Java Developer

Java Developer – Job Description 

Wissen Technology is now hiring a Java Developer 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 consultancy. 

Required Skills: 

• Exp. - 4 to 9 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.

Role: Java Developer

Overall: 4 to 8 Years

Location: Chennai

Notice: Immediate to short joiners

Job Description:

We are looking for a skilled and enthusiastic Java Developer to join our team in Chennai. The ideal candidate should have strong hands-on experience in Java development with a focus on backend frameworks such as Spring Boot and Hibernate. If you’re passionate about clean code, scalable applications, and delivering robust software solutions—this is the role for you.

Key Responsibilities:

• Design, develop, test, and maintain backend applications using Java, Spring Boot, and Hibernate.
• Write efficient, scalable, and reusable code.
• Participate in design discussions, code reviews, and deliver high-quality software.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Troubleshoot, debug, and upgrade existing systems.
• Ensure best practices in software development and Agile methodologies.

Required Skills:

• Strong proficiency in Core Java (Java 8 or above).
• Hands-on experience with Spring Boot and Hibernate.
• Proficient in working with RESTful APIs and Web Services.
• Experience with SQL and relational databases (e.g., MySQL, PostgreSQL).
• Familiarity with version control tools like Git.
• Knowledge of software development lifecycle and Agile practices.

Key Responsibilities:

• Lead and manage a team of Java developers, providing guidance and support
• Oversee the entire software development lifecycle, from requirements gathering to deployment
• Design, develop, and implement Java-based solutions that meet project requirements
• Collaborate with cross-functional teams to ensure project milestones are achieved
• Conduct code reviews, provide technical guidance, and ensure code quality and best practices

Requirements:

• Minimum 4 years of experience in Java development
• Strong knowledge of Java frameworks and technologies (Spring, Hibernate, etc.)
• Experience in leading and mentoring a team of developers
• Excellent problem-solving and analytical skills
• Good understanding of software development methodologies and processes

Job Responsibilities:

* Design, build, and maintain efficient, reusable, and reliable Java code

* Ensure the best possible performance, quality, and responsiveness of the applications

* Identify bottlenecks and bugs, and devise solutions to these problems

* Help maintain code quality, organization, and automatization

* Prepare the technical design of complex technology components

Mandatory Skills:

* Proficient in Java (JDK 1.7) or above JDK 8 preferable, with a good knowledge of its ecosystems with a knack for writing clean, readable Java code, writing reusable Java libraries along with knowledge of concurrency patterns in Java

* Solid understanding of object-oriented programming along with various design and architectural patterns

* Hands on experience with Spring, Spring Boot, JUnit

* Familiarity with concepts of MVC, Microservices, RESTful

Responsibilities

• Help define Technical Roadmap and own the entire product delivery end to end
• Work very closely with various business stakeholders to drive the execution of multiple business plans and technologies
• Improve, optimize and identify opportunities for efficient software development processes
• Hire, Develop and Retain a strong team of engineers
• Keep abreast of the changes in the industry and champion new technologies and development processes within the team
• Thinking backwards from a customer POV and relentlessly pursuing customer's cause in tech and product decisions

Apply If You have:

• Graduation/Post Graduation degree in Computer Science (IITs, IIITs and NITs preferred)
• 6-10 years of strong experience in JAVA(Spring/Hibernate/JPA/REST), JavaScript, NodeJS with good exposure to MySQL
• Experience with AWS, Microservices, Caching, Performance Optimization, Nginx, Solr, Redis, Redshift
• Experience working with agile teams and making rapid decisions in dynamic and disruptive environment
• 2+ years of leading and managing a team consisting of backend, frontend and QA.
• Hands on writing and reviewing code
• Exceptional design and architectural skills
• Strong communication skills
• High motivation to work in a fast paced, dynamic, collaborative team environment

As Back end developer, we expect you to be motivated in solving real-life complex problems and create compelling experiences for our Resellers. Being a small company we have a culture of creative problem solving, intellectual design, fast-paced development, and passionate product delivery. Enhance or build Restful web services for our mobile app.

