11+ WebSocket Jobs in Kolkata | WebSocket Job openings in Kolkata
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Go Programming (Golang)
NodeJS (Node.js)
JavascriptJob Title: Golang Developer
Location: Kolkata
Job Type: Full-time
Working Days: 5 Days (Rotational off)
About the Role:
We are seeking a skilled Golang Developer with experience in Golang, Node.js, WebSocket
communication, and API development. In this role, you will work closely with our development
team to design, develop, and maintain high-performance backend systems and real-time
applications.
Key Responsibilities:
Design, build, and maintain efficient, reusable, and reliable Golang code.
Develop scalable APIs and microservices.
Integrate and build real-time communication using WebSocket protocols.
Collaborate with frontend developers and other team members to establish objectives
and design more functional, cohesive systems.
Write clean, maintainable, and well-documented code.
Optimize applications for maximum performance, scalability, and security.
Participate in code reviews, contribute to team knowledge, and continuously improve
development processes.
Troubleshoot, debug, and upgrade existing systems.
Occasionally work with Node.js services and modules when needed.
Required Skills and Qualifications:
Min 3+ years of experience in backend development with Golang.
Solid understanding of Node.js and JavaScript/TypeScript.
Hands-on experience with WebSocket integration and real-time applications.
Strong knowledge of RESTful APIs, API design principles, and API documentation. Experience with relational and NoSQL databases (e.g., MySQL, PostgreSQL, MongoDB).
Good understanding of concurrent programming and microservices architecture.
Familiarity with cloud platforms (AWS, GCP, Azure) is a plus.
Knowledge of containerization tools like Docker and Kubernetes is a plus.
Strong problem-solving skills, attention to detail, and a proactive attitude.
.NET
Vue.jsJob Position: Lead II - Software Engineering
Domain: Information technology (IT)
Location: India - Thiruvananthapuram
Salary: Best in Industry
Job Positions: 1
Experience: 8 - 12 Years
Skills: .Net, Sql Azure, Rest Api, Vue.Js
Notice Period: Immediate – 30 Days
Job Summary:
We are looking for a highly skilled Senior .NET Developer with a minimum of 7 years of experience across the full software development lifecycle, including post-live support. The ideal candidate will have a strong background in .NET backend API development, Agile methodologies, and Cloud infrastructure (preferably Azure). You will play a key role in solution design, development, DevOps pipeline enhancement, and mentoring junior engineers.
Key Responsibilities:
- Design, develop, and maintain scalable and secure .NET backend APIs.
- Collaborate with product owners and stakeholders to understand requirements and translate them into technical solutions.
- Lead and contribute to Agile software delivery processes (Scrum, Kanban).
- Develop and improve CI/CD pipelines and support release cadence targets, using Infrastructure as Code tools (e.g., Terraform).
- Provide post-live support, troubleshooting, and issue resolution as part of full lifecycle responsibilities.
- Implement unit and integration testing to ensure code quality and system stability.
- Work closely with DevOps and cloud engineering teams to manage deployments on Azure (Web Apps, Container Apps, Functions, SQL).
- Contribute to front-end components when necessary, leveraging HTML, CSS, and JavaScript UI frameworks.
- Mentor and coach engineers within a co-located or distributed team environment.
- Maintain best practices in code versioning, testing, and documentation.
Mandatory Skills:
- 7+ years of .NET development experience, including API design and development
- Strong experience with Azure Cloud services, including:
- Web/Container Apps
- Azure Functions
- Azure SQL Server
- Solid understanding of Agile development methodologies (Scrum/Kanban)
- Experience in CI/CD pipeline design and implementation
- Proficient in Infrastructure as Code (IaC) – preferably Terraform
- Strong knowledge of RESTful services and JSON-based APIs
- Experience with unit and integration testing techniques
- Source control using Git
- Strong understanding of HTML, CSS, and cross-browser compatibility
Good-to-Have Skills:
- Experience with Kubernetes and Docker
- Knowledge of JavaScript UI frameworks, ideally Vue.js
- Familiarity with JIRA and Agile project tracking tools
- Exposure to Database as a Service (DBaaS) and Platform as a Service (PaaS) concepts
- Experience mentoring or coaching junior developers
- Strong problem-solving and communication skills
Java
Spring Boot
LeadershipJob Title : Lead Java Developer (Backend)
Experience Required : 8 to 15 Years
Open Positions : 5
Location : Any major metro city (Bengaluru, Pune, Chennai, Kolkata, Hyderabad)
Work Mode : Open to Remote / Hybrid / Onsite
Notice Period : Immediate Joiner/30 Days or Less
About the Role :
- We are looking for experienced Lead Java Developers who bring not only strong backend development skills but also a product-oriented mindset and leadership capability.
- This is an opportunity to be part of high-impact digital transformation initiatives that go beyond writing code—you’ll help shape future-ready platforms and drive meaningful change.
