Java Developer

Key Responsibility Areas:

• Design, build and deliver Enterprise software solutions.
• Write code with standards and conventions and follow best practices.
• Encourage and lead innovation and solid lifecycle processes.
• Collaborate with development teams on work definition, estimation and prioritization
• Lead and grow as a professional software engineer.
• Full ownership of product deliveries and mentoring junior team members.
• Preparing curriculum to train junior developers for Java Web Development
• Strong client interactions to provide excellent Quality of Service.
• Owning the code base and making sure all code is reviewed and is of very high quality.
• Write and modify coding conventions and standards documents for all development

Required Skills:

Technologies/Frameworks – 

• Core Java, J2EE, 
• Spring Core and Spring MVC, Sprint Boot, Spring Security, 
• JDBC, Hibernate, RESTful APIs, SOAP WebServices
• Knowledge of JavaScript, JQuery, AJAX, HTML5, and CSS3, Angular is added advantage
• Junit or Mockito frameworks
• Maven, Git
• Knowledge Data Structures, 
• SQL, MySQL 
• Designing relational database schemas
• Basics of AWS, Cloud, Microservices

• Must have strong knowledge and experience in Agile based software development methodologies. Knowledge of an Agile tool like Jira.
• Strong knowledge of working in Integrations of 3^rd party APIs and creating the new APIs.
• Must have good knowledge of creating Flow diagrams, UMLs and all the required documentations.
• Domain Preference
• BFSI, FinTech

Experience: 5 TO 8

Location: MUMBAI

Wissen Technology is now hiring for a Java Developer - MUMBAI 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. - 5 TO 8 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.

Skill set Key words

Java17, Java Spring Boot, Kubernetes/AKS/Docker(Knowledge), Microservices, (MongoDB/DynamoDB)

Role and Resposbilities :

•  Hands on experience in Java back-end development and skills with Spring-boot framework

•  Real life experience with Continuous Delivery principles and related tools (Kubernetes, AKS, Docker)

•  Expertise with Microservices design

•  Understanding of the Design Patterns, Architectural Blueprints, UML and Application Design

•  Experience in stateful application and web sessions

•  Experience with MongoDB, DynamoDB

•  Excellent communication skills and an ability to work in a team

Must have,

- Fundamental of Python(Data types in python, scope of variable, asynchronous programming)
- Should be able to code in Python

- Basic Understanding of Database

- API designing

- Problem Solving skills

- Fundamentals of storage, caching

Good to have,

- AWS Knowledge,

- Python Framework(Django, Flask)

- Knowledge on Message Broker, Caching

- SQL and no-SQL database

Role Description

The SDE 2/3 will be part of the engineering/development team in Games24x7 Pvt. Ltd. and will be responsible for taking ownership of the core products of the company. The applicant must have good communication, interpersonal, technical and analytical skills in order to take part in the collaborative and cooperative development process that delivers the high quality software we use to provide the best possible playing experience to our players. He/she must be an expert in the Java programming language and needs to be familiar with popular IDEs, tools and scripting languages on the Linux operating system. Familiarity with an RDBMS, preferably PostgreSQL, is essential to succeed in this position.

General Accountabilities/Job Responsibilities:

• Participate in the requirements analysis, design, development and testing of applications.
• Write clean and efficient code and stay hands-on with it.
• Write high level code, code review, unit testing and deployment.
• Ensure practical application of design principles with a focus on the user experience, usability, template designs, cross browser issues and client server concepts.
• Contribute to the development of project estimates, scheduling, and deliverables.
• Work closely with QA team to determine testing requirements to ensure full coverage and best quality of product.
• Take up the opportunities to mentor and guide junior team members in excelling their jobs.

Requirements:

• B.E. /B.Tech. in Computer Science or MCA from a reputed university.
• 3-12 years of experience in software development, with emphasis on JAVA/J2EE Server side programming.
• Hands on experience in core Java, multithreading, RMI, socket programing, JDBC, NIO, webservices and design patterns.
• Knowledge of distributed system, distributed caching, messaging frameworks, ESB etc.
• Experience in Linux operating system and PostgreSQL/MySQL/MongoDB/Cassandra database
• Additionally, knowledge of HBase, Hadoop and Hive is desirable.
• Familiarity with message queue systems and AMQP and Kafka is desirable.
• Experience as a participant in agile methodologies.
• Excellent written and verbal communication skills and presentation skills.
• This is not a fullstack requirement, we are looking for a purely backend expert.

We are looking for a Backend Developer who has 4-6 years of experience in designing, developing, and implementing backend services using Python and Django.

- Responsibilities-

- Design highly scalable, testable code and follow Test Driven Development methodology 

- Able to write well-organized, modularised code with test cases.

- Contribute to the design and architecture of our backend APIs and deployment of microservices

- Ensure adherence to engineering best practices and maintain the overall quality of our codebase.

- Work with the product team to translate powerful ideas into everyday business value.

- Skills-

- Back-end programming language: Python

- Familiarity with Django or Flask framework

- Familiarity with AWS and Elastic Search

- Experience in SQL and NoSQL databases with an insight into various data modeling use cases

- Experience with system & unit testing

- Familiarity with containerized deployment

- Proficiency with Git

- Sound with data structures and algorithms and have a good understanding of design patterns, software architectures

• Build large scale enterprise applications.
• Responsible for providing deep technical expertise in designing and delivering end to end high performance, scalable & flexible solutions using Java and Open Stack technologies including Mobility/Responsive Web apps, APIs, application & data Integration, scalable databases, DevOps, Cloud Computing.
• He/ She would be also responsible to experiment, explore and demonstrate application of new technologies by means of conducting quick prototypes to solve business problems. Work with the direction from Solution Architect/ Enterprise Architect and co-create solutions with rest of the IT delivery teams