Java Developer

Job Title: Associate Backend Engineer

Job Summary:

We are looking for an enthusiastic and motivated Associate Backend Engineer with 1 to 2 years of experience to join our growing engineering team. Whether you're a recent graduate or have some industry experience, this role offers a strong foundation to grow your skills in real-world backend development. You’ll work closely with experienced engineers and contribute to the design, development, and maintenance of scalable backend systems that power our products.

This position is ideal for individuals who are eager to learn, write production-grade code, and grow into a high-performing backend engineer.

Website: https://www.thealteroffice.com/about

Key Responsibilities:

• Assist in building and maintaining backend services and APIs for web and mobile applications.
• Work with both relational (MySQL, PostgreSQL) and NoSQL (MongoDB, Redis) databases for data modeling and storage.
• Write clean, maintainable, and well-documented code under guidance.
• Contribute to authentication, authorization, and other core backend features.
• Collaborate with cross-functional teams including product, frontend, and QA to deliver complete features.
• Participate in code reviews and incorporate feedback to improve code quality.
• Debug issues, write unit/integration tests, and help maintain service reliability and performance.
• Learn to work with CI/CD pipelines, version control (Git), and deployment workflows.
• Use tools like Docker, basic cloud services (AWS/GCP/Azure), and optionally explore monitoring/logging tools.
• Explore new technologies such as GraphQL, WebSockets, or message queues (e.g., Kafka, RabbitMQ) when relevant.

Requirements:

• 1 to 2 years of backend development experience, including internships, academic projects, freelance, or open-source work.
• Familiarity with at least one backend programming language (e.g., Python, Java, Go, JavaScript, etc.).
• Basic understanding of RESTful APIs, HTTP, databases, and server-side logic.
• Exposure to SQL and NoSQL databases and understanding of CRUD operations.
• Familiarity with Git and fundamental development workflows.
• Willingness to learn and apply best practices in scalability, security, and asynchronous programming.
• Strong problem-solving mindset and eagerness to take feedback and grow.
• Good communication and collaboration skills in a team environment.

Greetings from Wissen Technology!

We are hiring Java Developers for Mumbai location.

Exp - 4 - 8 years

Location - Mumbai (Goregaon) - Hybrid

Notice Period - immediate or serving notice period only

Interview Process - Initial rounds virtual + Final round F2F

Software Engineer/Senior Software Engineer/Lead Engineer-Java

· Experience in Core Java 5.0 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.

Job Brief-

·        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 guidelines

Requirements:

• 4-6 years of experience in developing Enterprise Web Applications using Java/J2EE technologies with a good professional track record.
• Excellent knowledge in Core Java (J2SE) and J2EE technologies.
• Proficient knowledge in Servlets, JDBC & JSP.
• Good knowledge of Spring framework (MVC, Cloud, Data and Security. Etc) and ORM framework like JPA/Hibernate.
• Strong knowledge of Exception Handling, Collections, File I/O Streams, Interfaces, and logging mechanisms is a must.
• Experience in developing REST APIs and integration of third-party APIs.
• Proficient knowledge in SQL/PLSQL.
• Expertise in application/web server deployment and connection pooling techniques.
• Cloud deployment (AWS & Azure) will be an added advantage.
• Experience in Version Control tools like Git, Bitbucket, etc.
• Experience in data security and protocols is a must.
• Maven and IDE tools experience is a must.
• Multi-threading and serialization techniques knowledge is a must.
• Good understanding of end-to-end software development lifecycle.
• Ability to read and understand requirements and design documents.
• Good Analytical skills and should be self-driven. Good communication with interpersonal skills.
• Open to learning new technologies and domains.
• A good team player and ready to take up new challenges
• Languages: Java(J2SE), J2EE (Servlets, JSPs, JDBC)
• Databases: MySQL, Oracle, SQL Server, PostgreSQL.
• DB Script: SQL and PL/SQL
• Frameworks: Spring, Spring Boot, Jersey, Hibernate and JPA
• OS: Windows, Linux/Unix.
• Cloud Services: AWS and Azure (Good to have)
• Version Control tools: Git, Bitbucket.
• Deployment Servers: Tomcat, JBoss, and Web sphere
• Build Tools: Gradle/Maven

Requirements

• 2+ years of experience in the Development of JAVA technology.
• Strong Java Basics
• Linux
• SpringBoot or Spring MVC
• Hands-on experience in Relational Databases (SQL query or Hibernate) + Mongo (JSON parsing)
• Proficient in REST API development
• Messaging Queue (RabitMQ or Kafka)
• Microservices
• Java 8
• Any Caching Mechanism
• Good at problem-solving

Good to Have Skills:

• 2+ 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 AI/ML algorithms is a plus.

