
š§ Ā Job Description: Senior Java Developer (8+ Years Experience)
Location:Ā Mumbai, India
Employment Type:Ā Full-time, Hybrid mode of working
Company:Ā Wissen Technology
Website:Ā www.wissen.com
š About Wissen Technology
Wissen Technology is a specialized technology consulting firm delivering cutting-edge solutions to global leaders in Banking & Finance, Telecom, and Healthcare. Established in 2015 and part of the Wissen Group (founded in 2000), Wissen has scaled rapidly with impressive impact and recognition.
- š Offices in US, UK, India, Australia, Mexico, and Canada
- š„ 1700+ Wissen Technology professionals; part of a 4500-strong Wissen Group
- š Great Place to WorkĀ® Certified
- š§ Featured as a Top 20 AI/ML Vendor (CIO Insider, 2020)
- š Achieved 400% revenue growth in 5 years (with zero external funding)
- š¼ Delivered $1B+ worth of projects to 50+ Fortune 500 companies
Learn more about our work and thought leadership:
šĀ Articles by WissenĀ | š¼Ā LinkedIn
About the Role
We are seeking an experiencedĀ Senior Java DeveloperĀ with 8+ years of hands-on expertise in building scalable, high-performance applications. The ideal candidate will have strong fundamentals inĀ Java, OOPS, Multithreading, Spring concepts, and SQL, and will play a key role in designing, developing, and optimizing enterprise-grade solutions.
Key Responsibilities
- Design, develop, and maintain complex applications usingĀ Core JavaĀ andĀ Spring frameworks
- Apply advancedĀ Object-Oriented Programming (OOPS)Ā principles to deliver clean, modular, and reusable code
- Implement and optimizeĀ multithreaded applicationsĀ for high-performance systems
- Work withĀ SQL databasesĀ for efficient data modeling, query optimization, and integration
- Collaborate with cross-functional teams to gather requirements and translate them into technical solutions
- Conduct code reviews, troubleshoot issues, and ensure adherence to best practices
- Mentor junior developers and contribute to technical knowledge sharing within the team
- Ensure application scalability, performance tuning, and security compliance
Required Skills & Qualifications
- Bachelorās/Masterās degree in Computer Science, Engineering, or related field
- 8+ years of professional experience inĀ Java development
- Strong expertise inĀ Core Java, OOPS, and Multithreading
- Hands-on experience withĀ Spring conceptsĀ (Spring Core, Spring MVC, Spring Boot preferred)
- Proficiency inĀ SQLĀ and database design (MySQL, Oracle, PostgreSQL, etc.)
- Solid understanding of software development life cycle (SDLC) and Agile methodologies
- Strong analytical, problem-solving, and communication skills
š Why Wissen?
Join a company that combines start-up agility with enterprise stability. Work alongside some of the brightest minds from institutions like MIT, Wharton, IITs, IIMs, and NITs. Be part of mission-critical projects for Fortune 500 giants, and grow in a culture that invests in your future.

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 WorkĀ®. 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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The Senior Adobe Experience Manager (AEM) Developer will lead the design, development, and maintenance of Government of Rajasthanās portal websites built on the AEM platform. This role involves leading technical solutions, performance optimization, security compliance, and guiding the development team.
Key Responsibilities
- Lead the design and development of complex components and templates in Adobe Experience Manager (AEM).
- Manage AEM configurations, workflows, and permissions for multiple portals.
- Develop and integrate custom OSGi bundles, Sling models, and components.
- Ensure performance tuning, caching strategies, and scalability of AEM solutions.
- Handle dispatcher configuration and optimization for content delivery.
- Collaborate with architects and project managers for solution design.
- Ensure compliance with Safe-to-Host and OWASP security standards.
- Mentor junior developers and review their code for quality.
- Integrate with third-party services (Payment Gateway, SMS Gateway, etc.).
- Manage version control (Git) and deployment pipelines (Jenkins).
Required Skills
- 5+ years of experience in Adobe Experience Manager (AEM 6.3 or above).
- Strong expertise in Java/J2EE, OSGi, Apache Sling, JCR (Jackrabbit Oak).
- Hands-on experience with HTL (Sightly), HTML5, CSS3, JavaScript, jQuery.
- Good understanding of Dispatcher, Apache HTTP Server, and performance tuning.
- Knowledge of REST/SOAP APIs and system integration.
- Familiarity with Git, CI/CD tools (Jenkins).
- Excellent problem-solving and team leadership skills.
