Senior Full Stack Engineer

Senior Full Stack Engineer (Remote)
Location: Remote | Team: Core | Level: Senior

Join First Bananas - Help Build the Future of Crypto Gaming

At First Bananas, we're redefining what's possible in crypto gaming. Our mission is simple: deliver a lightning-fast, seamless, and secure gaming experience powered by cutting-edge blockchain technologies. We're building the most advanced crypto casino platform in the world—and we're just getting started.

We're looking for a
Senior Full Stack Engineer (Backend-Leaning)
with strong backend architecture and distributed systems experience, combined with solid front-end proficiency in interactive applications. You'll help scale our platform to millions of players while driving innovation at the intersection of interactive gaming and crypto.

This is a fully remote role. We value autonomy, trust, and flexibility—and expect you to bring energy, ownership, and leadership wherever you work.

What You'll Be Doing
Lead backend architecture and design of highly scalable, low-latency distributed systems

Build and optimize microservices supporting player accounts, wallets, game engines, leader boards, and event-driven features

Ensure performance, reliability, and security of core APIs and services, handling high-throughput transactional workloads.

Design and implement real-time communication (WebSockets, Pub/Sub, and event-driven messaging)

Collaborate cross-functionally with product managers, front-end engineers, and DevOps to deliver end-to-end features

Collaborate closely with front-end and product teams to deliver performant, interactive web-based features using React

Implement observability and monitoring to ensure system health and proactive issue resolution.

Drive best practices across code quality, testing, CI/CD, and deployment processes.

Mentor and guide engineers, contributing to team-wide technical excellence and knowledge sharing.

Technologies You'll Work With
Core Infrastructure
React

PixiJS

NodeJS

Typescript

PostgreSQL

Redis

RabbitMQ

Bonus Skills (Nice To Have Experience With)
Datadog

AWS

CI/CD Pipelines

Must-Haves
What We're Looking For
7+ years of professional software engineering experience, with a focus on backend engineering

Proficiency with and building scalable back-end services, including real-time systems (WebSockets, multiplayer sync).

Experience with Databases, ideally Postgres

Solid understanding of performance optimization, rendering pipelines, and client-server architecture.

Experience in React for high-performance front-end experiences.

Experience with CI/CD pipelines and modern development workflows.

Nice-to-Have
Background in crypto or iGaming

Background in multiplayer gaming, gambling, or iGaming platforms.

Familiarity with game networking protocols, animations, and physics engines.

Experience leading technical initiatives or mentoring engineers.

Knowledge of cloud deployment (AWS) and containerized environments (Docker, Kubernetes, ECS).

Why Join First Bananas?
Be part of a fast-growing and well-funded start-up at the intersection of gaming and blockchain.

Work with a world-class engineering team—collaborative, autonomous, and impact-driven.

Build next-generation systems with full ownership over architecture and implementation.

Remote-first culture with flexible hours, asynchronous communication, and no micromanagement.

A product and mission you'll actually be excited about.

What You'll Get
Why First Bananas?
Competitive Salary
- We pay top-of-market for top-tier talent

Private Health Insurance
- Comprehensive coverage for your peace of mind

$1,000 Home Office Setup Budget
- Build your dream remote workspace on us

Remote-First Work Environment
- Work from anywhere, collaborate globally

Generous Holiday Allowance
- Take the time you need to rest and recharge

Pension Matching
- Invest in your future with our employer-matched pension plan

Flexible Time Off & Hours
- We focus on output, not clocking in

Performance-Related Bonus
- We reward real impact. Hit goals, share the upside

Ready to Build with Us?
We're creating something bold and different—and we want the best minds to help us do it. If you're passionate about infrastructure, performance, and pushing tech boundaries, apply now and let's build the future of crypto gaming together.

Nice-to-have skills

• AWS
• PixiJS
• PostgreSQL
• RabbitMQ
• React
• Redis
• TypeScript

• Valais, Switzerland

Work experience

• Frontend
• Fullstack
• Blockchain

Languages

• English