Java Developer at Wissen Technology Ā· Remote only Ā· 5 - 15 years Ā· ā¹15L - ā¹30L / yr Ā· Profitable Ā· Remote only Ā· Posted 17 Sep 2025

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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Applications on this job are not being reviewed actively. You may apply but please follow up with the company via other channels too.
Role Type
Backend Engineering (Java + Distributed Systems/API)
Role Summary
We are looking for an experienced Java Backend Engineer who has strong hands-on expertise in multithreading (concurrency), distributed systems, transactional processing, and backend design. The role requires someone who can design, develop, and optimize services running in high-volume, low-latency enterprise environments.
Key Responsibilities
Ā· Design and implement scalable backend services using Java (8/11/17) and Spring Boot.
Ā· Build high-performance systems leveraging multithreading, concurrency controls, and asynchronous programming.
Ā· Work on distributed system components such as messaging, caching, service discovery, and consistency models.
Ā· Implement robust transaction handling using ACID principles, isolation levels, distributed transactions, and rollback mechanisms.
Ā· Develop RESTful and event-driven APIs following best practices for security and reliability.
Ā· Participate in architecture discussions, design reviews, and technical planning.
Must-Have Skills
Ā· Strong Java 8+ (Streams, functional programming, Collections)
Ā· Spring Boot, Spring MVC, Spring Data
Ā· Concurrency & multithreading (executor frameworks, locks, synchronization, concurrent collections)
Ā· Transaction handling: JPA/JDBC, Spring transactions, isolation levels
Ā· Distributed systems: microservices communication, Kafka/RabbitMQ, caching, resilience patterns
Ā· System design: scalability, load balancing, fault tolerance
Applications on this job are not being reviewed actively. You may apply but please follow up with the company via other channels too.
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- Strong proficiency in Java, Spring Boot & Microservices
- Hands-on experience with Apache Kafka and MySQL
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Applications on this job are not being reviewed actively. You may apply but please follow up with the company via other channels too.
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We are looking for an experienced Core Java Developer with strong expertise in Java programming, backend development, and microservices architecture. The candidate should have hands-on experience in developing scalable applications, handling multithreading and concurrency, and working with Spring Boot.
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Experience: 7ā10 Years
Location: Bangalore
Job Description:
We are looking for an experienced Java Backend Developer with strong hands-on experience in building scalable, high-performance backend applications.
Candidates should have expertise in Java 8+, Spring Boot, Microservices, multithreading, concurrency, and transaction management. Experience in REST APIs, Kafka/RabbitMQ, SQL, Spring Transactions, JPA/JDBC, and distributed systems is required.
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Mandatory Skills: Java 8+, Spring Boot, Microservices, Multithreading, Concurrency, Transaction Management, SQL, Kafka/RabbitMQ.
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Java Developer with Scala
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Strong hands-on experience in Java development.
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Greetings from NAM Info Pvt Ltd,
Job Title: Senior Java Spring Boot & Microservices Developer
Experience: 7+ Years
Primary Skills: Java 8/10, Spring Boot, Microservices, REST APIs, Kafka
Job Summary
We are looking for an experienced Java Spring Boot & Microservices Developer with 7+ years of hands-on experience in designing, developing, and deploying scalable enterprise applications. The ideal candidate should have strong expertise in Java 8/10, Spring Boot, Microservices architecture, RESTful APIs, Kafka, multithreading, collections, and coding best practices.
Key Responsibilities
- Design, develop, and maintain scalable applications using Java 8/10 and Spring Boot.
- Build and implement Microservices-based applications following industry best practices.
- Develop and integrate RESTful APIs with internal and external systems.
- Implement asynchronous and event-driven solutions using Apache Kafka.
- Write clean, efficient, maintainable, and reusable code.
- Optimize application performance using Java Collections, Multithreading, and Concurrency concepts.
- Troubleshoot, debug, and resolve production issues.
- Participate in code reviews and ensure adherence to coding standards.
- Collaborate with cross-functional teams including Product, QA, DevOps, and Business stakeholders.
- Contribute to architecture discussions and technical design decisions.
Required Skills
- 7+ years of hands-on experience in Java development.
- Strong proficiency in Java 8/10 features (Streams, Lambda Expressions, Optional, Functional Interfaces, etc.).
- Excellent understanding of Java Collections Framework.
- Strong knowledge of Multithreading and Concurrency.
- Hands-on experience with Spring Boot.
- Solid experience in developing REST APIs.
- Strong practical experience in Microservices architecture.
- Hands-on experience with Apache Kafka.
- Good understanding of object-oriented programming (OOP), design patterns, and SOLID principles.
- Strong coding, debugging, and problem-solving skills.
- Experience with Git and Maven/Gradle.
- Knowledge of SQL databases and API testing tools such as Postman.
Preferred Skills
- Experience with Docker and Kubernetes.
- Familiarity with CI/CD pipelines.
- Experience working with cloud platforms such as AWS, Azure, or GCP.
- Knowledge of monitoring and logging tools.
- Exposure to Agile/Scrum development methodologies.
Mandatory Technical Expertise
- Java 8/10
- Spring Boot
- REST APIs
- Microservices
- Apache Kafka
- Multithreading
- Collections Framework
- Strong Coding & Problem-Solving Skill
Applications on this job are not being reviewed actively. You may apply but please follow up with the company via other channels too.
