
ompany Name – Wissen Technology
Group of companies in India – Wissen Technology & Wissen Infotech
Job Title: Java Developer
Experience range:- 3-6 Years
Location:- Chennai
Face 2 Face Drive : Friday & Saturday (11th & 12th July 2025)
· Strong written/verbal communication skills
· Minimum 3+Years of Core Java Programming with Collections Framework, Concurrent Programming, Multi-threading (Good knowledge in Executor service, Fork joins pool and other threading concepts)
· Good knowledge of the JVM with an understanding of performance and memory optimization.
- Good experience in Spring boot.
- Extensive and expert programming experience in JAVA programming language (strong OO skills preferred).
- Excellent knowledge on collections like, Array List, Vector, LinkedList, HashMap, Hash Table, HashSet is mandate.
- Exercised exemplary development practices including design specification, coding standards, unit testing, and code-reviews.
- Expert level understanding of Object-Oriented Concepts and Data Structures
- Good experience in Database (Sybase, Oracle or SQL Server) like indexing (clustered, non-clustered), hashing, segmenting, data types like clob / blob, views (materialized), replication, constraints, functions, triggers, procedures etc.

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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Experience in Backend
Experience in Java ,Spring boot
Experience in Microservices
Experience in Data structure ,Algorithm
Role & Responsibilities:
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Handle multiple products/modules simultaneously, lead the team in development and support
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Lead development teams
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Daily updates to customers and Product Managers/Delivery Managers
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Participate in design discussions
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Design and Architect small modules
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Effort estimations for modules, subsystems or use cases.
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Learn new skills and mentor the new team members
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Champion best practices within the team, including code reviews
Work Experience & Skills:
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B.E/B.Tech or any relevant Masters degree from reputed college.
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Strong 5+ years of experience in Java, J2EE, Spring IOC, Spring Annotations, Spring, JDBC, Jquery, Java script, HTML 5 and CSS
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Strong experience in Postgres or any SQL technology
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Experience with working on Tomcat, Apache, JBoss or any similar application server
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Should have 3+ years of experience in leading team.
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Good experience in JSON / RESTful API / Web Services.
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Experience in working on Agile methodology using Scrum and sprints
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Experience in using build tools, Maven, GIT, Bugzilla or similar tools.
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Experience in cloud technologies, Microservices and frameworks such as AWS or GPC,
container technologies like Docker is a plus.
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Ability to adapt to new development environments, changing business requirements and learning new systems highly desired
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Experience in Microservices, SpringBoot and Angular is a plus.
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Experience with tuning deployed applications for scalability and performance.
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Good knowledge of deployment and scripting on Linux/Unix servers
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Strong technical documentation skills.
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Good oral and written communication skills
Job Description
Qualifications
MCA or B.E/B.Tech
Experience
3+ years
Core Skill Sets:
1) Core Programming Language: JAVA 8
o Good command on basics/core.
o Sound knowledge of OOPS concept.
o Practical implementation using Collections.
o Problem solving skills using Collections/Java Beans/OOPS concept.
Web Scripting Language: JavaScript, JQuery, HTML 5
Web Programming Language: J2EE
o Knowledge of MVC architecture.
o Able to design a basic web-application using MVC architecture including database usage.
2) Database: Preferably Oracle/MySql
o Able to write sql queries.
o Knowledge of sql joins.
o Knowledge of some basic sql functions.
o Basic idea of stored procedures.
Additional Skill Sets:
XML/JSON/CSV
o Knowledge of reading/writing XML/JSON/CSV documents.
Web-service
o Knowledge of writing web-service (REST Full).
Web Framework
o Struts 2/Spring.
Database Framework
o Hibernate (using Spring JPA would be preferable).
Maven
3) Web/Application Server: Apache/Tomcat/JBoss/Weblogic/Websphere
o Basic experience of working/deployment on J2EE servers.
4) OS Platform: Windows/Linux.
5) Development Tool: Eclipse.
Purpose of the Position:
The employee would be responsible to build core and web-based applications having technical
implementation of XBRL/SDMX concept.
The employee would be responsible to write sql/procedures for the core/web-based application.
The employee would get a deep exposure on working with very good volume of data having such
database architecture capable of handling the same.
The employee would be responsible to build various web-services to be used by language
independent applications.
