
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

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
Similar jobs
At BigThinkCode, our technology solves complex problems. We are looking for a talented problem solver with middleware and backend development expertise to join our technology team at Chennai.
Must have skills:
- Event drive architecture (EDA) microservices project experience MUST
- Any programming: Typescript or nodeJS or Python or Java or Golang
- Hands on experience using Middleware like e.g., Apache Kafka or RabbitMQ or Redis.
- Aware about Asynchronous and Loose Coupling.
- Familiar with API’s gateway and microservice design patterns.
Below job description for your reference, if interested share your profile to connect and discuss.
Company: BigThinkCode Technologies
URL: https://www.bigthinkcode.com/
Role: Senor software engineer (backend, middleware)
Experience required: 3–6 years
Work location: Chennai
Joining time: Immediate – 4 weeks
Work Mode: Work from office (Hybrid)
About the Role:
Scalable Systems & AI Integration – We are looking for a talented Senior Software Engineer to join our team and lead the development of high-performance, distributed systems. This role is ideal for an engineer who thrives in fast-paced environments, enjoys tackling complex data challenges, and is eager to bridge the gap between traditional microservices and modern Agentic AI workflows.
Key Responsibilities:
- Architect & Build: Design and implement highly scalable microservices capable of processing massive data volumes with low latency.
- Event-Driven Systems: Develop robust, asynchronous communication patterns using event-driven architecture to ensure system resilience and decoupling.
- AI Integration: Lead the integration of Large Language Models (LLMs) and Agentic AI workflows into existing enterprise applications to enhance automation and intelligence.
- Database Management: Optimize data storage and retrieval strategies; leverage MongoDB and explore/implement Graph Databases (e.g., Neo4j, Google Spanner) for complex relationship mapping.
- Deployment & Scaling: Containerize applications using Docker and manage deployments within Kubernetes (K8s) environments.
- Collaboration: Work closely with cross-functional teams to adapt to a rapidly evolving tech stack and translate business requirements into technical reality.
Core Requirements:
- Scalable Systems: Proven track record of building and maintaining production-grade systems handling high throughput and large datasets.
- Microservices: Good understanding of microservice design patterns, API gateways.
- Event-Driven Architecture: Strong experience with message brokers (e.g., Kafka, RabbitMQ, or Redis).
- Programming: While we are open to various backgrounds, the Node.js/MongoDB stack is our primary environment.
Why Join Us:
- Collaborative work environment.
- Exposure to modern tools and scalable application architectures.
- Medical cover for employee and eligible dependents.
- Tax beneficial salary structure.
- Comprehensive leave policy
- Competency development training programs.
Responsibilities:
• Collaborate with cross-functional teams, including front-end developers, product managers, and designers, to understand project requirements and translate them into technical specifications.
• Design and develop server-side logic, APIs, and database schema to support the functionality and performance requirements of our SaaS platform.
• Write clean, modular, and well-documented code using any relevant programming language preferably Java with SpringBoot.
• Optimize the backend systems for maximum speed and scalability, ensuring high performance and responsiveness of the application.
• Implement data storage solutions using PostgreSQL or other relational databases, ensuring data integrity and security.
• Conduct thorough testing and debugging to identify and resolve any issues or bugs in the backend code.
• Stay up-to-date with emerging technologies, industry trends, and best practices in backend development and contribute to the continuous improvement of our development processes.
Requirements:
• Proven work experience as a Backend Developer or similar role, with a focus on server-side development.
• Proficiency in working with relational databases, particularly PostgreSQL, and writing efficient SQL queries.
• Familiarity with SaaS concepts and architecture.
• Experience with API design and development, including RESTful APIs.
• Solid understanding of software development principles, including object-oriented programming, design patterns, and data structures.
• Experience with version control systems, such as Git.
• Strong problem-solving and analytical skills, with keen attention to detail.
• Excellent communication and teamwork skills, with the ability to collaborate effectively with cross-functional teams.
• Bachelor's degree in Computer Science, Engineering, or a related field is preferred, but not mandatory
● We are looking for a passionate individual contributor to join us as part of core engineering
team and help us in building our products and platform from scratch. The potential candidate
would be part of a strong tech team to help us disrupt the Indian consumer fintech space.
● You will be responsible for the full product lifecycle including requirements analysis, design,
implementation, testing, deployment and post-deployment monitoring.
Basic Qualification
● 1-6 years of strong individual contributor experience as a software engineer
● Strong knowledge of object-oriented programming concepts
● BS/MS or higher degree in computer science, computer engineering, or related work experience
● Knowledge of data structures/algorithms and an understanding of design tradeoffs
● Strong knowledge in Java and experience with Spring Framework
Following are some of the attributes we are looking for:
● Experience of working with large and cutting-edge internet startups and firms
● Excellent communication skills in both written and verbal communication
● A strong desire to break the code and find hidden bugs before customers find them in
production
● Strong sense of ownership, solid work ethic and a responsible team player
What's on offer
● Opportunity to be part of the core engineering team of a promising startup solving one of
the biggest business opportunities in India
● Unique opportunity in building a fintech business from scratch using most of the related
technologies and integration with major players
● Opportunity to experiment with latest technologies and develop full-fledged product using
them
● Stock options
● Competitive salary
Exp - 5 to 8Years
Notice period - Immediate to 30 Days
Job Description:
Working proficiency in developmental toolsets like Jira, Bitbucket, Splunk, Dynatrace etc.
