Senior Java Developer at Wissen Technology · Mumbai · 5 - 8 years · Profitable · Posted 19 Dec 2025

Job Description below:
Required Skill Set
Senior Software Engineer- Java
- Experience in Core Java 5.0 and above, Data Structures, OOPS, Multithreading, Algorithms, Collections, Unix/Linux
- 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-volume server-side development
- Basic working knowledge of Unix/Linux
- Excellent problem solving and coding skills in Java
- Strong interpersonal, communication and analytical skills.
- Should have the ability to express their design ideas and thoughts.
Job Brief-
· Understand product requirements and come up with solution approaches
· Build and enhance large scale domain centric applications
· Deploy high quality deliverables into production adhering to the security, compliance and SDLC guidelines

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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Job Summary:
We are seeking highly skilled Java Developers with hands-on experience in developing
enterprise-scale applications, preferably within the financial services domain. The role
requires expertise in Core Java, Microservices, and high-performance server-side
development.
Key Responsibilities:
• Design, develop, and maintain enterprise-scale n-tier applications in the financial
domain.
• Develop complex, low-latency, client-facing applications with a focus on performance
and scalability.
• Work with Microservices architecture, Data Structures, OOPs, Algorithms, and
Multithreading.
• Perform high-level and low-level design for critical applications.
• Collaborate with cross-functional teams to define, design, and deliver new features.
• Ensure best practices in coding, architecture, and application performance.
Requirements:
• Strong experience in Core Java 5.0 and above, Spring, and CXF.
• Extensive experience in enterprise application design patterns and architecture.
• Strong development experience with RDBMS (preferably Sybase).
Experience: 7+ years
Location: Mumbai
Mode of Work: Hybrid
• Hands-on expertise in multithreading and high-volume server-side applications.
• Experience in sales and trading platforms in investment banking/capital markets.
• Basic working knowledge of Unix/Linux.
• Excellent problem-solving and coding skills in Java.
• Strong interpersonal, communication, and analytical skills.
• Ability to express design ideas and collaborate effectively with teams
Minimum 3+ Years of Core Java Programming with Collections Framework, Concurrent Programming, Multi-threading (Good knowledge in Executor service, Fork joins pool and other threading concepts)
? Good knowledge of the JVM with an understanding of performance and memory optimization.
? Extensive and expert programming experience in JAVA programming language (strong OO skills preferred).
? Excellent knowledge on collections like, Array List, Vector, LinkedList, HashMap, Hash Table, HashSet is mandate.
? Exercised exemplary development practices including design specification, coding standards, unit testing, and code-reviews.
? Expert level understanding of Object-Oriented Concepts and Data Structures
? 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.
Experience: 3-5 years
Wissen Technology is now hiring for a Java Developer (with Azure) - 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.
JOB DESCRIPTION
Experience: 3-9 years
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. - 3-9 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.
JOB DESCRIPTION
Experience: 4+ years
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+ 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.
JOB DESCRIPTION
Experience: 4-9 years
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. 4-9 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.
Strong Backend Software Engineer Profile with strong Core Java expertise
2
Mandatory (Experience 1): Must have 2+ years of hands-on backend software engineering experience.
3
Mandatory (Experience 2): Must be able to design and implement moderately complex features with minimal supervision, and contribute to system design and architecture discussions.
4
Mandatory (Experience 3): Must be comfortable owning business-critical production components — maintaining connectors, handling customer escalations, security fixes, bug fixes, and building new features end-to-end.
5
Mandatory (Tech skill 1): Must have strong, current Core Java depth with solid, clear coding fundamentals — Java is the primary skill for this role. Deep hands-on core engineering strength matters more than framework knowledge.
6
Mandatory (Tech skill 2): Must have strong core backend engineering fundamentals and experience with scalable systems (connectors handle millions of events/data points daily across customers).
7
Mandatory (Tech skill 3): Must have microservices experience.
8
Mandatory (AI Fluency 1): Must have demonstrated, hands-on use of AI coding assistants (Claude, GitHub Copilot, Cursor, etc.) as a core part of the daily workflow — scaffolding, writing tests, reviewing code, and debugging.
9
Mandatory (AI Fluency 2): Must be able to write precise, effective prompts for production-quality output, decompose tasks so AI assistance is effective, and critically evaluate AI-generated code for correctness, security, and standards before merging.
10
Mandatory (Company): Must come from a product company background (B2B SaaS or B2C both acceptable).