Java Developer Requirements

·        Minimum 7 to 15years of experience in Java/J2EE

·        Outstanding skills in Java Struts, JSP, Hibernate

·        Capability to understand DB design, SQL queries

·        Experience in JavaScript, JQuery, JSON and AJAX

·        Strong Object Oriented Analysis and Design skills

·        Knowledge in source version control such as GIT

·        Understanding on Agile methodologies

No of Opening: 7

Location: Chennai/Madurai (WFO)

·        Degree in Computer Science or related field.

·        Experience with user interface design, database structures, and statistical analyses.

·        Analytical mind-set and good problem-solving skills.

·        Excellent written and verbal communication.

·        Good organizational skills.

·        Ability to work as part of a team.

·        Attention to detail.

Role/ Responsibilities

• Lead a team of hard working backend developers. 
• Design APIs, DB, Queues, monitoring for micro services. 
• Writing, deploying and managing micro services. 
• Migrate existing components into distributed micro service architecture. 
• AWS Cloud / Google Cloud Platform (Manage Infrastructure). 
• API integration with 3rd parties. 
• Unit test cases, automation. 
• Database optimisation. 
• Design of highly concurrent backend architecture. 
• Handling high traffic data. 

Experience required: 

• Sound fundamentails in software design. 
• Must have worked on distributed and micro service architecture. 
• Sound fundamentals on scale/ performance/ memory optimisation. 
• Sound fundamentals of authentication, authorization, payment processes, data security. 
• Must have experience in Spring / Spring boot. 
• Good to have experience in Kafka / JMS / RabbitMQ / AWS Elastic queue. 
• Good to have experience in Junit / mockito unit test cases. 
• Good to have knowledge in Mysql (or any RDBMS). 

About us:

NetCracker Technology, a subsidiary of NEC Corporation, is the leading provider of BSS/OSS solutions to service providers around the world. From billing, customer care, and real-time charging and policy solutions, to resource and network management, service fulfillment & assurance, our comprehensive software and services capabilities enhance the customer experience through content-rich offerings and reduced costs.

NetCracker's innovative end-to-end BSS/OSS solutions enable service providers to operationalize next-generation connectivity, maximize the convergence of Network and IT, monetize content, and deliver a compelling customer experience.

Founded in 1993, NetCracker became a subsidiary of NEC Corporation in 2008 and acquired the Convergys Information Management division in 2012. We are CMML 5, Product based company. 

Job Responsibilities:

• Work as a member of development team towards the Product Suite
• Estimating efforts and duration on development
• Involved in solution implementation projects
• Interaction with Business Analysts, Quality Assurance and Customer Support teams
• Provide expertise and best practices on technical aspects of product development and implementation projects including performance
• Introduce new development technologies, instruments and techniques

Job Requirements:

• Experience in writing technical design and development of the application
• Good understanding and hands-on work experience in Core Java/J2EE & concepts such as OOPS, multithreading, Collections, Concurrency, Exception Handling, JDBC, File I/O, XML APIs etc
• Should have worked on Java 1.8
• Design skills –Design Patterns, hands on in restful services
• Working experience on spring core
• Hands on in writing complex SQL queries
• Knowledge of web-services (REST and SOAP);
• Familiarity with NOSQL [eg. Mongo DB] is preferred;
• Familiarity with message queues like Kafka.
• Know-how on containerization applications like Docker, Kubernetes is preferred.
• Proficient understanding of code versioning tool – SVN.
• Hands-on experience in writing Unit tests using Junit.
• Working experience in Jenkins, Maven, SonarQube.
• Experience in tuning applications based on Performance tests/ Load tests/ Stress tests is preferred.
• Knowledge of development lifecycle, standards, approaches, utilities and environment: shells, IDEs.
• Familiarity with JIRA / JQL is an added advantage 

Experience:

• 5 to 11 years of core development / Product experience

Education:

• BE/Btech/MCA