JOB DESCRIPTION
Nature of Work:
This being an advanced level position in the S/W development team the individual is expected to:
∙ Participate as a team member in all phases of the S/W lifecycle, including the analysis and design of S/W systems.
∙ Participate in a detailed level of coding, code walk – through and unit testing of S/W modules.
∙ Participate in integrated testing of product/ package.
∙ Participate in difficult and typical coding assignments with responsibility of a small module consisting of 3 – 5 members.
∙ Participate in exploration/ feasibility study of products.
∙ Have a thorough understanding of the assigned product/ project.
∙ Participate in generating technical documentation of products/ packages.
∙ Providing technical training to the juniors.
∙ Manage allocated resources, keep compliance with discipline and decorum of the organization.
∙ Keep compliance with Systems and Procedures.∙ Thorough knowledge of current technological trends in Web based Software
∙ Strong Working knowledge of JSF/JSP, Servlets, Spring, Web application development and Core Java
• Working knowledge of working with databases using EJB.
• Knowledge of Bug Tracking tool such as Jira, Bugzilla and source code version control systems (SVN, GIT)
• Knowledge of working in Scrum methodology.
• Good to have knowledge of SonarQube and Web Security Aspects.
• Knowledge of Responsive Front End Development using HTML5, JavaScript, CSS3, JQuery, Ajax and JSON.
• Should be able to write test cases for the feature.
∙ Ability to gather and analyze data & draw logical conclusions
∙ Understanding of company’s vision & goals, business operations∙ Clear and concise oral and written communication skills
∙ Ability to establish and maintain effective work relationships at
all levels
∙ Great passion for S/W development.
∙ Ability to mentor and guide the juniors.
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Job Title: Lead Java Developer
Experience Required: 7+ Years
Location: Mumbai
About the Role
We are seeking a highly skilled Senior Backend Developer with deep expertise in building scalable, high-performance applications. The ideal candidate will have strong hands-on experience with Java, Spring Boot, Microservices, and distributed systems. You will play a key role in designing and optimizing APIs, architecting robust systems, and collaborating with cross-functional teams to deliver innovative solutions.
Key Responsibilities
- Design, develop, and maintain scalable backend systems using Java, Spring Boot, and Microservices architecture.
- Build and optimize APIs for large-scale applications ensuring high performance and reliability.
- Apply clean coding principles, SOLID design patterns, and clean architecture to deliver maintainable and robust code.
- Work with distributed systems technologies (Kafka, ELK, in-memory databases, Cassandra, or similar).
- Write efficient SQL queries and integrate with relational and NoSQL databases.
- Collaborate with product managers, architects, and other developers to define and align on technical decisions.
- Identify and solve complex problems with innovative and scalable solutions.
- Drive best practices in coding standards, system design, and performance optimization.
- Communicate complex technical concepts clearly across teams and stakeholders.
Skills & Qualifications
- 7+ years of experience as a Backend Developer.
- Strong expertise in Java, Spring Boot, Microservices, SQL.
- Significant experience in API design and optimization for enterprise-scale applications.
- Proficiency in distributed systems & related technologies (Kafka, ELK, in-memory DBs, Cassandra, etc.).
- Strong understanding of object-oriented engineering principles (SOLID, clean architecture).
- Excellent problem-solving and analytical skills with the ability to simplify complex concepts.
- Strong communication and collaboration skills, with the ability to influence and align teams.
Roles & Responsibilities
- Participated in requirement analysis, solution design, and technical discussions with business and cross-functional teams.
- Designed, developed, and maintained scalable Spring Boot microservices following RESTful API standards.
- Built and enhanced backend services using Java 8/11/17, Spring Boot, Spring MVC, Spring Data JPA, and Hibernate.
- Developed REST APIs for communication between distributed microservices.
- Implemented Spring Security with JWT/OAuth2 for authentication and authorization.
- Worked with Apache Kafka for asynchronous messaging and event-driven communication between microservices.
- Developed business logic and data processing modules using Scala for high-performance applications.
- Integrated applications with external systems and third-party APIs using REST and SOAP web services.
- Designed and optimized SQL queries, stored procedures, and database schemas in Oracle, MySQL, or PostgreSQL.
- Implemented service discovery, centralized configuration, and API Gateway using the Spring Cloud ecosystem (Eureka, Config Server, Gateway).
- Containerized applications using Docker and deployed microservices on Kubernetes/OpenShift environments.
- Built and maintained CI/CD pipelines using Jenkins, GitLab CI, or similar DevOps tools.
- Performed unit testing and integration testing using JUnit, Mockito, and Spring Test frameworks.
- Monitored application health and performance using ELK Stack, Splunk, Prometheus, or Grafana.
