Senior Backend Engineer

Job not on LinkedIn

🕒 October 22, 2025

🗽 New York – Remote

🗽 New York – Remote

⏳ Contract/Temporary

🟠 Senior

🔙 Backend Engineer

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InsomniaLabs

WebsiteLinkedInAll Job Openings

1 - 10 employees

Impossible is nothing

📋 Description

• Backend Development: Design, develop, and maintain backend systems, ensuring the reliability, scalability, and security of our applications. • Web3 Integration: Leverage expertise in Web3 technologies, including blockchain integration (EVM, Solana, Near, etc.), to enable seamless interaction between our applications and decentralized networks. • Database Management: Create and optimize database schemas and queries for SQL and NoSQL databases to efficiently store and retrieve data. • API Development: Develop and maintain RESTful APIs, ensuring they meet the requirements of both internal and external stakeholders. • Performance Optimization: Identify and address performance bottlenecks in the backend systems, optimizing response times and resource utilization. • Security and Compliance: Implement security best practices to protect against common web application vulnerabilities, such as SQL injection, cross-site scripting (XSS), and data breaches. • Testing, Troubleshooting and Debugging: Writing unit, integration, and end-to-end tests. • Documentation and Knowledge Sharing: Create and maintain documentation for backend systems, including architecture diagrams, API documentation, and codebase documentation.

🎯 Requirements

• 4+ years of experience as a backend engineer building and maintaining scalable systems. • Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field, or equivalent professional experience. • Backend development experience using Nest.js, TypeScript. • Strong database management skills, including experience with SQL and/or NoSQL databases. • Experience with system design and architecture. • Strong critical thinking and problem-solving skills, attention to detail, proactiveness, and a passion for delivering high-quality solutions. • Expertise in easy frontend integration to backend APIs. • Expertise in Web3 technologies, including blockchain integration (EVM, Solana, Near, etc.), wallet connectivity, and smart contract interactions. • Knowledge of security best practices and experience implementing security measures in backend systems. • Familiarity with caching mechanisms, performance optimization techniques, and monitoring tools. • Excellent problem-solving skills and the ability to troubleshoot and debug complex issues. • Effective communication and teamwork skills, with the ability to collaborate with cross-functional teams. • Commitment to staying updated with industry trends and emerging technologies in both backend development and Web3 integration.

🏖️ Benefits

• Flexible work arrangements • Professional development