
- Core Java 5.0 and above
- Extensive experience in developing enterprise-scale n-tier applications for the financial domain.
- 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, preferably Sybase database
- Good knowledge of multi-threading and high volume server side development
- Experience in sales and trading platforms in investment banking/capital markets
- Basic working knowledge of Unix/Linux.
- Strong written and oral communication 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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2. Spring boot/ Spring or any variations of Spring
3. MySQL
4. Mentions of, distributed systems, scalable systems
5. Mentions of ElasticSearch, Kafka or Redis
6. NoSQL databases like Cassandra/DynamoDB/MongoDB/Hbase etc
7. Mentions of Handling scale/scalable systems
9. Mentions of AWS or Amazon web services.

Job responsibility The Lead Developer contributes, to create a customer’s solution, in the building phase of the software development lifecycle. The Software Engineer is responsible for performing the detailed design of application and technical architecture components and classes in accordance to the specification provided by the Solution Architect, for coding of SW components, and for the early testing phases (component testing), and system testing support
Should have handled and leaded a team of front end and back developer and deliver projects on time.Hands on experience in Java, Python, scripting
- Design, implement, deploy and support web-based applications and web services using server technologies stacks that include Java, MySQL
- Experience in Java/J2EE using web frameworks Play or Spring boot, REST API Development and ORM (JPA, Hibernate eBean etc.)
- In depth knowledge of Design patterns and Data structures
- Databases - MySQL, Oracle, SQL
- Solid understanding of concepts like Web Services, SOA, REST APIs, Message Queue, Caching, Distributed/Scalable Architecture
- Secure application development best practices, such as OWASP
- Document and maintain all design documents and involve in review process.
- Experienced problem solving and debugging skills.
- Good verbal and written communication and interpersonal skills
- Experience in Agile methodology is added advantage
- Knowledge of Cloud Knowledge /Azure
- Must know about Unix knowledge
- experience in Elastic search
Job Summary:
We are looking for a highly skilled and experienced Java Backend Developer with 4.5+ years of hands-on experience in backend development, system design, and API integration. You’ll play a key role in designing and building high-performance backend systems that are scalable, secure, and reliable. As a core member of the engineering team, you’ll collaborate closely with product owners, architects, and other developers to deliver quality solutions.
Responsibilities:
- Design and develop backend components, REST APIs, and microservices using Java and Spring Boot.
- Contribute to the architectural decisions and system design discussions.
- Write clean, efficient, and testable code following best practices.
- Optimize application performance, scalability, and reliability.
- Integrate third-party APIs and work with external systems.
- Participate in code reviews, mentor junior developers, and support the team’s technical growth.
- Work closely with DevOps to support CI/CD pipelines and deployments.
- Troubleshoot and resolve complex issues in production and non-production environments.
- Keep up with industry trends and advocate for best practices in backend development.
Required Skills:
- 4.5+ years of hands-on experience in backend development with Java (Java 8 or above).
- Strong expertise in Spring Framework (Spring Boot, Spring MVC, Spring Data).
- Experience designing and consuming RESTful APIs and working with microservices architecture.
- Solid understanding of relational and NoSQL databases (e.g., MySQL, PostgreSQL, MongoDB).
- Proficient with version control systems like Git and tools like Maven or Gradle.
- Familiarity with Docker, containerization, and cloud platforms (AWS/GCP/Azure).
- Experience with unit testing and integration testing (JUnit, Mockito, etc.).
- Good knowledge of software design principles, data structures, and algorithms.
- Excellent problem-solving skills and attention to detail.


Django Python framework
PostgreSQL database
- Coordinating with development teams to find out the needs of the application.
- Using the Python programming language to create scalable code.
- Application testing and bug fixing.
- Creating the back-end elements.
- Utilising server-side logic to incorporate user-facing components.
- Integrating storage methods for data.
- Design and implementation of high-performance, low-latency applications.
- Working in concert with front-end programmers.
- Upgrading the functionality of current databases.
- Creating digital technologies to track online activity.

Experience:
The candidate should have about 1+ years of experience with design and development in Java/Scala. Experience in algorithm, data-structure, database is mandatory.
Required Skills:
- Java or Scala
- Extensive experience in developing web applications. Should possess good Oops knowledge and be aware of enterprise application design patterns.
- Should have the ability to analyze, design, develop and test complexity of spark job.
- Basic working knowledge of Unix/Linux.
Good To have: -
- Python
- Distributed Computing
Designation : Technical Lead/ Architect – Java
Experience: 6+ yrs
Location: Noida
Skills- Must have: Architect exp, design, Strong on Java, cloud, latest tech stacks, hands-on, problem-solving, communication skills, client handling, sprint planning & execution, micro services, spring
Tech Skills Required:-
-7+ years of design/implementation/consulting experience with distributed applications.
- Experience in infrastructure architecture, database architecture, and networking
- Experience architecting/deploying/operating solutions
- Experience migrating or transforming legacy customer solutions to the cloud
- Working experience on Spring boot / similar frameworks using Java8/11
- Exposure to REST services, web sockets, SOAP services.
- Databases MySQL, PostgreSQL, NoSQL like MongoDB, Cassandra
- Queuing Systems like Rabbit MQ, ActiveMQ, Kafka
- Implemented MicroServices using design patterns like service discovery, circuit breakers, API Gateway, open-tracing.
- Experience in Security standards like OAUTH2.0, UMA, OpenID-connect.
- Hands-on knowledge on container tools like docker, podman
- Excellent in Problem-solving & solutioning
- Excellent communication skills
- Working knowledge on either of the Top 3 cloud solutions
Good to have:-
- gRPC
- Kubernetes/Openshift
- Pivotal Cloud Foundry, PKS
- GitHub profile with commit history.
- Certification equivalent to Solutions Architect.
Job Description:
- Must have experience of 1 – 6 years.
- Experience in Java/J2EE platform.
- Experience in web application development with JSP, Servlet, Spring Boot, Hibernate
- Knowledge of MySQL database.
- Developed REST and SOAP web services..
- Experience in version control system and build tool
- Must have completed BE/MCA/M.Sc/MTech.

-Should be strong in complex problem solving, Data
Structure & Algorithms.
-Should be proficient in more than one Programming
language i.e Java, Node, Golang, etc.( Oops Languages & Concepts) and related frameworks.
-Should be comfortable with SQL, NOSQL databases.
-Should have comfortable writing Unit tests.