- Identified and resolved production issues, performed root cause analysis, and implemented preventive solutions.
Company Name – Wissen Technology
Group of companies in India – Wissen Technology & Wissen Infotech
Work Location - Bangalore/Mumbai
Java Developer – Job Description
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+ 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:
Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen has successfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals.
Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always ‘first time right’.
Our team consists of 1200+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world.
Wissen Technology offers 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.
We have been certified as a Great Place to Work® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider.
Developer Requirements/Expectations:
- Experience: 5+ Years
- Tech Stack: Core PHP, MySQL, Basic JavaScript, Oracle
- 3rd Party Integration: Payment Gateways (Apple Pay Wallet, Google Pay, Stripe)
- Tools: Trello, Slack, Github
- Soft Skills: Team Work, Excellent Client Communication.
Engagement Type: Full Time, Dedicated
- Work Hours: 8 Hours per day, 160 hours per month
- Shift: 10 AM-7 AM IST (Including Lunch hour)
- Work shifts need to be flexible to accommodate client calls in EST.
Screening Process:
Round 1: Technical
Round 2: Managerial
Location: Ahmedabad (Hybrid)
Java Developer – Job Description Wissen Technology is now hiring for a 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. - 4 to 7 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 clientfacing 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.
1. 3+ years of experience in web development
2. Minimum 2+ years’ experience in Node JS
3. databases-MongoDB
Good to have
- Kubernetes & Dockers and experience with Cloud service APIs (e.g., GCP) are desirable.
- Github CI/CD experience
- Experience in the Real Estate will be a plus
• Work with product team to understand product vision and requirements
• Solve complex technical problems and perform the code reviews for junior team members.
• Produce deliverables at a consistently high rate and with consistently excellent quality
• Work with a team of engineering professionals to ensure the highest quality product delivery
As a member of our team, you will be responsible for insuring the successful launch of many product features.
Key responsibilities
• Work in a product based R&D team and collaborate with other teams to integrate.
• Write code that is of high quality and consistent with our coding standards
• Analyze highly complex business requirements, break the requirements to multiple applications; generate technical
specifications to design or redesign complex software components and applications
• Maintain best practices for development/code changes as needed
• Design and architect software applications
• Conducting code reviews and enforcing the quality standards
• Conducting the daily SCRUM meetings and removing the roadblocks
• Performance testing and tuning for scalability
• Develop quick proof of concepts to set the technical direction for rest of the team.
• Work with Devops and Automation team to develop automation strategy for your application.
Requirements
• Bachelor’s Degree (Masters preferred) in Computer Science or related field
• 3+ years of software development experience on web applications
• Experience in working in an onsite and offshore development model
• Must have hands-on design and development experience in Cloud (GCP/AWS/Azure), Kubernetes, Microservices, Java, J2EE, Spring/Boot, Hibernate, JUnit and Integration with front end via rest interfaces.
• Must have Hands-on experience in Multi-threading, Non-blocking IO, Kafka, JMS
• Strong integration background required. Experience with Microservices, REST, JSON and APIs is required
• Experience with as many of the following is highly desirable: Tomcat, Node.js, XML, XSLT, XPath, Web Services, MongoDB, MYSQL, and query performance tuning
• Experience with code management and continuous integration techniques and tools such as Maven, Gradle, Github, JMeter, Jenkins, NPM etc. is highly desirable
• Experience building complex software systems that have been successfully delivered to customers
• Strong Computer Science fundamentals and working knowledge in data structures, algorithms, problem-solving and complexity analysis
• Knowledge of professional software engineering practices and best practices for the full software development life cycle (SDLC), including coding standards, code reviews, source control management, build processes, testing, and operations
• Proven ability to troubleshoot issues in production including root cause analysis
• Self-directed and capable of working effectively in a highly innovative and fast-paced environment
• Experience with Agile software development in a UNIX/Linux environment
• Experience with system architecture/design
Qualifications
• Passionate about technology and technical challenges of all types excite you
• Eagerness to learn and learn fast, enjoy working in a fast-paced environment
• Ability to develop detailed design and deliver a scalable implementation.
• Mentor developers in analysis, design, coding and unit testing techniques
• Motivated self-starter and team player; you inspire others to achieve great thing
- Candidate should have Good Communication and Presentation Skills.
- Candidate should have very Good Logical and Analytical Skills
- Candidate should have Programmatic and Management Skills
- An understanding of the Software Development Life Cycle as well as the business approach for the product.
- Ability to work in a team as well as an individual
- Ability to work under pressure and maintain deadlines
- Knowledge of open source tools and utilities
- Ability to understand Project Requirements









