Java Back End Developer

Position : Software Engineer (Java Backend Engineer)

Experience : 4+ Years

📍 Location : Bangalore, India (Hybrid)

Mandatory Skills : Java 8+ (Advanced Features), Spring Boot, Apache Spark (Spark Streaming), SQL & Cosmos DB, Git, Maven, CI/CD (Jenkins, GitHub), Azure Cloud, Agile Scrum.

About the Role :

We are seeking a highly skilled Backend Engineer with expertise in Java, Spark, and microservices architecture to join our dynamic team. The ideal candidate will have a strong background in object-oriented programming, experience with Spark Streaming, and a deep understanding of distributed systems and cloud technologies.

Key Responsibilities :

• Design, develop, and maintain highly scalable microservices and optimized RESTful APIs using Spring Boot and Java 8+.
• Implement and optimize Spark Streaming applications for real-time data processing.
• Utilize advanced Java 8 features, including:
• Functional interfaces & Lambda expressions
• Streams and Parallel Streams
• Completable Futures & Concurrency API improvements
• Enhanced Collections APIs
• Work with relational (SQL) and NoSQL (Cosmos DB) databases, ensuring efficient data modeling and retrieval.
• Develop and manage CI/CD pipelines using Jenkins, GitHub, and related automation tools.
• Collaborate with cross-functional teams, including Product, Business, and Automation, to deliver end-to-end product features.
• Ensure adherence to Agile Scrum practices and participate in code reviews to maintain high-quality standards.
• Deploy and manage applications in Azure Cloud environments.

Minimum Qualifications:

• BS/MS in Computer Science or a related field.
• 4+ Years of experience developing backend applications with Spring Boot and Java 8+.
• 3+ Years of hands-on experience with Git for version control.
• Strong understanding of software design patterns and distributed computing principles.
• Experience with Maven for building and deploying artifacts.
• Proven ability to work in Agile Scrum environments with a collaborative team mindset.
• Prior experience with Azure Cloud Technologies.

5+ years of Experience designing, building and testing Java EE applications  

Experience designing, implementing, and integrating Spring and/or Spring Boot 

Good knowledge in recent version of Java, Oracle, JBoss, Hibernate  

Experience in working with Messaging systems like Apache Kafka  

Developing low level designs based on HLD  

Reviewing code to check coding standards and best practices to ensure quality.  

Hands on knowledge in Unit testing Framework like Junit and good understanding on Exception Handling in Java  

Good Knowledge in UI like React or Angular  

Experience designing SOAP / RESTful web services  

Working on bug fixing and improving application performance  

Familiarity with build tools such as Maven and Gradle.  

Familiar with various design and architectural patterns  

Familiarity with continuous integration

Wissen Technology is now hiring for a Java Developer - Bangalore 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 consulting.

Required Skills:

• Exp. - 5 to 10 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.

About Wissen Technology:

Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen has successfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals.

Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always first time right.

Our team consists of 1200+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world.

Wissen Technology offers an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.

We have been certified as a Great Place to Work for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider.

Task:

• Design, implement and maintain Java application phases
• To take part in software and architectural development activities
• Conduct software analysis, programming, testing and debugging
• Identifying production and non-production application issues
• Transforming requirements into stipulations
• Develop, test, implement and maintain application software
• Recommend changes to improve established Java application processes
• Develop technical designs for application development
• Develop application code for Java programs

We wish:

• Minimum 7 years of experience with excellent Java development skills
• Demonstrable hands-on experience of delivering solutions in a JavaEE 6 environment
• Open-source frameworks and standards Hibernate, Spring JDBC
• Hands-on experience with tools such as: Ant, Eclipse, Maven, SVN, SoapUI, JIRA, Bamboo
• WS concepts and protocols: WSDL, REST, SOAP, JMS, XSLT, XML Schema
• Experienced with one or more open-source ESB products (JBOSS FUSE ESB, Apache Camel, Apache servicemix) and / or message-oriented middleware and Active MQ, JMS
• Strong Java unit test skills
• Good experience in design patterns & design principles
• Experience with Webservices, PLSQL and SQL (Oracle 10g or above)
• Experience in Oops development with Core Java
• Desirable:
  • Experience with: Elastic Search, Smooks, Lucene, Jasper, Report
  • Domain driven design
  • Experience with NoSQL technologies: Casandra, Mongo DB
  • Experience with agile development practices (Eg Scrum) and continues integration environment
  • J2EE application and web containrs such as GlassFish, Jetty, Tomcat
  • CMMi-5 level process experience advantage

We Offer:

• Freedom to realize your own ideas & individual career & development opportunity.
• A motivating work environment, flat hierarchical structure, numerous company events which cannot be forgotten and fun at work place with flexibilities.
• Professional challenges and career development opportunities.

Java_FullstackDeveloper_DGT II

Position Responsibilities:
1.     Design, implementation, and deployment of applications
2.     Expert knowledge in performance, scalability, enterprise system architecture, and engineering best practices.
3.     Functionally decompose complex problems into simple, straight-forward solutions.
4.     Work extensively with cross-functional teams across.
5.     Work with the business team and project managers to convert functional requirements into detailed technical specifications.
6.     The ideal candidate will be a leader, builder, and operator. He/she should be able to operate in a very fast-paced environment where time to hit the market is supercritical.

Desired Candidate profile: 
1.     A Bachelor's/Master’s degree in Computer Science or equivalent combination of technical education from Elite College or institution and work experience.
2.     4+ years of Software Development experience.
3.     Excellent object-oriented design and coding skills (Java, C++ on a UNIX or Linux platform).
4.     Very strong software development background including design patterns, data structures, test-driven development.
5.     Ability to design and implement systems end to end on your own while maintaining highest coding standards.
6.     Excellent knowledge of design patterns and ability to reflect it in their code.
7.     Ability to lead projects and mentor junior engineers on the same.
8.     Mandatory work experience in skills sets: REST API, JDBC, RDBMS (PostgreSQL, MySQL)
9.     Solid Experience with distributed (multi-tiered) systems, algorithms, and relational databases.
10.  Software development experience in Servlet, JSP, Spring, AWS, S3, SQS, building web services and highly scalable applications or Google Cloud Suite.
11.  Excellent verbal and written communication skills.

We are looking for a Java 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/Java EE 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.

• 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

• BS/MS degree in Computer Science, Engineering or a related subject
• Proven hands-on Software Development experience
• Proven working experience in Java development
• Hands on experience in designing and developing applications using Java EE platforms
• Object Oriented analysis and design using common design patterns.
• Profound insight of Java and JEE internals (Classloading, Memory Management, Transaction management etc)
• Excellent knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate)
• Experience in the Spring Framework
• Experience as a Sun Certified Java Developer
• Experience in developing web applications using at least one popular web framework (JSF, Wicket, GWT, Spring MVC)
• Experience with test-driven development