
Job Title: Java Developer
Location: Chennai
Experience: 3+ Years
Employment Type: Full-time
Job Description:
We are looking for a skilled and passionate Java Developer with a strong foundation in Core Java and Object-Oriented Programming concepts. The ideal candidate should possess excellent communication skills and have hands-on experience with multi-threading, collections, databases, and backend development frameworks like Spring and Spring Boot. Exposure to cloud platforms and frontend technologies is a plus.
Key Responsibilities:
- Design, develop, and maintain scalable Java applications using Core Java and Spring Boot.
- Apply strong knowledge of Java Collections Framework and concurrent programming techniques including ExecutorService, ForkJoinPool, and other threading mechanisms.
- Optimize JVM performance and memory usage.
- Participate in all phases of the software development lifecycle: requirement gathering, design, development, testing, and deployment.
- Write clean, maintainable code following best practices, coding standards, and design patterns.
- Conduct code reviews, unit testing, and participate in peer programming.
- Collaborate effectively with team members and stakeholders to deliver high-quality solutions.
- Interact with databases like Oracle, Sybase, or SQL Server, with a strong understanding of views, triggers, indexing, and stored procedures.
Must-Have Skills:
- 3+ years of hands-on experience in Core Java
- Strong understanding of Collections, Multithreading, and Concurrency
- Proficient in Spring Framework, especially Spring Boot
- Deep understanding of Object-Oriented Design and Data Structures
- Strong experience in RDBMS (Sybase/Oracle/SQL Server) including indexing, replication, CLOB/BLOB types, views, and procedures
- Excellent written and verbal communication skills
Good to Have:
- Exposure to Microservices architecture
- Familiarity with NoSQL databases
- Knowledge or willingness to work on frontend technologies
- Experience working with public cloud platforms (AWS, Azure, GCP)
Soft Skills:
- Strong analytical and problem-solving skills
- Team player with a proactive attitude
- Ability to work independently and in a fast-paced environment
If you are passionate about Java development and want to work on cutting-edge technologies in a collaborative environment, we would love to hear from you.
Let me know if you want this converted into a company-branded format or with CTC/NP details added.

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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Job Description - Omniflow and Java Developer
Should have working experience between 6-8 years in Java development
Mandatory skills are good knowledge of object oriented concepts, experience of working on Spring boot application, should have worked on hibernate ORMS and candidate must have clear understanding of database concepts
Optional skills include knowledge of angular framework and postgreSQL database
Good to have knowledge of jBPM open source workflow
Qualifications
Master or Bachelor degree in Engineering/Computer Science /Information Technology
Additional Information
Skills and Competencies:
Strong documentation skills
Excellent communication skills, both written and verbal
Decision making and problem solving skills
Good organizational skills
- Strong experience in core Java programming.
- Good experience in Spring and Hibernate
- Proficiency with JSF/third party JSF components framework
- Must have at least 2+ years exp. of Web application development with exp. in using any MVC framework
- Knowledge of OOP concepts, industry best practices, and design
- Professional, precise communication skills
- Work experience writing Unit tests
- Good understanding of web technology and enterprise-level applications
- Work experience in applying the best practices of Web Application development
- Working experience in an Agile team especially with SCRUM
- Good to have experience in JavaScript frameworks
- Good to have experience in JSON, HTML5, CSS and XML
Following Skills will be an added advantage
- Working experience of Prime-Faces
- Knowledge of Spring Web Flow
Behavioral Skill
- Should be self-motivated and a quick learner with a problem-solving mind-set
- Attention to detail and follow-through to achieve good quality and meet deadlines.
- Ability to work effectively in a team as well as in an individual environment
- Should have excellent written and verbal communication skills
Desired Candidate Profile
- A team focus with strong collaboration and communication skills
- Exceptional ability to quickly grasp high-level business goals, derive requirements, and translate them into effective technical solutions
- Exceptional object-oriented thinking, design and programming skills (Java 8 or 11)
- Expertise with the following technologies : Data Structures, Design Patterns ,Code Versioning Tools(Github/bitbucket/..), XML, JSON, Spring Batch Restful, Spring Cloud, Grafana(Knowledge/Experience), Kafka, Spring Boot, Microservices, DB/NoSQL, Docker, Kubernetes, AWS/GCP, Architecture design (Patterns) Agile, JIRA.
- Penchant toward self-motivation and continuous improvement; these words should describe you: dedicated, energetic, curious, conscientious, and flexible.


