


Description
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.
Responsibilities
· 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
Requirements
· 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 (Class loading, 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

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Hi All,
We are looking for a Senior Full Stack Java Developer for Chennai and Coimbatore location.
Responsible for building full stack Spring applications using Angular / Bootstrap / JavaScript / Java / SpringBoot / JPA / SpringJDBC/ Hibernate / MySQL / SQL Server.
The primary responsibilities will be to understand the requirements, design and development of applications using industry standard best practices.
Skills & Qualification:
An engineering degree in computer science or electronics or others
Strong Design and Analytical Skills with good understanding of Design Patterns
Must have 4+ years of Java/Spring/JPA
Must have 3+ years of experience with Web API
Must have 3+ years of experience with Angular 12, Bootstrap , JQuery , JavaScript
Strong working Experience in application development using client-side technologies like Bootstrap/HTML/Java Script/CSS/AJAX/JQuery Strong understanding of Microservices architectures
Must have 4+ years of experience working with Spring, Springboot, REST API, JPA and Hibernate
Must have 4+ years of experience working with SQL Server, MySQL and other Databases
At least 3+ years of working with Tomcat / Jboss or other application server
Experience working with SOAP Web Service with WS-Security
Strong knowledge of HTTP/HTTPS, XML, XML Schemas, XSLT, JSON, RESTful Web Services
Strong Knowledge of WS-Security, OAuth, JWT is required
Agile development experience is preferred
Good Communication and presentation skill


Job Responsibilities
· Responsibilities for this position include but are not limited to, the following.
· Development experience 3-6 years
· Experience working with Azure cloud-hosted web applications and technologies.
· Design and develop back-end microservices and REST APIs for connected devices, web applications, and mobile applications.
· Stay up to date on relevant technologies, plug into user groups, and understand trends and opportunities that ensure we are using the best techniques and tools.
- Meeting with the software development team to define the scope and scale of software projects.
- Designing software system architecture.
- Completing data structures and design patterns.
- Designing and implementing scalable web services, applications, and APIs.
- Developing and maintaining internal software tools.
- Writing low-level and high-level code.
- Troubleshooting and bug fixing.
- Identifying bottlenecks and improving software efficiency.
- Collaborating with the design team on developing micro-services.
- Writing technical documents.
- Be an active professional in continuous learning resulting in enhancement in organizational objectives.
- Provide technical support to all internal teams and customers as it relates to the product.
Requirements:
- Bachelor’s degree in computer engineering or computer science.
- Previous experience as a full stack engineer and IoT Products.
- Advanced knowledge of front-end languages including HTML5, CSS, JavaScript, Angular, React.
- Proficient in back-end languages including Nodejs and basic knowledge of Java, C#.
- Experience with cloud computing APIs and Cloud Providers such as Azure or AWS.
· Working knowledge of database systems (Cassandra, CosmosDB, Redis, PostgreSQL)
· Messaging systems (RabbitMQ, MQTT, Kafka)
· Cloud-based distributed application scaling & data processing in the cloud
· Agile / Scrum methodology
- Advanced troubleshooting skills.
- Familiarity with JavaScript frameworks.
- Good communication skills.
High-level project management skills.


- Work with development teams and product managers to ideate software solutions
- Design client-side and server-side architecture
- Build the front-end of applications through appealing visual design
- Develop and manage well-functioning databases and applications
- Write effective APIs
- Test software to ensure responsiveness and efficiency
- Troubleshoot, debug and upgrade software
- Create security and data protection settings
- Build features and applications with a mobile responsive design
- Write technical documentation
- Work with data scientists and analysts to improve software


Python experts for NSO work
- Strong coding Experience in programming language like Python (Minimum 5+ years of experience)
- Proven hands-on Software Development experience
- Proven working experience in Python development
- Hands on experience in designing and developing applications using Python platforms
- Object Oriented analysis and design using common design patterns.
- Profound insight of Python Java and JEE internals
- Knowledge of Yang data modelling, Netconf (Must) and XML
- Knowledge on REST/ SOAP API's
- Basic knowledge of Networking i.e., MPLS, L3 VPN.
- Bachelor's degree in computer science or equivalent
- Very strong aptitude and reasoning
- Ability to break complex problems into parts and solve them
- Must be able to communicate thoughts clearly to the team
- Good understanding of various database i.e., Mongo DB, MYSQL.
- Good understanding of the DevOps tools Jenkins, GitHub for version controlling.
· Knowledge on NSO


