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Multithreading Jobs in Kolkata

11+ Multithreading Jobs in Kolkata | Multithreading Job openings in Kolkata

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Mihup Communications Private Limited
Remote, Kolkata
3 - 5 yrs
₹12L - ₹24L / yr
skill iconJava
J2EE
skill iconSpring Boot
Hibernate (Java)
AWS CloudFormation
+5 more
Responsibilities (what the job involves)
• Architect, develop and maintain highly scalable, reliable and secure distributed backend
systems on Cloud (AWS or Azure) or on-premises environments for Mihup, its customers
and partners.
• Work closely with your fellow engineers to develop systems capable of concurrently
processing massive amounts of voice data both in online real-time as well as offline
environments.
• Drive accountability for test driven development, delivery of high-quality features and
resilient enterprise class solutions.
• Lead a culture of team ownership and direct individual and team accountability to
continuously improve how they work to achieve results.
• Work in a startup environment, pushing boundaries with deep involvement with business.
Requirements (what we are looking for)
The right person is better than the right set of experiences and these are the traits we’ve
identified make great additions to our team.
• BE//BTech/ME/MTech in Computer Science or a related field from a Tier I or Tier II
University.
• 6-8 years of hands-on software development and deployment experience (experience of
working in a consumer product startup during its growth phase will be a plus) of which 1
– 2 years of experience would be in leading a team of software developers.
• Expertise in Java 8+ and Spring Boot is a must
• Good experience in messaging platforms like RabbitMQ/Kafka
• Good experience in distributed systems and relational & NoSQL databases like
PostgreSQL, MySQL, Redis, MongoDB, etc.
• Expertise in one or more of: Java, NodeJS, GoLang, Python would be preferred
• Must have hands on experience in products which handle multiple concurrent calls (API),
handle CPU intensive jobs, consist of multiple asynchronous system calls.
• Worked on microservices based architecture and design
• Managed/ Owned infrastructure on AWS/Microsoft Azure/private clouds and setup high
availability systems
• Knowledge of Docker and Kubernetes
• Knowledge of RESTful APIs, caching concepts, the HTTP protocol and general web
architecture
Pluses
1. Anything that will let us know more about who you are that you would like to share such
as Blogs, Twitter, Medium, GitHub etc.
Read more
NeoGenCode Technologies Pvt Ltd
Akshay Patil
Posted by Akshay Patil
Bengaluru (Bangalore), Pune, Hyderabad, Chennai, Kolkata
8 - 15 yrs
₹25L - ₹45L / yr
skill iconJava
skill iconSpring Boot
Microservices
skill iconLeadership
Team leadership
+11 more

Job 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

  1. Initial Technical Screening (via platform partner)
  2. Technical Interview with Engineering Team
  3. 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.
Read more
Deqode

at Deqode

1 recruiter
Alisha Das
Posted by Alisha Das
Bengaluru (Bangalore), Delhi, Gurugram, Noida, Ghaziabad, Faridabad, Mumbai, Pune, Hyderabad, Kolkata, Indore
2 - 4 yrs
₹3L - ₹17L / yr
skill iconJava
skill iconKotlin
skill iconSpring Boot

Job Summary:

As a Java Spring Boot Developer, you will play a key role in designing, developing, and maintaining robust backend services and APIs. With 2.5+ years of experience, including knowledge in Kotlin, you will work alongside a cross-functional team to build scalable and performant systems.

Key Responsibilities:

  • Design, develop, and maintain efficient, reusable, and reliable Java and Kotlin code
  • Build and consume RESTful APIs and microservices using Spring Boot
  • Ensure the best possible performance, quality, and responsiveness of applications
  • Collaborate with product managers, QA engineers, and DevOps for end-to-end delivery
  • Troubleshoot and resolve performance bottlenecks, bugs, and technical issues
  • Participate in code reviews, knowledge sharing, and continuous improvement

Required Skills & Qualifications:

  • 2.5+ years of experience with Java and Spring Boot
  • Strong understanding of RESTful APIs, MVC, and microservices architecture
  • Experience with relational and NoSQL databases
  • Proficiency with Git and Agile/Scrum methodologies

Preferred Skills:

  • Familiarity with Docker, Kubernetes, and CI/CD tools
  • Exposure to cloud platforms such as AWS or Azure
  • Experience with unit testing and test automation frameworks


