Senior Frontend Developer

4 Weeks ago • 5 Years + • Frontend Development

Job Summary

Job Description

As a Senior Frontend Developer at ComeOn Group, you'll work on UI components for new brand creation, analytics, SEO, and compliance features. This role involves significant collaboration with a cross-functional team, including brainstorming, defining technical structures, and implementing product solutions. Responsibilities include mentoring junior developers, staying current with the JS ecosystem, and contributing to a stimulating work environment. You will take end-to-end ownership of products, from design to release, demonstrating strong expertise in React, Redux, React-router, CSS, Sass, and web performance optimization. Experience with large-scale SPA applications and a deep understanding of web development fundamentals are essential.
Must have:
  • 5+ years JavaScript experience
  • React/SPA application expertise
  • Redux, React-router experience
  • CSS, Sass, styled-components
  • Web development fundamentals
  • Component-based architecture
  • GIT proficiency
  • Web performance optimization
  • Frontend tooling (e.g., Webpack)
  • W3 standards, Web APIs
  • UI/UX understanding
Good to have:
  • Full-stack experience (Java)
  • iGaming domain knowledge
Perks:
  • Competitive remuneration package & bonus
  • Team and company events
  • Workstation setup bonus
  • Hybrid work arrangement (up to 40 days fully remote)
  • Karta Multisport
  • Private health insurance

Job Details

Description

ComeOn Group in short

Founded in 2008, ComeOn Group is a leading global player in the rapidly growing iGaming market. Having launched its first online brand in 2010, ComeOn Group offers 15 brands across multiple markets on its proprietary platform providing a secure, innovative and entertainment-led player experience across casino and sports betting. ComeOn Group is an international employer within the iGaming industry and has over 550 talented employees across 7 main locations. 

Location: Katowice + Hybrid (fully remote is not possible)

As a Frontend developer you will work on UI components that deal with new brand creation, analytics, SEO and some compliance related features. It also involves high level of collaboration with the rest of the cross functional team. for example brainstorming, define technical structure and implement the product and its technical solutions.

Requirements

  • Be a role model towards other developers in the team
  • Keeping yourself up-to-date with latest and greatest in the JS ecosystem
  • Encouraging to new ideas
  • Being a good communicator also requires you to work on your listening skills and ability to understand others.
  • Well organized - be more autonomous in your work, you'll be asked to help others, as well as to review or attend meetings; you also have to monitor multiple projects at the same time.
  • Supporting the team to boost their skills to create a stimulating work environment.
  • Be an engine to improve the product and boost team productivity

Requirements

About You

  • In depth knowledge of JavaScript (preferably 5+ years)
  • Previous experience with large scale React/SPA applications and good experience in React and its ecosystem such as Redux, React-router.
  • Good experience with CSS, Sass and libraries like styled-components.
  • Strong fundamentals of web development and good debugging skills.
  • Good experience working with component based architecture.
  • Know your way around GIT .
  • Experience with web performance and tools like lighthouse.
  • Understanding of frontend tooling - for ex - web pack
  • Good knowledge of W3 standard, Web APIs
  • Take end-to-end ownership of the products, from design to release.
  • Good understanding of UI/UX - we love super-cool animations
  • Having full stack experience is a plus, especially full stack within Java.It is a plus but not mandatory to have domain knowledge (igaming)

Benefits

So what can you expect from ComeOn as a place of work? 

  • A competitive remuneration package inc. a company bonus scheme! 💰
  • Fantastic quarterly team events and weekly company events 😎
  • A one-time bonus to help you set up a comfortable workstation at home (we’re truly Hybrid!)
  • On top of our Hybrid work arrangement, up to 40 days a year to work fully remote from anywhere 🌎
  • Karta Multisport
  • Private health insurance

At ComeOn, we've embraced a Hybrid Work model, giving our employees the flexibility to work some days at home. Our offices are thoughtfully designed to support this model, featuring practical workspaces for focused efforts and collaborative zones for dynamic creative exchanges. We believe in the power of collaboration to drive innovation and success. While our offices are known for their vibrant atmosphere, rest assured that our primary focus is on achieving results together. We prioritize efficiency and maintain a balance between hard work and camaraderie. When you visit our offices, expect a warm welcome and professional support. Choose ComeOn for your next career move, and experience a workplace that values productivity, teamwork, and the spirit of collaboration.

