
We are looking for a Node.js Developer who is proficient with writing API's, working with data, using AWS and capable of applying algorithms mainly machine learning-based to solve problems and create/modify features for our students. Your primary focus will be the development of all server-side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the front-end elements built by your co-workers into the application. Therefore, a basic understanding of front-end technologies is necessary as well.
Responsibilities
- Integration of user-facing elements developed by front-end developers with server-side logic
- Writing reusable, testable, and efficient code
- Design and implementation of low-latency, high-availability, and performant applications
- Implementation of security and data protection
- Use of algorithms to drive data analytics and features.
- Ability to use AWS to solve scale issues.
Apply if you can only arrive for a face to face interview in Bangalore.

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About the Role:
We are seeking a highly skilled and motivated individual to join our development team. The ideal candidate will have extensive experience with Node.js, AWS, and MongoDB, and a strong pro-activeness and ownership mindset.
Technical Expertise:
- Architect, design, and develop scalable and efficient backend services using Node.js (Nest.js).
- Design and manage cloud-based infrastructure on AWS, including EC2, ECS, RDS, Lambda, and other services.
- Work with MongoDB to design, implement, and maintain high-performance database solutions.
- Leverage Kafka, Docker and serverless technologies like SST to streamline deployments and infrastructure management.
- Optimize application performance and scalability across the stack.
- Ensure security and compliance standards are met across all development and deployment processes.
Bonus Points:
- Experience with other backend languages like Python and worked on Agentic AI
- Security knowledge and best practices.
🧠 Job Description: Senior Java Developer (8+ Years Experience)
Location: Mumbai, India
Employment Type: Full-time, Hybrid mode of working
Company: Wissen Technology
Website: www.wissen.com
🚀 About Wissen Technology
Wissen Technology is a specialized technology consulting firm delivering cutting-edge solutions to global leaders in Banking & Finance, Telecom, and Healthcare. Established in 2015 and part of the Wissen Group (founded in 2000), Wissen has scaled rapidly with impressive impact and recognition.
- 🌍 Offices in US, UK, India, Australia, Mexico, and Canada
- 👥 1700+ Wissen Technology professionals; part of a 4500-strong Wissen Group
- 🏆 Great Place to Work® Certified
- 🧠 Featured as a Top 20 AI/ML Vendor (CIO Insider, 2020)
- 📈 Achieved 400% revenue growth in 5 years (with zero external funding)
- 💼 Delivered $1B+ worth of projects to 50+ Fortune 500 companies
Learn more about our work and thought leadership:
📄 Articles by Wissen | 💼 LinkedIn
About the Role
We are seeking an experienced Senior Java Developer with 8+ years of hands-on expertise in building scalable, high-performance applications. The ideal candidate will have strong fundamentals in Java, OOPS, Multithreading, Spring concepts, and SQL, and will play a key role in designing, developing, and optimizing enterprise-grade solutions.
Key Responsibilities
- Design, develop, and maintain complex applications using Core Java and Spring frameworks
- Apply advanced Object-Oriented Programming (OOPS) principles to deliver clean, modular, and reusable code
- Implement and optimize multithreaded applications for high-performance systems
- Work with SQL databases for efficient data modeling, query optimization, and integration
- Collaborate with cross-functional teams to gather requirements and translate them into technical solutions
- Conduct code reviews, troubleshoot issues, and ensure adherence to best practices
- Mentor junior developers and contribute to technical knowledge sharing within the team
- Ensure application scalability, performance tuning, and security compliance
Required Skills & Qualifications
- Bachelor’s/Master’s degree in Computer Science, Engineering, or related field
- 8+ years of professional experience in Java development
- Strong expertise in Core Java, OOPS, and Multithreading
- Hands-on experience with Spring concepts (Spring Core, Spring MVC, Spring Boot preferred)
- Proficiency in SQL and database design (MySQL, Oracle, PostgreSQL, etc.)
- Solid understanding of software development life cycle (SDLC) and Agile methodologies
- Strong analytical, problem-solving, and communication skills
🌟 Why Wissen?
Join a company that combines start-up agility with enterprise stability. Work alongside some of the brightest minds from institutions like MIT, Wharton, IITs, IIMs, and NITs. Be part of mission-critical projects for Fortune 500 giants, and grow in a culture that invests in your future.
Hands-on working knowledge and experience is required in:
a. JavaScript, Typescript, NodeJS (Express, NestJs, etc. )
b. Experience working in GCP or AWS or Azure
c. Experience working in Containers & Unix Platforms
d. Relational Databases (PostgreSQL, MySQL, SQL, etc. )
e. Agile Methodologies (Scrum, TDD, BDD, etc. )
f. Understanding of Microservices Architecture, Domain Driver Design, Test Driven Development and Secure Design patterns and architecture is a must
g. Data Structures and Algorithms using Javascript, Typescript and/or other Programing Languages
h. Strong organizational skills i. Agile Methodologies (Scrum, TDD, BDD, etc. )
Experience with several of the following tools/technologies is desirable:
a. GIT (Bit Bucket, Gitlab, etc. ), Jira, Gradle, Maven, Jenkins, SharePoint, Eclipse/IntelliJ.
b. Design Patterns and implementing the Design Patterns
c. Development of Complex Application and System Architectures
d. NoSQL Databases (Redis, Mongo, etc. ) e. Full stack development
f. Experience working with CI/CD pipelines with for example GitHub Actions.
