
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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Role : Java Developer
Location : Bangalore
Key responsibilities
- Experience – 3 to 8 years of experience.
- 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 client facing applications.
- Good development experience with RDBMS
- Good knowledge of multi-threading and high-performance server-side development.
- Basic working knowledge of Unix/Linux.
- 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:
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. We help clients build world class products.
Our workforce consists of highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world. Wissen Technology has grown its revenues by 400% in these five years without any external funding or investments. Globally present with offices 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.
We have been certified as a Great Place to Work® company for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider.
Over the years, Wissen Group has successfully delivered $650 million worth of projects for more than 20 of the Fortune 500 companies. Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always ‘first time right’.
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. We have served clients across sectors like Banking, Ecommerce, Telecom, Healthcare, Manufacturing, and Energy.
Career Progression:
At Wissen Technology, your career growth is important for us. Therefore, we put in several efforts towards each employee’s career progression – to enable and empower them to grow within the company as well as to instill a sense of responsibility, loyalty, and trust.
There have been instances where a software engineer has grown from being an individual contributor to technical lead and now on the path to becoming a director responsible for growing revenues and profitability. We deeply value Ownership: taking responsibility, making it happen, not letting the ball drop, and being accountable.
5+ years of Experience designing, building and testing Java EE applications
Experience designing, implementing, and integrating Spring and/or Spring Boot
Good knowledge in recent version of Java, Oracle, JBoss, Hibernate
Experience in working with Messaging systems like Apache Kafka
Developing low level designs based on HLD
Reviewing code to check coding standards and best practices to ensure quality.
Hands on knowledge in Unit testing Framework like Junit and good understanding on Exception Handling in Java
Good Knowledge in UI like React or Angular
Experience designing SOAP / RESTful web services
Working on bug fixing and improving application performance
Familiarity with build tools such as Maven and Gradle.
Familiar with various design and architectural patterns
Familiarity with continuous integration
• 4+ years of software development experience in Java 8. Knowledge of Java 9.
• Experience in developing micro services in Spring Boot or Node.js. Experience in security, transaction, Idempotency, log tracing,
distributed caching, monitoring and containerization requirements of Micro services. Experience in developing High Cohesion &
Loosely Coupled Micro Services
• Should have excellent acumen in Data Structures, Algorithms, problem-solving and Logical/Analytical skills. Thorough
understanding of OOPS concepts, Design principles and implementation of different type of Design patterns.
• Sound understanding of concepts like Exceptional handling, Serialization/Deserialization and Immutability concepts, etc. Good
fundamental knowledge in Enums, Collections, Annotations, Generics, Autoboxing, etc.
• Experience with Multithreading, Concurrent Package and Concurrent APIs
• Basic understanding of Java Memory Management (JMM) including garbage collections concepts.
• Experience in RDBMS or NO SQL databases and writing SQL queries (Joins, group by, aggregate functions, etc.)
• Hands-on experience with JMS. Hands-on experience in creating RESTful webservices and consuming webservices. Hands-on
experience with Spring.
• Hands-on experience with any of the logging frameworks (SLF4J/LogBack/Log4j)
• Experience of writing Junit test cases using Mockito / Powermock frameworks. Should have practical experience with
Maven/Gradle and knowledge of version control systems like Git/SVN etc.
• Good communication skills and ability to work with global teams to define and deliver on projects. Sound
understanding/experience in software development process, test-driven development.
• 4+ years of software development experience in Java 8. Knowledge of Java9.
• Experience in developing micro services in Spring Boot or Node.js. Experience in security, transaction, Idempotency, log tracing,
distributed caching, monitoring and containerization requirements of Micro services. Experience in developing High Cohesion &
Loosely Coupled Micro Services
• Should have excellent acumen in Data Structures, Algorithms, problem-solving and Logical/Analytical skills. Thorough
understanding of OOPS concepts, Design principles and implementation of different type of Design patterns.
• Sound understanding of concepts like Exceptional handling, Serialization/Deserialization and Immutability concepts, etc. Good
fundamental knowledge in Enums, Collections, Annotations, Generics, Autoboxing, etc.
• Experience with Multithreading, Concurrent Package and Concurrent APIs
• Basic understanding of Java Memory Management (JMM) including garbage collections concepts.
• Experience in RDBMS or NO SQL databases and writing SQL queries (Joins, group by, aggregate functions, etc.)
