✍️ Senior Backend Ruby Developer (Crypto Banking / TON Ecosystem) $4,000/month (net) + bonuses #Backend #Ruby #Crypto #TON #Blockchain #Remote Company: CryptoBank TON — a crypto banking platform built on the TON ecosystem. The project focuses on financial automation, DeFi solutions, and deep blockchain integration, building high-load systems for secure and fast crypto banking. ✦ Job Description: We’re looking for a Senior Backend Ruby Developer to build and scale the backend of a crypto banking product. You’ll work on high-load systems, TON blockchain integrations, and core financial infrastructure in a fast-growing Web3 project. Key Responsibilities: – Develop and maintain backend services in Ruby for crypto banking. – Integrate with the TON ecosystem, Prisma ORM, and Neon (PostgreSQL). – Optimize performance and ensure system reliability. – Work with APIs using Hono and Vite. – Design backend architecture, participate in code reviews, and collaborate with the team. ✦ Qualifications: – 5+ years of experience with Ruby (senior level). – Experience building and optimizing high-load systems. – Strong understanding of algorithms, data structures, and fintech security. – Hands-on experience with blockchain integrations. ✦ Preferred Qualifications: – Knowledge of DeFi and TON smart contracts. – Experience with JavaScript / TypeScript for frontend or integrations. Location: Remote (any location) Contact: @leo_lomaev ❗️ Forward the job posting when applying. 🫡 ✦ @HOLDER_JOB_DEVS