
We're looking for a high-energy Java engineer to design and implement scalable microservices using Spring Boot. You'll collaborate across teams to deliver clean, efficient, and high-performance backend services.
š ļø Key Responsibilities
- Design, develop, and maintain RESTful services and microservices using Spring Boot
- Utilize OOP, Java Collections, Exception Handling, and method overloading/overriding in modern coding practices
- Build and optimize multithreaded systems (Threads, synchronization, wait(), notify(), yield()) for performance and scalability
- Write unit and integration tests (JUnit, Mockito, Spring Test) to ensure code quality
- Collaborate with cross-functional teams (QA, DevOps, Product) through code reviews and feature planning
- Diagnose and resolve performance bottlenecksJVM tuning, SQL/caching optimizations
- Adhere to coding standards, best practices, and participate in peer code review
šÆ Required Skills & Experience
- Strong Java fundamentals: OOP, Collections, Generics, Exception Handling
- Concurrency mastery: multithreading, synchronization primitives (wait(), notify(), yield())
- Spring Boot: solid experience building, testing, deploying REST APIs
- Microservices: design, inter-service communication, stateless service patterns
- Testing frameworks: JUnit, Mockito, Spring Test
- Performance tuning: profiling, optimization with JVM settings and database queries
- Tools & practices: Git, Maven/Gradle, CI/CD pipelines, Docker/Kubernetes (plus)
- Soft skills: strong problem-solving, collaboration, and effective communication

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 WorkĀ®. 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.
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We're looking for highly skilled experienced engineers to design and build high-scale, cloud-based data processing systems that can handle massive amounts of data with low latency. You'll work with a team of smart, motivated, and diverse people and be given the autonomy and support to do your best work. This is a rare opportunity to make a meaningful impact in society while working in a dynamic and flexible workplace where you'll belong and be encouraged.
Qualifications:
- Bachelor's Degree required
- Significant experience with distributed systems.
- Experience with modern programming languages such as Java, C#, C/C++, or Ruby.
- Experience with container platforms such as DC/OS, Kubernetes
- Fluency in technologies and design concepts around Big Data processing and relational databases, such as the Hadoop ecosystem, Map/Reduce, stream processing, etc.
- Experience with production operations and good practices for putting quality code into production and troubleshooting issues when they arise.
- Effective communication of technical ideas verbally and in writing, including technical proposals, design specs, architecture diagrams, and presentations.
- Ability to collaborate effectively with the team and other stakeholders.
- Preferably, production experience with Cloud and data processing technologies.
Responsibilities:
As a member of the software engineering division, you will take an active role in the definition and evolution of standard practices and procedures. Define specifications for significant new projects and specify, design and develop software according to those specifications. You will perform professional software development tasks associated with the developing, designing and debugging of software applications or operating systems.
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- Design and build distributed, scalable, and fault-tolerant software systems.
- Build cloud services on top of the modern OCI infrastructure.
- Participate in the entire software lifecycle, from design to development, to quality assurance, and to production.
- Invest in the best engineering and operational practices upfront to ensure our software quality bar is high.
- Optimize data processing pipelines for orders of magnitude higher throughput and faster latencies.
- Leverage a plethora of internal tooling at OCI to develop, build, deploy, and troubleshoot software.
- 5+ years of software development experience in Java 8+ and Microservices.
- Experience in developing micro services.Ā Experience in developing High Cohesion & Loosely Coupled Micro Services.
- Experienced in skills ofĀ requirement, analysis, design, develop, Java, springboot, microservices, rest api, AWS, lambda, EC2, Jenkins, design pattern, spring security, splunk, auth, docker, SOLID
- Hands on experience on Microservices Architecture.
- Should have excellent acumen in Data Structures, algorithms, problem-solving and Logical/Analytical skills. Thorough understanding ofĀ OOPS concepts, Design principles and implementation of different type of Design patterns.
- 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 Message Broker like Kafka/Rabbitmq or other. Hands-on experience in creating RESTful webservices and consuming web services. Hands-on experience with spring Cloud/Spring Boot.
- 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.
- Hands on experience on Cloud deployment/development like AWS/Azure/GCP.
- 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.
Benefits of Working Here:
- Gender Neutral /Diversified Culture
- 51 Leaves annually
- Insurance covered for family
- Incentives, Bonus
- Permanent WFH Option
- Generous parental leave and new parent transition program
- Flexible work arrangements
- Having around 8+ years of Experience in IT industry in Software Development.
- Sound knowledge in Core Java
- Having work experience in SDN/NFV, Orchestration
- Having work experience in Open source and Open Flow Controller(SDN).
- Experience in Aglie methodology.
- Good Knowledge on MySQL ,Postgresql or any Timeseries DB,Kafka, Zookeeper
- Good Knowledge on ONOS, ODL (OpenDaylight) OpenKilda,Mininet.
- Having work experience in MVT/MVC architecture.
- Having good knowledge networks, devices, service modeling and automation in systems.
- Having work experience on API & JSON implƩmentation.
- Knowledge in OpenStack,Ansible, Shellscript, Chef, Puppet,
- Good Understanding of Software Development (i.e. SDLC)
- Good team player enthusiastic and quick learner
- Good interpersonal skill, commitment, result oriented with a quest and learn new technologies and understanding challenging tasks
- Knowledge in AWS, AZURE Cloud


