Node JS Developer

Context for the Candidates:

Blockchain engineers are tasked with building secure, scalable, and high-performance decentralized applications. This discussion focuses on how to utilize key technologies—Node.js, Rust, Go, TypeScript, Ethers.js, viem, and Hardhat—in smart contract and blockchain system development, while addressing the practical challenges that arise in such projects.

Key Discussion Points:

• How do you integrate Node.js, Rust, Go, and TypeScript in blockchain-backed applications?

• Discuss the trade-offs between using Rust or Go for performance-critical blockchain services.

• What are the key challenges in ensuring the security and scalability of smart contracts using tools like Ethers.js, viem, and Hardhat?

• How do you approach testing, debugging, and deploying smart contracts in a decentralized environment?

• Share best practices for gas optimization, contract upgradability, and backend scalability.

Evaluation Criteria:

1. Technical Knowledge:

• Strong knowledge of Node.js, Rust, Go, and TypeScript with practical experience in blockchain development.

• Proficiency in Ethers.js, viem, Hardhat, and smart contract lifecycle (development, testing, deployment).

• Understanding of security best practices, performance optimizations, and scalability in decentralized systems.

2. Problem-Solving and Integration Skills:

• How candidates approach integrating smart contract solutions with backend services using Node.js, Rust, Go, and TypeScript.

• Solutions proposed for common challenges in blockchain projects such as gas fees, security vulnerabilities, and system bottlenecks.

3. Experience and Expertise:

• Minimum of 2 years of IT experience, including hands-on development with the specified technologies.

• Practical knowledge of blockchain architecture, consensus mechanisms, and decentralized application deployment.

4. Innovation and Critical Thinking:

• Candidates’ ability to think creatively about system architecture, proposing scalable and secure solutions for blockchain-based applications.

• Discussion on the future potential of blockchain technology and how the tech stack can evolve.

5. Communication and Team Collaboration:

• Clear articulation of technical challenges and how to address them in a team setting.

• Ability to lead or contribute to discussions in a way that encourages collaboration and team-driven problem-solving.

Position: Backend Developer - MERN - GraphQL

Location: Surat, Gujarat

Company: Glazer Labs

Overview: As a Backend Developer at Glazer Labs, you will be at the heart of our technical team, responsible for designing, developing, and maintaining the server-side logic of our engagement platform for the gaming community. Your expertise will ensure the seamless integration of front-end elements, robust performance, and high scalability, contributing to a world-class user experience.

Key Responsibilities:

• Server-Side Development: Architecture Design: Design and implement scalable and efficient server-side architecture using Node.js and Express.js. Database Management: Develop and maintain databases, ensuring data integrity, security, and optimal performance using MongoDB or other relevant databases. API Development: Create and maintain RESTful and GraphQL APIs to support various frontend functionalities and third-party integrations.
• Performance Optimization: Scalability: Design and implement solutions to ensure the application can scale efficiently to handle increasing user loads. Load Balancing: Utilise load balancing techniques and tools to distribute traffic effectively across multiple servers. Caching: Implement caching strategies using Redis, Memcached, or similar technologies to enhance application performance and reduce latency.
• Security Implementation: Data Security: Ensure robust security practices, including data encryption, authentication, and authorization mechanisms to protect user data. Vulnerability Management: Regularly conduct security audits and vulnerability assessments, implementing necessary fixes and improvements. Compliance: Ensure compliance with industry standards and regulations, such as GDPR, to maintain user trust and legal integrity.
• Integration and Collaboration: Third-Party Integrations: Integrate third-party services and APIs, such as payment gateways, social media platforms, and analytics tools. Cross-Functional Collaboration: Work closely with frontend developers, mobile app developers, product managers, and UX/UI designers to ensure seamless integration and functionality. DevOps Collaboration: Collaborate with DevOps teams to automate deployment processes, monitor server performance, and implement CI/CD pipelines.
• Code Quality and Best Practices: Clean Code: Write clean, maintainable, and well-documented code following best practices and coding standards. Code Reviews: Conduct thorough code reviews, providing constructive feedback and ensuring adherence to coding standards. Testing: Implement comprehensive testing strategies, including unit tests, integration tests, and end-to-end tests, using tools like Mocha, Chai, or Jest.
• Monitoring and Maintenance: Monitoring: Implement and manage monitoring tools like New Relic, Prometheus, or Grafana to track server performance and uptime. Logging: Set up and manage logging solutions to monitor application health and troubleshoot issues efficiently. Incident Response: Develop and maintain incident response protocols to ensure rapid resolution of production issues and minimal downtime.
• Data Management: Database Design: Design efficient database schemas and ensure optimal indexing and query performance. Backup and Recovery: Implement robust backup and disaster recovery strategies to safeguard data. Data Analysis: Collaborate with data analysts to provide necessary data access and support data-driven decision-making.
• Continuous Improvement: Skill Enhancement: Stay updated with the latest trends and technologies in backend development, continuously improving your skills and knowledge. Knowledge Sharing: Participate in and contribute to knowledge-sharing sessions, workshops, and mentoring programs. Innovation: Explore and implement innovative solutions to enhance the backend infrastructure and overall application performance.

