11+ Socket Programming Jobs in Kolkata | Socket Programming Job openings in Kolkata

We're looking for a capable and motivated DevOps Engineer with experience working on MERN stack, to take ownership of an already deployed web-based platform. You'll manage infrastructure, monitor performance, handle deployments, and execute minor bug fixes and aesthetic changes.

The application is built on Node.js, React, and MongoDB, hosted on a Linux environment, and integrated with Google Maps APIs. We're not a large team - yet - but our product is live and scaling. This is a rare opportunity to be the central technical anchor in a growing operation.

Key Responsibilities

• Manage production Linux servers, firewalls, SSL, ports, and domains
• Deploy updates and maintain the Node.js + React app using GitHub
• Handle backups, patches, and routine server maintenance
• Debug and resolve minor code issues (backend and UI-level)
• Perform minor enhancements like UI color/icon changes
• Ensure application uptime and respond to critical outages when required

Requirements

• Experience deploying and maintaining MERN stack apps
• Comfortable working in Linux CLI and managing infrastructure
• Able to handle deployments, GitHub workflows, and SSH-based setups
• Self-sufficient, resourceful, and proactive in learning/fixing independently
• Experience with MongoDB setup (local or remote) and user access configuration
• Familiarity with Google Maps API integration

Nice-to-Haves

• Familiarity with CI/CD, GitHub Actions, Docker, or automation tools
• Prior experience with Google Maps or similar integrations.
• Next.js, TypeScript, Go/RUST, PostgreSQL, Apache Kafka
• Experience working in small teams or early-stage tech environments
• Comfortable using tools AI-like or documentation to solve problems independently

Work Expectations

• This is not a round-the-clock monitoring role, but flexibility is expected during emergencies or urgent fixes.
• You'll have broad control and independence, but must be capable of owning the application end-to-end.

Job Title: Full Stack Developer

Company: Fortmindz

Location: Kolkata, India

About Fortmindz:

Fortmindz is a cutting-edge software development company that specializes in delivering innovative and intuitive mobile applications. We are looking for a talented Full Stack Developer to join our team and help us build world-class applications.

Responsibilities:

• Develop, test, and deploy web applications using both front-end and back-end technologies
• Collaborate with cross-functional teams to define, design, and ship new features
• Write clean, efficient, and maintainable code
• Troubleshoot and debug applications to optimize performance and user experience
• Stay up-to-date with new technologies, frameworks, and industry best practices
• Participate in code reviews and contribute to the continuous improvement of our development process

Requirements:

• Bachelor's or Master's degree in Computer Science or a related field
• At least 3 years of experience as a Full Stack Developer or in a similar role
• Strong knowledge of HTML, CSS, and JavaScript
• Experience with at least one of the popular front-end frameworks such as React, Angular, or Vue.js
• Experience with at least one of the popular back-end frameworks such as Node.js + Express Js, Laravel, Ruby on Rails, or Django
• Familiarity with Git and agile development methodologies
• Good understanding of RESTful APIs and web services
• Excellent problem-solving and debugging skills
• Strong communication and teamwork skills

Benefits:

• Competitive salary and benefits package
• Opportunities for career growth and professional development
• A dynamic and inclusive work environment
• Access to cutting-edge technologies and tools

If you are a talented Full Stack Developer who is passionate about building high-quality web applications, we would love to hear from you! Please submit your resume and a cover letter highlighting your relevant experience.

Fortmindz is an equal opportunity employer and values diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

Principal Software Engineer

Opportunity in this role / Why should you join here?

You will enjoy working with us if you are looking to work in a stimulating, flexible, open environment. You will experience ownership and independence at the same time providing technical solutions that work.

You will be part of the madness and thrill of growing the business from scratch. You get to make decisions, fail fast and learn fast. You get to contribute, add value to the organization by thinking like an entrepreneur. You are supported by the best talent in the industry and work with creative teams. You are rewarded as you go on proving yourself.

Requirements:

• Bachelor's degree in Computer Engineering/Computer Science or related field
• At least 6+ years of experience with at least 4 years of software application design experience
• Strong analytical and problem solving skills
• A full stack generalist with experience in both front-end and back-end technologies
• Proven experience in high-level programming languages, like Java and Development of scalable Web Applications and Web Services
• Experience in JavaScript frameworks like Angular, React, NodeJS
• Passion for delivering products end-to-end, from ideation to implementation
• Proven experience building complex web applications and micro services
• Strong experience with Spring Boot stack (spring cloud, spring-data)
• Extensive experience in developing and consuming REST APIs
• Experience in PHP is a plus advantage

Responsibilities:

• Participate in design reviews and recommend improvements
• Provide technical guidance in software design and development activities
• Recommend new technologies to ensure quality and improve productivity
• Support in all phases of SDLC and ensure delivery of high-quality products
• Analyse business requirements and design/develop most effective technical solution
• Analyse and troubleshoot application issues in a timely fashion
• Work with other engineers in planning, prioritising and executing assigned tasks within deadlines

x• Work with QA team in preparing test cases and assist in automation

• Mentor other Engineers as and when required
• Assist in maintenances and upgrades of existing software applications
• Assist in risk assessment and mitigation activities.
• Assist in technical audits and make sure to implement audit recommendations.