Proficiency in Java/J2EE, Web Service, Micro service, Spring Boot, Kafka
Experience in developing, deploying and administering Java applications ,Java spring, Java Spring MVC, Spring Batch, Web services (REST and SOAP), HTML5, JavaScript, CSS, XML, Rest API, GIT, Tomcat.
Experience of Agile team working
REST API's & Spring experience is must. Spark experience is added advantage.
Regards,
Jyothi.
As the Java Developer, you will be responsible for developing cutting edge health-tech applications that include high scale transaction processing, intelligent bot based programs and data analytics.
What you will do:
- Building components for the company's advanced health tech platform using Java, Solr, SpringBoot, DialogFlow
- Communicating effectively in a cross-functional product development team and present ideas and solutions effectively
- Participating in technical planning and requirements gathering phases including design, code, test, troubleshoot, and document engineering software applications
- Developing the Code as per the requirements
- Working with product team and constructing the tech roadmap
- Designing, building and scaling the company's backend microservices
- Maintaining code integrity and organization
- Applying all quality requirements to make the code production ready
- Developing and deploying new features to facilitate related procedures and tools if necessary
- Developing documentation related to technical aspects and to facilitate current support, development, upgrades, or migrations
- Designing and building efficient, reusable, and reliable Java code
- Pro actively catching and fixing bugs, and providing support for the back end services
- Managing servers and infrastructure by keeping the lights on and refining the deployment architecture
What you need to have:
- Expert at hands on programming in JAVA and J2EE
- Must be from Product based companies (Should have developed Web Apps)
- Proven expertise in Java interfaces with MongoDB (or similar noSQL databases) as well as relational databases (mySQL, Postgres etc)
- Key contributor in atleast one 6+ months development project involving SpringBoot and Hibernate
- Strong understanding of application server infrastructure
- Good working knowledge of Maven based build systems
- Good understanding of build and deployment pipelines that involve ANT and Jenkins
- Proficient understanding of code versioning tools, such as Git or SVN
- Good knowledge of working on Rest APIs , Webservices
- Excellent problem-solving skills
- Hands on experience with Lucene/Solr
- Familiarity with DiagFlow based chat bot building
- Knowledge of NLP
- Learnt AI/ML systems
- Excellent interpersonal skills and the ability to build good working relationships.
- Must be self-motivated to prioritize and manage workload and meet critical project milestones and deadlines.
- Able to effectively collaborate with a team as well as take initiative and work independently to solve problems
Greetings from Sapper Software Pvt Ltd
Sapper.ai is a cloud native integration platform. Businesses use us to connect their applications, automate and optimize their processes and data connections. Sapper.ai is unique in our ability to connect and move data using any method (APIs, integrations, batch and streaming). We embed AI throughout the platform to proactively recommend integrations and process automations to business users freeing them up from mundane and time consuming tasks.
Website: https://www.sapper.ai/
Senior Java Developer : 3 to 7 years
Work Location: Work in the office at Baner, Pune
Job Requirements:
- Relevant experience in Java 1.7 or higher / J2EE Java development.
. Have experience of agile systems development methodologies such as SCRUM
- Experience in designing the solution and implementation.
- Is a communicative, positive, outgoing and driven team player.
- Solution-oriented, see opportunities and proactively proposing new solutions, speak and write fluently in English.
Skill Set Required:
- Experience in Java 8.
- Experience in Spring Boot and other spring framework like Spring data, AOP etc.
- Experience in MongoDB/ Kafka / RabbitMQ etc.
- Experience in REST API
- Have worked on microservices
- Should have worked on minimum 2- 3 projects
- Experience in writing effective Unit test case for better coverage.
- Experience in writing good quality code by following code quality tools likes SonarQube etc.
Roles and Responsibilities
- Relevant work experience in Java 1.7 or higher / J2EE Java development.
. Have experience of agile systems development methodologies such as SCRUM
- Experience in designing the solution and implementation.
- Is a communicative, positive, outgoing and driven team player.
- Solution-oriented, see opportunities and proactively propose new solutions, speak and write fluently in English.
Desired Candidate Profile
- Experience in Java 8.
- Experience in Spring Boot and other spring frameworks like Spring data, AOP, etc.
- Experience in MongoDB/ Kafka / RabbitMQ etc.
- Experience in REST API
- Have worked on microservices
- Should have worked on a minimum of 2- 3 projects
- Experience in writing effective Unit test cases for better coverage.
