
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 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 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.

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
Role Overview:
We are seeking a motivated .NET Developer with around 3 years of experience to join our backend development team. The ideal candidate should have hands-on experience in C#, ASP.NET Core, and SQL, with a strong understanding of object-oriented programming and API development. You will work closely with product, DevOps, and QA teams to build and enhance backend systems
supporting our trading and fintech platforms.
Key Responsibilities:
• Develop, maintain, and enhance backend applications using .NET Core / ASP.NET MVC.
• Design and implement RESTful APIs for integration with frontend and third-party systems.
• Write clean, scalable, and efficient code following best practices.
• Work with SQL databases (preferably MS SQL Server) to design schemas, write queries, and optimize performance.
• Collaborate with product managers and frontend teams to translate requirements into technical solutions.
• Participate in code reviews, debugging, and troubleshooting production issues.
• Contribute to improving application performance, scalability, and security.
Required Skills & Qualifications:
• Bachelor’s degree in Computer Science, Engineering, or related field.
• 3 years of experience in .NET development.
• Strong proficiency in C# and ASP.NET Core / ASP.NET MVC.
• Experience with Web APIs and RESTful architecture.
• Good knowledge of Entity Framework / LINQ.
• Hands-on experience with MS SQL Server or other relational databases.
• Understanding of OOP principles, design patterns, and software architecture concepts.
• Familiarity with Git or other version control systems.
• Basic understanding of HTML, CSS, and JavaScript (for integration purposes).
Nice-to-Have Skills:
• Exposure to Microservices architecture.
• Familiarity with Message Queues (Kafka, RabbitMQ).
• Knowledge of CI/CD tools and DevOps practices.
• Experience with cloud environments (AWS / Azure).
• Understanding of financial or trading systems is a plus.
Why Join Tradelab Technologies:
• Work on cutting-edge trading and fintech platforms used across the industry.
• Collaborative, growth-oriented environment with exposure to complex backend systems.
• Opportunity to learn from senior engineers and grow into full-stack or system design roles.
• Competitive salary and benefits
Location: Bangalore
Experience: 7-10 years
Job Type: Full-time
Overview:
We are seeking a skilled Java Lead with 7-10 years of experience for our Bangalore office. The ideal candidate will have a strong background in Java development, team leadership, and client-facing roles.
Key Responsibilities:
- Lead a team of Java developers, providing guidance and mentoring to ensure high-quality code and timely delivery.
- Collaborate with clients to understand requirements, present solutions, and manage expectations.
- Design, develop, and maintain complex Java-based applications.
- Ensure the team adheres to best practices in coding, testing, and documentation.
- Manage project timelines, deliverables, and resources effectively.
- Troubleshoot and resolve technical issues, ensuring smooth project execution.
Required Skills:
- Java Development: Extensive experience in Java, including frameworks like Spring and Hibernate.
- Team Leadership: Proven ability to lead and mentor a team of developers.
- Client Interaction: Strong client-facing skills with experience in requirement gathering and solution presentation.
-Project Management: Experience in managing project timelines and resources.
Preferred Qualifications:
- Experience with microservices architecture and cloud platforms.
- Familiarity with agile development methodologies.
A primary source of raw materials for manufacturers globally. A raw material sourcing platform with a mission to be the primary source of raw materials for manufacturers globally. Their cross border supply chain and tech solutions ensures manufacturers have access to the best quality raw materials at the right price.
Job Description
As a Backend Engineer you will be responsible for creating REST APIs which are used to drive the User Interface. Given the nature of the application, these APIs need to be very efficient and high performing.
This requires optimizing queries for faster execution and introducing database changes that may be required. We are looking for individuals with great attention to detail, who are genuine, confident, committed and not only passionate about technology, but excited to work in a fun and friendly start-up environment. T
he ideal candidate will be passionate about technology and GETTING IT DONE.
Responsibilities include:
Develop, test, implement and maintain application software
Take part in software and architectural development activities
Debug application issues and helping support respond to client queries
Participate in application development meetings
Provide accurate estimates, clearly communicate status of tasks and identification of risks
Commitment to accomplishing the task at hand and identify the fastest and most reliable way to solve a problem
Performance tuning of application code at different service levels
Interact with customers of the application and help address issues reported
ESSENTIAL SKILLS / EXPERIENCE REQUIRED
- Bachelor's degree in Computer Science or equivalent
- 1-3 years of experience with Java and Spring frameworks.
- Having good knowledge of a scripting language like python is a plus
- Experience with Spring and Hibernate/ ORM
- Understanding of relational databases and normal forms
- Understanding of NoSQL / RDBMS (Mongo or Postgres) and ability to write optimized and high-performing queries
- Strong understanding of Java concurrency, concurrency patterns, experience building thread-safe code
- Experience building RESTful web services
- Strong written and verbal communication skills
- Strong interpersonal skills and time management skills
- Strong problem-solving and analytical skills
- Experience with GIT as a VCS, Unix-based systems
- Experience with NoSQL Database is a plus Following are a set of 'good to have' skills
- React AWS Bitbucket, JIRA
Responsibilities:
Lead the design and development of sophisticated, high availability, and secured
server-side applications with a primary focus on Golang.
● Collaborate with cross-functional teams to understand requirements, architect
solutions, and deliver high-quality software products.
● Mentor and guide junior engineers, sharing your engineering expertise and best
practices to foster skill development within the team.
