11+ WebSocket Jobs in Kolkata | WebSocket Job openings in Kolkata
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📢 Hiring for React JS Developer
📍 Location: Newtown, Kolkata
🕘 Shift: Day Shift | 🗓️ Working Days: 5 Days a Week (Roster Off)
💰 Salary: Up to ₹50,000/month
Are you a passionate React JS Developer with at least 3 years of experience? We want you to be part of our growing tech team!
✅ Required Skills:
- Strong proficiency in React JS
- Knowledge of C++
- Experience with WebSocket
- Hands-on with Redux and ES6
💼 Perks:
- Salary on the 1st of every month.
- 24 paid leaves in a year
- 15 comp offs
- Birthday leave (if choose to work double pay)
- Career Growth Opportunities
👉 Apply now and build something amazing with us!
Tag someone who might be a great fit!



Job Title: .NET Developer
Location: Pan India (Hybrid)
Employment Type: Full-Time
Join Date: Immediate / Within 15 Days
Experience: 4+ Years
Deqode is looking for a skilled and passionate Senior .NET Developer to join our growing tech team. The ideal candidate is an expert in building scalable web applications and has hands-on experience with cloud platforms and modern front-end technologies.
Key Responsibilities:
- Design, develop, and maintain scalable web applications using .NET Core.
- Work on RESTful APIs and integrate third-party services.
- Collaborate with UI/UX designers and front-end developers using Angular or React.
- Deploy, monitor, and maintain applications on AWS or Azure.
- Participate in code reviews, technical discussions, and architecture planning.
- Write clean, well-structured, and testable code following best practices.
Must-Have Skills:
- 4+ years of experience in software development using .NET Core.
- Proficiency with Angular or React for front-end development.
- Strong working knowledge of AWS or Microsoft Azure.
- Experience with SQL/NoSQL databases.
- Excellent communication and team collaboration skills.
Education:
- Bachelor’s/Master’s degree in Computer Science, Information Technology, or a related field.

Key Responsibilities
- Develop front-end applications using React JS
- Design and implement back-end services using Node JS
- Collaborate with cross-functional teams to deliver projects
- Troubleshoot and optimize application performance
Requirements
- Strong experience with React JS and Node JS
- Proficiency in JavaScript, HTML/CSS, and relevant frameworks
- Experience with database management (e.g., MongoDB, PostgreSQL)
- Excellent problem-solving skills and attention to detail


Job Title: Senior .NET Developer
Location: Kolkata
Job Type: Full-time
Experience: 8-15 years
Job Description:
We are seeking a highly skilled Senior .NET Developer with 8 -15 years of experience to join our team. The ideal candidate will have a strong command of .NET development and excellent communication skills to effectively collaborate with cross-functional teams and stakeholders.
Responsibilities:
- Lead the design, development, testing, and deployment of high-quality .NET applications.
- Mentor junior developers and provide technical guidance and support.
- Collaborate with project managers, business analysts, and stakeholders to gather requirements, define project scope, and contribute to system architectural design and planning discussions.
- Communicate effectively with team members, stakeholders, and clients to understand project requirements, provide updates on project progress, and participate in Code Reviews with Peers/Technical Lead.
- Stay updated with the latest technologies, trends, and developments in .NET development and implement best practices, coding standards, and design patterns to ensure robust and scalable solutions.
- Troubleshoot and debug issues to maintain the stability and performance of existing applications, identify issues, conduct root cause analysis, and recommend/implement solutions.
- Document technical specifications, system architecture, and development processes, and develop relevant documentation around the solutions.
- Estimate and develop scalable solutions using .Net technologies in a highly collaborative agile environment with strong experience in C#, ASP.net Core, Web API, Develop SP, query, and table schema in SQL Server, and perform unit, integration and system testing to ensure quality release of the product.
- Contribute to system architectural design and planning discussions.
- Take initiative and ownership to drive development projects and invest in self-development.
- 4-6 years of experience designing and developing n-tier Web applications using .Net Framework, .Net Core, ASP.Net, WCF and C#, MVC 4/5 Web Development, RESTful API Services, Web API and JSON.
- Exposure to Agile Scrum and associated framework, User Stories/product backlog, and TFS/JIRA Usage.
- Knowledge of scripting frameworks like ReactJS, and experience with source control like Git or Bitbucket is preferred.
- Proven experience with AJAX, jQuery, JavaScript, and CSS, knowledge of SOLID principles, and working experience with design principles including design patterns.
- Good exposure to one or more implementations of CI & CD using Jenkins, and Docker containerization.
- Knowledge of API development with an understanding of HTTP and REST architecture.
Eligible Criteria:
- Excellent verbal and written communication and organizational skills, keen attention to detail, and multi-tasking abilities.
· Bachelor's degree in Computer Science, Engineering, or a related field.
· 5-10 years of professional experience in .NET development.
· Extensive knowledge and experience with C#, ASP.NET, MVC, Web API, and SQL Server.
· Proficiency in Azure cloud & related environments
· Experience working in Agile methodologies and collaborative team environments.
· Excellent problem-solving skills and attention to detail.
· Ability to work independently and as part of a team, with a proactive and positive attitude.
· Familiarity with front-end technologies such as HTML5, CSS3, JavaScript, and frameworks like ReactJS is a plus.
· Certifications in .NET development or related technologies are desirable but not required.
Benefits: Salary as per Market standard, PF, Medical insurance for permanent employees.
Employment Type
Full-time


