Java Developer Engineer at Wissen Technology · Bengaluru (Bangalore) · 3 - 5 years · Profitable · Posted 19 Jun 2025

JOB DESCRIPTION
Experience: 3-5 years
Location: Bangalore
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. - 3-5 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
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
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Role Overview:
We are seeking a motivated .NET Developer with around 2 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.
• 2 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)
Role: .Net Developer
Experience Level: 4 to 9 Years
Work location: Mumbai, Bangalore, Trivandrum (Hybrid)
Key Responsibilities:
● Develop and maintain scalable .NET microservices for diverse client projects
● Implement robust Web APIs with proper error handling, validation, and security
● Write comprehensive unit and integration tests ensuring high code quality
● Design portable, efficient solutions deployable across different client environments
● Collaborate with cross-functional teams and client stakeholders
● Optimize application performance and implement caching strategies
● Implement security best practices for enterprise applications
● Participate in code reviews and maintain coding standards
● Support deployment and troubleshooting in client environments
Must have skills:
Core Technical Expertise:
● .NET Framework/Core: 4+ years of production experience with .NET Core 3.1+ / .NET 5+ and C# 8+
● Frameworks: Strong hands-on experience with ASP.NET Core Web API, Entity Framework Core
● REST API Development: Proven experience designing and implementing RESTful web services, middleware
implementation
● Design Patterns: Solid understanding and implementation of SOLID principles, Dependency Injection, Repository
pattern
● Testing: Experience with unit testing (xUnit, NUnit, MSTest), mocking frameworks (Moq), integration testing
Microservices & Deployment:
● Containerization: Hands-on Docker experience for packaging and deploying .NET applications
● Microservices Architecture: Understanding of service decomposition, inter-service communication, distributed
systems
● Abstraction & Portability: Configuration management (appsettings.json, IConfiguration), environment-agnostic design
● Package Management: NuGet package management, understanding of project dependencies
Good to have have skills:
Advanced Technical:
● Advanced Frameworks: .NET 6/7/8, Minimal APIs, gRPC, SignalR for real-time communication
● ORM & Database: Advanced Entity Framework Core, Dapper, database migrations
● Orchestration: Kubernetes, Docker
● Cloud Platforms: Azure (App Service, Functions, Service Bus), Alibaba, or GCP services
● Message Brokers: Azure Service Bus, RabbitMQ, Apache Kafka
● Databases: Both SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, Cassandra)
● API Gateway: Azure API Management, Kong API Gateway
Development & Operations:
● CI/CD pipelines (Azure DevOps, Jenkins, GitHub Actions)
● Monitoring & Observability (Application Insights, Serilog, Prometheus)
● Security best practices (HTTPS, CORS, input validation, secure coding)
● Background Services (Hosted Services, Hangfire, Quartz.NET)
Rocketlane is building a unified workspace that enables customers to collaborate on onboarding projects. Rocketlane streamlines work collaboration and communication with customers across projects, both real-time or async. It features visibility, consistency, customer experience, collaboration, and productivity. It was launched in 2020 and is based
in Walnut, California, United States.
About the Role-
Thinking big and executing beyond what is expected. The challenges cut across algorithmic problem solving, systems engineering, machine learning and infrastructure at a massive scale.
Reason to Join-
An opportunity for innovators, problem solvers & learners. Working will be Innovative, empowering, rewarding & fun. Amazing Office, competitive pay along with excellent benefits package.
Requiremets and Responsibilities- (please read carefully before applying)
- The overall experience of 3-6 years in Java/Python Framework and Machine Learning.
- Develop Web Services, REST, XSD, XML technologies, Java, Python, AWS, API.
- Experience on Elastic Search or SOLR or Lucene -Search Engine, Text Mining, Indexing.
- Experience in highly scalable tools like Kafka, Spark, Aerospike, etc.
- Hands on experience in Design, Architecture, Implementation, Performance & Scalability, and Distributed Systems.
- Design, implement, and deploy highly scalable and reliable systems.
- Troubleshoot Solr indexing process and querying engine.
- Bachelors or Masters in Computer Science from Tier 1 Institutions
About the company
Currently we are hiring for a VC backed startup a fast growing fintech startup based in Bangalore.
