Backend Engineer (Contract)

Company Overview: We are a dynamic and innovative technology company dedicated to transforming the decentralized web. Our mission is to develop cutting-edge decentralized applications (dApps) that leverage blockchain technology to empower individuals and organizations. We are seeking a talented and experienced Backend Engineer to join our team, bringing expertise in NodeJs server frameworks like Nest.js, SQL Databases, Web3 knowledge of EVM.

This is a 3-6 month contract, with the possibility to continue longer. If you are a skilled Backend Dev looking for an opportunity in the web3 space, here's your chance!

Key Responsibilities:

1. Backend Development:

• Design, develop, and maintain backend systems, ensuring the reliability, scalability, and security of our applications.
• Collaborate with cross-functional teams to translate frontend requirements into efficient and effective server-side functionality.
• Write clean, maintainable, and well-documented code while adhering to coding standards and best practices.
• Participate in code reviews to maintain code quality and consistency.

2. Web3 Integration:

• Leverage expertise in Web3 technologies, including blockchain integration (EVM, Solana, Near, etc.), to enable seamless interaction between our applications and decentralized networks.
• Develop and maintain Web3-specific functionalities such as wallet connectivity, smart contract interactions, and decentralized identity.
• Optimized querying of data aggregation of blockchain data.

3. Database Management:

• Create and optimize database schemas and queries for SQL and NoSQL databases to efficiently store and retrieve data.
• Implement data migration and transformation processes as needed to support application functionality.

4. API Development:

• Develop and maintain RESTful APIs, ensuring they meet the requirements of both internal and external stakeholders.
• Integrate third-party APIs and services to enhance application capabilities and functionality.

5. Performance Optimization:

• Identify and address performance bottlenecks in the backend systems, optimizing response times and resource utilization.
• Implement caching mechanisms and other strategies to improve system performance.

6. 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.
• Ensure compliance with relevant data protection and privacy regulations, such as GDPR or HIPAA, as applicable.

7. Testing, Troubleshooting and Debugging:

• Writing unit, integration, and end-to-end tests.
• Debug and resolve backend issues and incidents, collaborating with the team to identify root causes and implement solutions.
• Develop and maintain logging and monitoring systems to proactively identify and address potential issues.

8. Documentation and Knowledge Sharing:

• Create and maintain documentation for backend systems, including architecture diagrams, API documentation, and codebase documentation.
• Share knowledge and best practices with the team, promoting a culture of continuous learning and improvement.

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.
• English is your native language.
• 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.