
Java GS 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. - 2- 7 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 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: 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 has successfully delivered Java GS 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

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.
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Job Title: Java Developer
Location: Mumbai
Job Type: Full-Time
Experience Level: 4- 8 years
Job Overview:
We are looking for a highly skilled Java Developer to join our development team. As a Java Developer, you will be responsible for designing, developing, and maintaining robust Java applications that meet high standards of performance and reliability. The ideal candidate will have strong analytical skills, excellent problem-solving capabilities, and a deep understanding of Java and its ecosystem.
Key Responsibilities:
- Design, develop, and maintain reliable Java applications.
- Collaborate with cross-functional teams to analyze requirements and translate them into technical solutions.
- Write clean, efficient, and scalable code.
- Develop and integrate APIs and web services.
- Conduct software analysis, testing, and debugging.
- Optimize application performance, scalability, and security.
- Participate in code reviews and contribute to best practices.
Required Skills:
- Proficiency in Java and Java EE (Enterprise Edition).
- Strong understanding of Object-Oriented Programming (OOP) concepts.
- Experience with Spring Framework (Spring Boot, Spring MVC) and Hibernate.
- Familiarity with RESTful API design and development.
- Knowledge of SQL and database management systems like MySQL, PostgreSQL, or Oracle.
- Experience with version control systems like Git.
- Familiarity with build tools like Maven or Gradle.
- Solid understanding of application security, data protection, and performance optimization.
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.

We’re in search of a Back-End Software Engineer that specializes in server-side components. In this role,
you’ll primarily work on Node JS, Mongo DB, Redis, building scalable products and will bring a depth of
knowledge on algorithms and data structures. As a Back-End Software Engineer, on any given day you
might be architecting new features for our customers, refactoring existing code to be more scalable, and
seeing changes through to completion in a live environment.
Key Attributes you need to possess: -
- Prioritization- Should have a strong work ethics and show up on time at sessions with excellent skills
in predicting the amount of time needed to plan, coordinate, and perform on a task or managing their
clients as and when required.
- Quick Learning Ability- You should be an amazing self-learner who has the ability to learn new
technology on their own and are not threatened by new technologies. Someone who has an ability to pull
various bits of information and to process information on the fly with good logical and analytical skills.
- Deep and Broad Technical Experience- Someone who is able to hit the ground because they already
know the right technology.They should be able to meet coding principles and write code that is readable
and commented-on where appropriate.Through incorporating their cognitive abilities and extensive
industry experience, they are able to find optimal solutions easily.
- High-End User Focus-A good programmer does what they are asked to do, while a great programmer
thinks of the end user of the software and works to solve problems within the organization’s
capabilities.Someone who knows the functionality they’re creating is of high value.
-Business Acumen- Should have a great eye for Business acumen as the product build will be exposed to
millions of customers on-brand digital assets hence giving you exposure for handling a large user base in
a live environment.
-Teamplayer- Someone who is able to work in a challenging environment and requires complete
devotion, persistence and learning new things every day. As they will be involved in every fact of the
product development starting from product ideation, Interface design, user experience, analytics, and
engineering.
Typical work week look like:-
- Collaborating with the front-end developers and other team members to establish objectives and design
more functional, cohesive codes to enhance the user experience.
- Design and implementation of scalable applications by using asynchronous programming with
low-latency, high-availability, and performant applications between multiple systems, servers, and
environments.
-Integration of data storage solutions by creating database schemas that represent and support business
processes and also Integrating multiple data sources and databases into one system.
- Building reusable code and libraries for future use.
- Explore technical innovation and propose new solutions as and when required.
- Work with engineers, product managers and senior leadership to turn our product and technical vision
into a tangible roadmap every month.
Our ideal candidate should have:-
- 4+ years of relevant experience in a Tech Startup
- A solid grounding in Computer Science fundamentals (based on a BE/BTech or MS in Information
Technologies/Computer Science)
- Strong proficiency with JavaScript and knowledge of Node.js and frameworks.
- Strong hands on MongoDB and ability to write aggregation queries.
- Basic understanding of front-end technologies, such as HTML5, and CSS3.
- Hands-on on code versioning tools, such as Git, Redis, AWS, Sockets.
What you can expect from company:-
- Passion & happiness in the workplace with great people & open culture with amazing growth
opportunities.
- An ecosystem where leadership is fostered which builds an environment where everyone is free to take
necessary actions to learn from real experiences.
- Chance to work on the cutting edge of technology.
- Freedom to pursue your ideas and tinker with multiple technologies- which a techie would definitely
enjoy!!
