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Senior Javascript Engineer
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Offer summary

(Summary generated by AI based on the full job description)

The project focuses on developing and maintaining JavaScript frontend applications for the igaming platform LeoVegas.com, targeting markets like Canada and Germany. Required expertise includes JavaScript, TypeScript, React, Next.js along with practical experience in GraphQL, Node.js, microservices. Responsibilities involve creating and enhancing frontend features, improving user experience, and supporting brand expansion. Benefits include a medical package, training budget, and 4 weeks of Workation.

you can start ASAP

Senior Javascript Engineer

Company: LeoVegas Group

from: 27 August 2026
to: 26 September 2026
20 870 - 26 090 złnet (+ VAT)/ mth.B2B contract (full-time)
17 000 - 21 650 złgross/ mth.contract of employment
Salary details
basic salary
Offer parameters
level:senior
working mode:hybrid
Warszawa, Śródmieście
Warszawa, ŚródmieścieKrólewska 16View on map

Requirements

Expected technologies

JavaScript
TypeScript
React.js
Next.js
GraophQL
Node.js

Optional technologies

Datadog
OpenAPI
BigQuery
Claude
GitHub Copilot

Operating system

macOS

Our requirements

  • Strong, proven experience with JavaScript, TypeScript, React, and Next.js
  • Solid working knowledge of GraphQl
  • Practical experience with Node.js and microservices

Optional

  • Experience with tracking and monitoring tools (e.g., Datadog)
  • Familiarity with OpenAPI and BigQuery
  • Experience leveraging AI tools like Claude or GitHub Copilot, alongside a strong curiosity for using AI to elevate engineering practices
  • Curiosity and enthusiasm for adopting AI to enhance engineering practices and software delivery

Your responsibilities

  • Develop and maintain high-quality JavaScript applications
  • Ensure a smooth and engaging user experience
  • You will be responsible for driving the development of most of the frontend features of Leovegas.com
  • Improve and maintain the applications with a product focus
  • Contribute to launching new brands and brand expansions into new territories

About the project

We are looking for a passionate and experienced self-driven Senior JavaScript Engineer to join in on our mission to deliver the greatest igaming experience to our customers. As a part of our multinational frontend team, you would be an important cog in the machinery, creating new features for and maintaining the full product of LeoVegas.com.
In close collaboration with product managers, designers and our backend peers, we get to work with a broad variety of initiatives, you will be a key factor delivering features and maintaining our brand. With focus on our so-called RoW (Rest of the world) cluster, you will directly act on markets such as Canada, Germany, Malta and some others, with the possibility to bring your own experience close to the current team, and stakeholders.

This is how we organize our work

This is how we work

in houseyou have influence on the technological solutions appliedyou have influence on the productyou focus on product developmentagile

Team members

mobile developer

This is how we work on a project

  • Clean Code
  • code review
  • DDD
  • pair programming
  • architect / technical leader support
  • Continuous Deployment
  • Continuous Integration
  • DevOps
  • team-level deployment
  • test automation
  • manual tests

JOIN US!

In our pride, we empower our teammates to find their roar and run with their wildest ideas. We don’t wait for things to happen; we pounce and make it happen!
Would you be a good fit for the Leo Pride - give us a roar!
As our company's working language is English, we’d like to see your CV in English, please.
Company

What we offer

  • Hybrid work policy
  • 4 weeks of Workation (T&C apply)
  • Benefits package - 800 PLN net (B2B)/gross (UOP) monthly with access to the cafeteria platform (private medical care, insurances, sports card)
  • Training budget
  • ICAS assistance program that can provide help and guidance during challenging moments.
  • Our office provides complimentary snacks and drinks; on Mondays, we serve complimentary breakfast.
  • Team and office social events throughout the year
  • Free parking for bicycles and motorcycles
  • Free gym in the building
  • Equipment: MacBook Pro + smartphone (iPhone 16/17 or Samsung Galaxy S25)

Development opportunities we offer

  • development budget
  • external training
  • space for experimenting
  • support of IT events
  • technical knowledge exchange within the company

Benefits

  • sharing the costs of sports activities
  • private medical care
  • sharing the costs of professional training & courses
  • life insurance
  • flexible working time
  • fruits
  • integration events
  • corporate gym
  • no dress code
  • coffee / tea
  • drinks
  • leisure zone
  • employee referral program
  • training budget
  • free of charge psychological, financial and legal support

LeoVegas Group

At the core of LeoVegas Group is Team Leo. Our culture is our foundation and is what enables us to innovate, build, and lead as we trailblaze our way through the igaming industry. We’re a team of almost 2000 innovators, initiators, and groundbreakers working in a fast-paced and agile environment across 19 offices worldwide.
More about us:
  • Careers site: www.leovegasgroup.com/careers
  • LinkedIn: https://www.linkedin.com/company/leovegasgroup
  • Instagram: www.instagram.com/lifeatleo/

    • This is how we work

    Senior Javascript Engineer
    17k–21.6k zł / mth. (CoE), 20.9k–26.1k zł / mth. (B2B)
    I apply to:
    LeoVegas Group
    Warszawa, Śródmieście
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