Senior Node.js Developer for CMS Core Tech

Company: GR8_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.

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