
| • Experience of over 5+ years with solid understanding of object-oriented design • Proficient in Java, J2EE and related technologies. • Experienced in using Spring Boot, messaging systems. • Good understanding of relational database performance concepts and usage of ORM frameworks such as Hibernate • Expert understanding of the object-oriented design and programming concepts • Strong Knowledge on Data Structures, Algorithms and Collections. • Solid experience building applications on top of RESTful APIs. • Knowledge/experience with Spring MVC • Stroing knowledge in developing and executing automated unit, functional and integration tests • Good communication and analytical skills. • Strong trouble shooting skills. |

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🧠 Job Description: Senior Java Developer (8+ Years Experience)
Location: Mumbai, India
Employment Type: Full-time, Hybrid mode of working
Company: Wissen Technology
Website: www.wissen.com
🚀 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.
- 🌍 Offices in US, UK, India, Australia, Mexico, and Canada
- 👥 1700+ Wissen Technology professionals; part of a 4500-strong Wissen Group
- 🏆 Great Place to Work® Certified
- 🧠 Featured as a Top 20 AI/ML Vendor (CIO Insider, 2020)
- 📈 Achieved 400% revenue growth in 5 years (with zero external funding)
- 💼 Delivered $1B+ worth of projects to 50+ Fortune 500 companies
Learn more about our work and thought leadership:
📄 Articles by Wissen | 💼 LinkedIn
About the Role
We are seeking an experienced Senior Java Developer with 8+ years of hands-on expertise in building scalable, high-performance applications. The ideal candidate will have strong fundamentals in 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 using Core Java and Spring frameworks
- Apply advanced Object-Oriented Programming (OOPS) principles to deliver clean, modular, and reusable code
- Implement and optimize multithreaded applications for high-performance systems
- Work with SQL databases 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
- Bachelor’s/Master’s degree in Computer Science, Engineering, or related field
- 8+ years of professional experience in Java development
- Strong expertise in Core Java, OOPS, and Multithreading
- Hands-on experience with Spring concepts (Spring Core, Spring MVC, Spring Boot preferred)
- Proficiency in SQL 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
🌟 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.
Mentoring teams to carry forward recognised and optimised solutions, building conducive environments for knowledge transfer and maintaining standards in terms of deliveries form a major part of responsibilities.
Responsibilities
- Design and develop robust scalable database systems
- Design, build and deploy internal applications to support our native technical ecosystem
- Collaborate with Subject-Matter experts to design data-driven modules for analysis
Qualifications
- Bachelor's or Master's degree in Computer Science, Information Systems, Engineering or equivalent
- 3-4 years of experience in Java
Skills
- Expertise in object-oriented programming concepts and data structures
- Strong knowledge of working with XMLs/Jsons
- Experience with large-scale distributed storage and database systems (MySQL, MongoDB, GraphDB)
- Good knowledge of indexing/search libraries like Lucene/Solr/Elasticsearch
- Exposure to Spring MVC architecture and RESTful APIs
- Well-versed with Agile methodology of SDLC
- Good to have: Knowledge of standard DevOps skills like Build tools (Maven/gradle), Continuous integration (Jenkins), Version Control (Github/Gitlab)
We are looking for Middle and Senior level Female Java technologists at Bangalore.
These openings are with a Leading US MNC's Bangalore IDC.
This is an IC role. Need handson candidates only.
- Strong work experience in CORE JAVA
- Proficiency with Algorithms, Data Structures, Multi-threading, OOPS,
- Strong knowledge in areas like Data structures, Algorithms, Core Java & Java Fundamentals, Multithreading, IPC
- Strong knowledge of any OO language (Java, Core Java)
- Experience in database programming, mySQL experience is a plus .
SKILLS/EXPERIENCE :
Job : Senior Developers / Lead Engineer / Architect : 3.5 - 12 Yrs
Location: Bangalore
Technology skill set :
- Required Skills: Core Java, Practical implementation of Object oriented constructs & paradigms, Datastructures, Algorithms, Multi-threading, Collections, Design
Expertise :
- Required: Java Specialists with expertise in implementing object oriented constructs & paradigms in a multi-threaded environment using Core Java .
Responsibilities :
- Responsible for designing complex systems
- Independently act as a technical expert
- Handle multiple tasks at one time
Eligibility Criteria :
- Strong background in Java / Core Java. Hands on in coding.
- Bachelor's degree in computer science or a related field
- Proficient in OOPS, OOAD, Data Structures, Algorithms, Multithreading
- Database programming skill in SQL/Sybase/Oracle is a plus
Job Description:
Software Development Engineer - Backend
Responsibilities
• Writing reusable, testable, and efficient code Develop, Code or modify, test, and
debug application programs of varying degree of complexity.
• Design and implementation of low-latency, high-availability, and performant
applications.
• Integration of user-facing elements developed by front-end developers with server
side logic Implementation of security and data protection.
• Integration of data storage solutions
Skills And Qualifications:
• Experience in design and implementation of low-latency, high availability, high
performance applications capable of handling large scale distributed workloads
Expert in Java, with knowledge of Spring boot and Hibernate framework.
• Experience with Elasticsearch
• Knowledge of user authentication and authorisation between multiple systems,
servers, and environments.
• Experience with relational databases like PostgreSQL/MySQL/Oracle.
• Able to create database schemas that represent and support business processes
Strong unit test and debugging skills
• Proficient understanding of code versioning tools such as Git.
• Understand lean approach with frequent releases and focussed on getting MVPs into
market as early as possible to increase feedback
• Passion for fast-paced and iterative software development
• Fast learner and open to working with new libraries/platforms
Nice to have:
• Experience developing in AWS/Azure/Google Cloud environments
• Solid understanding of Cloud PaaS / IaaS constructs and their APIs Understanding of
security products and secure coding techniques
About the job
We focus on client adoption of disruptive technologies, technology architecture and providing specialized skills related to integration, custom software engineering, testing, application modernization, agile and more. We help our clients with the most complex projects including working in open web platforms, DevOps platforms as well as intelligent Computing and Architecture enhancement.
We are looking for hands on, smart thinking Applications developer to join our fast-growing team of talented professionals. You will have the opportunity to work on large enterprise solutions and deliver solutions that deliver business performance for our customers.
WORK YOU’LL DO
- Design and develop microservices/APIs using either Java/Spring boot, ISTIO, Kubernetes, Docker, CI / CD Pipelines
- You would scale micro services using Kafka or similar messaging systems.
- Collaborate with clients, architects, and application architectures to understand the operational objectives and purpose of the future system integration.
- Understand the points of integration between the different systems and highlight the potential risks associated with the delivery of solutions
- Collaborate with Functional Designers and Developers in order to find best solutions
- Produce detailed functional and technical specifications.
- Assist in producing solutions with threat assessments and associated security awareness.
WHAT WE ARE LOOKING FOR
- 5- 8 years of hands-on experience designing and developing microservices using either Java/Spring Boot
- 3-5 years of experience with system integration
- Minimum of 3 years of relevant experience with API concepts and technologies such as REST, JSON, XML, SOAP, YAML, GraphQL, and Swagger
- Experience developing within agile methodology using CI/CD pipeline
- Experienced in 3-tier, n-tier, cloud computing, microservices architectures and SOA.
- Good knowledge of integration architectures
- Experience supporting and/or implementing complex integration projects
- Excellent client management skills
- Experience with Data modelling would be an asset
QUALIFICATIONS
- Experience of working in an Agile Environment
- Ability to drive design from Stories and Requirements
- Adept at UML, Design Patterns, Reusable Services Development,
- Knowledge on Scaling Microservices










