Sr Java Developer

Job Title: Full Stack Developer (Java + React)

Location: Bangalore

Experience Level: 6–10 Years

Employment Type: Full-time

Job Summary-

Wissen Technology is looking for a skilled Full Stack Developer with strong experience in Java (backend) and React (frontend) to join our engineering team. You will be responsible for designing, developing, and maintaining scalable web applications, collaborating with cross-functional teams, and delivering high-quality software solutions.

Key Responsibilities

• Design, develop, and maintain robust, scalable, and secure web applications
• Build RESTful APIs using Java-based frameworks
• Develop responsive and dynamic user interfaces using React
• Collaborate with product managers, designers, and other developers to define and deliver features
• Write clean, maintainable, and efficient code following best practices
• Perform code reviews and mentor junior developers
• Troubleshoot, debug, and upgrade existing applications
• Ensure application performance, quality, and responsiveness
• Participate in Agile/Scrum development processes

Required Skills & Qualifications

• Strong proficiency in Java (8 or above) and backend frameworks such as Spring Boot
• Solid experience with React.js, including hooks, state management, and component lifecycle
• Experience building and consuming REST APIs
• Familiarity with frontend technologies: HTML5, CSS3, JavaScript (ES6+)
• Knowledge of databases such as MySQL, PostgreSQL, or MongoDB
• Experience with version control systems like Git
• Understanding of software development principles, design patterns, and data structures
• Familiarity with build tools like Maven or Gradle
• Basic understanding of cloud platforms (AWS, Azure, or GCP) is a plus

 strong experience in Java Spring Boot and Angular to lead a team of developers for a client project based out of Whitefield, Bangalore. The role requires hands-on development, design, architecture understanding, code review, and team coordination.

Key Responsibilities

• Lead a team of 9 developers and provide technical guidance.
• Perform hands-on development using Java, Spring Boot, Angular.
• Drive solution design, code quality, best practices, and performance optimization.
• Work closely with the client’s product owners and architects.
• Conduct code reviews, technical grooming, and sprint planning.
• Troubleshoot and resolve complex technical issues.
• Ensure timely delivery of modules with high quality.
• Mentor team members and support them in solving technical blockers.

Technical Skills Required

• Strong expertise in Java 8+, Spring Boot, REST APIs.
• Strong front-end experience with Angular 8+, TypeScript, HTML, CSS.
• Experience with SQL/NoSQL databases (MySQL, PostgreSQL, MongoDB, etc.).
• Hands-on with Git, Maven/Gradle, Jenkins, CI/CD.
• Knowledge of cloud platforms (AWS) is an added advantage.
• Experience with Agile/Scrum methodologies.

Soft Skills

• Excellent communication and client-facing skills.
• Ability to lead, mentor, and motivate the team.
• Strong problem-solving and analytical skills.

We are seeking a talented Java Full Stack Developer to join our team.

We are solving complex technical problems in the financial industry and need talented software engineers to join our mission and be a part of a global software development team. As a Java Full Stack Developer, you will be responsible for designing, developing, and maintaining enterprise applications using Java and Angular.

You will collaborate with cross-functional teams to define, design, and ship new features, and you will work closely with Architects to ensure the technical feasibility of designs and implement them accordingly.

Required Skills: 

• Exp. - 5 to 9 years. 
• Experience in Core Java 8 and above, Spring (including Core, WebMvc, Batch, Cloud etc). 
• Extensive experience in developing enterprise-scale n-tier applications for financial domain. Should possess good architectural knowledge and be aware of enterprise application design patterns. 
• Should be able to analyze, design, develop and test complex, low-latency client-facing applications. 
• Develop user interfaces for modern web applications using Angular. 
• Experience with HTML5, CSS3, and JavaScript. 
• Good development experience with RDBMS, preferably DB2/Sybase databases. 
• Good knowledge of multi-threading and high-volume server-side development. 
• Basic working knowledge of Unix/Linux. 
• Excellent problem solving and coding skills in Java. 
• Strong interpersonal, communication and analytical skills. 
• Should be able to express their design ideas and thoughts. 

Good to have Skills: 

• Prior experience in investment banking / capital markets. 
• Experience with cloud platforms such as AWS, Azure, or Google Cloud Platform. 
• Knowledge of DevOps practices and CI/CD pipelines. 
• Familiarity with Agile methodologies. 
• Contributions to open-source projects. 
• Relevant certifications (e.g., Angular, Java). 

