
Experience in Core Java and Spring Boot.
• Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns.
• Should have the ability to analyze, design, develop and test complex, low-latency clientfacing applications.
• Good development experience with RDBMS.
• Good knowledge of multi-threading and high-performance server-side development.
• working knowledge of Kafka
• Excellent problem solving and coding skills.
• Strong interpersonal, communication and analytical skills.
• Should have the ability to express their design ideas and thoughts.

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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Position Overview:
We are seeking a Node.js Developer with 1-2 years of experience to join our team. The ideal candidate should have hands-on experience in backend development, a solid understanding of JavaScript, Express.js, and familiarity with databases. You will be responsible for developing and maintaining server-side applications, collaborating with front-end teams, and ensuring optimal performance.
Key Responsibilities:
- Backend Development: Build and maintain server-side applications using Node.js and Express.js.
- API Development: Design and implement RESTful APIs to support various functionalities.
- Database Management: Work with both SQL (MySQL, PostgreSQL) and NoSQL (MongoDB) databases.
- Code Quality & Testing: Write clean, reusable, and testable code while following best practices.
- Performance Optimization: Optimize applications for speed and scalability.
- Troubleshooting & Debugging: Identify and resolve application issues to ensure smooth operations.
- Security Implementation: Apply basic security measures to protect applications and data.
- Collaboration: Work closely with front-end developers to integrate UI components with backend logic.
Required Qualifications:
- 1-2 years of experience in Node.js backend development.
- Strong proficiency in JavaScript and ES6+ concepts.
- Hands-on experience with Express.js or similar frameworks.
- Familiarity with front-end technologies (HTML, CSS, React/Angular is a plus).
- Experience working with databases (MySQL, PostgreSQL, MongoDB).
- Basic understanding of asynchronous programming and event-driven architecture.
- Experience with Git for version control.
- Knowledge of basic cloud services (AWS, Azure, or GCP is a plus).
- Understanding of Docker and containerization is an advantage.
- Good problem-solving skills and willingness to learn.
JOB DESCRIPTION:
Location: Pune, Mumbai
Mode of Work : 3 days from Office
DSA(Collections, Hash maps, trees, Linkedlist and Arrays, etc), Core Oops concepts(Multithreading, Multi Processing, Polymorphism, Inheritance etc) Annotations in Spring and Spring boot, Java 8 Vital features, database Optimization, Microsevices and Rest API
- Design, develop, and maintain low-latency, high-performance enterprise applications using Core Java (Java 5.0 and above).
- Implement and integrate APIs using Spring Framework and Apache CXF.
- Build microservices-based architecture for scalable and distributed systems.
- Collaborate with cross-functional teams for high/low-level design, development, and deployment of software solutions.
- Optimize performance through efficient multithreading, memory management, and algorithm design.
- Ensure best coding practices, conduct code reviews, and perform unit/integration testing.
- Work with RDBMS (preferably Sybase) for backend data integration.
- Analyze complex business problems and deliver innovative technology solutions in the financial/trading domain.
- Work in Unix/Linux environments for deployment and troubleshooting.
Software Developer
Roles and Responsibilities
- Apply knowledge set to fetch data from multiple online sources, cleanse it and build APIs on top of it
- Develop a deep understanding of our vast data sources on the web and know exactly how, when, and which data to scrap, parse and store
- We're looking for people who will naturally take ownership of data products and who can bring a project all the way from a fast prototype to production.
Desired Candidate Profile
- At Least 1-2 years of experience
- Strong coding experience in Python (knowledge of Javascripts is a plus)
- Strong knowledge of scraping frameworks in Python (Request, Beautiful Soup)
- Experience with SQL and NoSQL databases
- Knowledge in Version Control tools like GIT.
- Good understanding and hands-on with scheduling and managing tasks with cron.
Nice to have:
- Experience of having worked with elastic search
- Experience with multi-processing, multi-threading, and AWS/Azure is a plus
- Experience with web crawling is a plus
- Deploy server/related components to staging, live environments.
- Experience with cloud environments like AWS,etc as well as cloud solutions like Docker,Lambda, etc
- Experience in DevOps and related practices to improve development lifecycle, continuous delivery with high quality is an advantage.
- Compile and analyze data, processes, and codes to troubleshoot problems and identify areas for improvement
● You should be able to take ownership of a project end to end.
● Your primary focus will be to build, implement & maintain the complete back-end stack of the product.
● You will create production-grade code and will implement the solutions which run bug-free.
● Participate in product development discussions and product development road-maps.
● Collaborate with members across departments to identify and build on
improvements to products, processes, and systems.
Required Experience and Qualifications:
2 to 6 years of software development experience.
● Experience in working on application architecture design will be preferred.
● Experience in working on at least 1 or 2 projects, managing or leading the entire
tasks.
● Experience in Docker/Kubernetes, Agile methodologies & CI/CD automation process.
● Knowledge of Queueing technologies like Kafka, RabbitMQ, ActiveMQ, and Version control using Git.
