
Job Description:
We are looking for a skilled and enthusiastic Java Developer to join our development team. The ideal candidate should have solid experience in Java and should also be familiar with Kotlin for backend development. You’ll be responsible for designing, developing, and maintaining high-performance, scalable applications.
Key Responsibilities:
- Design, develop, and maintain efficient, reusable, and reliable Java code.
- Work on Kotlin-based backend applications as per project requirements.
- Develop RESTful APIs and backend services.
- Ensure the best possible performance, quality, and responsiveness of applications.
- Collaborate with cross-functional teams to define, design, and ship new features.
- Identify bottlenecks and bugs, and devise solutions to these problems.
- Participate in code reviews and contribute to team knowledge sharing.

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Experience: 3 to 5
Location: Bangalore
Wissen Technology is now hiring for a Senior 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 to 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 Us:
At Wissen Technology, we deliver niche, custom-built products that solve complex business challenges across industries worldwide.
Founded in 2015, our core philosophy is built around a strong product engineering mindset—ensuring every solution is architected and delivered right the first time. Our commitment to excellence translates into delivering 2X impact compared to traditional service providers. How do we achieve this? Through a combination of deep domain knowledge, cutting-edge technology expertise, and a relentless focus on quality.
We don’t just meet expectations—we exceed them by ensuring faster time-to-market, reduced rework, and greater alignment with client objectives. We have a proven track record of building mission-critical systems across industries, including financial services, healthcare, retail, manufacturing, and more.
Wissen stands apart through its unique delivery models. Our outcome-based projects ensure predictable costs and timelines, while our agile pods provide clients the flexibility to adapt to their evolving business needs. Whether it’s AI/ML for unstructured data processing, cloud enablement, or data engineering, Wissen leverages its thought leadership and technology prowess to drive superior business outcomes. Our success is powered by top-tier talent. Our proprietary Interview Ninja platform ensures we hire the best, building high-performing teams that deliver unmatched results.
Today, Wissen Technology has a global footprint with 2200+ employees across offices in the US, UK, UAE, India, and Australia. Our mission is clear: to be the partner of choice for building world-class custom products that deliver exceptional impact—the first time, every time.
Website : www.wissen.com
Job Responsibilities
✓ Perform the role of Technical Lead on assigned projects to drive solution design (especially backend) and API services development.
✓ Be the thought leader and champion for above mentioned technologies.
✓ Drive technical analysis for new projects including planning and driving proof-of-concepts, if needed.
✓ Drive tasks related to backend development by providing architectural and technical leadership to mid-tier and database developers.
✓ Conduct peer reviews as the lead into Git to confirmed that developed code meets acceptable standards and guidelines.
✓ Work closely with the rest of the leads, mid-tier development, front-end developers, database developers, etc. to ensure end-to-end integrity of the solution being developed.
✓ Work closely with the rest of the tech leads and senior engineering leadership team to ensure reuse where applicable to increase productivity and throughput.
✓ Conduct technical interview to staff open positions in the backend team.
✓ Delegate work and assignments to team members
✓ Collaborate with their team to identify and fix technical problems
✓ Analyze users' needs and then finding applications to serve them
✓ Drive assigned tasks related to SOC 2 certification and ensure compliance to defined controls for areas under lead’s purview.
✓ Guiding their team through technical issues and challenges
✓ Prepare Technical design documents which would help the team to understand the technical flow
✓ Active participation in customer calls especially discussions related to Technical/Architectural and provide inputs.
Required Experience:
✓ Backend Lead around 14 years of experience
✓ Server less Computing Architecture
✓ NodeJS, MySQL, Jenkins, Python, GitLab Technologies
✓ Good knowledge of AWS Cloud
✓ Full cycle AWS implementation experience
✓ Project experience in development and maintenance support for AWS web service and Cloudbased implementations
✓ Experience leading teams of up to 10 + professionals
Ability to manage multiple tasks and projects in a fast-moving environment
Educational Qualifications:
Engineering graduate or B. Tech/MCA with relevant major subjects like Computer Science
Designation: Java Back End Developer
- Strong in Java , Spring Boot, ver.x (Microservices)
- 5+ year’s software engineering experience working with large scale applications and projects.
- Knowledge of best practice software development methodologies and coding standards.
- General knowledge of public cloud infrastructure and data solutions (e.g. AWS)
- Broad experience designing and developing scalable, resilient, performant applications:
- Distributed systems
- Microservices design and implementation
- Experience working on, and deploying, large scale systems in Java
- Experience with relational DBs like MySQL, SQL Server or Oracle.
Your tool box :
Exp: 4+ Strong C/C++/C#/.net Core development skills with a good understanding of object-
oriented and multi-threaded design.