- Experience in writing good quality code by following code quality tools likes SonarQube etc.
Mandatory - Core Java / Java 8 & Spring Boot,
Good to have - MongoDB/Kafka / RabbitMQ / Micro Services
If you are interested and matching as per requirements, kindly share your updated CV and below details on hemant dot hingmire at sapper dot ai
Total Experience?
Relevant Experience?
Core Java?
Java 8?
MongoDB/Kafka / RabbitMQ?
Springboot?
Microservices?
Current Company?
Current CTC?
Expected CTC?
Notice Period (Max 30 days)?
Tentative Date to Join Us?
Reason for Change?
Offer in Hand (Yes/ No) Annual CTC?
Living in Pune Yes / No?
Immedite joining/Notice period upto 30 days
WFH till the end of Pendimic
Gurgaon Location
Roles & Responsibilities:
● Invent, design and build software that is stable and performant
● Primary role will be quality and timely delivery of the application/ feature/ module your team
will be working on
● Adopt and execute good design philosophy and code writing practices
● Ensure the code goes through rigorous tests and quality checks before deployment
● Work with other software engineers and database engineers to set excellent development
practices and deliver innovative changes in new and existing products
● Be hands-on technical, thus, leading by example using web, mobile and database
technologies
● Work on project ideas with customers, stakeholders and peers
● Be actively involved in code review process, design discussions, team planning
Minimum Qualifications:
● Bachelor's degree in Computer Science, Software Engineering, or a related technical
discipline
● 5-7 Years of Experience
● Expertise in software design and development
● Proficiency with at least one Object Oriented language (e.g. Java)
● Have knowledge about Computer Science fundamentals in object-oriented design, data
structures, algorithm design, problem-solving, and complexity analysis
● A strong track record of project delivery for large, cross-functional projects
● Experience with building high-performance, highly available and scalable distributed systems
● Experience with API Design, ability to architect and implement an intuitive customer and
third-party integration story
● Ability to think and analyse both breadthwise (client, server, DB, control flow) and depth-wise
(threads, sessions, space-time complexity) while designing and implementing services
- Develop creative solutions and write technical design based on the requirements.
- Work closely with peer teams to ensure that applications are written to allow for overall system performance.
- Assist in tuning and optimization.
- Develop and execute unit tests for product components.
- Perform peer code reviews and provide feedback.
- Promote high quality, scalability, and timely completion of projects.
- Apply agile approach to coordinate development and determine project scope and limitations.
- Bachelor degree in Engineering, CS or equivalent experience
- Development in Core Java, J2EE, Struts, spring, Client-Side scripting, Hibernate, Database
- Development of scalable core-java applications, Web Applications and Web Services
- OOP concepts
- Data Structures, algorithms and their applications
- Strong problem-solving skills
- Experience in building microservices
- Strong experience with Spring Boot stack (spring cloud, spring-data)
- Extensive experience in developing and consuming REST APIs
- Experience in Kafka distributed messaging
- Hands-on experience in Redis, Apache Ignite, Hazelcast
- Strong experience in RDMS and NoSQL databases Mongo
- Experience in using Elastic Search
- Experience in profiling applications
- Strong analytical skills and general logical reasoning
- Excellent written and verbal communication skills.
- Good understanding of Software development life cycle (SDLC)
- Basic SQL queries
What essential skills you need
▪ 8-11 years’ experience in back end Java/J2EE application development.
▪ Expertise in developing internet web applications using Java/J2EE technologies.
▪ Experience of working in a service-oriented architecture and web-based development.
▪ Experience in writing XSD, Wiz-dull including parsers like SAX, DOM.
▪ Experience in different modules of Spring framework like Dependency Injection (IoC), Spring MVC, Spring ORM along with JPA.
▪ Experience in Java Version 7.0+. Good experience with JMS, Spring & Hibernate.
▪ Experience in identifying database solutions for a given problem, preferably MySQL.
▪ Demonstrated ability to analyze business/functional requirements, develop well-structured, maintainable code, delivered on time, with automated tests. We are an XP/Agile development team.
▪ Hands on experience on tools like Log4j, JUnit, Mockito, SVN, Maven, Covertura.
▪ Knowledge in Java queuing system.
▪ Extensive Experience in using MVC (Model View Controller) architecture for developing applications using JSP, JSTL, Java Beans and Servlets.
▪ Hands on experience in using Application/Web servers like JBoss and Tomcat servers. Worked on databases like Oracle/MYSQL/NoSQL/HQL.
▪ Experience with e-commerce, retail, analytics, advertising, or media would be an advantage
- Candidate should have Good Communication and Presentation Skills.
- Candidate should have very Good Logical and Analytical Skills
- Candidate should have Programmatic and Management Skills
- An understanding of the Software Development Life Cycle as well as the business approach for the product.
- Ability to work in a team as well as an individual
- Ability to work under pressure and maintain deadlines
- Knowledge of open source tools and utilities
- Ability to understand Project Requirements









