
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.
Connect with the team
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Key Responsibilities:
- Design, develop, and maintain scalable backend applications usingĀ JavaĀ andĀ Spring Boot.
- Build and consume RESTful APIs and ensure secure, reliable API integrations.
- Develop microservices-based architecture and deploy applications in cloud environments.
- Work with cloud platforms such as AWS/Azure/GCP for application deployment and management.
- Write clean, maintainable, and efficient code following best practices.
- Implement CI/CD pipelines and support DevOps practices.
- Optimize applications for performance, scalability, and reliability.
- Collaborate with cross-functional teams including frontend, QA, DevOps, and product teams.
- Participate in code reviews, technical design discussions, and architectural decisions.
- Troubleshoot production issues and provide timely resolution.
Required Skills & Qualifications:
- 5ā10 years of hands-on experience inĀ Java (Java 8 or above).
- Strong experience withĀ Spring Boot, Spring MVC, Spring Data, Spring Security.
- Solid understanding ofĀ RESTful API design & development.
- Experience inĀ microservices architecture.
- Hands-on experience with at least one cloud platform (AWS / Azure / GCP).
- Knowledge of containerization tools likeĀ DockerĀ and orchestration tools likeĀ Kubernetes.
- Experience with relational and/or NoSQL databases (MySQL, PostgreSQL, MongoDB).
- Familiarity with CI/CD tools (Jenkins, GitHub Actions, etc.).
- Strong understanding of Git and version control practices.
- Good understanding of design patterns and object-oriented programming principles.
About You
We are looking for passionate, enthusiastic, and proactive people that want to build their future with us, growing as we grow.
Dot Net candidate with a minimum of 4 years' experience, you are excited by the rare opportunity to work with the latest Microsoft technologies, rebuilding existing proprietary systems from the ground up.
You are a great communicator who makes a positive contribution working within a team to deliver excellent outcomes for Stake Holders.
If this, is you, come and join one of INDIAs fastest growing companies and enjoy both a flexible working environment and a great team culture.
Ā
Role/Core Competencies
- Familiarity with architecture styles And Expertise in Design Principles, Design Patterns, OOPS
- Solid knowledge of C#/.NET Framework knowledge,
- Hands on experience in .NET MVC, LINQ, AJAX, XML, Entity Framework Code First Approach
- Strong Experience in designing and developing the services using Web API.
- Experience in CSS, jQuery, Java Script, HTML5, Bootstrap
- Demonstrated ability to incorporate new technologies and techniques.
- Experience in working with Source Control System like TFS.
- Strong and effective inter-personal and communication skills (verbal and written).
- Knowledge of agile/scrum development processes.
- Working experience in Sql Server.
Ā
Responsibility includes:
- Participation in all stages of a project's SDLC including requirements gathering and documenting, high-level and low-level design, coding, testing, and deploying.
- Execute development tasks on projects and will test to guarantee the technical quality of the solution and handle security vulnerabilities.
- Transforms high-level statements of product feature into software design and implement it.
- Able to perform well in a team and as an individual and must have knowledge of SDLC process with documentation.
- Participation in all stages of a project's SDLC including requirements gathering and documenting, high-level and low-level design, coding, testing, and deploying.
- GUI and User Experience design and implementation in Web based applications with exposure to RESTful Service.
- On the need basis, estimates work efforts to support overall product planning & tracking activity.
- You will execute development tasks on projects and will test to guarantee the technical quality of the solution and handle security vulnerabilities.
Nice toĀ have
- Understanding of Agile
- If you are good in preparing test cases & executing test plans
Ā
Company is a direct to consumer brand in affordable fast fashion space using full stack model to solve for high quality at affordable prices. We leverage in-house manufacturing coupled with strong usage of technology to drive efficiency. Rapidbox is funded by Top-Tier VC firms and
prominent angel investors.
Must Have Skills (Working Experience Needed):
Preferably a Graduate/Postgraduate from a Tier 1/2 college/university.
Core Java
Hibernate and any relational database ā MySQL, Postgres, Oracle.
Redis Caching
Spring
Maven, Git
Ability to thrive in a dynamic environment with changing priorities
Spring
Experience with OO design, design patterns & deep understanding of JVM internals
(multithreading, garbage collection etc.)
Problem solver
Search solutions like ES, Solr
NoSQL data store like Cassandra/Mongo
Kafka
Microservices Architecture, Web services, API development, Enterprise integration
Experience on scalable and distributed systems
Good to have:
Distributed Cache
Performance testing tools - Jmeter, Locust, Gatling
Ecommerce background
ā¢Design and develop distributed, scalable, high availability web services.
ā¢Work independently completing small to Mid-sized projects while
managing competing priorities in a demanding production environment.
ā¢you will be writing reusable and maintainable quality code.
What You'll Bring
ā¢BS in CS (or equivalent) and 4+ years of hands-on software design and
development experience in building high-availability, scalable backend
systems.
ā¢hands-on coding experience is a must.
ā¢Expertise in working on Java technology stacks in Linux environment -
Java, Spring/ Hibernate, MVC frameworks, TestNG, JUnit.
ā¢Expertise in Database Schema Design, performance efficiency, and SQL
working on leading RDBMS such as MySQL, Oracle, MSSQL, etc.
ā¢Expertise in OOAP, Restful Web Services, and building scalable systems
Preferred Qualifications:
ā¢Experience using Platforms such as Drools, Solr, Memcached, AKKA, Scala,
Kafka etc. is a plus
ā¢Participation in and Contributions to Open-Source Software Development and contributions
Greetings from Amazon...!Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā
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It is our pleasure in personally inviting you to apply job with Amazon Development Centre India (ADCI). At Amazon we are inclined to hire people with passion for technology and you happened to be one of the shortlisted candidates. Our business is committed to recognizing potential and creating teams that embrace innovation.
