Senior Back-End Engineer (вакансія неактивна)

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 100 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

As a Senior Back-End Developer, you will be responsible for designing, developing, and optimizing backend solutions that power our applications. You will work closely with cross-functional teams to ensure our systems are scalable, secure, and performant.

Key Responsibilities:

• Architect, design, and maintain technical solutions across projects
• Conduct code reviews and enforce best practices for clean, maintainable code
• Collaborate with DevOps to enhance infrastructure: CI/CD, monitoring, logging, and reliability
• Develop and improve APIs and ensure data integrity and security
• Investigate, propose, and implement technical solutions for business needs
• Proactively handle system incidents and ensure uninterrupted service

Requirements:

• 5+ years of backend development experience with a strong focus on Node.js and TypeScript
• Experience with NestJS for building scalable backend applications
• Hands-on expertise with PostgreSQL, Redis, and RabbitMQ
• Solid understanding of microservices architecture and event-driven systems
• Familiarity with high-load applications and performance optimization techniques
• Strong problem-solving skills and the ability to work both independently and in a team
• Effective communication skills and a proactive mindset
• English level: Intermediate+ or proficiency in another language.

Nice to Have:

• Experience working with AWS services and Kubernetes
• Knowledge of GitLab, TeamCity, ArgoCD, Grafana, and Prometheus
• Previous experience in Gambling/iGaming or similar high-load industries
• Experience in designing and optimizing database schemas for large-scale applications

Hiring process:

• 1st interview — Recruiter
• 2nd interview — Tech Team
• 3rd interview — CTO & HRD

What we offer:

• Market-level salary in the IT/Gaming industry
• Relocation support to Warsaw
• Referral bonus — bring in awesome people and get rewarded
• Home-Office coverage
• 7-hour working day 10:00–18:00 (including lunch break)
• Hybrid model in Warsaw; full remote — for other locations
• Paid Sick Leave: up to 10 working days per year
• Paid Time Off: 18 vacation days, 10 days off, paid state holidays
• Corporate benefits: medical coverage, sport compensation, compensation for psychological services
• Professional Development Support: reimbursement for external courses, training & certifications
• Corporate English classes (Business or General) — flexible timing
• Buddy Program
• Internal Gamzix Store (earn coins & exchange for branded gifts)
• Corporate team building and activities
• Open and friendly communication

Please note that feedback on your application will be provided within two weeks if a positive decision is made regarding your candidacy.

I give my consent in accordance with the Law on the Protection of Personal Data dated June 1, 2010, No. 2297, effective from January 1, 2011, for the processing of information classified as personal data