Responsibilities:

• Develop server-side components, REST APIs
• Assume ownership for existing and new modules including design, development, and unit testing for enhancements of existing modules and development of new modules.
• Analyse problems logically and exercise sound judgment in defining, evaluating, and solving difficult technical and operational problems where solutions may be of a precedent-establishing nature.
• Lead the design and architectural improvements
• Participate and collaborate with team members in design discussions, determines areas of complexity, potential risks to successful implementation, suggest enhancements to architecture, implement POCs, and enhance application.
• Reduce technical debt with quality coding

Requirements:

• A solid grounding in Computer Science fundamentals (based on a BS or MS in CS or related field) from IITs and Premier Engineering College.
• Excellent Object Orientation, coupled with excellent problem solving and debugging skills.
• Highly skilled at Java and related technologies, including Java Frameworks like Spring-boot or Drop wizard, RESTful web services, JSON, Servlet, JSP, MySQL, MongoDB, Kafka, AWS Solr.
• Must have hands-on experience in building scalable and secure back end systems.
• Have hands-on experience with systems that are asynchronous, RESTful and demand concurrency
• Good to have knowledge of best software engineering practices for all stages of the software development life cycle, including coding standards, code reviews, testing, deployment.

• Team with top-notch engineers, product managers, program managers, DevOps and QA following agile development methodologies
• Review functional requirements, providing technical feedback on feasibility and architectural approach and framework.
• Design and develop web / mobile applications
• Create Prototype and/or Proof of Concepts (POCs) when necessary
• Act in a technical leadership capacity: Mentor junior engineers and new team members, perform code reviews and apply technical expertise to challenging programming and design problems
• Utilize Agile Development, SCRUM / Pair / Extreme Programming methodologies
• Design and develop supporting components and microservices for the backend tiers focusing on fault-tolerance and scalability in a multi-tenant enterprise environment
• Maintain and improve the functionality and performance of the existing web applications
• Help shape and execute the technical roadmap to develop next generation features; integrate corporate- and product-level architecture principles and goals into the teams project work through designs, implementation strategies, and project planning.
• Drive a culture of quality, technical curiosity, continuous improvement, and evidence-based data driven decision making in the organization.
• Execute other Duties as assigned

• 3+ years of experience developing Backend, API and data-based applications/software
• Experience with one of the major relational databases (MySQL, Oracle, Postgres) and NoSQL databases (Mongo DB, Cassandra, Dynamo DB or such)
• Expert object-oriented programming experience using Java
• Strong OO design and programming skills in Java, Hibernate, JPA, Spring Boot
• Worked in Maven, JPA, REST services, Postman
• Working knowledge on Spring Security / Spring Batch / ZUUL / Eureka / Hysterix
• Exposure with Frontend technologies (React.js, Angular or Ruby-on-Rails)
• Require experience and Strong understanding of entire Software Development Life Cycle (SDLC), Agile (Scrum), Software design/architecture process, unit testing & Test-Driven Development (TDD)
• Experience with web services (consuming or creating)
• Experience managing Cloud infrastructure (resources and service) in AWS, Azure and/or GCP
• Strong knowledge of SOA, object-oriented programming, design patterns, multi-threaded application development
• Experience in reporting and analytics, queuing and real-time streaming systems
• Git or similar distributed SCM tools experience.

We are looking for a highly motivated developer with at least 1+ years of strong hands-on experience in Java to join our startup. You would be playing a pivotal role in contributing to the initial tech stack. You would be further responsible for designing and implementing product requirements that are highly usable, scalable, extensible, and maintainable. You should be comfortable working across different technologies/frameworks that we work on - Microservices, Java, Spring, Spring Boot, MySQL, Kubernetes, AWS.

Responsibilities and Duties:

• Design and build scalable REST APIs on Spring Boot
• Develop, test, tune for performance and deploy microservices
• Collaborate with the team, optimize and refactor the back-end architecture
• Maintain high standards of quality for code, documentation and other deliverables
• Active cross-team coordination would be expected

What are we looking for?

• 1+ year experience in Core Java & backend technologies
• Good working knowledge of design patterns & OOAD
• Excellent analytical and problem-solving skills
• The skills that we consider: Java, MySQL/RDS, Spring/ Play, Maven, Redis, Kafka/SQS, Elasticsearch, AWS
• Experience in micro-services
• Previously worked in a startup