At ComeOn Group we value diversity and we take concrete action to ensure fairness in our recruitment process. We are committed to assess candidates on their merit without discriminating against any applicant for whatever reason that is protected by law. We truly value you, as you are. 

Want to know more about us just visit our website www.comeon-group.com or any of our social media channels to take a deep dive into our culture!

LinkedIn

Instagram

Facebook

Similar Jobs

King - Senior Software Engineer

King

Stockholm, Stockholm County, Sweden (On-Site)
• 1 Week ago
Google - Research Intern, PhD, Summer 2025

Google

(On-Site)
• 3 Months ago
ByteDance - Senior Backend Software Engineer - Global E-Commerce Supply Chain Inventory

ByteDance

San Jose, California, United States (On-Site)
• 3 Months ago
ByteDance - Senior/Tech Lead Software Development Engineer, Network Monitoring & Alerts - Seattle

ByteDance

Seattle, Washington, United States (On-Site)
• 3 Months ago
ByteDance - Tech Lead Manager - Global Payment - Singapore

ByteDance

Singapore (On-Site)
• 1 Month ago
Ness Digital - React Senior Engineer

Ness Digital

Timișoara, Timiș, Romania (Remote)
• 1 Month ago
JOBSTARS HR SOLUTIONS PRIVATE LIMITED - React Native

JOBSTARS HR SOLUTIONS PRIVATE LIMITED

Thrissur, Kerala, India (Hybrid)
• 5 Months ago
Crunchyroll - Principal Software Engineer, Video, Frontend

Crunchyroll

(Remote)
• 3 Months ago
Ludeo - Frontend Architect

Ludeo

Tel Aviv-Yafo, Tel Aviv District, Israel (On-Site)
• 3 Days ago
Rush Street Interactive - Senior Full-Stack Engineer (Frontend-Focused)

Rush Street Interactive

Toronto, Ontario, Canada (On-Site)
• 3 Weeks ago

Get notifed when new similar jobs are uploaded

Similar Skill Jobs

Nagarro - Staff Engineer, Java

Nagarro

Riyadh, Riyadh Province, Saudi Arabia (On-Site)
• 3 Months ago
Nagarro - Senior Staff Engineer, QA Automation

Nagarro

Portugal (Remote)
• 4 Months ago
Next Level Business Services - JavaScript Developer with Full stack Experience

Next Level Business Services

Dallas, Texas, United States (On-Site)
• 4 Months ago
Luxoft - Senior React JS Developer

Luxoft

Hyderabad, Telangana, India (On-Site)
• 3 Months ago
Acceldata - Resident Solutions Architect

Acceldata

United States (Remote)
• 4 Months ago
Nagarro - Associate Principal Engineer, QA-Automation- Cypress

Nagarro

Bengaluru, Karnataka, India (On-Site)
• 4 Months ago
Trendyol - Backend Developer

Trendyol

Ankara, Ankara, Türkiye (Hybrid)
• 4 Months ago
Paypal - Lead Software Engineer (JavaJ2EE)

Paypal

Bengaluru, Karnataka, India (Hybrid)
• 3 Months ago
NVIDIA - Android Software Engineer (RDSS Intern)

NVIDIA

Taipei City, Taiwan (On-Site)
• 1 Month ago
ION - Technical Support Analyst, Chicago - 5849/9555

ION

Chicago, Illinois, United States (On-Site)
• 4 Months ago

Get notifed when new similar jobs are uploaded

Jobs in Silesian Voivodeship, Poland

TransPerfect - Localization QA Lead - Warsaw (freelance)

TransPerfect

Warsaw, Masovian Voivodeship, Poland (On-Site)
• 6 Months ago
Futurum Technology  - Accounting Assistant

Futurum Technology

Kraków, Lesser Poland Voivodeship, Poland (On-Site)
• 1 Month ago
Reality Games - Technical Artist for Mobile Game

Reality Games

Kraków, Lesser Poland Voivodeship, Poland (On-Site)
• 1 Month ago
Larian Studios - Writer

Larian Studios

Warsaw, Masovian Voivodeship, Poland (On-Site)
• 4 Months ago
Growe - International Contract Lawyer

