

Responsibilities:
- Develop and maintain high-quality, efficient, and scalable backend applications.
- Participate in all phases of the software development lifecycle (SDLC)
- Write clean, well-documented, and testable code adhering to best practices.
- Collaborate with team members to ensure the successful delivery of projects.
- Debug and troubleshoot complex technical problems.
- Identify and implement performance optimizations.
- Participate in code reviews
- Hands-on experience with Springboot, Java 8 and above.
- 2-5 years of experience developing Java applications.
- Knowledge about at least one messaging system like Kafka, RabbitMQ etc.
- Required React developer requirements, qualifications & skills:
- Proficiency in React.js and its core principles
- Strong JavaScript, HTML5, and CSS3 skills
- Experience with popular React.js workflows (such as Redux)
- Strong understanding of object-oriented programming (OOP) principles.
- Experience with design patterns and best practices for Java development.
- Proficient in unit testing frameworks (e.g., JUnit).
- Experience with build automation tools (e.g., Maven, Gradle).
- Experience with version control systems (e.g., Git).
- Experience with one of these databases – Postgres, MongoDb, Cassandra
- Knowledge on Retail or OMS is a plus.
- Experienced in containerized deployments using Docker, Kubernetes and DevOps mindset
- Ability to reverse engineer existing/legacy and document findings on confluence.
- Create automated tests for unit, integration, regression, performance, and functional testing, to meet established expectations and acceptance criteria.

About Wissen Technology
About
The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains.
With offices in US, India, UK, Australia, Mexico, and Canada, we offer an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
Connect with the team
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We are seeking a skilled Senior Software Development Engineer (SDE-3) proficient in MERN stack technologies to join our dynamic team.
Responsibilities:
- Design, develop, and maintain scalable web applications and services using MERN stack technologies (MongoDB, Express.js, React.js, Node.js) and Nest.js.
- Implement frontend components and user interfaces using React.js and Next.js.
- Develop and integrate server-side logic using Node.js, Express.js, and Nest.js.
- Utilize MongoDB and SQL databases to manage and optimize data storage solutions.
- Implement real-time communication and event-driven architectures using technologies like Socket.io.
- Deploy applications on AWS cloud infrastructure, leveraging services such as EC2, S3, Lambda, DynamoDB, and others as required.
- Ensure code quality, performance, and adherence to best practices through code reviews and automated tests.
- Collaborate effectively with cross-functional teams including product managers, designers, and other developers.
- Stay updated with emerging technologies and industry trends to continuously improve development practices and tools.
Requirements:
- Bachelor’s degree in Computer Science, Engineering, or a related field (preferred).
- 5+ years of experience in software development with expertise in MERN stack technologies.
- Proficiency in Node.js, Next.js, React.js, Express.js, Nest.js, JavaScript, and TypeScript.
- Strong understanding of MongoDB and SQL databases, including database design and optimization.
- Experience building and deploying applications on AWS cloud infrastructure (EC2, S3, Lambda, DynamoDB).
- Familiarity with real-time web applications and event-driven architectures using technologies like Socket.io.
- Solid understanding of software development principles, design patterns, and best practices.
- Excellent problem-solving skills and ability to troubleshoot complex issues.
- Effective communication and collaboration skills, with the ability to work both independently and as part of a team in a fast-paced environment.


We are seeking an experienced Lead Full Stack Developer with a strong background in the MERN stack and serverless technologies. The ideal candidate will have a minimum of 6 years of experience in software development, with significant expertise in both relational (RDBMS) and NoSQL databases. You will lead a team in designing and developing scalable, high-quality solutions while ensuring best practices are followed throughout the development lifecycle.
Responsibilities:
- Develop and maintain scalable backend services using Node.js and serverless technologies such as AWS Lambda, Google Cloud Functions, or Azure Functions.
- Architect and implement front-end solutions using React.js, ensuring seamless integration with backend services.
- Design, implement, and optimise both relational (PostgreSQL, MySQL) and NoSQL (MongoDB) databases.
- Translate business requirements into robust, efficient technical solutions.
- Conduct code reviews to maintain high standards of code quality, performance, and maintainability.
- Stay updated with the latest trends and advancements in the MERN stack, serverless architectures, and cloud platforms.
- Lead and mentor a team of developers, providing technical guidance and fostering a collaborative environment.
Requirements:
- Minimum of 6 years of professional experience in software development, with at least 6 years specifically in the MERN stack.
- Proven leadership experience in managing and mentoring development teams.
- Proficiency in Node.js, Express.js, React.js, and MongoDB.
- Hands-on experience with serverless architectures, including AWS Lambda, Google Cloud Functions, or Azure Functions.
- Strong understanding of RDBMS (PostgreSQL, MySQL) and NoSQL databases (MongoDB).
- Solid understanding of RESTful APIs, microservices architecture, and cloud platforms.
- Excellent problem-solving, debugging, and collaboration
Additional Skills:
- Experience with GraphQL, Docker, and Kubernetes is a plus.
- Contributions to open-source projects are highly valued.
- Understanding of DevOps practices and CI/CD pipelines.

