Fullstack Lead

JD #1: Backend Engineer

) Full-Stack

Capable

Position: Backend Engineer (Full-Stack with Backend Specialization)

Location: Onsite / Hybrid

Engagement: Full-Time (Contract also possible)

About the Role

Were building a next-generation crypto casino with Moon Originals games (Honeypot,

Blackjack, etc.), wallet integrations (Solana/Ethereum), and game aggregators

(Hub88/SoftSwiss). Were looking for a backend-focused engineer who can own core

services (Auth, Wallet, Ledger, Game APIs) while also contributing to the frontend

for seamless integration with our Figma-based UI.

Responsibilities

Design and develop backend services in (Express/Fastify) with MongoDB Atlas

& Redis.

Implement wallet authentication (EVM wallets, Solana Phantom) and Google login.

Build House Wallet system (deposit play withdraw) with double-entry ledger.

Integrate third-party casino aggregators (Hub88 / SoftSwiss) including session

management and callback handling.

Develop and optimize real-time game services (WebSocket-based Honeypot,

Blackjack, etc.).

Ensure provably fair RNG implementation for original games.

Optimize system for 100k+ concurrent users with Redis caching, load testing, and

socket scaling.

Work on frontend components in for wallet UI, dashboards, and games

integration.

Implement security best practices: JWT rotation, API rate limiting, data encryption,

WAF-ready APIs.

Collaborate on deployment & scaling strategy (Docker, API Gateway, Cloudflare).

Requirements

3+ years of experience with and MongoDB.

Strong knowledge of Redis for caching, rate-limiting, and leaderboards.

Experience with , , Solana Wallet Adapter.

Proven experience with WebSocket development at scale.

Good frontend skills with + modern state management (React

Query/Zustand).

Experience with API design (REST/WebSocket), security, and scaling systems.

Hands-on experience with payment/wallet integrations or crypto-based flows.

Strong debugging, load testing (k6/Locust), and performance tuning skills.

Nice-to-Have

Casino/gaming background (RNG, provably fair systems).

Aggregator integration (Hub88, SoftSwiss, or similar).

Knowledge of microservices & event-driven architecture.

Experience with PWA development.

JD #2: Full-Stack Engineer Casino

Games Development

Position: Full-Stack Engineer (Casino Games Development)

Location: Onsite / Hybrid

Engagement: Full-Time (Contract also possible)

About the Role

Were launching a crypto-native casino featuring Moon Originals and third-party aggregator

games. Were looking for a full-stack engineer who can build end-to-end game experiences

from backend APIs to frontends that bring our Figma designs to life. Youll work on

real-time game logic, wallet flows, and UI to deliver a smooth, secure experience to 100k+

players.

Responsibilities

Build game backends in with MongoDB and Redis (Honeypot, Blackjack, Fly

Birdie Fly).

Develop real-time WebSocket servers for crash games and live multiplier updates.

Implement provably fair mechanics (seed/nonce handling, public verifiers).

Integrate with house wallet APIs (deposits, cashback, withdraws).

Create frontends in matching Figma designs (responsive, PWA-ready).

Develop casino UI features: leaderboards, live chat, MoonBet Bot, game lobbies.

Optimize frontend for fast performance & real-time UX (100k+ concurrent users).

Implement Web3 wallet integration (EVM wallets + Solana Phantom).

Collaborate with backend wallet/auth engineers to ensure secure integration.

Run E2E tests (deposit play win/loss withdraw).

Requirements

3+ years of full-stack development + ).

Experience with game development logic in backend APIs.

Strong WebSocket and real-time data handling experience.

Proficiency in , Tailwind, and modern UI patterns.

Understanding of Web3 wallet connections and crypto flows.

Good knowledge of MongoDB Atlas & Redis for scalability.

Ability to work from Figma designs with pixel-perfect UI execution.

Experience writing secure, scalable code in high-concurrency systems.

Nice-to-Have

Prior work on casino/crash-style games.

Experience integrating aggregator APIs (Hub88, SoftSwiss).

Load testing & performance profiling (k6, Locust).

Knowledge of microservices architecture.