Designation: Junior C/C++ Developer

Qualification: - MSc in Computer Science / Btech in CSc. or IT

Job Responsibilities:

·        Strong C/C++ programming skills

·        Strong Shell Scripting skills

·        Strong debugging skills using debuggers like GDB

·        Debug and resolve issues in existing codebase, identifying and fixing bugs to ensure the stability and performance of the software.

·        Familiarity with Linux programming environment.

***Immediate joiners preffered***

Are you a dynamic Full Stack Developer seeking your next challenge? We are a rapidly expanding technology-focused Consulting Agency renowned for its innovative approach. We are seeking an exceptionally skilled Full Stack Developer to join our engineering team. If you're eager to demonstrate your expertise and collaborate with a talented group of developers, this role is ideal for you!

We are at the forefront of technological innovation, providing cutting-edge solutions to clients across diverse sectors. With a strategic focus on finance, banking, and corporate verticals, they are recognized for their excellence in project delivery.

Your Role: Full Stack Developer

As a Full Stack Developer, you will be a vital collaborator within the development team, contributing to the completion of web and mobile projects. Your exceptional communication, organizational, and time management skills will set a high standard for your peers.

Responsibilities:

- Collaborate seamlessly with project managers, senior architects, and fellow developers to complete development projects.

- Demonstrate proficiency in React and other relevant technologies to develop secure and scalable software solutions.

- Maintain meticulous attention to detail while understanding complex technical requirements.

- Lead quality assurance checks to ensure accuracy before project delivery.

- Ensure on-time project completion, adhering to established timelines.

Qualifications:

- At least 3 years of hands-on experience in React

- Experience with Node JS, ExpressJS and MySQL

- Hands-on experience with Redux, JSON

- Proficiency in JavaScript showcasing a strong grasp of modern development languages.

- Essential familiarity with Azure or AWS,

- Experience with Dev Containers (VSCode) and Docker for efficient development is a plus

- Proven track record in full-cycle development.

About You:

- Approach your work with an unwavering work ethic, innate self-motivation, and a commitment to staying current with the latest technologies.

- Thrive as a collaborative team player who excels in dynamic environments.

- Adapt quickly to evolving contexts and guide projects toward successful outcomes.

- Communicate effectively through written and verbal means, backed by strong interpersonal skills.

- Excel under pressure, learn rapidly and meet tight deadlines with minimal supervision.

What's In It For You?

- Immerse yourself in an inclusive and collaborative work environment that promotes creativity and curiosity, celebrating achievements along the way.

- Access cutting-edge tools and technology to create exceptional customer experiences.

- Participate in post-work social engagements to further build connections.

👋🏼We're Nagarro.

We are a Digital Product Engineering company that is scaling in a big way! We build products, services, and experiences that inspire, excite, and delight. We work at scale across all devices and digital mediums, and our people exist everywhere in the world (19000+ experts across 33 countries, to be exact). Our work culture is dynamic and non-hierarchical. We are looking for great new colleagues. That is where you come in!

REQUIREMENTS:

• Experience: 5.5-8.5 years
• Must Have: Design patterns (Expert), Game Development - General Experience, HTML5 (Expert), JavaScript (Expert), PixiJS
• Skills: ReactJS + HTML + CSS + ReactMaterialUI - Frontend developer with hands on experience in React JS Or Angular.
• Must has prior experience in developing microservices for customer facing channels. - Implementing pixel perfect design of components.
• Candidate should have good knowledge of working with React JS, NodeJS, advanced JavaScript, HTML5, CSS3,Mongo DB,
• Component-based frontend architecture along with how to design components in a way so that they can handle a big dataset.
• Unit testing, Code review and CI/CD process and flow.
• Knowledge of GitHub - Should have worked with tools like webpack.
• Code review tools like TSlint, Jslint, React-and, Redux-forms, super-agent is added advantage. Expectation: Spends 100% of time in implementing front end for all user stories.