This role is physically based out of Mauritius and will require you to relocate to Mauritius. Relocation expenses like air tickets/work visa/permit/medical for work permit will be borne by the company

The role of a senior java developer is to ensure high quality software development and delivery to the end client.

As senior software developer, you shall be the technical SME on the project and ensure that the team abide by the quality standard set on the project.

On the Java Expertise Center, you shall be contributing to the knowledge building committee where you will be coaching juniors and demy students

Key Skills:

 Very good knowledge in Java (at least from Java 8).

 Good knowledge of Spring boot

 Experience with JPA/Hibernate

 Experience in middleware such as MessageQueues

 Experience with REST interfaces and GRPC

 Experience with modern agile software development (Continuous Integration)

 Experience in securing APIs

 Knowledge in design patterns

1. Software Development

 Act autonomously in the delivery of tasks of simple to high complexities on projects.

 Participate actively with team members to reduce risks related to tasks and activities.

 Ensure deliveries (code, documentation, release notes) are executed within set quality standards and processes.

 Understand and apply standard methods, tools and processes in daily tasks.

 Participate in sprint backlog estimation.

2. Team coaching & technical reference on project.

 Work with the team architect to help coach team members and ensure they

abide by the technical standards set on the project.

 Coach new joiners and accompany them technically & functionally on the

project.

 Be the technical reference on the project, besides the architect.

 Communicate technical KPI to your project manager.

 Review code contributed by team members, ensuring adherence to coding standards, best practices, and quality standards.

 Act as a coach or trainer and contribute actively to the Java Expertise Center.

 A commitment to continuous learning and staying updated with industry trends and best practices

 Participate in budget auditing activities as required by direct report in the capacity of a Developer

Key Dimensions:

 Ability to monitor unit test coverage and ensure team abide by same standard (Standard unit test coverage

of 60% on new and overall codes)

 Ensures Sonar analysis of project is as per quality gate and any deviations are tackled by the team

 Ensuring highest quality delivered to client.

We want a developer who has experience with Quickbooks API, who can create a self serve tool, which will map data from other accounting software to QBO

• 6 to 9 yrs You can write backend code using primarily Java
• You can contribute to frontend code stack in ReactJS or other Javascript framework
•  front-end technologies (ReactJS /AngularJS) experience
• 3+years of experience with web application development
• 3+ years of database experience
• 3+ years of Webservices or API Development experience
• 3+ years of experience with Java development
• Web Framework experience with Spring MVC
• Strong work experience with Java, Spring Boot, Microservices, MongoDB
• Web UI experience with CSS, AJAX, JavaScript, Bootstrap, AngularJS / ReactJS
• Familiarity and working knowledge Docker, Jenkins
• Database and caching experience, SQL and NoSQL (SQL, Postgres)

• Having around 10+ years of Experience in IT industry in Software Development.
• Having strong Python full stack developer.
• Having work Experience in OpenStack,Ansible, Shellscript, Chef, Puppet, Docker,ELK,OpenTSDB, Kafka, Zookeeper, Grafan
• Having work experience in SDN/NFV
• Having work experience in AWS,AZURE Cloud
• Experience in Python, HTML, CSS
• Having work experience in Open source and Open Flow Controller(SDN).
• Having work experience in Zabbix, Nagiso, OpenNMs Monitoring tool.
• Experience in Aglie methodology.
• Having work experience in Type1&Type2 Hypervisors and KVM.
• Having good knowledge on OOP'S concepts and Django ORM.
• Good Knowledge on MySQL ,Postgresql, HDFS, Timeseries
• Basic Knowledge on Javascript and Jquery.
• Good Knowledge on ONOS,OpenKilda,Mininet.
• Having work experience in SDN/NFV, Orchestration
• Having work experience in Supply Chain Management system.
• Having work experience in MVT/MVC architecture.
• Having good knowledge networks, devices, service modeling and automation in systems.
• Having work experience on API & JSON implementation.
• Good Understanding of Software Development (i.e. SDLC)
• Good team player enthusiastic and quick learner
• Good interpersonal skill, commitment, result oriented with a quest and learn new technologies and understanding challenging tasks

• Developing front end website and application architecture.
• Designing user interactions on web pages.
• Developing back-end website and applications.
• Creating servers and databases for functionality.
• Ensuring cross-platform optimization for mobile phones.
• Ensuring responsiveness of applications.
• Working alongside graphic designers for web design features.
• Seeing through a project from conception to finished product.
• Designing and developing APIs.
• Meeting both technical and consumer needs.
• Staying abreast of developments in web applications and programming languages.