Senior Backend Engineer (Node.js/iGaming)

TL;DR

Senior Backend Engineer (Node.js/iGaming): Developing and maintaining high-scale backend services for a skill-based mobile gaming platform with an accent on payment systems and fraud prevention. Focus on designing resilient, high-performance architectures and integrating secure banking transactions.

Location: Hybrid work model based in Warsaw, Poland

Company

hirify.global creates skill-based mobile games that combine competition and real rewards for millions of players worldwide.

What you will do

• Develop and maintain a high-scale backend platform serving millions of users.
• Design and implement end-to-end solutions to reduce time-to-market and improve system efficiency.
• Write high-quality, performant, and maintainable code following industry best practices.
• Experiment with new technologies, tools, and third-party frameworks to drive innovation.
• Mentor new team members and contribute to a culture of engineering excellence.

Requirements

• 6+ years of experience in server-side development and architecture.
• Hands-on experience in cloud-based architectures and scalable backend systems.
• Proficiency in Node.js or another major backend language.
• Experience or strong interest in agentic coding and AI-assisted development tools.
• Problem-solving mindset and ability to work in a fast-paced environment.

Culture & Benefits

• B2B Service agreement with competitive compensation.
• Flexible hybrid work model with a modern office in central Warsaw.
• Medical services via Luxmed.
• Multisport card and monthly Pyszne.pl vouchers.
• Team-building activities including monthly Happy Hours.
• Office perks including snacks and breakfasts.