- This role is embedded within a forward-thinking digital engineering team that thrives on co-innovation, lean delivery, and end-to-end ownership of platforms and products.
Key Responsibilities :
- Design, develop, and implement scalable backend systems using Java and Spring Boot.
- Collaborate with product managers, designers, and engineers to build intuitive and reliable digital products.
- Advocate and implement engineering best practices : SOLID principles, OOP, clean code, CI/CD, TDD/BDD.
- Lead Agile-based development cycles with a focus on speed, quality, and customer outcomes.
- Guide and mentor team members, fostering technical excellence and ownership.
- Utilize cloud platforms and DevOps tools to ensure performance and reliability of applications.
What We’re Looking For :
- Proven experience in Java backend development (Spring Boot, Microservices).
- 8+ Years of hands-on engineering experience with at least 2+ years in a Lead role.
- Familiarity with cloud platforms such as AWS, Azure, or GCP.
- Good understanding of containerization and orchestration tools like Docker and Kubernetes.
- Exposure to DevOps and Infrastructure as Code practices.
- Strong problem-solving skills and the ability to design solutions from first principles.
- Prior experience in product-based or startup environments is a big plus.
Ideal Candidate Profile :
- A tech enthusiast with a passion for clean code and scalable architecture.
- Someone who thrives in collaborative, transparent, and feedback-driven environments.
- A leader who takes ownership beyond individual deliverables to drive overall team and project success.
Interview Process
- Initial Technical Screening (via platform partner)
- Technical Interview with Engineering Team
- Client-facing Final Round
Additional Info :
- Targeting profiles from product/startup backgrounds.
- Strong preference for candidates with under 1 month of notice period.
- Interviews will be fast-tracked for qualified profiles.
JavaKnowledge of REST API, XML and RESTFUL web services
Working knowledge on SQL, JQuery, web services, Eclipse IDE would be a plus
NodeJS (Node.js)
MongoDB
ExpressJavascriptJob Description :
● Should have a strong knowledge of Node JS, Javascript.
● Proven Skills with databases like PostGres/MongoDB etc.
● Experience in Version Control Systems like GIT, Bitbucket.
● Ability to complete all phases of software development life cycle.
● Should have a working knowledge of using the latest development tools and techniques.
● Experience in Cloud such as AWS, Azure etc. is an advantage
● Basic knowledge of front-end UI design preferred.
● Must have good problem solving and analytical skills.
● Must be a team player, having good communication skills, self-starter
● Ability to pick up new technology is needed
Ideal Candidates will:
● Possess Strong sense of ownership
● Have an ability to work in high energy teams and drive results
● Have Good communication and documentation skills
● Enjoy sharing knowledge and eager to keep developing themselves
Spring BootJavaWe are looking for a Senior Java Developer with 6+ years of experience to join our team. The ideal candidate should have strong expertise in Java, Spring Boot, Microservices, and Cloud Technologies. You will play a key role in designing, developing, and optimizing scalable applications while mentoring junior developers and ensuring best coding practices.
Key Responsibilities:
- Design, develop, and maintain Java-based enterprise applications.
- Implement and optimize Microservices Architecture using Spring Boot.
- Develop, test, and deploy RESTful APIs and Web Services.
- Work with SQL and NoSQL databases (MySQL, PostgreSQL, MongoDB, etc.).
- Ensure application scalability, security, and performance.
- Collaborate with DevOps teams for CI/CD pipeline integration.
- Work with Cloud platforms (AWS, Azure, or GCP) for cloud-native development.
- Implement best practices for coding, testing, and deployment.
- Lead code reviews, mentor junior developers, and contribute to architectural decisions.
- Troubleshoot production issues and provide effective solutions.
Required Skills & Experience:
- 6+ years of hands-on experience in Java development.
- Strong expertise in Spring Boot, Spring MVC, and Spring Security.
- Experience with Microservices Architecture and containerization tools like Docker/Kubernetes.
- Proficiency in SQL & NoSQL databases (MySQL, PostgreSQL, MongoDB, Redis).
- Hands-on experience with RESTful APIs, messaging systems (Kafka, RabbitMQ), and authentication mechanisms (OAuth, JWT, SAML).
- Familiarity with CI/CD tools (Jenkins, GitHub Actions, GitLab CI/CD).
- Experience in Agile/Scrum development methodologies.
- Strong knowledge of multi-threading, concurrency, and design patterns.
PHP
Laravel
CodeIgniterJavascript1. Custom PHP development,
2. One framework like larval or CI
3. Solid Javascript & Jquery
4. Wordpress Plugin development
5. Custom Theme development
6. Advance Woocommerce knowledge
7. Elementor, Divi Page builder working experience
PHPCodeIgniterLaravelFreshers without sound knowledge on the above please do not apply.
