Tech lead - java, springboot, datastructure

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 - Senior Backend Developer – Java (with Python Exposure)- Mumbai

Experience - 4 to 10 years

Kindly revert over mail if you are interested.

Java Developer – Job Description

We are seeking a Senior Backend Developer with strong expertise in Java (Spring Boot) and working knowledge of Python. In this role, Java will be your primary development language, with Python used for scripting, automation, or selected service modules. You’ll be part of a collaborative backend team building scalable and high-performance systems.

Key Responsibilities

• Design and develop robust backend services and APIs primarily using Java (Spring Boot)
• Contribute to Python-based components where needed for automation, scripting, or lightweight services
• Build, integrate, and optimize RESTful APIs and microservices
• Work with relational and NoSQL databases
• Write unit and integration tests (JUnit, PyTest)
• Collaborate closely with DevOps, QA, and product teams
• Participate in architecture reviews and design discussions
• Help maintain code quality, organization, and automation

Required Skills & Qualifications

• 4 to 10 years of hands-on Java development experience
• Strong experience with Spring Boot, JPA/Hibernate, and REST APIs
• At least 1–2 years of hands-on experience with Python (e.g., for scripting, automation, or small services)
• Familiarity with Python frameworks like Flask or FastAPI is a plus
• Experience with SQL/NoSQL databases (e.g., PostgreSQL, MongoDB)
• Good understanding of OOP, design patterns, and software engineering best practices
• Familiarity with Docker, Git, and CI/CD pipelines

Job Summary:

We are seeking a seasoned Java Backend Developer Lead to drive the design, development, and deployment of robust backend systems. This role requires hands-on coding expertise, architectural vision, and the ability to mentor and lead a team of developers in delivering high-performance, scalable applications.

Key Responsibilities:

• Lead the backend development team in designing and implementing microservices-based architectures using Java (preferably Java 11+).
• Architect and develop RESTful APIs and backend services using Spring Boot, Hibernate, and related frameworks.
• Collaborate with DevOps teams to streamline CI/CD pipelines using Jenkins, Docker, and Kubernetes.
• Ensure code quality through code reviews, unit testing (JUnit/TestNG), and integration testing.
• Optimize application performance and scalability through profiling and tuning.
• Guide team members in adopting best practices in software engineering, including Agile methodologies.
• Work closely with product managers, frontend developers, and QA teams to deliver end-to-end solutions.
• Maintain documentation and ensure knowledge sharing across the team.

Required Skills:

• Strong proficiency in Java, Spring Boot, and REST API development.
• Experience with relational databases (MySQL, PostgreSQL) and NoSQL (MongoDB, Redis).
• Familiarity with messaging systems like Kafka or RabbitMQ.
• Solid understanding of cloud platforms (AWS, Azure, or GCP).
• Experience with containerization and orchestration tools (Docker, Kubernetes).
• Excellent problem-solving, debugging, and analytical skills.
• Strong leadership and communication abilities.

Preferred Qualifications:

• Bachelor’s or Master’s degree in Computer Science, Engineering, or related field.
• 7+ years of backend development experience, with at least 2 years in a lead role.
• Exposure to security best practices and performance testing tools like JMeter.

Basic Qualifications:

• 3+ years of non-internship professional software development experience
• Programming experience with at least one modern language such as Java, C++, or C# including object-oriented design
• 1+ years of experience contributing to the architecture and design (architecture, design patterns, reliability and scaling) of new and current systems.

Additional Job requirements

• BS/MS/PhD in Computer Science/Math or equivalent
• BS in computer science or related field.
• 2+ years of relevant professional software development experience: designing, developing, and delivering software written in Java, C#, or C++, web development.
• Knowledgeable in object-oriented design patterns.
• Experience building highly scalable and distributed systems

Preferred Qualifications

• Experience with service-oriented architecture and application/services development
• Passion for performance debugging and benchmarking

Ability to clearly and concisely communicate with technical and non-technical stakeholders across all levels of the organization

Roles & Responsibilities JOB TITLE: AEM Developer - Senior

RESPONSIBILITIES:

1. Participation in software development and maintenance

processes as per quality requirements, procedures and best

practices applicable.

2. Implementing, optimizing and supervising efficiency of IT

systems in accordance with specific standards, resolution or

escalation of problems, as appropriate.

3. Drawing up technical documentation.

4. Developing knowledge in scope of information technology used.

5. Developing knowledge in scope of best practices and standards

of creating software.

6. Developing soft skills in scope of effective communication and

efficient teamwork, solution presentation and knowledge sharing.