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Please find the Eligible criteria and requirements:
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Job titleĀ Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā :Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā SDE ā II (Software Development Engineer)
Role OpportunityĀ Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā :Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Permanent/Full Time/FTE/Regular
Work LocationĀ Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā :Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Hyderabad/Bangalore/ Gurgaon
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Must Have
- Strong Exposure to Data Structures, Algorithms, Coding, System Design (LLD, HLD, OOAD), Distributed systems, problem solving skills, Architecture (MVC/Microservices), logical thinking.
Amazon (ADCI) - If you are looking for an opportunity to solve deep technical problems and build innovative solutions in a fast paced environment working with smart, passionate software developers, this might be the role for you. Amazonās transportation systems get millions of packages to customers worldwide faster and cheaper while providing world class customer experience ā from checkout to shipment tracking to delivery. Our software systems include services that handle thousands or requests per second, make business decisions impacting billions of dollars a year, integrate with a network of small and large carriers worldwide, manage business rules for millions of unique products, and improve experience for millions of online shoppers. With rapid expansion into new geographies, innovations in supply chain, delivery models and customer experience, increasingly complex transportation network, ever expanding selection of products and growing number of shipments worldwide, we have an opportunity to build software that scales the business, leads the industry through innovation and delights millions of customers worldwide.
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As an SDE, you will develop a deep understanding of our business, work closely with development teams and own the architecture and end-to-end delivery of software components.
About Amazon India:
Amazon teams in India work on complex business challenges to innovate and create efficient solutions that enable various Amazon businesses, including Amazon websites across the world as well as support Payments, Transportation, and Digital products and services like the Kindle family of tablets, e-readers and the store. We are proud to have some of the finest talent and strong leaders with proven experience working to make Amazon the Earthās most customer-centric company.
We made our foray into the Indian market with the launch of Junglee.com, enabling retailers in India to advertise their products to millions of Indian shoppers and drive targeted traffic to their stores. In June 2013, we launched http://www.amazon.in">www.amazon.in for shoppers in India. With http://www.amazon.in">www.amazon.in, we endeavor to give customers more of what they want ā low prices, vast selection, fast and reliable delivery, and a trusted and convenient online shopping experience. In just over a year of launching our India operations, we have expanded our offering to over 18 million products across 36 departments and 100s of categories! Our philosophy of working backwards from the customers is what drives our growth and success.
We will continue to strive to become a trusted and meaningful sales and logistics channel for retailers of all sizes across India and a fast, reliable and convenient online shopping destination for consumers. For us, it is always āDay 1ā and we are committed to aggressively invest over the long-term and relentlessly focus on raising the bar for customer experience in India. Amazon India offers opportunities where you can dive right in, work with smart people on challenging problems and make an impact that contributes to the lives of millions. Join us so you can - Work Hard, Have Fun and Make History.
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Basic Qualifications:
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- 3+ yearsā experience building successful production software systems
- A solid grounding in Computer Science fundamentals (based on a BS or MS in CS or related field)
- The ability to take convert raw requirements into good design while exploring technical feasibility tradeoffs
- Expertise in System design (design patterns, LLD, HLD, Solid principle, OOAD, Distributed systems etc..), Architecture (MVC/Micro services).
- Good understanding of at least some of the modern programming languages (Java) and open-source technologies (C++, Python, Scala, C#, PHP, Ruby etc..)
- Excellence in technical communication
- Has experience in mentoring other software developers
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Preferred Qualifications:
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- BS/MS in Computer Science or equivalent
- Experience developing service oriented architectures and an understanding of design for scalability, performance and reliability
- Demonstrated ability to mentor other software developers to maintain architectural vision and software quality
- Demonstrated ability to achieve stretch goals in a highly innovative and fast paced environment
- Expertise in delivering high-quality, innovative application
- Strong desire to build, sense of ownership, urgency, and drive
- Strong organizational and problem solving skills with great attention to detail
- Ability to triage issues, react well to changes, work with teams and ability to multi-task on multiple products and projects.
- Experience building highly scalable, high availability services
- The ideal candidate will be a visionary leader, builder and operator.
- He/she should have experience leading or contributing to multiple simultaneous product development efforts and initiatives.
- He/she needs to balance technical leadership with strong business judgment to make the right decisions about technology choices.
- He/she needs to be constantly striving for simplicity, and at the same time demonstrate significant creativity, innovation and judgment
- Proficiency in, at least, one modern programming language.
- Experience in SQL or Non-SQL database.
- Strong sense of ownership, urgency, and drive.
- Demonstrated leadership abilities in an engineering environment in driving operational excellence and best practices.
- Demonstrated ability to achieve stretch goals in a highly innovative and fast paced environment.
- Excellent communication, collaboration, reporting, analytical and problem solving skills.
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Good to Have:
- Knowledge of professional software engineering practices for the full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations
- Experience with enterprise-wide systems
- Experience influencing software engineers best practices within your team
- Hands-on expertise in many disparate technologies, typically ranging from front-end user interfaces through to back-end systems and all points in between
- Strong written and verbal communication skills preferred
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Key Points to remember:
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- Strong knowledge of the Software Development Life Cycle methodology
- Technical design, development and implementation decisions on the use of technology in area(s) of specialization.
- Write or modify programming code to suit customer's needs.
- Unit test to assure meets requirements, including integration test as needed.
- Ability to understand and analyze issues and uses judgment to make decisions.
- Strong problem solving & troubleshooting skills
- Strong communication skills
- Responsible for self-development according to professional development plan
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