Senior Backend 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.

Key Responsibilities:

• Rewrite existing APIs in NodeJS.
• Remodel the APIs into Micro services-based architecture.
• Implement a caching layer wherever possible.
• Optimize the API for high performance and scalability.
• Write unit tests for API Testing.
• Automate the code testing and deployment process.

Skills Required:

1. At least 3 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds.
2. Excellent hands-on experience using MySQL or any other SQL Database.
3. Good knowledge of MongoDB or any other NoSQL Database.
4. Good knowledge of Redis, its data types, and their use cases.
5. Experience with graph-based databases like GraphQL and Neo4j.
6. Experience developing and deploying REST APIs.
7. Good knowledge of Unit Testing and available Test Frameworks.
8. Good understanding of advanced JS libraries and frameworks.
9. Experience with Web sockets, Service Workers, and Web Push Notifications.
10. Familiar with NodeJS profiling tools.
11. Proficient understanding of code versioning tools such as Git.
12. Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms.
13. Should be a fast learner and a go-getter — without any fear of trying out new things Preferences.
14. Experience building a large scale social or location-based app.

Position Overview: We are looking for a senior developer who must be capable of building services using modern microservices architecture with NodeJS & serverless frameworks. Should have strong knowledge of ObjectOriented Concepts, and Node. Js frameworks like loopback, RDBMS, and microservice patterns. The candidate should be comfortable with application coding based on design and specifications, and also be comfortable working with JSON and RESTful services. The candidate must be a top-notch developer committed to keeping learning new things and becoming an integral part of and fostering growth within our development team.

Roles & Responsibilities:

• Developing and maintaining the backend systems that support the application
• Designing and implementing APIs and Microservices architecture to handle the application workload
• Developing and optimizing queries for RDBMS (MySQL) to manage data and ensure performance and scalability
• Managing and deploying the application on AWS using Lambda, ECS and other related services
• Collaborating with front-end developers to ensure smooth communication between front-end and back-end systems and back-end systems
• Writing clean, neat and reusable code that follows coding standards and best practices.
• Participating in code reviews and ensuring that coding standards are maintained
• Troubleshooting and debugging issues that arise in production environments
• Optimizing the application for performance, scalability, and security
• Continuously learning and staying up-to-date with the latest technologies and best practices in software development
• Documenting technical specifications, processes, and system design

Designation : *Senior Node.js Developer*

CLient Name : *CLIRNET*

Key Responsibilities:

 Design and develop scalable, high-performance backend systems using Node.js

 Write clean, maintainable, and efficient code

 Collaborate with cross-functional teams to identify and solve complex software problems

 Participate in code reviews to maintain code quality standards

 Optimize application for maximum speed and scalability

 Develop and maintain API endpoints

 Implement security and data protection measures

 Develop and maintain automated tests to ensure code quality and coverage

 Participate in Agile development methodologies such as Scrum

Qualifications:

 Minimum of 4 years of experience in Node.js development

 Strong proficiency in Node.js and its core principles

 Experience with backend frameworks such as Express.js

 Experience with automated testing frameworks such as Jest or Mocha

 Strong understanding of software development best practices, including Agile

methodologies

 Familiarity with Git or other version control systems

 Excellent communication skills and ability to work in a collaborative team environment

Sr. Software Developer

Work Experience: 8+ Years

The Number of Vacancies: 2

Location:  

CTC: As per industry standards

About the Job Description

Senior software developers are responsible for designing, testing, and implementing new and updated software programs. They take on a managerial role and lead the development team with all software development tasks. Their job is to ensure all projects are completed on time and to company specifications.

What We Are Seeking

• Hands-on experience in Core Java and Advanced Java.
• Hands-on Java Framework-Architecture and Advanced Concepts Understanding and Implementation in Real-Time Projects
• Knowledge of Weblogic, Microservices
• Experience in developing APIs and RESTful services using Node JS.
• Strong understanding of the usage and implementation of JWT tokens and access control API development.
• Knowledge of AWS, SSL integration, Docker, Postman
• Extensive knowledge of MongoDB, MySQL, Redis, and Oracle.
• Understanding of how to integrate third-party APIs such as Payment Gateway
• Knowledge of code versioning tools such as GIT
• Must have good analytical, debugging, and problem-solving skills.
• Good communication skills.