7. Interpreting business cases, preparing specifications and

analyzing functional and technical requirements.

8. Designing solutions and creating documentation, estimating

individual scope of works and time consumption of works.

9. Within the team and project/services, proactively identifying

problems and proposing measures to increase the level of services.

10. Developing knowledge in scope of information technology

used.

11. Developing knowledge in scope of best practices and standards

of creating software.

12. Spreading the knowledge throughout the organization by

educating and supporting less experienced Specialists.

13. Maintaining industry standards and practices in projects.

14. Performing tasks assigned by the superior.

PROFESSIONAL EXPERIENCE& TECHNICAL SKILLS

1. Minimum 3 years of experience in work related to CQ/AEM

development.

2. Minimum 5 years of experience in work related to Java

development in IT sector.

SOFT SKILLS:

1. Independence in performance of tasks assigned.

2. Team and end user communications skills.

3. Skills to acquire knowledge and put it in practice.

4. Work time estimation based on functional or technical

requirements.

5. Recommending employment in the case of reviewing technical

knowledge of candidates in recruitment process.

6. Work time estimation.

7. Designing and supervising implementation of solutions.

SPECIAL QUALIFICATIONS: Nice to have: AEM 6 Developer

certification

Skills Primary Skills –

1. AEM including Sling Models

2. Apache Sling

3. JCR

4. Sightly (must)

Secondary Skills –

1. OSGi (Apache Felix),

2. Java, JavaEE (Servlet, Filter, JSP)

3. Git

4. Junit

5. Maven

6. REST

7. Object Oriented Design Patterns, Basic HTML + JavaScript

Experience Total Experience – 4-6 years

Relevant Experience – 4-6 years

Qualification Required to perform the

Job (Any Certifications if Needed)

Bachelor’s in information technology or equivalent qualifications.

Skills & Abilities:

1. Language: Java, J2EE, springboot, angular, react, node, (CSS: Tailwind CSS + angular Material) etc.

2. OS : Linux, windows

3. Database : Oracle, postgres, PL/SQL

4. Desirable : API integration, CI/CD, automation, working experience in the mobile financial domain

5. Able to mentor and guide juniors

6. Able to resolve customer queries independently

7. Able to write test cases  and execute test plans

8. Added advantage (Good to have): application security, RabbitMQ, Apache Kafka, Grafana, Prometheus, MongoDB, shell scripting basics

Job Purpose: At the Mobiquity project engineering team, our core job is to customize, install, configure and support the customer during the entire project lifecycle.

Principal Accountabilities Development

1. Write code in Java and java based technologies as well as web GUI development using latest technologies like, angular, react, conforming to company guidelines against written requirements & high-level design documents, particularly for complex modules that cannot be handled by junior developers. Work in an IDE while developing code ( especially in Java) and use GIT, SVN or any other CM tool being used in the company, for checking in and checking out the code being developed.

2. Submit developed code for review, incorporate required changes and conduct Unit testing, after preparing Unit Test Plans and necessary stubs.

3. Review code offered by others and document response in assigned format.

4. Participate in (a) the integration of the developed code with code developed by other team members (this could happen on customer premises if appropriate environment is not available in-house) (b) preparation of the environment for integration testing (c) execution of integration testing (d) fixing the problems relating to the offered code as discovered in the integration testing.

5. Participate in load testing conducted on the final product and fix problems encountered.

6. Assist Product Validation Group in setting up the test environment, writing test cases, generating stubs and executing tests.

7. Review test cases written by the Product Validation Group.

8. Install product in customer location, train the customer reps on product features and operation & maintenance procedures, and complete user acceptance testing, making any changes in the final deliverable as required.

9. Handle customer queries and complaints received directly or through the company support organization.

10. Change code to fix reported customer problems after trouble shooting, get the fix reviewed and complete selective regression testing.

11. Draft user documentation for consolidation by the technical documentation team. This could include GUI, API, O&M and technical documentation relating to COTS. Review drafts prepared by junior developers.

12. Help maintain design requirement documents as directed.

13. Participate in the development, release, support & enhancement activity through multiple release cycles and multiple products

14. Proactively seek feedback/reviews on self-development, learning, and developed code. Responsible for completing the assigned task in all aspects by proactively seeking reviews, and updating the status to supervisors.

15. Ensure the task assigned is understood in all respects and communicate effectively and raise necessary alarms to reporting leads if anything is not understood or no progress is possible.

Capability Building

1. Assist junior developers in coding, testing, and troubleshooting.

2. Train and support a new member joining the team with little or no experience in the development environment, technology domain, and the specific work underway. Focus on scope of work familiarization.