• Hands-on experience with JMS. Hands-on experience in creating RESTful webservices and consuming webservices. Hands-on
experience with Spring.
• Hands-on experience with any of the logging frameworks (SLF4J/LogBack/Log4j)
• Experience of writing Junit test cases using Mockito / Powermock frameworks. Should have practical experience with
Maven/Gradle and knowledge of version control systems like Git/SVN etc.
• Good communication skills and ability to work with global teams to define and deliver on projects. Sound
understanding/experience in software development process, test-driven development.
Additional information
• Gender-Neutral Policy
• 18 paid holidays throughout the year for NCR/BLR (22 For Mumbai)
• Generous parental leave and new parent transition program
• Flexible work arrangements
• Employee Assistance Programs to help you in wellness and well being
� � What You’ll Do
• Build and scale backend services using Java & Spring Boot
• Work on API integrations (REST, SOAP), caching & rate limiting
• Contribute across the full SDLC – design, development, testing & deployment
• Solve problems around performance, scalability & reliability
� � What We’re Looking For
• Strong knowledge of Data Structures & Algorithms
• Experience with Java, Spring Boot, REST/SOAP
• Hands-on with system & solution design
• Database experience: MongoDB / PostgreSQL / MySQL / Oracle
• Good debugging skills & unit testing
• Familiarity with Git and AI coding assistants (Copilot, Claude, etc.)
Work With Us
Get To Know Us First!
Freecharge a subsidiary of Axis Bank Limited founded in 2010, is a Fin-Tech organisation revolutionizing Financial Products through technology.
At our core, we’re a creative company. Ideas and pixels is where we live and we love building magical products that make our users feel ‘wow’. At Freecharge, you'll have the chance to do the best work of your life. We’re on a journey to build something new, something different and something innovative & that requires passion to build such incredible products.
Come join us and shape the future of Fin-Tech.
Do You Make The Cut?
We are looking for a motivated developer to join our agile team of developers as a Lead to mentor and as an individual contributor to drive best practices in the product.
You will be responsible for the design, architecture, and delivery of a feature/product with the highest quality. Providing the product with visible benefit to end-users in an iterative fast-paced environment by creating solutions suitable for the job in real-time.
Title: Lead SDE (Backend)
Location: Gurugram
Experience: 3-7 Yrs.
Education: Bachelor’s / Master’s in Software Engineering
Responsibilities
- In this lead role, you will be designing and developing complex software systems that have been successfully delivered to customers.
- Ensure the quality of design of systems by serving as a technical lead on our most demanding, cross-functional teams
- Build reusable code and libraries for future use.
- Build highly available, high performance, scalable software and you will work on distributed systems for massive-scale systems
- Responsible for code quality of the product being developed along with unit and integration testing.
- Mentor junior developers to improve their skills, and make them more effective, product software engineers.
- Communicate with technical teams, and senior management to collect requirements, describe software product features, technical designs, and product strategy.
Sounds Like You?
- 4+ years of software development experience with Enterprise Java (JDK 8 and above), Spring (Boot, MVC, AOP, DI), ORM Frameworks.
- 1+ years of experience contributing to the architecture and design (LLD, HLD, Solid principles and design patterns and scaling) of new and current systems.
- Strong experience in technically leading junior developers with a focus on the goal.
- Strong experience in data structures & algorithms and their space & time complexities.
- Solid understanding of multithreading, microservices, MVC and strong OO skills with demonstrated experience in developing complex and reusable APIs.
- Strong experience working with Databases like SQL & NoSQL.
- Experience working with microservices-based architecture.
- Experience in high traffic, highly scalable distributed system designs, complex web applications, and code reviews.
- Experience working in an Agile environment.
- Solid understanding of the full software development life cycle and the domain.
- Good to have knowledge of messaging systems like SNS/ SQS /Kafka etc.
Life at Freecharge!
Our Playground!
- 450+ FCian’s, at Gurugram & Bengaluru locations
- Collaboration spaces & A flat and transparent culture
- Wow Corners, fun & reading Zone
- Best learning and development opportunities
Benefits
- Day-care facility
- Comprehensive Insurance Policy
- Wellness Benefits like Health check-ins
- 26 Weeks Maternity & 2 Weeks Paternity Leaves
- Adoption Assistance Program
- On-Site Parking at all locations
- A chance to have a big impact early in your career
ARE YOU READY?