ROLE: Full Stack Developer
About the company:
CogniTensor is an analytical software company that brings data to the heart of decision-making. CogniTensor leverages its product, DeepOptics - an integrated platform to implement 3A (Automation, Analytics and AI) at scale.
Cognitensor has customers ranging in Finance, Energy, Commodity, Retail & Manufacturing. More details can be found on our website: https://www.cognitensor.com/
Our strategic investors include Shell and CIIE.CO (IIM-A/Accenture).
Qualification & Experience:
- BE/B.Tech Degree in Computer Programming, Computer Science, or a related field.
- +2 years experience as a Software Developer.
- Hands on experience in developing finance applications is must
Roles & Responsibilities:
We are looking for a Full Stack Developer to produce scalable software solutions. You’ll be part of a cross-functional team that’s responsible for the full software development life cycle, from conception to deployment.
As a Full Stack Developer, you should be comfortable around both front-end and back-end coding languages, development frameworks and third-party libraries. You should also be a team player with a knack for visual design and utility. Along with familiar with Agile methodologies and testing skills
- Work with development teams and product managers to ideate software solutions
- Design client-side and server-side architecture
- Develop and manage well-functioning databases and applications
- Write effective APIs
- Write technical documentation
- Excellent communication and teamwork skills
Technical Skills:
Must Have
- React JS
- Git / Bitbucket,
- Express JS, Python, HTML, CSS, Node JS
- CI/CD like CircleCI
- Postgres or any DB knowledge
- Familiarity with AWS or Azure or both
Good to Have
- Docker
- Redux
- Android development
- React Native
- Electron
- GraphQL
- Jira
What’s in for you:
● An opportunity to lead a business segment
● Extensive liaising with customers and partners
● A rewarding career progression
Preferred Location:
Delhi NCR



JOB DESCRIPTION
Overview - We always put our users first. We start by looking at things from the user’s perspective and end by evaluating how the solution has impacted the user. We are looking for People who are continuously adapting to new technologies and excited to work on products that influence millions of people every day. The Android and iOS mobile applications are used by millions of people around the world and are some of India’s best known and most loved applications and we’re looking for someone to lead the engineering teams that build these apps.
Role - We are looking for a highly skilled computer programmer who is comfortable with both front and back end programming. Full Stack Developer will be required to see out a project from conception to final product, requiring good organizational skills and attention to detail. You will strike a balance between the consumers’ intent and the business’s needs.
What you will do in this role
- Developing front end website architecture.
- Translate requirements and mock-ups into fully functional features by working closely with business and product owners, creative designers and back-end developers.
- Creating servers and databases for functionality.
- Review requirements, design specifications, propose solutions and implementation.
- Work with team leads on the requirements and create estimates against those requirements.
- Deliver projects on time in an agile and continuous development environment.
- Writing tests in a client-side test framework such as Jest, Jasmine, etc.
- Designing and developing APIs.
- Monitor systems to ensure they meet both user needs and business goal.
What you should have
- 2-5 years of hands-on experience in software development and system administration.
- Experience in Micro services, Serverless applications, Container-based applications.
- Strong Experience on AWS cloud (Lambda, S3, Kinesis, SQS, SNS, ECS, Dynamo DB).
- Good understanding of Devops, Apache Kafka.
- Familiarity with JavaScript frameworks such as ReactJS.
- Proficiency with server side languages such as NodeJS, Python and PHP.
- Familiarity with database technology such as MySQL, Mongo DB and Dynamo DB.
- Familiarity with Logging & Monitoring tools like Kibana, NewRelic, DataDog
- Proficiency with fundamental front end languages such as HTML, CSS and JavaScript.
- Experience with unit testing & Test Driven Development (TDD) and CI/CD.
- BE (Comp/IT), ME (Comp/IT), MCA, M.Tech, B.Tech.

