTech On-site Full-time 6 months ago
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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.


We are looking for a Full-Stack JavaScript Engineer 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. You will be responsible for back-end applications combining multiple sports data sources and front-end applications, allowing data manipulation and customization before they make it to the end user.  


A bit about your future role?


  • We are seeking a highly motivated and result-oriented individual to join our team. 
  • 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 


What are we looking for?


  • 3+ years of experience in Node.js and TypeScript 
  • Working with NoSQL databases such as MongoDB 
  • Working with relational databases like PostgreSQL/MySQL/MSSQL 
  • Experience working with high-load systems 
  • Familiarity with the Nest.js framework 
  • Good verbal and written English communication skills (we are a multi-national team) 
  • Independent, fast learner, motivated by a fast-paced, high-growth environment 


What will help you succeed?


  • Possess a computer science degree from a top-tier institute. 
  • Have practical experience with key/value storages like Redis or Aerospike 
  • Willingness to work from the office, especially during the onboarding phase, as we prioritize in-person collaboration. 
  • Bring valuable experience within the online betting industry. 


What do we offer?


  • An open-minded environment that values you
  • An international multicultural team
  • Career development
  • An amazing office environment (table tennis, PlayStation, all the fun stuff)
  • Food vouchers (180 BGN)
  • Additional health insurance
  • Multisport card
  • 21 days paid leave
  • Flexible working hours
  • Manicure, massage, breakfast, and snacks in the office
  • Wedding and new baby bonus
  • Team building activities
  • Knowledge sharing sessions


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 explicitly consent, in accordance with Regulation (EU) 2016/679 (General Data Protection Regulation), to the processing of the personal data contained in your CV, resume, and/or motivational letter strictly for the purposes of the recruitment and selection process conducted by the Company. By applying to this job offer, you also freely and expressly consent to the Company storing your personal data and considering your application for future employment opportunities, in accordance with the Company’s data retention policy and applicable legal requirements. You may withdraw your consent to the processing and/or storage of your personal data at any time, without affecting the lawfulness of processing based on consent before its withdrawal, by contacting sending an email request to the following address: dpo@first.bet


Why we need to process your personal data for another term:

  • to be able to contact you when we have a suitable position that matches your profile.
  • to be able to send you job offers which might be interesting for you.
  • to contact you directly, without needing you to go again through the whole selection procedure.

What will we continue to store for you?

  • Your name, email, telephone number, social media profile link/s, picture from your CV.
  • Your professional experience.
  • Your skills, language proficiency, special info from your CV, sent by you.

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