Growe

Warsaw, Masovian Voivodeship, Poland (On-Site)
• 1 Month ago
seeking alpha - Senior Data Analyst

seeking alpha

Poland (On-Site)
• 4 Months ago
Playtika - Games R&D-Flutter Client Developer

Playtika

Poland (On-Site)
• 2 Months ago
Techland - UE5 Senior Game Programmer

Techland

Wrocław, Lower Silesian Voivodeship, Poland (On-Site)
• 2 Months ago
Social Discovery Group - Senior Product Analyst (AI Product)

Social Discovery Group

Poland (Remote)
• 3 Weeks ago
PwC - Konsultant / Konsultantka | Audyt

PwC

Warsaw, Masovian Voivodeship, Poland (Hybrid)
• 4 Months ago

Get notifed when new similar jobs are uploaded

Frontend Development Jobs

Vista - Lead Software Engineer

Vista

Bengaluru, Karnataka, India (On-Site)
• 5 Months ago
Turtle Rock Studios - Senior UI Engineer

Turtle Rock Studios

California, United States (Hybrid)
• 1 Month ago
Animoca Brands - Frontend Developer

Animoca Brands

Malaysia (Remote)
• 4 Months ago
Every matrix - Middle Frontend Engineer

Every matrix

Bucharest, Bucharest, Romania (Hybrid)
• 3 Months ago
Canva - Senior Backend Engineer (Java)

Canva

Sydney, New South Wales, Australia (Remote)
• 1 Month ago
Social Discovery Group - Senior React Native Developer

Social Discovery Group

Bangkok, Bangkok, Thailand (Remote)
• 2 Weeks ago
Flow - Senior/Staff Web Engineer

Flow

Miami, Florida, United States (Hybrid)
• 4 Months ago
Xsolla - Middle/Senior Frontend Developer

Xsolla

Kuala Lumpur, Federal Territory Of Kuala Lumpur, Malaysia (On-Site)
• 1 Month ago
Larian Studios - Internship - Tools Programmer

Larian Studios

Kuala Lumpur, Federal Territory Of Kuala Lumpur, Malaysia (On-Site)
• 5 Months ago
SmileGate - Senior UI Designer - Next Crossfire

SmileGate

Seongnam-si, Gyeonggi-do, South Korea (On-Site)
• 1 Month ago

Get notifed when new similar jobs are uploaded

About The Company

Founded in 2008, ComeOn Group is a leading global player in the rapidly growing iGaming market. Having launched its first online brand in 2010, ComeOn Group is running a wide range of exciting brands across multiple markets. Operating more than 20 brands on its proprietary platform providing a secure, innovative and entertainment-led player experience across casino and sports betting. ComeOn Group is an international employer within the iGaming industry and has over 500 talented employees across 7 main locations.


So - what can you expect from ComeOn as a place of work?


At ComeOn, we have adapted a Hybrid Work model which means that we offer our employees an option to pick their workstation for the day. Want to work from the office a few days a week and some days from home? That’s totally fine with us! ComeOn is known for their inviting and vibrant offices that offer creative areas for collaboration and desk set-ups designed for a Hybrid Work model. When you visit one of our offices you will always be welcomed by a friendly face that will take good care of you. It’s our curiosity that drives our innovative business forward and we work hard in a #runtogether spirit and we always make sure to top it up by #havingfun!


The ComeOn Moment


That moment when right before the roulette ball stops, or during when the penalty shoots out in the world cup final, when time slows down, when every heartbeat can be felt, when you think, whisper or scream ComeOn, ComeOn, ComeOn!


You don’t have to be a gambler to work at ComeOn Group, but you have to understand the power of having something at stake, with the potential to win or lose. We have all experienced this, if not with money on the table, maybe it was our hearts!

Silesian Voivodeship, Poland (Hybrid)

Stockholm, Stockholm County, Sweden (Hybrid)

St. Julian's, Malta (Hybrid)

Stockholm, Stockholm County, Sweden (Hybrid)

St. Julian's, Malta (Hybrid)

St. Julian's, Malta (Hybrid)

Stockholm, Stockholm County, Sweden (Hybrid)

England, United Kingdom (Hybrid)

St. Julian's, Malta (Hybrid)

View All Jobs

Get notified when new jobs are added by ComeOn Group

Level Up Your Career in Game Development!

Transform Your Passion into Profession with Our Comprehensive Courses for Aspiring Game Developers.

Job Common Plug