Senior Full Stack Engineer - NodeJS / AWS - Remote

Senior Backend Engineer or FullStack Engineer - NodeJS/TS - RemoteThe Role

A growing Web3 scale-up is looking for a Senior Backend Engineer to build and maintain high-performance backend services for a cutting-edge blockchain-based platform. This role involves working with Node.js and TypeScript to develop scalable, cloud-native solutions, with a strong emphasis on security, performance, and API optimization. The ideal candidate will have deep experience in GraphQL, AWS serverless architectures, and CI/CD pipelines, and will play a key role in shaping the future of decentralized transaction processing.

Key Responsibilities

• Develop and support backend services using Node.js and TypeScript
• Design and enhance GraphQL APIs with Apollo Server and build RESTful APIs using Koa.js
• Integrate backend systems with third-party APIs and external platforms
• Architect and manage AWS serverless solutions, including Lambda, API Gateway, and DynamoDB
• Implement robust authentication and authorization mechanisms using JWT and OAuth
• Improve API efficiency through optimized caching (Redis) and streamlined database queries
• Configure and maintain CI/CD pipelines and automate infrastructure deployment using CloudFormation
• Monitor system health and manage error logging with AWS CloudWatch
• Enhance database indexing and query performance to handle large-scale transactions
• Write and uphold unit, integration, and end-to-end tests with Jest
• Work closely with frontend teams, product managers, and designers to ensure smooth system integration
• Provide guidance to junior developers and conduct code reviews to uphold best practices
• Maintain clear and up-to-date API documentation and system architecture references
• Follow Web3 security protocols and industry best practices to ensure system integrity

About You

• Fluent in English with excellent communication skills
• 8+ years of experience in full stack application development
• Expertise in React.js, React Native, Node.js, and TypeScript
• Experience with REST APIs, GraphQL (Apollo Server), and Prisma ORM
• Solid understanding of relational databases (MySQL) and query optimization
• Strong knowledge of cloud infrastructure (AWS) and related services
• Experience mentoring junior developers and conducting code reviews
• Capable of managing software projects from inception to production deployment

About the Company

This Web3 scale-up is focused on helping enterprises and governments adopt blockchain solutions by providing high-volume transaction processing infrastructure. Clients, whether contracting with nodes or running their own, are at the heart of its mission to build secure, scalable, and high-performance decentralized systems. The company is dedicated to innovation and ensuring that Web3 technology meets enterprise-grade security and compliance standards.

Salary;

€80k - €110k + Bonus