Java Developer

Position : Lead – Java Full Stack Developer

Experience : 7 to 12 Years

Location : Kochi / Thiruvananthapuram / Remote

Notice Period : Immediate to 15 Days

Open Positions : 1

Role Overview :

We are looking for a Lead Java Full Stack Developer with strong expertise in Java (Java 21, Spring Boot, and Hibernate), Angular (v19), and AWS to lead agile scrum teams and drive end-to-end feature delivery.

Key Skills Required :

• Java 21, Spring Boot MVC, Spring Data, Hibernate, Gradle
• Angular 19, HTML5, CSS3, JavaScript, REST APIs
• PostgreSQL / RDBMS / NoSQL
• AWS services: S3, Secrets Manager, CloudWatch
• CI/CD (Jenkins, GitHub), Docker
• Unit Testing (Jasmine/Karma or Jest)
• Tools: JIRA, Azure DevOps, Confluence
• Strong in design patterns, OOPs concepts, and performance optimization
• Excellent debugging and communication skills

Responsibilities :

• Design, develop, and deploy scalable full stack solutions
• Lead sprint tasks, perform code reviews, and ensure code quality
• Collaborate with stakeholders and convert requirements into technical specs
• Participate in Agile ceremonies and follow DevOps/CI-CD best practices
• Guide team members and promote technical best practices

Interview Process :

1. Technical Round
2. 2–3 Technical Rounds
3. Final Technical Discussion

🧠 Job Description: Senior Java Developer (8+ Years Experience)

Location: Mumbai, India

Employment Type: Full-time, Hybrid mode of working

Company: Wissen Technology

Website: www.wissen.com

🚀 About Wissen Technology

Wissen Technology is a specialized technology consulting firm delivering cutting-edge solutions to global leaders in Banking & Finance, Telecom, and Healthcare. Established in 2015 and part of the Wissen Group (founded in 2000), Wissen has scaled rapidly with impressive impact and recognition.

• 🌍 Offices in US, UK, India, Australia, Mexico, and Canada
• 👥 1700+ Wissen Technology professionals; part of a 4500-strong Wissen Group
• 🏆 Great Place to Work® Certified
• 🧠 Featured as a Top 20 AI/ML Vendor (CIO Insider, 2020)
• 📈 Achieved 400% revenue growth in 5 years (with zero external funding)
• 💼 Delivered $1B+ worth of projects to 50+ Fortune 500 companies

Learn more about our work and thought leadership:

📄 Articles by Wissen | 💼 LinkedIn

About the Role

We are seeking an experienced Senior Java Developer with 8+ years of hands-on expertise in building scalable, high-performance applications. The ideal candidate will have strong fundamentals in Java, OOPS, Multithreading, Spring concepts, and SQL, and will play a key role in designing, developing, and optimizing enterprise-grade solutions.

Key Responsibilities

• Design, develop, and maintain complex applications using Core Java and Spring frameworks
• Apply advanced Object-Oriented Programming (OOPS) principles to deliver clean, modular, and reusable code
• Implement and optimize multithreaded applications for high-performance systems
• Work with SQL databases for efficient data modeling, query optimization, and integration
• Collaborate with cross-functional teams to gather requirements and translate them into technical solutions
• Conduct code reviews, troubleshoot issues, and ensure adherence to best practices
• Mentor junior developers and contribute to technical knowledge sharing within the team
• Ensure application scalability, performance tuning, and security compliance

Required Skills & Qualifications

• Bachelor’s/Master’s degree in Computer Science, Engineering, or related field
• 8+ years of professional experience in Java development
• Strong expertise in Core Java, OOPS, and Multithreading
• Hands-on experience with Spring concepts (Spring Core, Spring MVC, Spring Boot preferred)
• Proficiency in SQL and database design (MySQL, Oracle, PostgreSQL, etc.)
• Solid understanding of software development life cycle (SDLC) and Agile methodologies
• Strong analytical, problem-solving, and communication skills

🌟 Why Wissen?

Join a company that combines start-up agility with enterprise stability. Work alongside some of the brightest minds from institutions like MIT, Wharton, IITs, IIMs, and NITs. Be part of mission-critical projects for Fortune 500 giants, and grow in a culture that invests in your future.

Required Skill Set

Software Engineer/Senior Software Engineer/Lead Engineer-Java

• Experience in Core Java 8.0 and above, Data Structures, OOPS, Multithreading, Algorithms, Collections, Unix/Linux
• Possess good architectural knowledge and be aware of enterprise application design patterns.
• Should have the ability to analyse, design, develop and test complex, low-latency client-facing applications.
• Good development experience with RDBMS
• 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 have the ability to express their design ideas and thoughts.

Responsibilities

• Understand product requirements and come up with solution approaches
• Build and enhance large scale domain centric applications
• Deploy high quality deliverables into production adhering to the security, compliance and SDLC guideline.