● Experience in microservices architecture, in-memory systems like Redis and basic knowledge of Linux/Unix systems.
● Experience in building applications processing large volumes of streaming data will be preferred.
● Experience from a middle size company or from a startup will be preferred.
● BE/MCA/MSc in Computers/Information technology with a good academic record.
• Strong technical experience with Java 8 and above
• Sound understanding of Database concepts & experienced with MySQL.
• Strong technical experience with JavaScript/Ajax/jQuery
• Good knowledge of Angular 2+ version.
• Good knowledge of REST APIs and Spring Boot.
• Awareness with any of version control systems like Git/SVN/TFS/VSS etc
• Awareness and exposure of AWS architecture components such as S3, SQS, Lambda, EKS etc
Good to Have:
• Knowledge of Docker and Containerization.
• Working in Agile env will be plus.
• Understanding of Code Optimization techniques, Code coverage tool and code analysis tool.
• Working knowledge of CI/CD process.
• Experience of onshore/offshore team collaborations.
• Makes a valuable contribution to team objectives, displays trust and mutual understanding, accepts constructive feedback, and handles confrontation constructively
We are looking for a Java/Full stack Developer with experience in building high-performing, scalable, enterprise-grade applications.
You will be part of a talented software team that works on mission-critical applications. Java developer roles and responsibilities include managing Java application development while providing expertise in the full software development lifecycle, from concept and design to testing.
Java developer responsibilities include designing, developing and delivering high-volume, low-latency applications for mission-critical systems.
Experience : 2+ years
Location : Work from Home (full time)
Notice Period : 0 to 30 days ( Immediate joiners are preferred)
Roles & Responsibilities :
(This role encompassing both API engineering using Java stack and web development. Experience in designing, developing, testing and successfully deploying critical and complex projects.)
-
Contribute in all phases of the development lifecycle
-
Write well designed, testable, efficient code
-
Ensure designs are in compliance with specifications
-
Prepare and produce releases of software components
-
Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review
-
Build reusable code and libraries for future use
Required Skill set :
-
Java background with a minimum of 2 years experience in Java technologies.
-
Experience in designing and developing application backend using frameworks like Spring Boot, Spring MVC, Jersey, JPA, Hibernate, SQL, Linux, JSON, XML, OAuth etc.
-
Add on : Experience with frontend technologies like CSS,HTML,Javascript, NodeJS/Express, Angular, React, ExtJS, Vue is preferred
-
Experience with both SQL and NoSQL database systems and writing SQL queries
-
Strong experience building, designing, and consuming Restful web services.
-
Exposure of Cloud Infrastructure - AWS and Alibaba Cloud
-
Excellent understanding of ORM and Database concepts
-
Experience with developing unit test code using JUNIT, Power Mock/EasyMock/Mockito etc.
-
Experience with Git, Maven and CI/CD pipelines to deploy on Cloud applications
-
Experience & knowledge on Micro services Architecture and API development using Java, spring, Spring Boot
-
Experienced in roles conducting requirements gathering, writing user stories, creating application design and using design patterns
-
Good knowledge on credentials/secrets management and data encryption techniques
-
Good knowledge on coding standards, design patterns, unit testing.
-
Good hands - on BitBucket/Github is preferred.
● We believe that the role of an engineer at a typical product company in India has to evolve from just working in a request response mode to something more involved.
● Typically an engineer has very little to no connection with the product, its users, overall success criteria or long term vision of the product that he/she is working on.
● The system is not setup to encourage it. Engineers are evaluated on their tech prowess and very little attention is given to other aspects of being a successful engineer.
● We don’t hold appraisals as we don’t believe that evaluation of work and feedback is a constant affair rather than every 6 or 12 months. Besides there is no better testament of your abilities than the growth of the product.
● We don’t have a concept of hierarchy and hence we don’t have promotions. All we have in Udaan are Software Engineers.
Skills & Knowledge:
○ 4-15 years of experience
○ Sound knowledge in Programming,
○ High Ownership & Impact oriented
○ Creative thinker & Implementation
○ Highly Customer Obsessed & Always Insisting on Highest Standards
scalability, accessibility, usability, design, and security in mind. If you don't have all
of these, that's ok, but be excited about learning the few you don't know.
Familiar with building complex web applications using Javascript / AJAX, XHTML,
CSS.
Experience with or knowledge of jQuery, Java, Struts, and other website technologies.
Strong, object-oriented design and coding skills (C/C++ and/or Java preferably on a
UNIX or Linux platform)
Solid software development background including design patterns, data structures,
test driven development
Knowledge of Perl or other scripting languages a plus
Experience with distributed (multi-tiered) systems, algorithms, and relational
databases
Software development experience in building highly scalable applications
Master’s degree in Computer Science, Computer Engineering or related technical
discipline
Experience in eCommerce and Deep hands-on technical expertise
Ability to handle multiple competing priorities in a fast-paced environment
Experience working with service oriented architectures and web based solutions.