Job Description
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
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]

Job Title - Sr Software Developer
Location - Sector 5 , Salt Lake
Shift Timings - 2:15 PM to 11:30 PM
Week Off - All Sundays and Alternate Saturdays. Sat will be halfday
Job brief:
We are looking for a Senior Software Developer specializing in .Net to build software using languages and technologies of the .NET framework.You should be a pro with third-party API integration and application programming.
In this role, you should be able to write smooth & functional code with a sharp eye for spotting defects. You should be a team player and an excellent communicator. If you are also passionate about the .NET framework and software design/architecture, we’d like to meet you.
Your goal will be to work with internal teams to design, develop and maintain software.
Job Responsibilities:
• Work in a development team to develop integrated ASP.NET applications.
• Write clean, scalable code using ASP.NET Framework, programming language (C#), and Rest API.
• Write SQL Server Queries and normalize SQL table structure.
• Revise, update,refactor and debug code.
• Improve existing software
• Develop documentation throughout the software development lifecycle (SDLC)
• Serve as an expert on applications and provide technical support
Job Requirements:
• Required at least 4 years of Software development using C# .NET.
• Good Knowledge of SQL Server, and design/architectural patterns for .NET Framework Web Application)
• Good Knowledge on Bootstrap, jQuery, HTML, CSS3 and XML
• Familiarity with architecture styles/APIs (REST, Web API, Json)
• Excellent troubleshooting and communication skills
• BSc/BA in Computer Science, Engineering, or a related field
CTC, Bonuses & Rewards: -
Salescom Services Private Limited is an equal opportunity employer in the local industry.Our operations and company visions are quite a niche and heavily focused on being massively successful operations engaged in next-generation sales & marketing wins, support, and information technology-enabled services & solutions. CTC for the right employee is not pre-defined as such however will be a best-fit match to the local industry standards. Come, interview with us, figure out if we both are the right fit for each other, and the rest will follow suit.
Interested candidates are requested to apply for this job

Responsibilities and Duties
- Can work on live projects of international clients.
- Can handle multiple projects
- Error-free coding.
Requirements
- Minimum 3 Years of Experience.
- Extremely fluent in Database performance and tuning
- Knowledge in Web API
- Knowledge in Payment Gateway Integration
- Knowledge in Angular JS
- Good analytical, logic building and problem-solving skills
- Proper Reporting & Documentation
- Experience with Microsoft .NET technologies including, ASP.NET, MVC, Entity Framework
- Proven Skills with C#, SQL JavaScript/HTML, HTML-CSS, AJAX, jQuery, Web Services, etc.
- Excellent research capability.



- Architecting, Developing, testing, and deploying robust products that are fast, scalable, and highly responsive
- Designing client-side and server-side architecture
- Building the front-end of applications through appealing visual design
- Developing and managing well-functioning databases and applications
- Designing and maintaining large and complex databases, both relational and non-relational databases.
- Establishing, refining and integrating development environment tools and software as needed
- Identifying production and non-production application issues as a part of the deployment
- Deploying applications on the AWS cloud with the ability to quickly debug hosting-related issues.
- Writing effective APIs
- Testing software to ensure responsiveness and efficiency
- Troubleshooting, debugging and upgrading software
- Creating security and data protection settings
- Building features and applications with a mobile responsive design
- Writing technical documentation
- Working with data scientists and analysts to improve software
What you need to have:
- BE/ ME/ BCA/ MCA- Any Computer/ IT Degree
- Expertise in Mongo DB, Express js, React js, Node js, HTML5, CSS3, LESS/ SASS, Bootstrap.
- 3-4 years of experience in server management, Microservice, and AWS knowledge is not mandatory but will be preferable.
- Strong analytical and problem-solving skills
- Comfortable around both front-end and back-end coding languages, development frameworks, and third-party libraries.
- Be a team player with a knack for visual design and utility.
- Also familiar with Agile methodologies


We are looking for a highly skilled computer programmer who is comfortable with both front and back end programming. Full Stack Developers are responsible for developing and designing front end web architecture, ensuring the responsiveness of applications, and working alongside graphic designers for web design features, among other duties.
Full Stack Developers will be required to see out a project from conception to final product, requiring good organizational skills and attention to detail.
Full Stack Developer Responsibilities:
- Developing front end website architecture.
- Designing user interactions on web pages.
- Developing back-end website applications.
- Creating servers and databases for functionality.
- Ensuring cross-platform optimization for mobile phones.
- Ensuring responsiveness of applications.
- Working alongside graphic designers for web design features.
- Seeing through a project from conception to finished product.
- Designing and developing APIs.
- Meeting both technical and consumer needs.
- Staying abreast of developments in web applications and programming languages.
Full Stack Developer Requirements:
- BE / BTech / MCA / BCA Degree in Computer Science or equivalent.
- Strong organizational and project management skills.
- Proficiency with fundamental front-end languages such as HTML, CSS, and JavaScript.
- Familiarity with JavaScript frameworks such as Angular JS, React, Vue and Amber.
- Proficiency with server-side languages such as Node, Java, PHP, Python and Ruby.
- Familiarity with database technology such as MySQL, Oracle, and MongoDB.
- Excellent verbal communication skills.
- Good problem-solving skills.
- Attention to detail.