🔴 Profile: Java Developer

🔷 Experience: 2+ Years

🔷 Location: Mumbai

🔷 Mode: Immediate joiners preferred

✨ What we want:

✅ Core Java expertise (Java 8+, Collections, Multithreading)

✅ Spring Framework proficiency (Spring Boot, Spring MVC, Spring Security)

✅ Database skills (MySQL, PostgreSQL, Oracle, Hibernate/JPA)

✅ Microservices architecture experience

✅ RESTful API development and integration

✅ Maven/Gradle build tools

✅ Version control (Git, SVN)

✅ Application servers (Tomcat, JBoss, WebLogic)

✅ Cloud platforms (AWS/Azure preferred)

✅ Frontend basics (HTML, CSS, JavaScript - nice to have)

✅ Testing frameworks (JUnit, Mockito)

Requirements:

• Excellent knowledge of Core Java (J2SE) and J2EE technologies.
• Hands-on experience with RESTful services and API design is a must.
• Knowledge of microservices architecture is a must.
• Knowledge of design patterns is a must.
• Strong knowledge of Exception handling and logging mechanism is a must.
• Agile scrum participation experience. Work experience with several agile teams on an application built with microservices and event-based architectures to be deployed in hybrid (on-prem/cloud) environments.
• Good knowledge of Spring framework (MVC, Cloud, Data and Security. Etc) and ORM framework like JPA/Hibernate.
• Experience in managing the Source Code Base through Version Control tools like SVN, GitHub, Bitbucket, etc.

Shift: 11 am to 8 pm

Hands on skills on the following technologies:

• Kafka Streams
• CassandraDB
• MS SQL SERVER
• Liquibase
• Maven, GIT, JUNITS

Mandatory skills:

• Java 17
• Spring Boot
• Spring Cloud
• Spring JPA
• Apache Kafka
• Microservices

Java with cloud

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.)

• Contribute in all phases of the development lifecycle

• Write well designed, testable, efficient code

• Ensure designs are in compliance with specifications

• Prepare and produce releases of software components

• Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review

• Build reusable code and libraries for future use

Required Skill set :

• Java background with a minimum of 2 years experience in Java technologies.

• Experience in designing and developing application backend using frameworks like Spring Boot, Spring MVC, Jersey, JPA, Hibernate, SQL, Linux, JSON, XML, OAuth etc.

• Add on : Experience with frontend technologies like CSS,HTML,Javascript, NodeJS/Express, Angular, React, ExtJS, Vue is preferred

• Experience with both SQL and NoSQL database systems and writing SQL queries

• Strong experience building, designing, and consuming Restful web services.

• Exposure of Cloud Infrastructure - AWS and Alibaba Cloud

• Excellent understanding of ORM and Database concepts

• Experience with developing unit test code using JUNIT, Power Mock/EasyMock/Mockito etc.

• Experience with Git, Maven and CI/CD pipelines to deploy on Cloud applications

• Experience & knowledge on Micro services Architecture and API development using Java, spring, Spring Boot

• Experienced in roles conducting requirements gathering, writing user stories, creating application design and using design patterns

• Good knowledge on credentials/secrets management and data encryption techniques

• Good knowledge on coding standards, design patterns, unit testing.

• Good hands - on BitBucket/Github is preferred.

WHAT YOU’LL BE DOING: 

• Compile and analyze data, processes, and codes to troubleshoot problems and identify areas for improvement. 
• Collaborate with the front-end developers and other team members to establish objectives and design more functional, cohesive codes to enhance the user experience. 

• Develop ideas for new programs, products, or features by monitoring industry developments and trends. 
• Record data and report it to proper parties, such as clients or leadership. 
• Participate in continuing education and training to remain current on best practices, learn new programming languages, and better assist other team members. 
• Take the lead on projects, as needed. 
• Be involved and participate in the overall application lifecycle. 

• Build high-quality reusable code that can be used in the future. 
• Develop functional and sustainable web applications with clean codes. 
• Conduct UI tests and optimize performance. 
• Manage cutting-edge technologies to improve applications. 

QUALIFICATIONS: 

• Bachelor’s degree in Computer Science, Computer Programming or relevant field. Master’s Degree in a related field is preferred. 
• 5-7 years of relevant experience 
• Must be an expert programmer, skilled at computer languages such as HTML, C+++, C#, PHP, Python and Java. 
• Must understand Spring Core, Spring Boot, Spring MVC, Spring Data, JMS, Mysql, Redis, CouchDb, Micro Services, Docker, Kubernetes 
• Must be able to interpret and follow instructions related to the ultimate functionality of our IT-based product 

• Familiarity with front-end languages such as HTML, JavaScript and CSS 
• Must be comfortable with technology architecture and how a computer and its software functions. 
• Deadline driven, organized and understand how people view and understand content on the front-end 
• Proven experience in highly complex environments 
• Strong technical documentation skills 

• An ability to solve multifaceted technical issues in a fast-paced environment 
• Self-motivated and accountable for your work 
• Passionate about learning and continuous improvement 
• Excellent written and verbal communication skills 
• Ability to work overtime