Principal Engineer(NodeJS)

Designation – Nodejs Developer

Experience – Min 3+ Yrs

Location: Ahmedabad ( WFO)

We are seeking a highly skilled Senior Node.js Developer with expertise in SQL and MongoDB to join our dynamic team.

As a key member of our development team, you will be responsible for managing the interchange of data between the server and users, as well as developing server-side logic. Your primary focus will be on the development of all server-side logic, ensuring high performance and responsiveness to requests from the front-end. Additionally, your experience with both SQL and NoSQL databases will be crucial in defining and maintaining our data storage solutions.

Responsibilities:

 Develop and maintain server-side applications using Node.js.

 Design and implement RESTful APIs for seamless integration with front-end applications.

 Collaborate with front-end developers to integrate user-facing elements with server-side logic.

 Optimize applications for maximum speed and scalability.

 Implement security and data protection measures.

 Design and maintain database schemas for both SQL (e.g., MySQL, PostgreSQL) and NoSQL (e.g., MongoDB) databases.

 Manage and mentor junior developers, providing technical guidance and support.

 Stay updated with emerging technologies and industry best practices.

Requirements:

 Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent work experience.

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

 Proficiency in JavaScript/TypeScript and frameworks such as Express.js.

 Strong understanding of asynchronous programming and event-driven architecture.

 Experience with SQL databases (e.g., MySQL, PostgreSQL) and proficiency in writing complex SQL queries.

 Experience with NoSQL databases (e.g., MongoDB) and familiarity with their query languages.

 Familiarity with ORM libraries (e.g., Sequelize, Mongoose) for database interaction.

 Knowledge of version control systems (e.g., Git).

 Understanding of CI/CD pipelines and deployment processes.

 Excellent communication and teamwork skills.

 Ability to lead and mentor a team of developers.

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.

Viha Technosoft - building tech products that matter to people

At Viha Technosoft, we’re a happy family of 50+ young and experienced talents. We work in Media and Entertainment (M&E)t, Healthcare, and Payments domains.

We’re looking for a competent individual to help develop a scalable backend system for our project Cast India.With Cast India, We’re out to revolutionize the way people onboard, train, and get opportunity in M&E domain.

• Must-Have Skills

  • Strong knowledge of any PHP web framework Codeigniter, Laravel, CakePHP, Yii, Symfony, etc along with strength in OOPS
  • Understanding of MVC design patterns
  • Working experience with any Payment Gateways is desirable. Experience with REST-based API Development is a must
  • Experience with front-end technologies, such as JavaScript, HTML5, and CSS frameworks along with Angular 6+ and ReactJS
  • Confident with Mysql database, framing complex queries for optimum performance
  • Good knowledge of Javascript, Json, Jquery, Ajax

  Additional Skills

  • Hands-on experience working on Microservices development
  • Integration of multiple data sources and databases into one system

  Build and hosting experience

  • Must have a strong DevOps experience
  • Exhibited CI/CD experience with Jenkins tools and plugins.
  • Strong experience in auto-deployment, deployment testing, and overall automated pipeline management.
  • Good to have knowledge of Cpanel, FileZilla, Docker, and Kubernetes
  • Must have a strong experience with source control tools like GitHub

  Testing

  • Must have strong advanced Unit testing experience and Agile experience
  • Must have strong working experience in agile
  • Must have participated in SCRUM and must be well aware of the scrum ceremonies
  • Must be able to self-manage the pipeline and should be well prepared to meet challenging timelines

  MySQL competency

  • Must be able to write complex queries
  • Understanding and implementation level knowledge of key joins, constraints, and triggers
  • Able to analyze the query and perform query optimization
  • Independently handle the Table DDL and DML statements as part of the development
  • Ability to create ER diagrams and data mapping diagrams and document data entity chang

• Design, develop, test, deploy, maintain, and improve software and new user-facing features across Novo’s products and services.
• Drive technical decisions on a multi-functional, Agile team alongside product management, product design, and engineering.
• Optimize applications for maximum speed and scalability and analyze feedback from customers and internal teams to identify issues and improvement opportunities. 
• Champion a passion for engineering best practices such as code quality, linting, and testing.
• Ensure our software is reliable, extensible, maintainable, debuggable, secure, well-tested and performs well under load.
• Mentor junior engineers in all aspects of planning, development and testing.
• Stay engaged with latest technologies and evaluate strategies to keep the Novo technology stack up to date.