Technical
- Own and Lead solution architecture of engineering solutions from product conception to launch involving a variety of technologies including but not limited to Core Java, Hibernate, Spring, AWS, MySQL, Oracle, No-SQL, Angular, Bootstrap, Apache CXF, Apache Lucene, Web Services (REST AND SOAP), AJAX, Dimension modeling, machine learning, data analytics etc. and ensure that the implemented solutions align with and support business strategies and requirements.
-
Perform Technical feasibility; drive shaping up the product through its life cycle to ensure scalability, performance, security & compliance standards.
-
Drive technical issues to closure with problem solving skills and ready to do hands on work.
-
Collaborate with delivery, engineering, quality, support, experience, program, and
infrastructure partners to achieve goals.
-
Support new opportunities of growth and continuous improvement through lateral and
creative thinking
-
Stay updated of new technologies and of changes in technologies that affect back-end and
front-end web development
Management
-
Accountability for architecture, product excellence, decision-making, client communications,
and solution outcomes.
-
Foster, facilitate, and furnish, timely decision-making across a broad network of
stakeholders, delivery partners, and operational teams.
-
Coach and develop a team of outstanding individuals providing product engineering
development and support solutions.
-
Build strong relationships with key business stakeholders across multiple business units and
be their trusted advisor.
-
Help management establish processes and standards.
Skills & Qualifications Required:
-
**Should have scored 70% & above in 10th and 12th grade.
-
A Minimum of a Bachelor’s degree in Computer Science or related software engineering
discipline, or equivalent
-
15+ years in technical development and solution architecture for enterprise applications and
experience of working on full stack.
-
Strong self-driven individual who can lead in a fast paced complex environment,
demonstrate problem solving skills in varied situations and take decisions taking all
stakeholders along.
-
Thought leadership, curiosity of business and engineering processes and drive to keep in
pace with the new and emerging trends, technologies and innovations.
-
Ability to manage partnerships with all areas and members of the business as well as all
levels of the organization.
-
Excellent spoken and written communication with the ability to present complex ideas in a
clear, concise fashion to technical and non-technical audiences.
-
Ability to lead from the front, willingness to be hands-on to get down and work with team to
understand and resolve problems.
Good to have:
-
Experience building or managing distributed systems.
-
Knowledge of data analytics and machine learning.
-
Experience in the Fintech domain.
-
Experience with Agile/Scrum development methodologies


Founded in 2000 by serial entrepreneurs who hailed from IIT Delhi. We are India’s one of the leading certification training providers, also awarded the ' Most Innovative Indian IT Company’ award by NASSCOM in 2004 . We are one of the first in the industry to launch online training for various technologies.
Job Description
We are looking for a fullstack developer who is proficient with React.js and nodejs. Your primary focus will be on developing user interface components, RESTful APIs and implementing them following well-known React.js workflows (such as Flux or Redux) and nodejs. You will ensure that these components and the overall application are robust and easy to maintain. You will coordinate with the rest of the team working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product is important.
Responsibilities
Developing new user-facing features using React.js
Developing lambda services using nodejs
Building reusable components and front-end libraries for future use
Translating designs and wireframes into high quality code
Optimizing components for maximum performance across a vast array of web-
capable devices and browsers
Skills
Strong proficiency in JavaScript, including DOM manipulation and the JavaScript
object model
Thorough understanding of React.js and nodeJs and their core principles
Experience with popular React.js workflows (such as Flux or Redux)
Familiarity with newer specifications of ECMAScript
Experience with data structure libraries (e.g., Immutable.js)
Knowledge of isomorphic React is a plus
Familiarity with RESTful APIs
Knowledge of modern authorization mechanisms, such as JSON Web Token
Familiarity with modern front-end build pipelines and tools
Experience with common front-end development tools such as Babel, Webpack,
NPM, etc.
Ability to understand business requirements and translate them into technical
requirements
A knack for benchmarking and optimization
Familiarity with code versioning tools such as Git, SVN and CodeCommit
Bachelor's degree in Computer Science, Software Engineering or related field
Any cloud certification such as AWS Certified Developer would be a plus