● Analyze and optimize performance, scalability, and reliability of existing Golang
applications, making strategic improvements where necessary.
● Design and implement automated unit and integration tests to ensure code quality,
maintainability, and stability.
● Stay up-to-date with the latest advancements in software technologies,
recommending their adoption when appropriate.
● Champion code reviews, architectural discussions, and technical documentation to
maintain high development standards.
● Troubleshoot and resolve complex issues, providing innovative solutions to overcome
challenges.
● Contribute to the recruitment and hiring process by participating in interviews,
evaluating candidates, and providing input on hiring decisions.
Requirements
Bachelor's or Master's degree in Computer Science, or a related field.
● 3+ years of experience in software development, with substantial experience in
Golang and cloud infrastructure.
● Expert-level proficiency in designing and developing high-performance, concurrent
applications with Golang.
● Experience with distributed systems, microservices architecture, and containerization
(e.g., Docker, Kubernetes).
● Solid knowledge of software testing methodologies and tools, including unit testing
and integration testing for Golang applications.
● Demonstrated ability to lead projects, collaborate effectively with teams, and mentor
junior engineers.
● Excellent problem-solving and analytical skills, with the ability to tackle complex
technical challenges.
● Having prior experience in the FinTech domain would be an added advantage.
- 5+ Years Java/JEE development experience in an enterprise.
- 3+ Experience in #Grails Web Framework and #Groovy Language.
- Must have experience integrating Grails code with front-end JavaScript frameworks including Jquery.
- Must have experience working with XML and JSON using Grails, JMS and Web, services, XML, Apache Tomcat, SQL and Unix and GIT.
- Experience with RDMS concepts and SQL.
- Experience with RESTful Web Services.
- Understanding of proper application design techniques and methodologies.
- Proficient understanding of SDLC processes desired – Agile
SaaS (Mandatory)and Java, Spring boot, Azure is good go
Skills Required:
· Strong application development and design experience in highly Scalable enterprise JAVA/J2EE systems.
· Strong experience in complex application design, ability to provide solutions, design Concepts, design patterns.
· Strong understanding of Java best practices, system scalability, and performance tuning.
· Expertise in Spring (MVC, CORE, Boot, JDBC).
· Strong Knowledge of Restful services, XML, JSON are required.
· Having knowledge in Hadoop/Bigdata/ETL/Reporting systems is a plus.
- Exp : 3-15 years
- Java NMS/EMS : Work location : GGN
- Experience in implementation of NMS/EMS applications and good understanding of FCAPS functionalities
- Proficient in Java/J2EE, SpringBoot, SpringCloud, Kafka and REST webservices
- Experience in implementation of micro-services based applications
- Experience in any of the rule engine like Drools and workflow creation like JBPM, Camunda
- Experience in SQL and NoSQL databases, DB schema designing and database accessing using Hibernate JPA
- Experience with SNMP, Netconf, device management, inventory management
- Hands on experience in Wildfly/Jboss App server
- Experience in dev-ops tools like Jenkins, Docker, Kubernetes
- Proficient in Angular, HTML5, CSS, Bootstrap, Typescript, ES6
- Good to have Micro Frontend Architecture exposure
- Experience with tools like Maven, Ant, Git, Sonar, JaCoCo, Karma, Jasmine
- Scripting using Shell, Python, etc
- Must be involved in customer interactions for requirement gathering and solution designing discussions
Job Description
- Contribute in all phases of the development lifecycle
- Understand/learn the existing applications
- Provide support on IT Applications to customers
- Prepare and produce build release
- Strive for continuous improvement, developing well designed and efficient code
- Keep up with changes in technology and propose solutions
- Ensure defect free deliveries by actively participating in quality assurance
Education & Job Qualification
- Good academic qualifications
- Experience in developing web applications using Java, Spring, Hibernate, DWR, JSP
- Knowledge in Oracle Database concepts
- Sound knowledge in the following is a must
o Hibernate
o Spring
o Oracle & MongoDb
o HTML & CSS
o Javascript
o Jquery
o Angular 4
o Node JS
Knowledge of Japer Reports will be an added advantage - Good communication skills and be a good listener
- Problem solving skills
- Willingness to learn and do all development activities including quality assurance
- Team player
About the job
Job Description
We are looking for a Back-End Engineer responsible for managing the interchange of data between the server and the users. Your primary focus will be the development of all server-side logic, definition, and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the front-end elements built by your coworkers into the application. A basic understanding of front-end technologies is therefore necessary as well.
Responsibilities
- Develop and Maintain REST API's
- Integration of user-facing elements developed by front-end developers with server-side logic
- Building reusable code and libraries for future use
- Optimization of the application for maximum speed and scalability
- Implementation of security and data protection
- Design and implementation of data storage solutions
- Follow and encourage Test-Driven Development (TDD) Approach
Skills And Qualifications
- Strong foundation and knowledge about Object-Oriented Design Principles
- Champion of the TDD approach
- Implementing automated testing platforms and unit tests
- Proficient in Python programming language
- User authentication and authorization between multiple systems, servers, and environments
- Integration of multiple data sources and databases into one system
- Management of hosting environment, including database administration and scaling an application to support load changes
- Data migration, transformation, and scripting
- Outputting data in different formats
- Understanding differences between multiple delivery platforms such as mobile vs desktop, and optimizing output to match the specific platform
- Creating database schemas that represent and support business processes
- Proficient understanding of code versioning tools, such as Git
- Understanding accessibility and security compliance