The employee would be very much responsible to work on standard technology in various parts
of the project.
About IRIS:
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
Should be in chennai location
Should be able to develop
Work location - Permanent WFH
Experience:-
SDE (Senior Developer Executive)
Experience- 1- 3Yrs
Budget :- 32 LPA Fixed
SDA (Senior developer Associate)
Experience:- 55 LPA Fixed
Skills Required- Java ,Data Structures, Algorithms, Coding, design Patterns, Multithreading.
Candidate from Product Based Background is Preferred.
- 4+ years Java developer.
- Very Strong Java Coding skills.
- API and Microservices experience
Primary Responsibilities:
- Principal Engineers are responsible for driving Technology and Engineering Best Practices in their respective teams.
- They should demonstrate a high level of ownership and accountability for their product and software systems.
- They are expected to go above and beyond their role by contributing in tools, processes and practices which bring operational efficiency and are aligned with business goals.
- They are expected to actively participate in development along with team members and create systems and modules which represent a working model of engineering best practices.
- They are expected to participate in code reviews, design reviews, architecture discussions.
- They are responsible for the Engineering metrics/health of their systems including strong alerting and monitoring mechanisms.
- They are expected to lead the adoption of best practices around coding, designing, performance of systems in a team.
Experience or Skills Required:
- B.Tech or Advanced degree in Computer Science with 6-12 years of industry experience in product based companies.
- Proficiency with Basic libraries for machine learning such as scikit-learn and pandas
- Experience in building solutions based on Linear Regression, Logistic Regression, K Nearest neighbor, SVM, Random Forest, Decision Trees.
- Strong experience with at least one of programming languages: Python, Java, Vertx, Golang
- Strong experience in building Server side reusable components based on Microservices or Distributed Architecture.
- Solid coding skills with ability to lead teams in identifying clearing tech debts for large scale code base.
- Good understanding & experience in improving performance of scalable and real time responsive applications.
- Excellent Problem Solving skills and an aptitude to approach problems from first principles and build solutions for those.
- Must have excellent communication (verbal & written), interpersonal, leadership, and problem solving skills.
- Must be able to work independently and enjoy working at a fast paced start-up environment
- Excellent Mentoring skills. Be the technical mentor to your team.
- Must be comfortable working in fuzzy environments where boundaries are not clearly defined.
Responsibilities :
- Design and develop scalable, high performance, and reliable API driven services/applications in Java language that operate whole day.
- Produce high quality software that is unit tested, code reviewed, and checked in regularly for continuous integration.
- Interact with both business, financial research, and technical stakeholders to deliver high quality products and services that meets/exceeds business, customer, and technical requirements.
- Own products and code from cradle to grave including production quality/performance monitoring.
Required Skills :
- Experience building and running high performance enterprise applications developed in Java language.
- Hands on experience developing Java web applications built with modern standards-based APIs including Java based REST APIs and implementations.
- Experience in Java language APIs, Spring technologies, Hibernate, JDBC, RDBMS and NoSQL based data persistence.
- Experience developing solutions on AWS Cloud leveraging AWS Lambda, S3, DynamoDB, Cloud Formation, and other related AWS technologies.
- Solid understanding of Domain Modeling with Relational and Non-Relational Databases.
- Excellent debugging and problem-solving skills, including ability to diagnose and fix performance and scalability issues.
- Experience working in an agile methodology-based development environment.
- Excellent written and verbal communication skills.
- BS/B.Tech/M.Tech in Computer Science or a related field.
Share your resumes if this opportunity suits you.
Experience Level: 3 to 5 Years
Job Location: Hyderabad
Responsibilities
· Excellent knowledge of Core Java and Spring
· Candidate should have a working knowledge of web services
· Should have worked in the distributed agile model and continuous integration
· Should have knowledge of designing and implementation of REST Web services
· Strong experience with REST API and web services
· Should be efficient with Java J2EE and related technologies.
Essential Requirements
· Strong Core Java and spring.
· Strong RESTFUL web service experience
· Strong SQL (preferably Oracle), JQuery, HTML/CSS, Oracle Restful, SOAP web services
· B. Tech/M. Tech from Tier-1 colleges like IIT, NIT, VIT, BIT
Primary Skill: Java, spring & RESTFUL Web services,