Preferred Certifications
Adobe Certified Expert (AEM Sites Developer or Architect).
Software Development Engineers will be responsible to participate in all stages of
the software product development life cycle. This will include analyzing system
and user requirements, designing software flowcharts, writing clean Java code,
troubleshooting bugs, and running tests to improve system functionality.
An ideal candidate would be someone who has proficiency in Java technologies,
good analytical skills, the ability to anticipate issues and frame remedial actions,
and excellent teamwork skills.
What will you be doing?
ā Write simple, efficient, and maintainable code.
ā Design, develop, scale and maintain backend services in Java
ā Manage individual priorities, deadlines, and deliverables.
ā Validating the functionality and security of the application.
ā Function well in a fast-paced, rapidly changing environment
ā Ensuring best coding standards and practices to improve and maintain
quality.
ā Meeting with the engineering and product team to discuss project definitions
and goals.
What will you need ?
ā Bachelor/Master degree in CS or related field from a reputed college
ā Sound knowledge of Java technologies.
ā Solid grip on the programming basics like DS and algorithms, OOPS.
ā Understanding & experience with software design pattern, restful APIs and
microservice architecture
ā Experience with software design and application programming.
ā Prior experience in start-ups or health-tech will be a plus
Ā Ā Minimum 3+ Years of Core JavaĀ Programming with Collections Framework, Concurrent Programming, Multi-threading (Good knowledge in Executor service, Fork joins pool and other threading concepts)
Ā
Ā·Ā Ā Ā Ā Ā Ā Ā Good knowledge of the JVM with an understanding of performance and memory optimization.
Ā
Ā·Ā Ā Ā Ā Ā Ā Ā Extensive and expert programming experience in JAVAĀ programming language (strong OO skills preferred).
Ā
Ā·Ā Ā Ā Ā Ā Ā Ā Excellent knowledge on collections like, Array List, Vector, LinkedList, HashMap, Hash Table, HashSet is mandate.
Ā
Ā·Ā Ā Ā Ā Ā Ā Ā Exercised exemplary development practices includingĀ design specification, coding standards, unit testing, and code-reviews.
Ā
Ā·Ā Ā Ā Ā Ā Ā Ā Expert level understanding of Object-Oriented Concepts and Data Structures
Ā
Ā·Ā Ā Ā Ā Ā Ā Ā Good experience in Database (Sybase, Oracle or SQL Server) like indexing (clustered, non-clustered), hashing, segmenting, data types like clob / blob, views (materialized), replication, constraints, functions, triggers, procedures etc.
Job Responsibilities:
* Design, build, and maintain efficient, reusable, and reliable Java code
* Ensure the best possible performance, quality, and responsiveness of the applications
* Identify bottlenecks and bugs, and devise solutions to these problems
* Help maintain code quality, organization, and automatization
* Prepare the technical design of complex technology components
Mandatory Skills:
* Proficient in Java (JDK 1.7) or above JDK 8 preferable, with a good knowledge of its ecosystems with a knack for writing clean, readable Java code, writing reusable Java libraries along with knowledge of concurrency patterns in Java
* Solid understanding of object-oriented programming along with various design and architectural patterns
* Hands on experience with Spring, Spring Boot, JUnit
* Familiarity with concepts of MVC, Microservices, RESTful
Should be in chennai location
Should be able to developĀ
Mandatory Skills:-
⢠Total experience required 1 years in Java Development.
⢠Experience on any one of these databases like MySQL OR MongoDB OR Oracle OR
PostgreSQL will work
⢠Experience in Spring Framework, Hibernate, SpringBoot, REST Web-Services.
⢠Should have experience with designing and understanding DB schema as per the
business requirements.
⢠Should have experience with software design patterns.
⢠Proficient understanding of code versioning tools, such as Git.
Roles and Responsibilities:
⢠The role covers mostly Java Development with the use of SpringMVC and/or Spring
Boot.
⢠Analyse product requirements and design to develop efficient, reusable, reliable, and
scalable software with quality conformance.
⢠Collaborate with the team on architecture, design, code, and configuration reviews.
Desired Candidate Profile
⢠Good communication skills
⢠Good troubleshooting skills, analytical and logical skills
⢠Excellent team spirit and teamwork
⢠Collaboratively work with the team
⢠Good to Have: - Experience in Hibernate ORM, Designing Microservices, Experience
in Swagger and Postman.
1.Java, Spring Boot, Microservices, Spring, Hibernate
2. Handling Large teams
3. Expertise in Technial and People Management.