Strong fundamentals in OOPS, RDBMS, Data structures, and Design patterns
Experience in any SQL database (Preferably SQL Server)
Ability to write clean code
Ability to write automated unit tests using frameworks such as NUnit, Mock, etc.
Ability to communicate and articulate clearly and work collaboratively in an agile team
Experience with code repositories like git
Ability to communicate and articulate clearly and work collaboratively in an agile team
Good to have:
API Integrations with UI Layer
Solid understanding of Spring and Spring Boot Framework
Experience with NoSQL DB, preferable MongoDB
Experience working with Agile Methodology and BDD Framework
Experience with Microservices Architecture
● He/She is a responsive team player who can proactively contribute for building technical
strategies for applications and systems by promoting an understanding of the technology and
business roadmap.
● He /she is someone who thrives in a fun, fast-paced, dynamic, startup-like environment.
● Work very closely with various business stakeholders to drive the execution of multiple
business plans and technologies .
● Work closely with Product, Design, and Marketing to conceive features, plan projects, and
build roadmaps
● Prior experience with scalable Architecture managing team of minimum 5 engineers and
coaching, mentoring while maintaining a role with code development.
● Proven history of contributing to product strategy and shipping products with multi-functional
teams.
● Highly involved in recruitment while building team also leading app development for both
platforms
● Promote and support company policies, procedures, mission, values, and standards of ethics
and integrity.
Minimum Qualification:
● Hands-on working on Java ( {Language understanding - Java 8, Lambdas, Collections,
popular frameworks & libraries}, JVM, GC tuning, performance tuning)
● Worked on REST frameworks/libraries like Spring MVC, Spring Boot, Dropwizard, REST
Express etc
● Worked on Relational data stores viz. MySQL, Oracle or Postgres
● Worked on Non-relational data stores viz. Cassandra, HBase, Couchbase, MongoDB etc
● Worked on caching infra viz. Redis, Memcached, Aerospike, Riak etc
● Worked on Queueing infra viz. Kafka, RabbitMQ, ActiveMQ et

• You will design high level architecture solutions, write high quality code, do code reviews
• You will take ownership to run and maintain the services in Cloud infrastructure
• You will continuously evaluate relevant technologies, influence and drive architecture and design discussions
You must have
• Strong desire to work at an early stage startup
• Strong desire to learn and improve yourself every day
• Strong hands-on development experience
• Proficiency in Computer Science fundamentals – object oriented design, data structures, algorithm - design, and complexity analysis
• Strong knowledge of sql/nosql databases
• Strong experience in developing Rest APIs
• Hands-on experience in developing and deploying MicroServices
• Experience with designing scalable architecture
• Strong knowledge of git
• Experience with redis, memcache
• Experience with Kafka, RabbitMQ
• Experience with ElasticSearch, Solr
• Experience with running applications in production, CI/CD
• Experience with performance tuning
• At least 2 year experience in leading a small team of developers
It would be nice if you also have
• Experience with Google Maps or similar technologies
• Experience with geospatial applications/libraries
Fullstack Developer/Architect/Programmer:
- 8-10 years experience as Developer/Programmer.
- Should have an expertise in Core Java, Java & J2ee
- Built MVC based Web Application Using JSP/Struts framework
- Experience in Webservices-Restful
- Experience in Application Servers like Tomcat and WebLogic
- Good Knowledge of implementing JMS messaging services
- Good knowledge of HTML5,CSS and JavaScript – Angular.js,Bootstrap, React.js
- Should have skills in Spring 3.x, Hibernate, Weblogic 12c Implementation