It is a super app to digitize India’s 50M+ sales agents where they can get access to relevant products & services, receive training through interactive videos on “how to sell, what to sell and whom to sell”, and earn money. For businesses, we help them save a huge effort in managing and training these agents and help them increase their reach to every nook and corner of the country.
India is a trust deficit market which cannot be accessed through Internet Marketing on Facebook and Google as the majority of the customers need training, push, motivation and a primer on why and how to use a product.
To solve this problem, traditional industries like BFSI, Telecom, Automobile, Real Estate etc. use 50M+ frontline sales executives to drive distribution. We believe that not just for these traditional industries but also for emerging companies in FinTech, EdTech etc these agents will play a pivotal role in accessing trust deficit customers.
They have grown to a 100,000+ agent network across India (growing 50% MoM) & are funded by tier1 VC’s and angels in India.
Summary of Role
As a lead of the consumer products software engineering division, you will take an active role in the definition and evolution of standard practices and procedures. You will be responsible for defining and developing software for tasks associated with the developing, designing and debugging of the software applications.
Responsibilities:
- Overlook development of all consumer products in JAVA
- Lead a team of 4-5 developers
- Optimize components for maximum performance across a vast array of web-capable devices and browsers
- Focus on code maintainability and performance of application
- Provide technical advice and assists in solving programming problems
- Continuously create new and interactive features that would help to improve user experience and user engagement.
- Assist with troubleshooting of issues as needed
- Lead the design and architecture of software solutions
- Assist in developing and maintaining continuous integration pipelines
Required Skills for this Role:
- JAVA
- Spring/Spring Boot
- Hibernate
- Linux
- REST
- Kafka
- Mysql
- AWS
- ELK Stack (Elasticsearch)
- CI/CD Pipelines
- Team Leadership experience of at least 3 year
Qualifications:
- 4+ years of experience in Java based technologies
- Experience in designing databases and system architecture
- Experience in building products from scratch at well funded start-ups
- Team Lead/Team Manager experience of at least 3 years
- Design and develop features using Java, Spring, and Hibernate
- Ability to design database schema, develop views and stored procedures
- Maintain existing software systems by identifying and
Correcting software defects.
- Review and analyse business requirements and provide technical software defects.
Key Skills:
- Good understanding of algorithms, data structures & design patterns
- Thorough understanding of core Java, Spring framework
- Experience with Spring Boot to bootstrap applications
- Good understanding and working experience with RESTful web services
- Knowledge of modern authorization mechanisms, such as JSON Web Token and OAuth2 - Familiarity with code versioning tools such as Git, etc.
- Self-starter who can think outside of the box, and come up with a solution to resolve and mitigate complex problems
- Experience working in an Agile development environment using methodologies like Scrum and tools like JIRA, Confluence, etc Experience.Comfortable with MYSQL,Mongodb
Role & Responsibilities:
- Design and develop features using Java, Spring, and Hibernate
- Ability to design database schema, develop views and stored procedures
- Maintain existing software systems by identifying and correcting software defects
- Review and analyze business requirements and provide technical feasibility and estimates
- 2-4 years of work experience developing Java-based backend applications. Around 1 year of work experience e using Spring Boot, Spring Cloud and Microservices.
Skills- java , core java, J2EE, jee, spring, REST, Tomcat
Interested candidates can apply for the same
Deep expertise and hands on experience in Core java
∙ Hands-on experience with at least 2 years in Spring, Hibernate & Restful web services.
∙ Hands-on experience with at least 3 years in GUI development using Angular/React
, HTML & JavaScript. Added advantage if worked on Angular 5 and above, NodeJS, Bootstrap, jQuery.
∙ Clear understanding of Software Development life cycle and process Oriented. Would be great if worked on Agile or Continuous Delivery (CD) based projects before.
∙ Good fundamentals in Core Programming, JDBC, Object Oriented design & Design patterns
∙ Should have exposure to Oracle SQL. Any other DB apart from Oracle is also fine, provided the fundamentals of RDBMS are clear. Good to have experience in writing Sqls, stored procedures and functions.
∙ Experience in creating & executing unit tests using test driven approach with JUnit or any other equivalent.










