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.