Senior Node.js Developer for CMS Core Tech

GR8_TECH builds B2B iGaming platforms for operators who play to lead.

We deliver full-cycle, high-impact tech designed to scale — from seamless integrations and expert consulting to long-term operational support. Our platform powers millions of active players and drives real business growth. Call it what it is: the iGaming Platform for Champions.

With 1000+ GR8 people across locations and time zones, we don’t just ship technology — we help operators build success stories across brands, markets, and geos.

Our ambition drives us. Our people make it real.

If you’re a challenger in spirit and a champion in action — join us.

Why this role exists:

We're looking for a strong individual contributor who owns complex backend features end-to-end — from technical design through production delivery. You'll work independently on challenging problems, write high-quality code at scale, and raise the bar for the team by mentoring less experienced engineers and maintaining engineering standards through thorough code reviews.

What you’ll drive

• Software Architecture and Backend Development

• • Design and implement scalable, resilient backend services and APIs.

• • Write, test, and debug complex code across new and existing application.

• • Own features end-to-end: from understanding requirements, through implementation, to production monitoring.

• • Identify and resolve complex technical problems, including performance bottlenecks and architectural debt.

• • Maintain comprehensive technical documentation for systems you build.

• Collaboration & Mentorship

• • Mentor junior and mid-level engineers through pairing, knowledge sharing, and day-to-day guidance.

• • Conduct thorough code reviews to ensure quality, security, and adherence to best practices.

• • Collaborate with cross-functional teams (product, design, operations) to clarify requirements and align on technical approach.

• • Proactively communicate technical trade-offs and progress within the team.

• What makes you a GR8 fit:

• Must-have

• • 5+ years of hands-on backend engineering experience with a strong track record of delivering complex systems.

• • Upper-intermediate or higher level of English.

• • Understanding of system design: microservices, event-driven architecture, resilient patterns, delivery guarantees, CAP theorem.

• • Database knowledge: relational and non-relational databases, SQL optimization, indexing, normalization/denormalization, ACID properties, transaction isolation.

• • Working knowledge of Docker, Kubernetes basics, CI/CD pipelines, and Git workflows.

• • Strong problem-solving skills: ability to break down ambiguous problems, make pragmatic decisions, and communicate reasoning clearly.

• • Advanced proficiency in Node.js and TypeScript, including runtime internals, event loop, async programming, and core modules.

• • Advanced TypeScript: strict typing, generics, decorators, utility types, and metaprogramming patterns used in NestJS.

• • Proficiency in designing and implementing scalable RESTful APIs and microservices using NestJS (modules, providers, guards, interceptors, microservices transport, Swagger).

• • Event-driven architecture: Kafka for async messaging, BullMQ for background job processing.

• • Cloud & infrastructure: AWS SDK (S3, Bedrock), Docker/Docker Compose, Prometheus metrics, GitLab CI/CD

• 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.

• Why you’ll love working here:

Benefits Cafeteria — annual budget you allocate to

• Sports • Medical • Mental health • Home office • Languages.

• Work-life & support

• • Paid maternity/paternity leave + monthly childcare allowance.

• • 20+ vacation days, unlimited sick leave, emergency time off.

• • Remote-first + tech support + coworking compensation.

• • Team events (online/offline/offsite).

• • Learning culture with internal courses + growth programs.

• Our culture & core values:

• GR8_TECH culture is how we win — through trust, ownership, and a growth mindset. We move fast, stay curious, and keep it real, with open feedback, room to experiment, and a team that’s got your back.

• FUELLED BY TRUST: we’re open, honest, and have each other’s backs.

• OWN YOUR GAME: we take initiative and own what we do.

• ACCELER8: we move fast, focus smart, and keep it simple.

• CHALLENGE ACCEPTED: we grow through challenges and stay curious.

• BULLETPROOF: we’re resilient, ready, and always have a plan.