
Key Responsibilities:
● Design, develop, and maintain high-performance, scalable, and secure backend systems using Java.
● Build and maintain RESTful APIs and microservices to support application functionality.
● Collaborate closely with frontend developers to ensure smooth integration with React/Angular-based frontend systems.
● Work with both relational databases (SQL) and NoSQL databases to design data schemas, optimize queries, and maintain data integrity.
● Leverage cloud platforms (AWS, Azure, Google Cloud) to deploy, monitor, and scale applications.
● Implement and maintain containerization using Docker and Kubernetes (K8S).
● Write unit tests for both backend and frontend code to ensure code quality and reliability.
● Participate in code reviews to maintain code quality standards and mentor junior developers.
● Contribute to a culture of continuous improvement, proposing and driving best practices in backend development, testing, and deployment.
Required Skills And Experience
● Bachelors or Masters in computer science or related fields.
● 5+ years of experience in backend development, with strong expertise in Java (must-have).
● Solid experience with frontend frameworks such as React or Angular.
● Hands-on experience with RESTful APIs, Docker, and NoSQL databases (such as MongoDB, Cassandra, etc.).
● Strong experience with SQL databases (such as MySQL, PostgreSQL, etc.), including database design, optimization, and query writing.
● Familiarity with cloud platforms (AWS, Azure, Google Cloud) and Kubernetes (K8S).
● Experience in writing unit tests and understanding of test-driven development (TDD) principles.
● Strong understanding of Agile/Scrum methodologies.
Nice to Have:
● Exposure to Automation Testing Frameworks (e.g., Selenium, Cypress).
● Experience working in a SaaS (Software as a Service) environment.
● Knowledge of Agile/Scrum methodologies.

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Job Title: Java Developer
Java Developer – Job Description Wissen Technology is now hiring for a Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the industry and need talented software engineers to join our mission and be a part of a global software development team. A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting.
Required Skills: • Exp. - 4 to 14 years.
• 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 clientfacing 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:
Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen hassuccessfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals. 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’. Our team consists of 1200+ 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 offers 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® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider.
We are looking for a highly skilled Backend Developer with expertise in Core Java, Java 8, and Data Structures. The ideal candidate should have experience in Spring Boot, JPA/Hibernate, and Microservices architecture. If you are passionate about backend development and want to work in a dynamic environment, we’d love to hear from you!
Key Responsibilities:
- Develop and maintain backend applications using Core Java and Java 8.
- Design and implement RESTful and SOAP web services.
- Work with Spring Framework, Spring Boot, and JPA/Hibernate for backend development.
- Build and optimize microservices-based architectures.
- Manage databases such as PostgreSQL, MySQL, or Oracle.
- Collaborate with cross-functional teams to deliver high-quality software solutions.
- Write clean, efficient, and scalable code while following best practices.
Requirements:
✅ Strong hands-on experience in Java (Core Java, Java 8) and Data Structures.
✅ Proficiency in Spring, Spring Boot, JPA/Hibernate.
✅ Experience in developing and consuming RESTful & SOAP APIs.
✅ Knowledge of Microservices architecture and best practices.
✅ Database expertise in PostgreSQL, MySQL, or Oracle.
✅ Excellent verbal and written communication skills.
Nice to Have:
- Experience with Docker/Kubernetes.
- Knowledge of CI/CD pipelines and DevOps practices.
- Exposure to cloud platforms (AWS, GCP, or Azure).
We are solving complex technical problems in the financial industry and need talented software engineers to join our mission and be a part of a global software development team.
A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting.
Job Description:
• Experience in Core Java, Spring Boot.
• Experience in microservices.
• Extensive experience in developing enterprise-scale systems for global organization. Should possess good architectural knowledge and be aware of enterprise application design patterns.
• Should be able to analyze, design, develop and test complex, low-latency client-facing applications.
• Good development experience with RDBMS in SQL Server, Postgres, Oracle or DB2
• Good knowledge of multi-threading
• Basic working knowledge of Unix/Linux
• Excellent problem solving and coding skills in Java
• Strong interpersonal, communication and analytical skills.
• Should be able to express their design ideas and thoughts.
About Wissen Technology:
Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen hassuccessfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals.
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’.
Our team consists of 1200+ 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 offers 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® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider.
We are seeking a skilled Java Developer with 5+ years of experience in Java, Camunda, Apache Camel, Kafka, and Apache Karaf. The ideal candidate should have expertise in workflow automation, message-driven architectures, and enterprise integration patterns. Strong problem-solving skills and hands-on experience in microservices and event-driven systems are required.
Essential Skills (Two top
skills)
Java 8
AWS – ECS, SQS
B) Other Information
Educational
Qualifications
Graduate
Experience Mid-level (5+)
Minimum Qualifications:
Java 8 bases web application developer
hands on experience with writing sql queries (RDS)
AWS knowledge like ECS, SQS;
understands CICD and git
webserver – tomcat
uses best practice for code quality, static & dynamic
security scans
Bachelor’s in computer science/Information
Technology or related field
Outstanding at triage or analysis of situations for
production support
Excel with on time delivery with minimal direction
Effective verbal and written communicator
Effective participant of requirements gathering
requirements analysis


Programming expertise in latest technologies including; Java
Expertise in MuleSoft, Maven, Gradle, oAuth2.0, JWT, Spring Boot, Microservice Architecture, Web services (SOAP/ REST), Hibernate.
Expertise in DB (MongoDB, MySQL, PostgreSQL)
Experience in developing Continuous Integration/ Continuous Delivery pipelines (CI/ CD)
Proficiency in AWS, AZURE, Docker, DevOps, Git, Jenkins
Extensive experience in parsing XML and JSON and integration with API/ WS
Well versed in software engineering principles, frameworks and technologies.
Excellent communication and team management skills
Self-directed team player who thrives in a continually changing environment
Strong customer service/client service skills.
Desired Candidate Profile
Experience developing and analysing code for a web-based application
Maintain a flexible work schedule and perform other duties when assigned

- 3+ years of experience with Ruby On Rails.
- Strong Project & Time Management Skills, along with the ability to apply these skills while working independently, or as part of a team.
- Knowledge of blockchain technology, smart contracts and cryptocurrency will be an added advantage
- Experience in fintech domain will be another added advantage
- Bachelor’s degree in computer programming, computer science, or a related field.
- Fluency or understanding of specific languages, such as Java, PHP, or Python, and operating systems may be required.

Job requirements
- A strong engineer with excellent Ruby experience working with Ruby on Rails
- Experience with Node.js
- Experience with SQL/nosql databases(Postgresql, cassandra, MongoDB)
- Experience with REST services and API design
- Experience with building the system for scale
- Experience with version control systems (bitbucket, git etc.)
- Experience working with AWS
- Experience with docker/microservices will be an added advantage
- Knowledge of unit & integration testing
- Knowledge of agile development process, jira
- Strong knowledge of algorithms and Data structures
- Basic understanding of the HTTP protocol
- Demonstrated experience working on application development projects and test-driven development. Experience in writing high quality code
- Knowledge of blockchain technology, smart contracts and cryptocurrency will be an added advantage
- Experience in fintech domain will be another added advantage
- Bachelor’s degree in computer programming, computer science, or a related field.
- Fluency or understanding of specific languages, such as Java, PHP, or Python, and operating systems may be required.
- 3+ years of experience with Ruby On Rails.
- Strong Project & Time Management Skills, along with the ability to apply these skills while working independently, or as part of a team.