Company Name ā Wissen Technology
Group of companies in India ā Wissen Technology & Wissen Infotech
Work Location ā Whitefield, Bangalore
While you may already know about Wissen and the company history, here is a quick rundown for you.
Ā
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 has 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.
- Wissen Technology has been certified as a Great Place to WorkĀ®.
- Wissen Technology has been voted as the Top 20 AI/ML vendor by CIO Insider in 2020.
- Over the years, Wissen Group has successfully delivered $650 million worth of projects for more than 20 of the Fortune 500 companies.
- We have served client across sectors like Banking, Telecom, Healthcare, Manufacturing, and Energy. They include likes of Morgan Stanley, Goldman Sachs, MSCI, StateStreet, Flipkart, Swiggy, Trafigura, GE to name a few.
Job Description ā Software Engineer (Java Spring Boot + Angular)
Location: Whitefield, Bangalore (Work from Client Office)
Experience: 4ā8 years
Role Overview
We are hiring Software Engineers with strong experience in Java Spring Boot and Angular to work on enterprise-level applications at the client office in Whitefield, Bangalore.
Key Responsibilities
- Develop and maintain backend services using Java, Spring Boot, REST APIs.
- Build interactive front-end modules using Angular.
- Collaborate with the lead, QA, and product team for high-quality delivery.
- Understand requirements, participate in design discussions, and contribute to technical solutions.
- Write clean, maintainable, and scalable code.
- Perform unit testing and integration testing.
- Fix bugs, optimize code, and improve application performance.
Technical Skills Required
- Strong coding skills in Java 8+, Spring Boot, RESTful API development.
- Experience working with Angular.
- Good understanding of Microservices concepts.
- Strong knowledge of SQL/NoSQL databases.
- Experience with version control (Git), CI/CD pipelines, and build tools.
- Familiarity with cloud services is a plus.
Soft Skills
- Good communication and teamwork skills.
- Ability to work independently and handle tasks with minimal supervision.
- Strong debugging and problem-solving skills
Applications on this job are not being reviewed actively. You may apply but please follow up with the company via other channels too.
Position Title : Software Engineer
Position Type: Full-Time
Department: Research & Development
Reports To: First Level Manager,
Company Background:
Affiliated with US Group companies, CGLIA Solutions LLP is an innovative Software Product Development organization developing highly available, highly secure, cloud-based enterprise software products catering to the needs of leading Research Facilities, University Medical Centers, Hospitals, and Pharmaceutical companies across the globe, ultimately contributing to the development of life-saving medications.
CGLIA is committed to helping software professionals unleash their creativity, build world-class enterprise applications, and accelerate their careers in a collaborative and innovation-driven environment.
Job Summary :
As a Software Engineer (Java), you will be responsible for designing, developing, and maintaining scalable, secure, and high-performance cloud-based enterprise applications. You will work closely with Product Management, Business Analysts, QA, DevOps, and cross-functional engineering teams to deliver innovative software solutions that exceed customer expectations.
The ideal candidate should be a self-starter with excellent analytical and problem-solving skills, strong expertise in Java backend technologies, and a passion for developing high-quality software. This role also provides an opportunity to mentor junior engineers, participate in technical discussions, and contribute to architectural decisions.
Key Responsibilities
- Participate in requirement analysis and collaborate with Product Management to understand functional and non-functional requirements.
- Contribute to technical design discussions and prepare technical design documentation.
- Design, develop, test, and maintain scalable backend applications using Java and Spring Boot.
- Develop and maintain RESTful APIs and Microservices.
- Write clean, reusable, maintainable, and well-documented code following industry best practices.
- Optimize application performance, scalability, reliability, and security.
- Perform unit testing, code reviews, debugging, and production issue resolution.
- Collaborate with QA, DevOps, UI, and Product teams throughout the software development lifecycle.
- Mentor junior engineers and actively contribute to knowledge sharing within the team.
- Stay updated with emerging technologies, frameworks, and software development best practices.
- Participate in technical interviews and hiring activities to support organizational growth.
- Undertake additional responsibilities as required to achieve project and organizational objectives.
Qualifications (Education, Experience, Skills & Knowledge)
- Bachelor's degree in Computer Science, Information Technology, or an equivalent discipline.
- 5+ years of hands-on experience in Java application development.
- Strong expertise in Core Java (Java 8/11/17) and Object-Oriented Programming concepts.
- Extensive experience with Spring Boot, Spring MVC, Spring Data JPA, Spring Security, and Hibernate.
- Strong experience designing and developing RESTful APIs and Microservices.
- Experience working with relational databases such as MySQL, PostgreSQL, Oracle, or MS SQL Server.
- Good understanding of Data Structures, Algorithms, Design Patterns, and Multithreading.
- Angular, Bootstrap, Material Design, HTML5, CSS, JavaScript
- Hands-on experience with Git, Maven/Gradle, and Agile/Scrum development methodologies.
- Experience with code quality tools such as SonarQube and static code analysis.
- Exposure to Docker, Kubernetes, CI/CD pipelines, and cloud platforms (AWS, Azure, or GCP) is preferred.
- Knowledge of messaging systems such as Kafka or RabbitMQ is an added advantage.
- Strong analytical, troubleshooting, and debugging skills.
- Excellent written, verbal, and interpersonal communication skills.
- Ability to work independently and collaboratively in a fast-paced product development environment.
- Eagerness to learn and adopt new technologies.








