
Java Developer – Job Description
Wissen Technology is now hiring a Java Developer 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 consultancy.
Required Skills:
• Exp. - 4 to 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.

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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We are looking for a Staff Engineer - Python to join one of our engineering teams at our office in Hyderabad.
What would you do?
- Own end-to-end delivery of backend projects from requirements and LLDs to production.
- Lead technical design and execution, ensuring scalability, reliability, and code quality.
- Build and integrate chatbot and AI-driven workflows with third-party systems.
- Diagnose and resolve complex performance and production issues.
- Drive testing, documentation, and engineering best practices.
- Mentor engineers and act as the primary technical point of contact for the project/client.
Who Should Apply?
- 5+ years of hands-on experience building backend systems in Python.
- Proficiency in building web-based applications using Django or similar frameworks.
- In-depth knowledge of the Python stack and API-first system design.
- Experience working with SQL and NoSQL databases including PostgreSQL/MySQL, MongoDB, ElasticSearch, or key-value stores.
- Strong experience owning design, delivery, and technical decision-making.
- Proven ability to lead and mentor engineers through reviews and execution.
- Clear communicator with a high-ownership, delivery-focused mindset.
Nice to Have
- Experience contributing to system-level design discussions.
- Prior exposure to AI/LLM-based systems or conversational platforms.
- Experience working directly with clients or external stakeholders.
- Background in fast-paced product or service environments.
Exp-Min Year
Location Kolkata-On site & Remote
Sal-Nego
JD
Hands on design and in depth development experience in Microsoft NET
· technologies including C#, ASP NET MVC, Web API, Entity Framework and LINQ
· knowledge of MS SQL Server 2014 above
· Experience with version control systems GIT
· Experience creating and consuming web services including REST JSON
· Skills (Technical / Specialist Skills)
· Proficiency in .NET Development with .NET Framework 4.5 or later, Asp.net MVC,
· C#, Web API, LINQ, Entity Framework, SQL Server 2014 or above, jQuery.
About the Role
We are actively seeking talented Senior Python Developers to join our ambitious team dedicated to pushing the frontiers of AI technology. This opportunity is tailored for professionals who thrive on developing innovative solutions and who aspire to be at the forefront of AI advancements. You will work with different companies in the US who are looking to develop both commercial and research AI solutions.
Required Skills:
- Write effective Python code to tackle complex issues
- Use business sense and analytical abilities to glean valuable insights from public databases
- Clearly express the reasoning and logic when writing code in Jupyter notebooks or other suitable mediums
- Extensive experience working with Python
- Proficiency with the language's syntax and conventions
- Previous experience tackling algorithmic problems
- Nice to have some prior Software Quality Assurance and Test Planning experience
- Excellent spoken and written English communication skills
The ideal candidates should be able to
- Clearly explain their strategies for problem-solving.
- Design practical solutions in code.
- Develop test cases to validate their solutions.
- Debug and refine their solutions for improvement.
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Design and implement APIs and backend systems to support the functionality of our live stream shopping mobile application
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Integrate with third-party services and APIs to enable features such as payment processing, real-time inventory updates, and user authentication
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Collaborate with the front-end development team to ensure smooth and seamless integration between the front-end and backend systems
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Monitor and optimize the performance and scalability of our backend systems to ensure a seamless user experience
-
Write clean, maintainable, and well-documented code
-
Stay up-to-date with industry best practices and new technologies
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Bachelor's or Master's degree in Computer Science or a related field
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3+ years of experience in backend development
-
Strong knowledge of at least one programming language, such as Java, Python, or Ruby
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Experience with RESTful APIs and microservices
-
Experience with database design and SQL
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Experience with cloud computing platforms such as Amazon Web Services or Google Cloud Platform
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Excellent problem-solving and communication skills
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Experience with AWS
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Experience with live stream technology or e-commerce platforms
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Experience with agile development methodologies
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Experience with containerization and orchestration platforms such as Docker and Kubernetes
We are looking for a Java/Full stack Developer with experience in building high-performing, scalable, enterprise-grade applications.
You will be part of a talented software team that works on mission-critical applications. Java developer roles and responsibilities include managing Java application development while providing expertise in the full software development lifecycle, from concept and design to testing.
Java developer responsibilities include designing, developing and delivering high-volume, low-latency applications for mission-critical systems.
Experience : 2+ years
Location : Work from Home (full time)
Notice Period : 0 to 30 days ( Immediate joiners are preferred)
Roles & Responsibilities :
(This role encompassing both API engineering using Java stack and web development. Experience in designing, developing, testing and successfully deploying critical and complex projects.)
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Contribute in all phases of the development lifecycle
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Write well designed, testable, efficient code
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Ensure designs are in compliance with specifications
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Prepare and produce releases of software components
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Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review
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Build reusable code and libraries for future use
Required Skill set :
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Java background with a minimum of 2 years experience in Java technologies.
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Experience in designing and developing application backend using frameworks like Spring Boot, Spring MVC, Jersey, JPA, Hibernate, SQL, Linux, JSON, XML, OAuth etc.
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Add on : Experience with frontend technologies like CSS,HTML,Javascript, NodeJS/Express, Angular, React, ExtJS, Vue is preferred
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Experience with both SQL and NoSQL database systems and writing SQL queries
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Strong experience building, designing, and consuming Restful web services.
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Exposure of Cloud Infrastructure - AWS and Alibaba Cloud
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Excellent understanding of ORM and Database concepts
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Experience with developing unit test code using JUNIT, Power Mock/EasyMock/Mockito etc.
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Experience with Git, Maven and CI/CD pipelines to deploy on Cloud applications
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Experience & knowledge on Micro services Architecture and API development using Java, spring, Spring Boot
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Experienced in roles conducting requirements gathering, writing user stories, creating application design and using design patterns
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Good knowledge on credentials/secrets management and data encryption techniques
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Good knowledge on coding standards, design patterns, unit testing.
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Good hands - on BitBucket/Github is preferred.
Designing and implementing high quality software project in JAVA, SQL, J2EE and other java technologies
Software prototype
System architecture
Software design documentation
Test plan and test cases
Technical documentation.
Sr. Backend Developer | Disruptive HR Tech Platform | GGN
Job Description:
- Developing new user-facing features.
- Writing clean, reusable, high-quality, high-performance, maintainable code.
- Encouraging innovation and efficiency improvements to ensure processes are productive
- Ensuring the training and mentoring of the team members
- Ensuring the technical feasibility of UI/ UX designs and optimizing applications for maximum speed.
- Researching and applying new technologies, techniques, and best practices
- Writing blog posts and having a strong record on StackOverflow and similar sites
What you need to have:
- Bachelors/ Masters in Computer Science or a related field
- Experience with web technologies and microservices architecture
- Java, Spring framework
- MySQL, Mongo, Solr, Redis,
- Kubernetes, Docker
- Excellent teamwork skills, flexibility, and ability to handle multiple tasks.
- Experience with API Design, ability to architect and implement an intuitive customer and third-party integration story
- Ability to think and analyze both breadth-wise (client, server, DB, control flow) and depth-wise (threads, sessions, space-time complexity) while designing and implementing services
- Exceptional design and architectural skills
- Experience of cloud providers/platforms like GCP and AWS
- Experience in working with micro-services, containers, or big data technologies
- Experience with high-performance websites, orchestrating data pipelines, ETL frameworks
Experience: 4 to 7 years