Read more
codersbrain

at codersbrain

1 recruiter
Tanuj Uppal
Posted by Tanuj Uppal
Kolkata
7 - 12 yrs
Best in industry
skill icon.NET
ASP.NET
skill iconC#
Microsoft Windows Azure
Windows Azure
+3 more

Roles and Responsibilities

  • o Highly skilled in back-end development using .NET C#
  • o Strong experience in Microsoft Azure environment
  • o Strong experience in REST API development
  • o Experienced in Microservice architecture
  • o Experienced in an agile development and project environment
  • o Experienced with Microsoft Teams, Git and GitHub
  • o Strong ability to produce technical documentation for developed solution
  • o Familiar with agile development tools like Atlassian jira favourable
  • o Familiar with Azure SQL favourable
  • o Understanding of CI/CD favourable


Read more
Robust Product based company

Robust Product based company

Agency job
via Qrata by Blessy Fernandes
Kolkata
4 - 8 yrs
₹10L - ₹24L / yr
skill iconJava
skill iconSpring Boot
Responsibilities (what the job involves)
 Architect, develop and maintain highly scalable, reliable and secure distributed backend
systems on Cloud (AWS or Azure) or on-premises environments for  its customers
and partners.
 Work closely with your fellow engineers to develop systems capable of concurrently
processing massive amounts of voice data both in online real-time as well as offline
environments.
 Drive accountability for test driven development, delivery of high-quality features and
resilient enterprise class solutions.
 Lead a culture of team ownership and direct individual and team accountability to
continuously improve how they work to achieve results.
 Work in a startup environment, pushing boundaries with deep involvement with business.
Requirements (what we are looking for)
The right person is better than the right set of experiences and these are the traits we’ve
identified make great additions to our team.
 BE//BTech/ME/MTech in Computer Science or a related field from a Tier I or Tier II
University.
 6-8 years of hands-on software development and deployment experience (experience of
working in a consumer product startup during its growth phase will be a plus) of which 1 – 2
years of experience would be in leading a team of software developers.
 Expertise in Java 8+ and Spring Boot is a must
 Good experience in messaging platforms like RabbitMQ/Kafka
 Good experience in distributed systems and relational & NoSQL databases like PostgreSQL,
MySQL, Redis, MongoDB, etc.
 Expertise in one or more of: Python, NodeJS, GoLang would be preferred
 Must have hands on experience in products which handle multiple concurrent calls (API),
handle CPU intensive jobs, consist of multiple asynchronous system calls.
 Worked on microservices based architecture and design
 Managed/ Owned infrastructure on AWS/Microsoft Azure/private clouds and setup high
availability systems
 Knowledge of Docker and Kubernetes
 Knowledge of RESTful APIs, caching concepts, the HTTP protocol and general web
architecture
Read more
Fintech leader on global transaction in banking

Fintech leader on global transaction in banking

Agency job
via The Hub by Sridevi Viswanathan
Kolkata, Mumbai, Hyderabad, Pune
2 - 8 yrs
₹9L - ₹15L / yr
skill iconJava
skill iconSpring Boot
RESTful APIs

Key Responsibilities:

  • Development of a Single Page Application (SPA) and it's components in Typescript: deployed and optimized for progressive mobile and browsers using Angular 2 and Ionic 2 frameworks.
  • Creating custom, general use modules and smart components which extend the elements and modules of core Angular framework.
  • Creating self-contained, reusable, and testable modules and components in Typescript and using responsive HTML and CSS.
  • Architecting and automating the build process for production, using task runners or scripts.
  • Writing non-blocking code, and resorting to advanced techniques such as multi-threading, when needed

Skills and Qualifications:

  • Should have experience with CSS 3, SCSS, Java script and HTML5.
  • Full-time knowledge of Angular practices and commonly used modules based on extensive work experience. Or 2 Year or more experience with other industry-leading frameworks like React.
  • Minimum 1-year experience in working and extending one of the CSS or UI frameworks like Ng-lightening, Angular-material

Education:

  • BE / BTech / MCA
Read more
India's leading fintech brand

India's leading fintech brand

Agency job
via The Hub by Sridevi Viswanathan
Remote, Bengaluru (Bangalore), Chennai, NCR (Delhi | Gurgaon | Noida), Mumbai, Pune, Kolkata, Hyderabad
3 - 5 yrs
₹10L - ₹30L / yr
skill iconJava
Data Structures
skill iconSpring Boot

Software Engineer

Opportunity in this role / Why should you join us?

