Senior Backend Developer (iGaming)

TL;DR

Senior Backend Developer (Node.js/iGaming): Building and optimizing scalable backend services and APIs for a B2B iGaming platform with an accent on microservices and event-driven architecture. Focus on resolving architectural debt, optimizing database performance, and mentoring engineers to ensure high-quality production delivery.

Location: Remote-first

Company

GR8_TECH builds B2B iGaming platforms for operators, providing full-cycle high-impact tech designed to scale globally.

What you will do

• Design and implement scalable, resilient backend services and APIs using NestJS.
• Own complex backend features end-to-end, from technical design to production monitoring.
• Identify and resolve technical problems, including performance bottlenecks and architectural debt.
• Mentor junior and mid-level engineers through pairing, knowledge sharing, and code reviews.
• Collaborate with cross-functional teams (product, design, operations) to align on technical approaches.
• Maintain comprehensive technical documentation for all developed systems.

Requirements

• 5+ years of hands-on backend engineering experience delivering complex systems.
• Advanced proficiency in Node.js and TypeScript, including runtime internals and async programming.
• Expertise in NestJS and event-driven architecture using Kafka and BullMQ.
• Strong understanding of system design: microservices, CAP theorem, and resilient patterns.
• Deep database knowledge: SQL optimization, indexing, and ACID properties.
• English: Upper-intermediate (B2) or higher required.

Nice to have

• Experience with Go or .NET.
• Experience with Strapi CMS or similar headless CMS platforms.
• Familiarity with Terraform/Terragrunt for infrastructure-as-code.

Culture & Benefits

• Annual benefits cafeteria budget for sports, medical, mental health, home office, and languages.
• Remote-first approach with coworking compensation and technical support.
• 20+ vacation days, unlimited sick leave, and emergency time off.
• Paid maternity/paternity leave and monthly childcare allowance.
• Continuous learning culture with internal courses and growth programs.