Mid Web3 Backend Developer
Nextrope is a boutique engineering company that builds production digital-asset infrastructure on EVM and XRPL.
About Nextrope
Nextrope provides end-to-end engineering services for production blockchain systems, combining smart contracts with backend services, integrations, custom indexers, data pipelines, monitoring, and post-launch operational support. Its work covers tokenization and real-world assets, stablecoin payments and settlement, DeFi lending and yield infrastructure, XRPL integrations, and applied AI/RAG automation for finance workflows. The company serves banks, fintechs, asset issuers, and blockchain protocols, with cited production work for Alior Bank and Soil.co.
Skills
About the Role
Join an agile team delivering the full lifecycle of web3 software solutions, from requirements and architecture through design, development, testing, deployment, and maintenance. You will build efficient, secure, scalable, and maintainable backend systems, maintain system documentation, review requirements, propose solutions, support operations, and collaborate with architects, frontend developers, designers, and product managers.
Requirements
- At least 3 years of experience as a web3 backend developer or relevant Web 3.0 exposure.
- Proficiency in backend technologies such as Node.js, Nest.js, and Solidity.
- Deep understanding of blockchain interactions, smart contract integrations, and decentralized data storage.
- Familiarity with Web3 middleware platforms and tools.
- Knowledge of decentralized identity, on-chain data querying, and off-chain integration techniques.
- In-depth knowledge of DeFi protocols, oracle services, and layer-2 scaling solutions.
- Understanding of cryptographic principles and web3-specific security practices.
- Ability to collaborate with frontend developers, designers, and product managers.
- Continual learning attitude and awareness of emerging web3 trends and best practices.
- Residence in the European Union.
Responsibilities
- Participate in the full software delivery lifecycle, including requirements, architecture, design, development, testing, deployment, and maintenance.
- Design, develop, and maintain high-quality, efficient backend code.
- Apply best practices for performance, security, scalability, and maintainability.
- Update and maintain system design documents.
- Review functional and technical requirements and provide feedback.
- Define and propose solutions to meet requirements.
- Work with technical architects to ensure system designs follow industry best practices.
- Provide operational support expertise.
- Collaborate with frontend developers, UI/UX designers, and product managers.
Benefits
- 20-26 paid days off
- Remote work
- Flexible hours
- Contract of your choice
Hiring Process
1. Application review: submit a CV or short note with work links. 2. Short call lasting 20–30 minutes. 3. Practical task, depending on the role. 4. Final interview covering technical choices and working style. 5. Decision with feedback and next steps.
