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Profile: Senior Java Developer
🔷 Experience: 5+ Years
🔷 Location: Remote
🔷 Shift: Day Shift
(Only immediate joiners & candidates who have completed notice period)
✨ What we want:
✅ AWS cloud services (MANDATORY)
✅ Docker containerization (MANDATORY)
✅ Spring/Spring Boot framework
✅ RESTful API development
✅ Microservices architecture
✅ Database experience (SQL/NoSQL)
✅ Git version control & CI/CD
✅ Kubernetes orchestration
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.
Design software, write code, write unit test cases, test code and review code on a daily basis
Tactical contributions to the low-level implementation
Create/enhance scalable, high performance and fault-tolerant architectures
Develop complex and distributed software modules using Java/JEE, Streaming, and Big Data technologies
Identify the performance and scalability bottlenecks and provide solutions to resolve
Write software to develop products on a daily basis
Write unit test cases and schedule/execute them
Provide estimation during grooming and sprint planning
Skills:
Excellent communication skills, verbal and written; ability to communicate with technical team and clients
Experience working in an Agile environment
Excellent analytical skills, ability to think abstractly and solve complex problems
Expertise in common object-oriented and enterprise design patterns
Technology agnostic
Hands-on experience on frameworks like Spring MVC, Spring Boot, Hibernate, JPA, OGM
Hands-on experience with relational databases (like Postgres, MySQL, Oracle)
Experience with Elasticsearch is a must
Ability to learn new frameworks and design patterns is a must
Ability to translate ideas into designs and proof of concepts is a must
Experience in SAAS, PAAS and cloud platforms such as Azure/AWS/Google Cloud Platform
Knowledge of product architecture and ability to suggest the latest architectural components
Knowledge of exposing and scaling microservices
Experience working in Linux or OS X command line environments
Experience working with Git, or other SCM tool
Knowledge of Java/JEE technology stack for M2M Applications and Support Platforms.
Should be conversant with state of the art technologies in this space and possess the ability to translate
(optional)
Required Skills:
- 4+ year of experience in Development in JAVA technology.
- Strong Java Basics
- SpringBoot or Spring MVC
- Hands on experience on Relational Databases (SQL query or Hibernate) + Mongo (JSON parsing)
- Proficient in REST API development
- Messaging Queue (RabitMQ or Kafka)
- Microservices
- Any Caching Mechanism
- Good at problem solving
Good to Have Skills:
- 4+ years of experience in using Java/J2EE tech stacks
- Good understanding of data structures and algorithms.
- Excellent analytical and problem solving skills.
- Ability to work in a fast-paced internet start-up environment.
- Experience in technical mentorship/coaching is highly desirable.
- Understanding of AI/ML algorithms is a plus.
- Min 5 years of hands-on experience in Java Spring-boot technologies
- Experience with monolithic applications
- Experience using Redis and RabbitMQ
- Experience with RDBMS such as SQLServer and My SQL
- Strong analytical, problem solving and data analysis
- Excellent communication, presentation and interpersonal skills are a must
- Micro service frameworks such as Java SpringBoot
- Design and implement automated unit and integration tests
- l IT experience delivering enterprise-scale applications or product implementations
- experience working as a technical lead.
- Working Experience in ISO20022, SWIFT, Remittance
- Language & Frameworks: Java, Spring Boot, Spring, Any ORM
- Proficiency in Java, with a good understanding of its ecosystems
- Sound knowledge of https://www.simplilearn.com/tutorials/java-tutorial/oops-interview-questions" target="_blank">Object-Oriented Programming (OOP) Patterns and Concepts
- Familiarity with different design and architectural patterns
- Skill for writing reusable Java libraries
- Knowhow of Java concurrency patterns
- Basic Understanding of the concepts of MVC (Model-View-Controller) Pattern, JDBC (Java Database Connectivity), and RESTful web services
- Experience in working with popular web application frameworks like Play and Spark
- Relevant Knowledge of Java GUI frameworks like Swing, SWT, AWT according to project requirements
- Ability to write clean, readable Java code
- Basic knowhow of class loading mechanism in Java
- Experience in handling external and embedded databases
- Understanding basic design principles behind a scalable application
- Skilled at creating database schemas that characterize and support business processes
- Basic knowledge of https://www.simplilearn.com/jvm-and-the-implications-of-sandbox-model-rar41-article" target="_blank">JVM (Java Virtual Machine), its drawbacks, weaknesses, and workarounds
- Implementing automated testing platforms and unit tests
- In-depth knowledge of code versioning tools, for instance, Git
- Understanding of building tools like Ant, Maven, Gradle, etc
- Expertise in continuous integration
Working in highly collaborative teams and building quality code
Working in lots of different domains and client environments also understanding the business domain deeply
Architect highly scalable, highly available, reliable, secure and fault-tolerant systems with minimal guidance
Suggest new architectural elements to improve the existing architecture
Design and implement low latency RESTful services; Define API contracts between services; Version APIs and make them backward compatible
Translate business requirements into scalable and extensible design
Create platforms, reusable libraries and utilities wherever applicable
Continuously refactor applications to ensure high-quality design
Choose the right technology stack for the product systems/subsystems
Write high-quality code that are modular, functional and testable; Establish the best coding practices
Formally mentor junior engineers on design, coding and troubleshooting
Plan projects using agile methodologies and ensure timely delivery
Troubleshoot issues effectively in a distributed architecture
Communicate, collaborate and work effectively in a global environment
Operationalize releases by partnering with Tech operations on capacity planning and operability of the product.
Skills Required:
Proficient in JVM based language(like Java, Groovy), J2EE technology stack
Expertise in API design and development, experience in dealing with a large dataset
Strong in collections, algorithms, multithreading, also have worked on Springboot, Hibernate frameworks.
Practicing the coding standards (clean code, design patterns, etc)
Very strong object-oriented design skills, awareness of design patterns and architectural patterns
Performance tuning and Troubleshooting memory issues, GC tuning, resource leaks, etc.
Strong problem-solving skills, algorithmic skills and data structures
Experience in agile methodologies like Scrum
Good understanding of branching, build, deployment, continuous integration methodologies
Experience in leading a team (min 5)and mentoring engineers
Attitude to getting Stuff Done!
Ability to make decisions independently.
Good to have:
Hadoop knowledge
Cloud Platform Architecture
Groovy
• Must have good knowledge of Java and J2EE
• Experience working with Java Frameworks (Spring, Strut)
• Experience working with RESTful web services (JSON, JWT)
• Experience working with front-end Java script app and frameworks
• Experience with XML and JSON
• Experience with Vert.x is a plus