Responsibilities

• Produce high-quality code and experience with security implementations.
• Collaborating with front-end developers on the integration of elements.
• Running diagnostic tests, repairing defects, and providing technical support.
• Documenting Node.js processes, including database schemas, as well as preparing reports.
• Work with the QA Team to develop testing protocols to identify and correct challenges.

Your Opportunity

You will primarily be responsible for implementing features & building platforms to enable on-device and device/server-side combined ML workflows. You will possess strong skills in object-oriented software design and programming. You are excited about developing new features, maintaining existing code, fixing bugs, and contributing to overall system design.

Your Impact

To design, architect, develop and maintain the backend for AI products by working closely with the Engineering Team. To ensure successful consumption of Saarthi.ai technology by APIs, SDKs, or Applications, thereby enabling productization and monetization of the AI solutions.

What You’ll Do

· Work with development teams and product managers to ideate software solutions

· Design server-side architecture

· Along with SAAS application deliverables even the client-side deliverables need to be taken care

· Develop and manage well-functioning databases and applications

· Write effective APIs

· Test software to ensure responsiveness and efficiency

· Troubleshoot, debug and upgrade software

· Create security and data protection settings

· Build features and applications with a mobile responsive design

· Write technical documentation

· Work with data scientists and analysts to improve software

What You Bring

· Proven experience as a Back-End Developer or similar role.

· Experience developing desktop applications.

· Strong working experience with back-end development using Node.JS, JavaScript.

· Strong knowledge of databases (MongoDB, PostgreSQL).

· Experience with System Design and Architecture.

· Familiarity with common stacks.

· Familiarity with Parallel Threading, Concurrent calling and Aggregation Queries.

· Ability to write quality unit tests

· Setting up CI/CD, and integrating with logging and monitoring systems for the products or platforms

· Excellent communication and teamwork skills.

· Degree in Computer Science, Statistics or relevant field

Roles and Responsibility: 

∙ Develop functional and fast-responsive web applications, using markup languages. ∙ Maintain websites. 

∙ Elaborate mobile-based and web-based features. 

∙ Troubleshoot apps for bugs. 

∙ Fix bugs if necessary and improve usability. 

∙ Improve apps for maximum speed. 

∙ Troubleshoot UI and improve its performance accordingly. 

∙ Employ the latest technology in order to re-built legacy apps. 

∙ Integrate UI elements with server-side ones. 

∙ Detect and fulfill front-end and back-end requirements. 

∙ Perform training and support activities. 

∙ Develop reusable code. 

∙ Write comprehensive manuals, guides, and documents. 

∙ Compile prototype and quality mockups. 

∙ Make sure that high-quality graphic standards are met.

We are looking for a Node.js Developer who has experience building back-end services and managing data exchange between the server and user-facing applications. Responsibilities will include the development of back-end micro-services, maintaining the best possible performance for micro-service, quality and responsiveness of the application. You will work closely with the front-end developers in order to implement their components into the application.

• Writing reusable, testable, and efficient code
• Responsible for entire product lifecycle from concept to deployment
• Design and implementation of low-latency, high-availability, and performant applications
• Integration of user-facing elements developed by front-end developers with server-side logic
• Implementation of security and data protection
• Integration of data storage solutions

• 3+ years experience in building micro-services using Node.js
• Expert in SQL querying with Mysql/PostgreSQL and ORM (Object Relational Mapper) libraries like TypeORM.
• Able to integrate multiple data sources and databases into one system
• Good understanding of server-side templating languages
• Understanding of accessibility and security compliance
• Knowledge of user authentication and authorization between multiple systems, servers, and environments
• Understanding of fundamental design principles behind a scalable application
• Understanding of the differences between multiple delivery platforms, such as mobile vs desktop, and optimizing output to match the specific platform
• Able to create database schemas that represent and support business processes
• Strong unit test and debugging skills
• Proficient understanding of code versioning tools such as Git