- You are your own master.  We don't preach you, we just allow you to Innovate, Iterate, Learn and Adapt

- Work with one of India's leading fintech unicorn company

- ESOPs in the company

Requirements

  • 3+ years and above exposure in the art of writing codes and solving problems for large scale
  • Extensive and expert programming experience in any one programming language (strong OOPS skills preferred). Deep experience in a java programming language
  • A solid foundation in computer science, with strong competencies in data structures, algorithms, and software design.
  • Have a penchant for solving complex and interesting problems.
  • BE/BTech, MTech in Computer Science or related technical discipline (or equivalent).
  • Excellent coding skills – should be able to convert the design into code fluently Good skills to write unit & integration tests with reasonable coverage of code & interfaces - TDD is a plus
  • Experience in building highly scalable business applications, which involve implementing large complex business flows and dealing with the huge amount of data. Experience with

multi-threading and concurrency programming

  • Ability to switch between the technologies and learn new skills on the go.

 

Roles and Responsibilities

  • Drive discussions to create/improve the product, process and technology
  • Build abstractions and contracts with separation of concerns for a larger scope
  • Rapid prototyping
  • Robust and scalable web-based applications
  • Do high-level design with guidance; Functional modelling, break-down of a module
  • Thinking platforms & reuse, the open-source contribution will be a plus
  • Do incremental changes to architecture: impact analysis of the same
  • Do performance tuning and improvements in large scale distributed systems
  • Mentor young minds and foster team spirit.
Read more
Nagarro Software

at Nagarro Software

1 video
12 recruiters
Nitika Kalra
Posted by Nitika Kalra
Remote, Mumbai, Delhi, Gurugram, Noida, Hyderabad, Chennai, Kolkata, Bengaluru (Bangalore), Pune
4 - 7 yrs
Best in industry
skill iconNodeJS (Node.js)
skill iconJavascript
es6
MySQL
RabbitMQ
+2 more

👋🏼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: 4.1-7 years
  • Must have Skills: JavaScript ES6, MySQL, RabbitMQ, Redis, Node JS
  • Strong technical background with node.js, event loop understanding, unit testing, developing web application & APIs, event & stream, call-back & closures, promise, async/await, accessing file system, Optimization techniques.
  • Strong experience in JavaScript, Express.js, GraphQL
  • Strong knowledge of REST, microservices, cloud development and design patterns
  • Comfortable using modern tools and platforms such as Docker, Jenkins, Gitlab CI, etc.
  • Comfortable using agile methodologies.
  • Understanding of different components such as web server, storages, integrations
  • Should have worked on designing and building server-side solutions (in any technology), build process of node.js, CI/CD process of node.js, multi-tasking (working on multiple things at same time)
  • Good knowledge of functional and Object-Oriented Programming
  • Implementing effective security protocols, data protection measures, and storage solutions.
  • Running diagnostic tests, repairing defects, and providing technical support.
  • Recommending and implementing improvements to processes and technologies.
  • Keeping informed of advancements in the field of Node.js development.
  • Familiarity with Azure pipeline
  • Should have experience in Identifying software application weaknesses and target areas and sketching out ideas for automated software test procedures. Reviewing software bug reports and highlighting problem areas.
  • Knowledge of high-quality professional software engineering practices for agile software development cycle, including coding standards, code reviews, source control management, build processes, testing, and deployment.
  • Fundamental knowledge of design patterns
  • Experience in communicating effectively with users, other technical teams, and management to collect requirements, describe software product features, and technical designs.
  • Mentoring the team members to meet the client's needs and holding them accountable for high standards of delivery.
  • Being able to understand and relate technology integration scenarios and be able to apply these learnings in complex troubleshooting scenarios.