Qualifications:

Experience: Minimum 3+ years of experience in backend development, with a strong focus on Node.js, Express.js, and MongoDB. Proven experience in designing and implementing scalable, high-performance server-side architectures.

Technical Skills:

Node.js/Express.js / GraphQL Expertise: Strong proficiency in Node.js, GraphQL and Express.js, including asynchronous programming and middleware.

Database Management: In-depth knowledge of MongoDB and experience with other databases (SQL or NoSQL).

API Development: Experience in designing and implementing RESTful and GraphQL APIs.

DevOps Practices: Familiarity with CI/CD pipelines, containerization (Docker), and cloud services (AWS, Azure, or GCP).

Security Practices: Strong understanding of web security principles and best practices.

Testing Frameworks: Proficiency with testing frameworks and tools for backend development.

Soft Skills:

Problem-Solver: Strong analytical and problem-solving skills, with a proactive approach to identifying and resolving issues.

Detail-Oriented: Attention to detail and commitment to delivering high-quality, reliable backend solutions.

Team Player: Ability to work effectively in a collaborative team environment.

Effective Communicator: Excellent verbal and written communication skills, with the ability to articulate technical concepts to non-technical stakeholders.

Education: Bachelor's degree in Computer Science, Information Technology, or a related field, or equivalent practical experience.

By joining Glazer Labs, you will have the opportunity to shape the backbone of our engagement platform for the gaming community, leveraging your expertise to build a robust, scalable, and high-performing backend infrastructure. Your contributions will be pivotal in delivering an exceptional user experience and driving our product forward.

We are looking for an experienced Back-end developer to join our IT team! As a Back-end Developer, you will be responsible for the server-side web application logic as well as for the integration of the front-end part. 

• Be involved and participate in the overall application lifecycle
• Main focus on coding and debugging
• Collaborate with Front-end developers 
• Define and communicate technical and design requirements
• Provide training, help and support to other team members
• Build high-quality reusable code that can be used in thew future
• Develop functional and sustainable web applications with clean codes
• Troubleshoot and debug applications
• Learn about new technologies
• Stay up to date with current best practices
• Conduct UI tests and optimize performance
• Manage cutting-edge technologies to improve applications
• Collaborate with multidisciplinary team of designers, developers and system administrators
• Follow new and emerging technologies

• NoSQL DB (MongoDB, CouchDB), PostgreSQL
• Mocha test environment
• Should JS testing framework
• Experience implementing mock services
• Nock API mocking
• NPM, Redis
• Typescript / Coffee script experience will be an added advantage
• Experience working with opensource JS projects
• Experience in developing REST API
• Source code management tool - Git / GitHub
• Understanding of TCP/IP networking and client/server web programming model
• Good communication skills
• Should be able to work with the cross-geo client team