• 5+ years experience in a highly technical role at a hyper-growth startup or fast-paced company.
• Extensive background designing, developing, testing, deploying, maintaining, and improving software.
• Good understanding of Node.js & Javascript.
• Demonstrated ability to translate business goals and initiatives into technical requirements.
• Strong understanding of SQL database.
• Demonstrable experience architecting scalable and cost effective solutions to ensure and support customer growth.
• Experience mentoring junior engineers in all aspects of planning, development and testing.
• Strong understanding of system design and architecture.
• Interest in engaging with latest technologies and evaluating strategies to keep the Novo technology stack up to date.
• Excellent written and verbal communication skills with the ability to collaborate with both technical and non-technical teams effectively.

About SATISFIC
Satisfic is focused on the areas of the IT channel marketing. As the channel catalyst, we connect and empower technology suppliers, solution providers and end-users. Headquartered in Singapore and with teams across key countries in APAC, Satisfic leverages its regional service delivery capabilities to help IT channel succeed and grow. 

Please visit our site at http://www.satisfic.com">www.satisfic.com for further details.

What you will be doing:

• SATISFIC is a product-based company; hence will be required to work on product development and support.
• Need to work on the following technologies – Angular, Node JS, Core Web API and PostgreSQL.
• SATISFIC’s product is hosted in AWS. This will provide you with an opportunity to work on the latest cloud technologies
• Coding computer programs.
• Integrate user-facing elements developed by front-end developers with server-side logic.
• Writing reusable, testable, and efficient code and libraries for future use.
• Implementation of security and data protection.
• Timely completion of daily assigned projects as per requirements
• Complete adherence to all metrics and parameters associated with each project through completion of project.
• Effective Time management.
• Mentor and assist Trainee/ Junior Software Engineers to complete assigned tasks.
• Check coding standards and deliverables against each project/product specifications for their own and their junior engineers before delivery.
• Develop module specification documents for internal purpose.
• Lead continuous improvement activities by driving the implementation of process and product quality improvement initiatives.
• Develop innovative solutions that improve the efficiency and reliability of the deliverables and system.

About your experience:

• Total work experience of more than 5 years and minimum 3+ years in development
• Has led a team of developers and coders on Node js
• 3-4 years of proven experience in Node.Js and frameworks available for it.
• Strong proficiency with JavaScript/TypeScript.
• Troubleshoot and debug applications.
• Expertise with Services (REST, SOAP, JSON) and APIs (Service-oriented architectures).
• User authentication and authorization between multiple systems, servers, and environments
• Integration of multiple data sources and databases into one system
• Understanding fundamental design principles behind a scalable application
• Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform
• Creating database schemas that represent and support business processes.
• Strong interpersonal and communication skills
• Strong analytical abilities
• Project and time management skills
• Quick learner with a positive attitude

Qualifications:

• Master’s / Bachelor’s degree in Computer Science, Software engineering or related area from a good institute is preferred

Reports to: Lead- Software Engineering

Desired candidates must have 3-6 years of experience as NodeJs Developers.

If the candidate cannot relocate to Gurgaon, we can also provide permanent Work from home for this position.

Roles and responsibilities:

• Responsible for understanding functional and business requirements and translate them into effective code
• Provide support till deployment of code into production.
• Ownership for ensuring code optimization, problem diagnosis, and on-time delivery
• Implement solutions as per the pre-defined framework /guidelines and adherence to processes
• Finding an optimal solution for the problem statement
• Conduct peer code review.

What candidate should know about:

• Excellent hands-on experience with Node.Js, Express.Js, JavaScript
• Understanding the nature of asynchronous programming and its quirks and workarounds
• Excellent hands-on experience with MongoDB, Mongo aggregation, MySQL
• Ability to build REST services, Authentications, MVC applications
• Excellent Object Oriented Programming skills and ability to write modular, secure, scalable, and maintainable code
• Experience with Elastic Search, Redis.
• Knowledge about AWS components (S3, EC2, Cloudfront, Redis Clusters, etc.)
• Self-learning abilities are required
• Familiarity with upcoming new technologies is a strong plus

EXPERIENCE: 7 to 9 years in Java 2 Enterprise server side development. Must have applied knowledge of design patterns needed for building REST APIs and services for performance and scale.

SKILLS:

- Problem Solving and application of Object Oriented principles to development

- REST API development using Java, JAX-RPC,

- Server side development using Java, Spring Boot, Node.js

- Concurrent programming with Java

- Database programming in SQL with Oracle, MySQL or other RDBMs.

- Deployment to AWS and Kubernetes and building with Maven

- Affinity towards server side development

- Ability to understand existing code and re-engineer/re-factor/redesign.

- Written and spoken English communication and articulation.

NICE TO HAVE:

 - Working knowledge of GO Lang and Python scripting

- AWS Certifications

- Working knowledge of Elastic Search based persistence and search

- Secure coding practices

EDUCATION: Bachelor or Master's degree in Computer Science, Software Engineering or Information Technology or related disciplines.