Senior Java Backend Developer (Blockchain) Offline

Our client is a private holding company focused on special situation control investments in the digital assets space. The firm brings together a global crypto-native team with deep expertise in both scaling early-stage ventures and restructuring complex blockchain assets. Their portfolio spans multiple Web3 verticals, including infrastructure, DeFi, and decentralized marketplaces. The company aims to accelerate innovation and long-term value creation in the crypto ecosystem by leveraging operational and technical synergies across projects.

We are looking for a Java/Kotlin Backend  Developer to help build and maintain applications.

Requirements:

• 6-8 years of professional experience with Java
• Basic working knowledge of Kotlin (no advanced Kotlin expertise required)
• Proven experience working on crypto, fintech, or trading-related projects
• Strong understanding of distributed systems, APIs, and multithreaded backend architecture
• Familiarity with modern development workflows, testing, and CI/CD

Nice to Have

• Experience integrating with crypto exchanges or wallets
• Understanding of React Native ecosystem (used in our mobile apps)

Responsibilities:

• Design and implement scalable backend systems in Java (with some services in Kotlin)
• Collaborate closely with mobile and frontend teams (React Native)
• Contribute to architecture discussions, code reviews, and production support
• Optimize data handling and API performance across exchange integrations
• Ensure the system is secure, fault-tolerant, and future-proof
• Work alongside teams in QA, DevOps, and Product to ship robust features

What we offer: 
 

• Remote working format 
• Flexible working hours
• Informal and friendly atmosphere
• The ability to focus on your work: a lack of bureaucracy and micromanagement
• 20 paid vacation days
• 7 paid sick leaves
• Education reimbursement
• Free English classes
• Psychologist consultations

Recruitment process: Recruitment Interview - Technical Interview - Customer interview - Customer Technical Interview - Final Interview