Middle Back-end developer (Node.js) for Gamzix

Gamzix company, a dynamic player in the iGaming industry:

— was founded in March 2020 with a vision to redefine the world of online slot games
— has already successfully produced 60 slot games
— the team has grown to over 90 skilled professionals and we continue to grow
— two strategically located offices in Europe
— with a strong focus on quality and compliance, we hold the prestigious MGA B2B Critical Supply License
— certifications from industry leaders iTechLabs and GLI, ensuring the highest standards

We are looking for a Middle+ Backend Developer who will be responsible for designing, developing, and deploying applications, working with the back-end development team, and collaborating with other teams to deliver a high-quality software product that meets the company’s business requirements.

Responsibilities:

• Design and develop scalable and optimized APIs to meet business and application requirements, working with Platform and Game teams
• Write clean, efficient, and maintainable code following best practices
• Participate in code reviews to ensure the quality and reliability of the codebase
• Work with DevOps to maintain and enhance CI/CD pipelines and ensure system monitoring and reliability
• Investigate and resolve technical challenges, applying the best tools and approaches
• Design and refine system architecture and database structures to support business goals
• Ensure data integrity and security across all back-end systems
• Take part in task planning, decomposition, and execution of development projects
• Research and adopt new tools, frameworks, and techniques to improve system performance and development efficiency
• Participate in creating and updating technical documentation, including architecture diagrams and API specifications

Requirements:

• At least 4+ years of back-end development experience, with 3+ years working with Node.js and related frameworks, preferably in the gambling industry
• Proficiency in JavaScript, Node.js, and NestJS
• Hands-on experience with databases such as PostgreSQL, OpenSearch, ElastiCache, and Redis
• Familiarity with message brokers like RabbitMQStrong problem-solving abilities with attention to detail
• Effective communication skills for collaboration across teams
• Proactive and self-motivated, with a willingness to continuously learn and improve

Bonus experience:

• Working with AWS and on-premise infrastructure
• Knowledge of tools such as GitLab, TeamCity, ArgoCD, Grafana, and Prometheus
• Experience in designing and developing database schemas

Languages:

• Proficiency in English at an Intermediate+ level, or a similar proficiency in another language

Hiring process:

• 1st interview — recruiter
• 2nd interview — hiring manager

What we offer:

• 7-hour working day 10:00 AM — 6:00 PM (with the lunch break)
• Hybrid format of the working day
• A-class office, Mokotow, Warsaw
• Competitive salary in the IT field, fixed in €
• Paid taxes
• State holidays are paid
• 10 days for paid sick leave
• 28 days of paid vacation: 18 and 10 days separately
• Medical Insurance
• Courses/training reimbursement
• Corporate English courses: business or general, morning or evening schedule
• People-oriented company with the work-life balance
• Opened and friendly communication
• Corporate team buildings and activities