Strong background of computer science fundamentals (data structures, algorithms)
Passionate to learn and explore new technologies and demonstrates good analysis and
problem-solving skills.
Good written and verbal communication skills, should be a quick learner and a team player.
B.E. /B-Tech (CS/IT) • MCA/M.E./M-Tech (CS/IT)
Big Plus [ Mastering one or more of below ]:
Network troubleshooting skills [ TCP/IP, SSH, HTTPS ]
Hands on Kubernetes and Cloud environment
Hands On experience on UNIX or LINUX operating systems.
Strong with VoIP technologies [ SIP and RTP ]
Good understating of SOA architecture
Desired Skills
- Expereience in C#, Web API, .NET (Core and Framework), SQL Server.
- Leading a team designing and implementing software solutions using the Microsoft Azure stack primarily, with scope to also work with open-source technologies.
- Designing, building, testing, automating, monitoring, and supporting significant components within a modern digital service platform.
- Helping to build and lead an effective, cross-functional squad practicing agile ways of working (Scrum, DevOps, Design Sprints) in tight collaboration with local and remote teams
- Microservices and server less architecture with service fabric, functions and API apps, service bus.
- Visual Studio, Visual Studio Code and GIT, Azure CLI (Cloud Shell), Azure DevOps.
- Expertise in with Azure Active Directory, VNETs, NSGs, ASGs, OAuth and OpenID Connect, Azure traffic manager, CDN, App Gateway and load balancers.
- Hands on experience of executing cloud native projects in Azure with DevOps
Develop back-end server that includes business logic linked to various data storage solutions
including database.
Design back-end server system by using technology appropriate for server environment.
Develop and maintain Rest services for Samsung Pay Develop RESTful services that are highly
scalable, available, maintainable
Skills :
Excellent Programming Skills
Strong problem-solving abilities
Analytical skills, and troubleshooting
Good understanding of algorithms, data structures, and performance optimization
methodsHands-on with Design, Coding, Debugging, and TestingExcellent Communication &
Interpersonal Skills, Team Player.
Programming Skills:
C/C++ and/ Java Jquery, Spring, Struts.Hibernate, Web Services, Web Security,
- java 8+
- springcore
- springboot
- MongoDB
- Angular
- Agile
TamilNadu candidates can apply
Experince:4 to 8 years.
Out of many tools and technologies, we use Java, MongoDb, Cassandra, Redis, Twem, Netty extensively for our back-end development.
- Leading the entire Backend platform for a product portfolio.
- End to end delivery new features.
- Evolving the architecture for performance and scalability.
- Design, develop and own components of a highly scalable, distributed web services platform.
- Constantly strive to improve software development process and team productivity.
- Mentor and train team members
- Lead module development independently
Required background, Knowledge, Skills and Abilities
- 5.5+/ 7+ Years of experience in a scalable product/ecommerce organization·
- Excellent Java skills, Understanding of Spring framework & MVC approach
- Strong knowledge of Performance optimization and caching techniques.
- Strong Object Oriented Programming concepts, data structure and algorithms
- Experience in developing scalable, fault-tolerant, distributed backend services
- Experience with prevalent design patterns and advanced system designing
- Good experiences with databases and Schema design. We heavily use NoSQL databases
- Strong Problem Solving skills
Building highly-scalable and secure payments platform
Primary owners of one or more components of the platform and will drive
innovation in your area of ownership
Working with various product teams gathering requirements and adding capabilities
Working with some of the smartest people in the industry and will have ample
opportunity to learn and grow
Using cutting-edge cryptography to secure payments beyond industry standards
Deriving actionable insights by mining TBs of data
Building low-level infrastructure that aims to push the boundaries of network
performance
Participating actively in recruitment and nurturing of engineers as awesome as you.
What do we look for?
If you spend time cracking NP hard problems rather than cracking nuts, you are the
most laziest person and automates everything, you appreciate beauty of code
(bonus if you can sing “Finite simple group of order 2”), you should apply in t=0
Good understanding of Databases
Good understanding of networking (especially with HTTP)
Good understanding of OS concepts
2-4 years of experience
Should have hands on development experience with Object Oriented Programming
(Java is highly preferred) on a large scale system
Understands and showcase ownership of the products
Good with concepts of scaling and worked with distributed systems
Review and influence new evolving design, architecture, standards and methods
with stability, maintainability and scale in mind
Identify patterns and provide solutions to class of problems
Research, evaluate and socialize new tools, technologies, and techniques to improve
the value of the system
Be able to multi-task, prioritize and handle dependencies with minimal oversight