Knowledge of the following technologies is a plus:
a. Other Programming Languages (Java, Python, etc. )
b. Continuous Integration and Continuous Delivery Tools like Jenkins, Git, etc
Job Description
- Managing the interchange of data between the server and the users.
- Development of all server-side logic, ensuring high performance and responsiveness to requests from the front-end Integrating the front-end elements built by your co-workers into the application; therefore, a basic understanding of front-end technologies is necessary as well.
- Writing reusable, testable, and efficient code.
- Design and implementation of low-latency, high-availability, and performant applications.
- Integration of user-facing elements developed by front-end developers with server-side logic
- Implementation of security and data protection.
Expected experience with
- Should have worked on the Django REST framework.
- Familiarity with some Pandas, Numpy, text parsing/mining and ORM (Object Relational Mapper) libraries
- Able to integrate multiple data sources and databases into one system
- Understanding of the threading limitations of Python, and multi-process architecture
- Good understanding of server-side templating languages
- Worked on Amazon cloud solutions
- Understanding of accessibility and security compliance
- Knowledge of user authentication and authorization between multiple systems, servers, and environments
- Understanding of fundamental design principles behind a scalable application
- Familiarity with event-driven programming in Python
- Able to create database schemas that represent and support business processes
- Strong unit test and debugging skills
- Proficient understanding of code versioning tool
- Excellent written and verbal communication skills.
- Should know about HDL and LLD.
- Should know about making python packages
- Should have worked on microservice-based Architecture
MCA /B.E/B.Tech/BCA
Experience
3-4 years: 2 Position
Core Skill Sets
Core Programming Language*: JAVA 7/8 or above
o Command on basics/core.
o Knowledge of OOPS concept.
o Problem solving skills using Collections/Java Beans/OOPS concept.
Web Programming Language*: J2EE
o Knowledge of MVC architecture [Servlet (or) Struts 2 (or) Spring].
o Able to debug and deploy web-application.
Database*: Preferably Oracle/MySql
o Able to write sql queries.
o Knowledge of sql joins.
o Basic idea of stored procedures.
Additional Skill Sets
XML/JSON/CSV
o Knowledge of understanding XML/JSON/CSV documents.
Web-service
o Knowledge of understanding web-service (REST Full).
o Testing web-services via some tool (e.g. Postman).
Web/Application Server*: Apache/Tomcat/JBoss/Weblogic/Websphere
o Basic deployment experience on web applications.
OS Platform*: Linux.
o Knowledge of shell commands like create directory, change permission/owner,
move/copy files/folder, check process running and crontab.
o Knowledge to work and use putty.
Development Tool*: Eclipse/NetBeans.
Purpose of the Position
Perform day-to-day support activity at the client side.
Monitoring all the application components as part of the daily monitoring process to make sure the components and services are functional.
Regularly monitor the logs of the components and services and identify and debug the
errors if any and accordingly co-ordinate with the off-shore team if needed.
Support off-shore team to help deploy their application components and services.
Perform basis debugging activity to identify any issue present in the client environment and provide the details to the off-shore team.
About Company :
IRIS Business Services Limited is one of the first providers of full professional XBRL products and solutions to organizations globally. The company headquartered in Mumbai, India with international offices in United States, Singapore, United Kingdom, and the UAE.
IRIS is a direct member of XBRL International and XBRL US. The Company has over eighteen years of proven expertise in the financial information management space, providing customized technology solutions for data and content management, for the dissemination of information to investors and stock exchanges, and for effective content management to institutional clients.
Over the last seven years, IRIS has been very closely involved in the XBRL space, in taxonomy creation, software solutions and in the conversion of structured and unstructured data into XBRL for SEC filing in the US. IRIS has multidisciplinary skills in XBRL as well as in technology. Taxonomy experts, software engineers, business analysts and accountants come together to provide a complete range of products and services across the XBRL supply chain.
For more information, please visit http://www.irisbusiness.com
For this role we expect you to have 3+ years of experience in Backend development. You should have strong command
of Python, REST and Flask/Django along with some experience in GIT is nice to have. If you have knowledge about client
side languages like JS, ReactJS and experience in API design and development, it is a huge plus.
You should be knowledgeable about programming languages, operating systems, networks, databases and SQL,
algorithms, architecture, code design and design patterns