NodeJS (Node.js)MongoDBExpress
About the Company
Our client is 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
Experience : 3-5Years
Requirement
- 3+ years of backend/full-stack development experience
- Proficient knowledge of a back-end programming language i.e Node.Js
- Experience with AWS services,Mongo DB
- Experience with RabbitMQ or similar queuing system
- Experience with Redis/ElasticSearch/PHP is a plus
- Familiarity with CI/CD pipeline tools like Jenkins
- Experience in handling a team
- Good at Design patterns, Algorithms, and Data structures.
- Have outstanding leadership skills, excellent people/communication, and negotiation skills
- Good knowledge of working with Git
- User authentication and authorization between multiple systems, servers, and
environments.
- Integration of multiple data sources and databases into one system
Management of the hosting environment, including database administration
and scaling an application to support load changes
.
Regards
Team Merito
NodeJS (Node.js)MongoDB
Amazon Web Services (AWS)- Design and develop highly scalable, reliable and fault-tolerant systems for one of India's fastest-growing product startup
- Translate business requirements into scalable and extensible design.
- Pair with team members on functional and non-functional requirements and spread design philosophy and goals across the team.
- Partner with the product management team to define and execute the feature roadmap.
- Coordinate with cross-functional teams (Mobile, DevOps, Data, UX, QA, etc.) on planning and execution.
- Continuously improve code quality, product execution, and customer delight.
- Proactively manage stakeholder communication related to deliverables, risks, charges, and dependencies.
- Communicate, collaborate and work effectively across distributed teams
- An innate desire to deliver and a strong sense of accountability for your work.
- Willingness to learn new languages and methodologies.
- Passion for learning new things, solving challenging problems.
Requirements:
- 3+ years of experience in software development or a serious open source track record
- 2+ years of hands-on experience in designing, developing, testing and deploying large scale applications in any language or stack
- Proficiency in OOP concepts, including design patterns. Experience with functional programming is a plus.
- Data modelling experience in both Relational and NoSQL databases.
- Ability to understand and implement Continuous Integration and Continuous Delivery.
- Well versed with Lean methodologies, and Test Engineering and Automation.- Ability to design and implement low latency RESTful services.
- Experience in troubleshooting server performance memory issues, GC tuning, resource leaks, etc.
- Continuously refactor applications and architectures to maintain high-quality levels.
- Ability to scope, review and refine user stories for technical completeness and to alleviate dependency risks.
- We primarily use Node JS, MongoDB, AngularJS & AWS
**About VComply :**
- VComply is a fast-growing SaaS GRC (Governance, Risk and Compliance) platform that helps organizations manage their compliance controls and risk in an intuitive manner. VComply brings a contextual understanding of GRC to compliance officers enabling them to achieve organization objectives while maintaining the integrity and managing risk.
- VComply was founded in 2019 and is backed by Accel. We already have 25+ marquee customers across North America and Australia & New Zealand in our short existence. We provide organizations with configurable, yet plug and play GRC applications that need zero development effort and infrastructure.
**Why VComply :**
- Opportunity to have direct impact on the growth of a fast growing & dynamic company
- Challenging work environment with End- to-end ownership of your role
- Incredible growth opportunities - we are a meritocracy, and the best will always have room for growth in the company
- Opportunity to work directly with senior leadership
- Accelerated learning environment with a high performing team surrounding you
- Culture that promotes challenging oneself & continuous improvement.
- Perks & Employee friendly policies.
LaravelJavascript
HTML/CSS
GitOur client is a decade-old software development company, that offers its clients a wide range of customized web, mobile, and eCommerce tools and software. They are known to use advanced languages and platforms used to build reliable, secure, and scalable solutions for their business clients as well as individual customers. Their disruptive craftsmanship and strategy help in high-performance growth and allows customers to transform digitally and competitively.
Their products are being used by most of the banks and NBFCs in India, apart from clients from other industries. The founder is an IIM and MDI alumni and has experience of more than 13 years in business and strategic roles in MNCs. The company has been accredited by the government as a premier IT company, committed to quality and driven by customer success.
- Understanding and implementing security and data protection
- Managing both front-end and back-end web development requirements from a consumer.
- Taking full responsibility for task/ project execution
- Handling Payment Gateway integration and ecommerce development concepts
- Prioritizing own work and respect deadlines
What you need to have:
- Excellent skills in PHP Laravel
- Strong object-oriented programming skills
- General knowledge of both front-end and back-end web development from a consumer.
- Databases (more than one is desirable) MySQL, PostGRE, MongoDB
- Experience in Payment Gateway integration and ecommerce development concepts
- Should know about child theme and its structure.
- Proficient in CSS3/ HTML5
- Should know about source version control like git or svn etc.
- Familiar with AWS & Linux command line will be added advantage.
- Must be a team player with good communications
- Ability to solve problems quickly and efficiently
- Great aptitude and attitude towards learning
- Ability to prioritize own work and respect deadlines
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