Backend Engineer

Job Title: Java Developer

Java Developer – Job Description 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. - 4 to 14 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 clientfacing 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.

Job Role 

·  Position Title: Expert Java Engineer

·  Experience Range: 9 to 12 yrs 

·  Location: Pune 

Notice Period : Immediate Joiner

Must have Requirements

● 9+ years’ of experience working as a software developer.

● Strong proficiency in Java and Spring Boot.

● Strong experience in building applications that interact with relational databases using SQL.

● Some experience of Enterprise Java (J2EE / JavaEE / Spring) application architectures.

● History of delivering high-cadence modern applications with applied Agile methodologies, test-first development approaches, adopting CI/CD pipelines and using Git version control.

Minimum 7-12 Years of Core Java Programming with Collections Framework, Concurrent Programming, Multi-threading (Good knowledge in Executor service, Forkjoin pool and other threading concepts)

·        Good knowledge of the JVM with an understanding of performance and memory optimization.

·        Extensive and expert programming experience in JAVA programming language (strong OO skills preferred).

·        Excellent knowledge on collections like, Array List, Vector, LinkedList, Hashmap, HashTable, HashSet is mandate.

·        Exercised exemplary development practices including design specification, coding standards, unit testing, and code-reviews.

·        Expert level understanding of Object Oriented Concepts and Data Structures

·        Good experience in Database (Sybase, Oracle or SQL Server) like indexing (clustered, non clustered), hashing, segmenting, data types like clob / blob, views (materialized), replication, constraints,            functions, triggers, procedures etc.

• Design, develop, test and maintain backend services and APIs using Java and Spring Boot.

• Architect and implement microservices to ensure scalability and robustness of

applications.

• Create and maintain data pipelines to handle large volumes of data efficiently.

• Collaborate with cross-functional teams to gather requirements and deliver high-quality software solutions.

• Participate in code and design reviews to minimize rework and catch issues early in the process.

• Optimize and improve the performance, scalability, and reliability of our systems.

• Conduct code reviews and contribute to best practices in software development.

• Stay updated with the latest industry trends and advancements in Java and backend development technologies

• 8+ years of relevant work experience
• Well-versed in data structures, algorithms, and software design. Programming experience with at least one of
• Java or Python and object-oriented design
• Knowledge on SQL, NoSQL databases, Messaging/Caching technologies and AW deployments is a plus
• Exposure to the architecture and design (design patterns, security, reliability and scaling) of new and current systems. Experience in building highly scalable business applications, which involve implementing large complex business flows involving multiple third-party integrations
• Prior startup experience is a plus

Experience: 2.5 to 4 years

Location: Pune

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Qualifications

• 2+ years' of experience in web development using NodeJs technologies.
• B.E., B. Tech., Msc IT, MCA etc in Software engineering/ Information technology.

Responsibilities

• Write reusable, testable, and efficient code following best practices (unit testing, source control, continuous integration, automation, design patterns, etc)
• Debug and refactoring of existing code, troubleshoot problems
• Collaborate with other developers, testers and other leads to enhance to quality product enhancements
• Take full responsibility for the quality of the code and test cases that are developed.
• Integration of user-facing elements developed by front-end developers with server-side logic.
• Provide task estimations and deliver quality code on time.
• Participate in architectural, design, and product sessions.
• Interact with different stakeholders to gather feedback and clarification.
• Research and apply new technologies and best practices.
• Should enjoy the experience of mentoring new hires on technical and process areas.
• Must have hands-on experience in building Microservices based software architecture. Must have Unix /Docker /Kubernetes /NOSQL experience

Requirements

• Knowledge of ReactJS is preferable.
• Extensive knowledge of JavaScript.
• Thorough understanding of databases such as MySQL, MongoDB or similar technologies
• In depth knowledge of working with Git.
• Experience with Restful APIs, Postman etc.
• Understanding of AWS/EC2, or other cloud services.
• Object-oriented application building experience in a professional Agile/Scrum environment. 
• Good to have Unix /Docker/Kubernetes/NOSQL experience.

Skills

• Node.js
• AWS services
• Deployment 
• Unix /Docker/Kubernetes/NOSQL

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 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 : Mumbai (WFO only) Initial few months work from home

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 3+ 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.

· Well & good if has Experience with frontend technologies

· 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.

• 6+ years Java coding experience with immediate joiner
• Will be working closely with Product and Technology team
• Very good logical thinking and quick at learning and exploring new frameworks
• Hands-on with technology and providing POC
• Strong background culture of delivering projects with First time right and near-zero defects in production

Skill Sets: 

• Java Spring Boot 
• Micro Services architecture
• J2EE, JDBC, ORM Frameworks, JPA, NoSQL