We have opening position for Java Fullstack Developer
Role: Java FullStack Developers
Experience: 7-12 Years
Location: Pan India Remote working -full time
Please find the JD below.
- 7+ years of strong Java & J2EE working experience
- 5+ years’ experience with web 2.0 technologies including use of OO JavaScript, Ajax, JS libraries (e.g. Ext Js/jQuery/DOJO/ etc.) Bootstrap, Angular or React, HTML 5, CSS, JSON, and strong understanding of browser compatibility issues.
- Micro services development build and deployment experience with CICD build pipeline.
- 3+ years’ experience with frameworks like spring, hibernate, jpa and databases like Oracle, PostgreSQL and NoSQL
- Experience using Agile software development methodologies.
- Shows interest around Quality and QA process.
- Excellent verbal and written communication skills in English.
- Ability to effectively document artifacts and processes, then explain them to others.
- Knowledge of OOAD principles and methodologies (e.g. UML).
- Experience using GIT and issue tracking tools such as JIRA.
- Cloud-based applications leveraging AWS.
- Working experience in AEM 6.0+ implementation is desirable.
- Experience working with geographically distributed teams is a plus
- Exposure to developing multi-tier, scalable, and browser-based applications.
- Ability to deal well with complex use cases and ambiguous problems.
- Proactive and ability to learn quickly.
- Experience to lead and mentor other developers



A highly motivated and passionate individual who has experience in executing end to end web based application projects and bringing them to production quickly and with high quality. Passionate about building flexible and scalable solutions with an eye for detail and can weigh pros and cons to find best possible solutions.
Responsibilities:
- Collaborate with Product Manager and Engineering Manager to plan, implement and deliver tasks and modules on a timely basis with best practices and adherence to SOPs.
- Understand the product specification and be able to ask questions and gather information and feedback to build a well rounded solution.
- Deliver end to end applications starting from front end web development, back end development, middleware integration and persisting data in no SQL or RDBMS databases.
- Should be able to use existing front-end components to build web based UI interfaces.
- Strong technical design approach to problem solving for backend services.
- Should be able to communicate and defend the tech design choices taken for long term scalability and maintainability.
- Play the role of an unblocker in a tight scrum environment.
- Should be able to help other developers with challenges and help achieve milestones as per plan.
- Prioritise to manage ad-hoc requests in parallel with ongoing projects.
- Document API specification, technical design and other key information for all projects/modules/services owned
Requirements:
- A highly talented developer with 4-7 years of hands-on experience in building secure and scalable web-based applications using Java in backend and JS-based frontend frameworks
- Strong knowledge of Java 8+, databases (SQL and NoSQL), MySql, Mongo
- Experience working with Cassandra, Spring Boot, Apache Spark, Kafka, RabbitMQ is highly desirable
- Working knowledge of any one or more of AngularJS/ReactJS/VueJS and CSS3, HTML5
- Strong experience in data modeling for data storage tools in SQL; experience with noSQL is highly desirable.
- Experience building scalable solutions for 2x, 5x and 10x growth with high quality and flexibility.
- Practitioner of test-driven development practices.
- Experience in creating and adhering to best practices for development
- Experience working with container technologies like Docker and knowledge of CI/CD processes for automated integration and deployment.
- Basic knowledge of AWS preferred
- Strong experience in Microservices (SRP) paradigm
- Willing to learn new technologies (Golang)
- Qualification B.Tech/M.Tech/MCA(IT/Computer Science)
- Years of Exp 4 - 7 years



Product Developer Competencies required: 1.5+ Years of Software Development Experience. 2.Deep knowledge in either one of the following set a)Core Java, Multi Threading, Spring, Security, JVM Troubleshooting, Build Automation, Scripting. b)Spring MVC, Multi Threading,JSP, Servlets, AJAX, HTML5,JQuery, Angular JS, JavaFX, Web Security. 3.Having knowledge or experience about below is plus a)SOAP, Restful Webservices, NoSQL, Messaging System, Distributed In-Memory DataGrid , ExtJS, JavaFX 4.Able to adopt and understand new technologies and utilize them efficiently 5.Passionate about code quality and readability 6.Basic experience and knowledge of UNIX 7.Excellent communication skills - essential to effective collaboration within the team and our clients across the globe. 8.Computer Science Degree or Technical equivalent, MS a plus