RESPONSIBILITIES:

• Writing and reviewing great quality code
• Understanding functional requirements thoroughly and analysing the client’s needs in the context of the project.
• Envisioning the overall solution for defined functional and non-functional requirements, and being able to define technologies, patterns, and frameworks to realize it.
• Determining and implementing design methodologies and tool sets
• Enabling application development by coordinating requirements, schedules, and activities.
• Being able to lead/support UAT and production roll outs.
• Creating, understanding, and validating WBS and estimated effort for given module/task, and being able to justify it.
• Addressing issues promptly, responding positively to setbacks and challenges with a mindset of continuous improvement
• Giving constructive feedback to the team members and setting clear expectations.
• Helping the team in troubleshooting and resolving of complex bugs
• Coming up with solutions to any issue that is raised during code/design review and being able to justify the decision taken.
• Carrying out POCs to make sure that suggested design/technologies meet the requirements.

 ​IT experience in analysis, design, development, documentation, implementing, and testing of software systems in Java, ​Spring Boot, Hibernate, and Internet technologies.

​- ​Spring Boot includes real-world experience working with ​Microservices Architecture, Plugin Services.

​- ​Strong experience in Spring Frameworks such as Spring MVC, IOC, AOP, and Spring JDBC.

​- Strong knowledge of the ​DevOps, AWS Environment, Code Versioning ​- ​Strong hands-on experience with Spring IO, Spring Boot with Thyme leaf.

​- ​Experience in implementing Java EE design patterns such as MVC, Singleton, Session Façade, DAO, DTO, and Business Delegate in the development of Multi-Tier distributed Enterprise Applications.

​- ​Good experience in developing Web Services SOAP, JAX-WS, WSDL.

​- ​Experience in core Java-Multithreading, collections, Servlets and JDBC.

​- ​​Strong knowledge on RDBMS concepts and broadly worked ​Postgres, MySQL technologies such as MongoDB

​- ​Experience in designing front-end ​technologies like ReactJS will be an add-on​

​- ​Hands-on experience with build and deployment tools including Ant / Maven, logging and Debugging using Slf4 and Log4j, and unit and integration testing using JUnit.

​- ​Experience with Use-Case design, Class, and Sequence diagrams using UML.

​- ​Excellent team player with good analytical, strategic planning, and interpersonal and communication skills. Highly motivated, enthusiastic, and self-starter.

About the Company

Our Client one of the leading TMT bar manufacturer and exporter in India. It is a well known group that achieves a turn over of 3000 Cr per annum. The group is setting a construction & architecture oriented omni channel B2B & B2C platform. 

Job Description

• MERN Full stack e-commerce developer is responsible for writing reusable, testable, and efficient code 
  
  
• Design and implementation of low-latency, high-availability, and performant applications 
  
  
• Implementation of security and data protection 
  
  
• Understanding of performance testing and optimization techniques 
  
  

Requirements

• MERN stack developer should have the ability to translate Wireframes and PSD Designs into functional web apps.
  
  
• Binding of UI elements to JavaScript object models
  
  
• Creating RESTful services with Node.js
  
  
• MERN stack developer must have proven experience in front & back-end development
  
  
• Work in a cross-functional team to deliver a complete user experience
  
  
• Reactjs Nodejs developer must know MongoDB, Express, Node.js, & React.
  
  
• Create Unit and Integration tests to ensure the quality of code
  
  
• Be responsive to change requests and feature requests
  
  
• Write code that is cross-platform and cross-device compatible
  
  
• MERN fullstack developer must have the ability to wear many hats and learn new technologies quickly
  
  
• For MERN stack developer job, candidate must have good Knowledge of Node Debugging
  
  
• Understanding & proficiency in REST APIs.
• MERN stack developer should know Git Repository and Jira.
• Integration of data storage solutions [RDBMS, NoSQL DB]

Full Stack Developers at The Seenit Co. are passionate about using technology to create an impact on the world they live in. At Seenit, you will get to collaborate with an accomplished team that loves solving real-world problems. You will get to work on cutting edge projects that will shape the next phase of growth for the global luxury industry.

Seenit’s suite of products enables the leading luxury retailers around the world to transform their customer experience and build loyal relationships with their customers. The apps allow retailers to make use of their existing infrastructure and resources to deliver a truly omnichannel experience in today's rapidly changing world of shopping.

We would welcome someone to the team who:

• Loves to write “clean”, well designed code to solve complex problems
• Can design, develop and test the core product software and databases to ensure strong optimization and functionality
• Is inclined to contribute in all phases of the development lifecycle and takes end to end ownership of the project
• Follows best industry practices
• Is excited to support others to succeed and shine in a collaborative team culture

• 1+ years of experience in developing web based applications
• Good knowledge of NoSQL databases, and query optimisations
• Experience with MongoDB, Express JS, React JS, Node JS
• Ability to pay attention to UI detail and develop amazing, non-standard user experiences
• Exposure to TypeScript will be plus