Company: 3i Infotech Ltd
Location: Mumbai / Hyderabad
Job type: Full Time, Work from office
Looking for Core Java, Micro services, Spring Boot, Hibernate, Angular
Open Positions: Java Full - Stack Developer || 3 to 6 years exp – (Full stack 8)
Immediate Joiners
CTC: - 10 LPA
JD for Java Developer
Must Have Skills : Core Java ,Microservices , Angular8, Spring boot framework
Minimum 4-8 years of experience in design, development, and deployment of JAVA/J2EE-based applications, writing PL/SQL queries/store procedures.
Strong hands-on experience in design, development, and deployment of J2EE based application database design, PL/SQL complex queries, and Store procedures XML, HTML, JavaScript, AJAX
- Expertise on XML, HTML, JavaScript, AJAX
- Proficient in handling and writing complex PL/SQL queries and Stored procedures
- preferable work experience on JBOSS as an application server or any other J2EE application server
- Should have sound knowledge in product customization, implementation, and maintenance aspects
- Foresighted & good judgment in problem-solving.
- Capable of paying attention to detail.
- Good analytical and logical thinking.
- Prioritizing and organizing
- Team Player with a positive attitude.
- Process knowledge/Technical expertise
- Good Written and Verbal communication Skills
- Proficiency in Java, with a good understanding of its ecosystems
- 2+ Yrs experience in microservices
- Sound knowledge of Object-Oriented Programming (OOP) Patterns and Concepts
- Familiarity with different design and architectural patterns
- Skill for writing reusable Java libraries
- Know how 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
- 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 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
- Other required skills of a java developer include the basic knowledge of:
- JavaServer pages (JSP) and servlets
- Web frameworks like Struts and Spring
- Service-oriented architecture
- Web Technologies like HTML, JavaScript, CSS, JQuery
- Markup Languages such as XML, JSON
- Abstract classes and interfaces
- Constructors, lists, maps, sets
- File IO and serialization
- Exceptions
- Generics
- Java Keywords like static, volatile, synchronized, transient, etc
- Multi-threading and Synchronization

- Looking for 0-30 Days and Notice Period Serving resources (Across the Globe)
- 4-13 years developing n-tier modern software applications in a highly transparent agile organization with iterations, continuous integration, and a drive for quality
- At least 4 years of experience in software development building Web Services in Java, SpringBoot, Elasticsearch, and Open source technologies
- At least 4 years UI programming experience with JavaScript, CSS, JSON
- At least 3 years using ReactJS or VueJS, jQuery and Bootstrap, or similar frameworks
- Experienced in service layer integration (e.g. data, authentication, 3rd party systems) using Ajax and REST APIs.
- Experienced in UI and backend unit testing, functional testing, and performance testing tools.
- Must have experience building responsive web applications and related best practices.
- Experience in building Micro Services using cloud native environments like Azure, Spring Cloud, AWS or GCP with sound understanding of Micro Services Design Patterns
- Strong interpersonal, written communication, and presentation skills
- Experience with real-time streaming processing (Kafka/Storm) is preferred
- Proven ability to design and implement web services in a RESTful manner, along with understanding our broader service-oriented architectures
- Proven ability to work within a cross functional agile team
- Must be a self-starter and able to work well with others in a fast-paced agile environment with an emphasis on collaborating and assisting the team to meet business objectives
- Ability to use tools such as JIRA, Git, etc. preferred
- Experience with containerized environments such as PCF, Docker, etc. is highly desirable



- Working on the frontend technologies as well as building the APIs that enable them. You will be working closely with the founders, coding and learning as you go.
- Growing and leading the team, as well as influencing the direction of the company. You will have an opportunity to grow exponentially as the company grows in terms of in-depth knowledge, skills and also growth in terms of position and compensation.
- Participating with the senior developer in the entire application lifecycle, designing, coding, testing, debugging to deployment.
- Implementing designs and coordinating the frontend development and required backend for it.
- Working on back-end development tasks and designing architecture for the same.
- Making Efficient usage of database technologies such as MySQL, MongoDB, Elasticsearch, Redis etc. as part of the dev work.
- Performing research and finding opportunities to utilise web development best practices, forming guidelines to improve system productivity, and working on scaling and monitoring.
- Working with cross-functional teams to maintain and make sure the product should be scalable, maintainable and secure.
- Coordinating with multiple junior team members for the development of the tasks & project
- Developing user interface components and implementing them following well-known React.js workflow.
- Architecting the application out in clean MVC kind of architectures in React Native for Android/ iOS app development.
- Developing APIs with MVC frameworks in Java / Python.
- Designing and building REST APIs.
- Building on and maintaining services on cloud platforms.
- Building reusable code and libraries for future use.
What you need to have:
- Bachelor's degree in Computer Science or related field.
- Tier 1 Software companies or Tier 1 startups
- 3+ years of experience working as a Full-stack developer or Backend but knows Frontend technology.
- Proficiency in JavaScript Framework like React and thorough knowledge in CSS skills is an added advantage.
- Built an application from scratch earlier.
- Strong fundamental knowledge of any backend language such as Python, Java etc.
- Experience with Backend Web development.
- Strong computer science fundamentals.
- The ability to own end to end responsibility - right from requirement to release.
- Willingness and enthusiasm drive to learn new technologies.
- The ability to pick the right tools for the job.
- Desire and ability to play different roles as necessary.