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.
Read more
Nagarro Software

at Nagarro Software

1 video
12 recruiters
Nitika Kalra
Posted by Nitika Kalra
Remote, Mumbai, Delhi, Gurugram, Noida, Hyderabad, Chennai, Kolkata, Bengaluru (Bangalore), Pune
4 - 7 yrs
Best in industry
skill iconAmazon Web Services (AWS)
skill iconNodeJS (Node.js)
Microservices

👋🏼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:

  • Must have Skills: Node JS, Microservices architecture (MSA) (Capable),Javascript/Typescript, AWS S3/ LAMBDA/ EC2/DYNAMODB
  • Cloud developer with a minimum of 6 years of experience Technical skills in most of the following areas
  • Expert in developing REST Services and APIS using JavaScript, TypeScript NodeJS is a must 
  • Implementing Serverless Software development using Amazon Lambda written in NodeJS is desirable.
  • Services including AWS IoT, S3, RDS, IAM, Cognito, SNS, VPC, EBS, AWS Route 53, and Cloud Watch is a must
  • Proficient in database concepts including schema design, querying, performance tuning, and debugging (Both SQL and No-SQL databases)
  • Strong experience in designing and developing enterprise cloud-based IoT solutions using AWS
  • Develop Web, APIs, IoT & Cloud based solutions is a must
  • Ability to write automated unit test cases using mocking frameworks (Jasmine, Mocha, chai, Jest, etc.)
  • Experience in modern data architectures (e.g. Micro Service, event-driven architectures, stream processing, and integrating real-time analytics into customer applications is desirable
  • Have a good eye for NFRs (Scalability, extensibility, reliability, etc.) while evaluating design. should be able to Converts Solution Requirements into logical systems & subsystems
  • Innovates and creates new ideas and have the ability to develop quick proof of concepts and validate with the customer.


RESPONSIBILITIES:

  • 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
  • Carrying out POCs to make sure that suggested design/technologies meet the requirements.
Read more
Remote, Kolkata
5 - 9 yrs
₹8L - ₹12L / yr
skill iconJava
skill iconSpring Boot
MySQL
Channelplay, a product-based company headquartered in Gurgaon India, is servicing clients all across the globe to help them improve their retail execution and sales activities. With that vision, we have developed multiple SaaS products which are being used globally by numerous clients across different industries with 40,000+ end users. All these products are rich in cloud, mobility and advanced analytics.

The product business has witnessed tremendous growth in last few years with a client base in almost all industries and a footprint across continents. A large credit for the same goes to our young, agile and highly talented engineering team which is continuously adding new features and driving innovations in terms of adopting latest technology best practices and making the product more scalable and stable.

In order to meet the expectations of our rapidly growing client base, we are looking for experienced geeks who will be part of the current product engineering team and help in making the products more scalable by implementing most advanced technologies. We are looking for people with keen interest and demonstrated expertise in Java development, clear focus on working in a product setup, and willingness to work in a start-up environment. With strong entrepreneurial culture at Channelplay and focus on performance-based growth, in terms of financials and career, it's a great opportunity for high performers.

For more details, you can also visit our website on: http://www.channelplay.in/

What's there for you :

- Competitive remuneration
- Quarterly incentive
- Great culture with friendly work environment
- Opportunity to work in AWS Technologies
- Opportunity to get AWS Certified.

Required Skills :

- Core Java (Mandatory)
- Spring boot (Mandatory)
- My SQL (Mandatory)
- Angular (Preferred)
- AWS Technology (Preferred)
- NoSQL - MongoDB (Preferred)
- Open sources - Redis/ Memcached/ RabbitMQ/ Kafka/ ELK (Preferred)
- Git (Preferred).

Roles & Responsibilities :

- Developing software solutions by studying information needs; conferring with users; studying systems flow, data usage, and work processes; investigating problem areas; following the software development lifecycle.

- Determining operational feasibility by evaluating analysis, problem definition, requirements, solution development, and proposed solutions.

- Improving effectiveness and efficiency of the existing solutions by conducting systems analysis and recommending changes.

- Learning new and advanced technologies proactively and leading initiatives to implement those technologies in a collaborative manner.

- Acquiring new skills by studying state-of-the-art development tools and programming techniques, and sharing the knowledge with the team.
Read more
StyloPAY

at StyloPAY

4 recruiters
Shashikant Kumar
Posted by Shashikant Kumar
Kolkata
0 - 1 yrs
₹1.2L - ₹2.4L / yr
skill iconJava
J2EE
Struts
Spring
Hibernate (Java)
+5 more
Core Java, J2EE, Core Spring Framework and Spring boot skills
Knowledge of REST API, XML and RESTFUL web services
Working knowledge on SQL, JQuery, web services, Eclipse IDE would be a plus
Read more
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