Location: Jaipur/ Remote
Employment type: Full-time
What you bring to the team:
ļ¼ Experience
⢠University degree in Computer Science or other related fields preferred; equivalent experience will be considered.
⢠5+ yearsā experience
ļ¼ Knowledge
⢠Experience in Java (min. 3 Years in Production), JDBC / SQL (Oracle or SQL Server or PostgreSQL), Spring Framework (Core, JDBC, Transactions, Spring REST), Hibernate (Core, HQL, Spring Integration).
⢠Experience in JavaScript (objects, asynchronous, arrays, prototypes, classes).
⢠Experience in jQuery (or similar framework).
⢠Experience in Gradle(preferred) or Maven.
⢠Experience in Jenkins.
⢠Experience in Apache Tomcat (or similar application server).
⢠Excellent communication and didactical skills.
⢠Good level of English.
ļ¼ Represents a Plus
⢠Groovy
⢠JEE (Servlets)
⢠Jasper Reports,
⢠OpenUI5
⢠Basic knowledge of JSF
Skills
⢠Good in problem analysis and judgment ā you evaluate the impact of architectural decisions, actions, choices, risks and updates and their impact on the organization.
⢠Autonomous in executing tasks, preparation of advice, and decision making about the implementation.
⢠Persistent ā you deal with conflicts of interest and obtain a good and acceptable end solution.
⢠Communicative and persuasive ā you can document in a comprehensive way to non-IT colleagues the decisions taken.
Benefits
⢠Youāll be working for European projects and deal with European culture.
⢠Youāll have possibility to permanent placed on-site in Europe.
⢠Youāll be working with motivated people, that love creating products that our customers love.
⢠Youāll be continuously growing both as an individual and as a professional, by learning on the job.
⢠Youāll have the change of both solving reliability issues, but also coding reliability from the inception to running the product. As we strive in automating toil away, youāll work on more and more complex topics.
⢠Youāll have the opportunity to participate in various initiatives or working groups with the goal of enriching and streamlining our landscape.


Headquartered in Silicon Valley, Gupshup is a global leader in cloud messaging, enabling businesses to build engaging conversational experiences, seamlessly across 30+ messaging channels, using a globally available cloud API.
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Gupshup handles over 4.5 billion messages per month and has processed over 225 billion messages, enabling over 36,000 businesses to engage nearly a billion users across channels including SMS, WhatsApp, Facebook Messenger, Twitter, WeChat, Viber, Slack, Android RCS, Mobile App and Mobile Web.
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Gupshup offers a comprehensive product portfolio that includes an easy to use omni-channel messaging API, advanced bot building platform and mobile marketing tools. Gupshup has also forged strategic partnerships with Facebook, WhatsApp, Google and Cisco to offer innovative mobile messaging solutions with broad reach.
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You could log on to https://www.gupshup.io/developer/home">https://www.gupshup.io/developer/homeĀ for more information.
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Location: Mumbai (Goregaon East )
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Roles and Responsibilities:
- Experienced in Java and associated technologies.
- Should have worked with highly scalable web applications
- Good debugging capability
- Should be able to search through logs on server and narrow down to root cause of functional issue from stack trace orĀ performance issue from logs of latency of different components.
- Product development experience in agile environment will be a big plus though not mandatory.
- Highly Tech Savvy and hands-on. Good exposure into design patterns
- Good understanding of OOPS concepts.
- Experience of working with open source technology and tools.
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Regards,
Tina Dsouza