TO
#ChargeYourFuture

Job Summary :
As a Software Development Engineer, you will be responsible for end-to-end delivery of software components all the way to production. In this position you will partner with our globally distributed cross-functional teams, product managers and other internal stakeholders. This position requires understanding business & technical requirements, designing clean solutions, implementing them and managing these systems. A key aspect of the role is to understand the digital commerce businesses part of KBX and implement technology systems that favourably align with business initiatives and requirements. The position will be evaluated in terms of the quality of the technology development, ongoing management of the systems and impact on business metrics.
Responsibilities :
- Work closely with cross functional teams to and deliver quality technology solutions
- Operational rigor for a rapidly growing tech stack and live portals
- Regular communication with management on status and risks.
- Measure success metrics and influence evolution of the tech product
- Be resourceful and find creative solutions to complex technical challenges.
Basic Qualifications :
- Ability to understand business requirements and build technology solutions that factor in the business requirements completely
- Possess an extremely sound understanding of basic areas of Computer Science such as Algorithms, Data Structures, Object Oriented, Databases.
- Excellent coding skills
- Great problem solving skills and propensity to learn and develop tech talent.
- Bachelor’s degree or higher in Computer Science and years of Software Development experience
Preferred Qualifications :
- Understanding on Web programming is must; full stack experience would be a plus.
- Understanding on AWS Cloud Stack (EC2, Lambda, Dynamo DB, Aurora) would be a plus
- Knowledge of serverless development
- Excellent verbal and written communication skills.

Backend Developer
Qualification: B.Tech./MCA, BCA in Computer Science or equivalent
Experience: 3 - 6 Years
Skills Required:
- Must Have: Java, Spring/ springboot
- Any 2 (Must) out of the below mentioned list :
- JPA/Hibernate
- Messaging queue/Kafka/SQS/distributed message/SNS/JMS
- NOSQL/ Aerospike/ Reddis /Cassendra
- Microservices
Roles and Responsibilities:
- Technical design, implementation, deployment, and support.
- Partner with Business Analysts to review and implement business
requirements.
- Perform development and unit testing, working closely with Business.
- Mentors and oversees development of resources, including reviewing designs and performing code reviews.
- Ensure designs are in compliance with specifications
- Contribute in all phases of the development lifecycle
- Developing high - volume, low - latency applications for mission - critical systems and delivering high - availability and performance
- Should have experience of working on Core Java/J2EE & OOPS concept
- Should be well versed with Spring/Struts & Apache Came l (OSGI Framework)
- Should have a good understanding of Hibernate and Other ORMs
- Should have an understanding of working on Web Service (SOAP/REST) and Maven
- Build tool such as Jenkins
- Caching Technique(Radis, Hazlecast, Aerospike)
- Database Knowledge- Oracle, MySQL
General Accountabilities/Job Responsibilities
- Participation in the requirements analysis, design, development and testing of applications.
- The candidate is expected to write code himself/herself.
- The candidate is expected to write high level code, code review, unit testing and deployment.
- Practical application of design principles with a focus on the user experience, usability, template
- designs, cross browser issues and client server concepts.
- Contributes to the development of project estimates, scheduling, and deliverables.
- Works closely with QA team to determine testing requirements to ensure full coverage and best
- quality of product.
- There is also the opportunity to mentor and guide junior team members in excelling their jobs.
Job Specifications
- BE/B. Tech. Computer Science or MCA from a reputed University.
- 3 -12 Years of experience in software development, with emphasis on JAVA/J2EE Server side programming.
- Hands on experience in Core Java, Multithreading, RMI, Socket programing,
- JDBC, NIO, webservices and Design patterns.
- Should have Knowledge of distributed system, distributed caching, messaging frameworks,
- ESB etc.
- Knowledge of Linux operating system and PostgreSQL/MySQL/MongoDB/Cassandra database is essential.
- Additionally, knowledge of HBase, Hadoop and Hive are desirable.
- Familiarity with message queue systems and AMQP and Kafka is desirable.
- Should have experience as a participant in Agile methodologies.
- Should have excellent written and verbal communication skills and presentation skills.
- This is not a Fullstack requirement, we are purely looking out for Backend resources.