11
Mandatory (Note1): This is a 3-month contract role. Candidate must be comfortable with the contract engagement and able to join immediately (urgent — onboarding within ~a week)
12
Mandatory (Note 2): Must be based in or near Chennai, Bangalore, or Ahmedabad (Chennai: hybrid, Tue & Thu in office)
13
Preferred (Backend): Hands-on Python experience is a plus.
14
Preferred (Database): Hands-on database / JDBC integration experience in a production environment.
We are looking for Java Developers with 5+ years of experience for Bangalore and Mumbai locations.
Key Requirements:
- 5+ years of experience in Java development
- Strong hands-on experience in Core Java
- Strong understanding of Data Structures, Algorithms, and Problem Solving
- Good experience in Multithreading / Concurrency
- Exposure to or awareness of AI / LLM concepts
- Candidate should be an Immediate Joiner
- Must be available for a Face-to-Face interview
- Candidate should be open to attending the interview in Mumbai or Bangalore
Locations:
- Mumbai
- Bangalore
Position Title: Software Engineer
Position Type: Full Time
Department: Research and Development
Reports to: First Level Manager, Indian Development Centre.
Company Background:
Affiliated with US Group companies, CGLIA Solutions LLP is an innovative Software Product Development Organization developing high available, highly secure, cloud-based enterprise software products catering to the needs of Large Research facilities, University medical centres, Hospitals, Pharma companies in US and worldwide ultimately leading to the development of life saving medications.
CGLIA is known for helping Software professionals to unleash their creativity, turning them into world class professionals, and building their career.
Job Summary:
As a Software Engineer, you assist in the design development of new products for our renowned customers worldwide.
Enhancing the existing applications by identifying the areas of improvements, making recommendations and designing and implementing them.
Ideal candidate should be a self-starter and, should have excellent problem-solving skills and passionate about developing high quality innovative products exceeding the customer expectations and needs. A keen interest for quality at every stage of development is a must.
Looking for a highly motivated individual who is looking to grow their career in a challenging environment.
Responsibilities:
- Participating in discussion with Product Management teams and Generating the Requirement Specification document that has covers both the functional and Non-functional requirements.
- Participating in discussion with the technical teams and generating the design documents.
- Develop code and update the existing code, ensuring that all the code meets the agreed upon requirements.
- Perform intensive testing of all new and existing programs to ensure they are free of errors and function as intended
- Work closely with the cross functional teams like UI Developers, Business Analysts and Management teams.
- Cultivate an environment of collaboration, commitment, accountability, and creativity and deliver products and services on time with quality delight the customer.
- Actively participating in the hiring process, for Organization growth.
- Updates job knowledge by studying latest development tools, programming techniques, and participating in professional organizations.
- Willing to undertake additional tasks and responsibilities as may be reasonably expected of the role and as necessary in order to achieve the objectives of the organization.
Qualifications: (Education, Experience, Skills and Knowledge)
· Bachelor’s Degree in Computer Science or Information Technology or any equivalent degree.
· At least 4 plus years of hands on experience in developing cloud-based software.
· Expertise in developing cloud based distributed applications and must have experience in object-oriented design.
· Strong hands on experience in using Java, Hibernate, Spring technology stack (Spring MVC, Spring Data, Spring Cloud, Spring Batch, Spring security etc.) along with open source technologies.
- Experience building web and mobile applications using frontend technologies Angular (Angular 1/Angular 2), Bootstrap, Material Design, UX/UI, JavaScript, HTML5, and CSS.
· Experience on any one of databases like MySQL, MS SQL, PostgreSQL, and Oracle.
· Exposure with more than one of the Software Development Methodologies.
· Knowledge on the Code Static Analyzer tools like SonarQube, PMD etc. and, DevOps Tools.
· Expertise in Security related to Web Applications and mobile applications. and other open source and commercial tools.
· Ability to work independently and along with teams.
· Impeccable written English skills, and Oral communication skills along with outstanding interpersonal skills.
· Eagerness and willingness to learn new technologies.
We're hiring an SDE 2 to build reliable, high-scale services and own features end-to-end. You'll turn ambiguous problems into clean designs, write well-tested code, and raise the engineering bar on the team.
Mandatory skills
• 5+ years shipping production software
• Strong data structures, algorithms and problem-solving
• Hands-on system design for scalable services
• Proficiency in Java or Python
• Building and consuming RESTful APIs
• Solid SQL and version control (Git)