If you have outstanding programming skills and a great passion for developing beautiful, innovative
applications, then you will love this job
Job Role: We are seeking a skilled Java Developer to contribute to the development and enhancement renowned banking application, which supports automatic reconciliation and unified data reporting for their clients. This role involves working on high-impact enhancements, data pipeline integration, and platform modernization. The ideal candidate will be a quick learner, self-motivated, and able to ramp up quickly in a fast-paced environment.
Key Responsibilities:
Design, develop, and maintain Java-based applications using Java 17 and Spring Boot.
Implement and manage message routing using Apache Camel.
Develop and monitor data pipelines using Kafka.
Support and enhance existing cloud-native applications.
Work with OpenShift Container Platform (OCP 4) for container orchestration and deployments.
Utilize Jenkins for CI/CD pipeline automation and management.
Collaborate with cross-functional teams to integrate multiple data sources into a unified reporting platform.
Participate in code reviews, unit testing, and performance tuning.
Troubleshoot and resolve production issues in collaboration with operations teams.
Document development processes and system configurations.
Required Skills:
Strong proficiency in Java 17 and Spring Boot frameworks.
Hands-on experience with Apache Camel for message routing and transformation.
Solid experience in Kafka development and monitoring tools.
Good understanding of cloud pipeline architectures and deployment strategies.
Experience working with OpenShift (OCP 4).
Familiarity with Jenkins for CI/CD and automated deployments.
Understanding of cloud deployment platforms (AWS, Azure, or GCP preferred).
Strong analytical and debugging skills.
Ability to learn quickly and adapt to evolving project requirements.
Nice to Have:
Experience in financial services or transaction reporting platforms.
Familiarity with microservices architecture and containerization best practices.
Knowledge of monitoring tools (e.g., Prometheus, Grafana).
- 4+ years JAVA/J2EE experience Spring Services, Spring Security and Rest Api's
- Spring Framework: Core Spring / Spring Boot / Spring MVC ,Rest Service
- JPA/Hibernate, JSON parsing
- Build Tool : Maven
- Apache tomcat
- Database : Any RDMS (preferably Mysql)
- SCM: Git / Bitbucket
- Java 8 Generics, SOLID Design Principle
- Strong experience on Collections Framework and Threading
- Collections: Hashmaps, Concurrent Hashmaps, Treemap, Thread pool
- SSO, PAS, JPA/Hibernate, API Integration Build, MATLAB Integration with Java, Json Conversion.
- Location : PAN India(Preferred Bangalore)
- Early joiners preferred.
• Exposure to latest Technology
• Opportunity working in different platforms
• Rapid Career Growth
• Friendly Knowledge sharing Environment
Criteria:
• BE/MTech/MCA/MSc
• 3+yrs Hands on Experience in TSQL / PL SQL / PG SQL or NOSQL
• Immediate joiners preferred/ Maximum notice period between 15 to 30days
• Candidates will be selected based on logical / technical and scenario-based testing
Note: Candidates who have attended the interview process with TnS in the last 6 months will not be
eligible.
Job Description:
Technical Skills Desired:
- Experience in either of these Relational DB’s MS SQL Server / PostgreSQL / AWS Aurora DB / MySQL / Oracle / NOSQL DBs (MongoDB / DynamoDB / DocumentDB) in an application development environment and eagerness to switch DB.
- Design database tables, views, indexes
- Write functions and procedures for Middle Tier Development Team
- Work with any front-end developers in completing the database modules end to end (hands-on experience in parsing of JSON & XML in Stored Procedures would be an added advantage).
- Query Optimization for performance improvement
- Design & develop SSIS Packages or any other Transformation tools for ETL
Functional Skills Desired:
- Banking / Insurance / Retail domain would be a plus.
- Interaction with a client a plus
Good to Have Skills:
- Knowledge in a Cloud Platform (AWS / Azure)
- Knowledge on version control system (SVN / Git)
- Exposure to Quality and Process Management
- Knowledge in Agile Methodology
Soft skills: (additional)
- Team building (attitude to train, work along, mentor juniors)
- Communication skills (all kinds)
- Quality consciousness
- Analytical acumen to all business requirement
- Think out-of-box for business solution
Work location - Permanent WFH
Experience:-
SDE (Senior Developer Executive)
Experience- 1- 3Yrs
Budget :- 32 LPA Fixed
SDA (Senior developer Associate)
Experience:- 55 LPA Fixed
Skills Required- Java ,Data Structures, Algorithms, Coding, design Patterns, Multithreading.
Candidate from Product Based Background is Preferred.
Immediate joinees would be preferred
JAVA spring boot, Micro services
Node JS
REST API consume and produce
Any DB SQL or NoSQL










