Full Stack Engineer

Job Description: Full Stack Developer 

Role Overview

We are seeking a skilled Full Stack Developer with a minimum of 3+ years of hands-on experience in building modern web and mobile applications. The ideal candidate will have strong expertise in React and/or Flutter on the frontend, backed by Java based backend development, and the ability to work across the full software delivery lifecycle.

This role requires a pragmatic engineer who can translate business requirements into scalable, maintainable solutions while collaborating effectively with product, QA, and DevOps teams.

Key Responsibilities

• Design, develop, and maintain full-stack applications with responsive web and/or cross platform mobile interfaces
• Build and optimize frontend components using React and/or Flutter with a focus on performance and usability
• Develop backend services and APIs using Java (Spring / Spring Boot preferred)
• Integrate frontend applications with backend services via RESTful APIs
• Write clean, well structured, and testable code following best practices
• Participate in architecture discussions, code reviews, and technical decision-making
• Debug, troubleshoot, and resolve application issues across the stack
• Collaborate closely with designers, product managers, and other engineers
• Support deployments and work with DevOps pipelines where required

Required Skills & Experience

• Minimum 3 years of professional experience as a Full Stack Developer
• Strong experience with React and/or Flutter
• Solid backend development experience using Java
• Experience building REST APIs and integrating frontend with backend services
• Working knowledge of HTML, CSS, JavaScript, and modern frontend tooling
• Familiarity with relational databases (PostgreSQL/MySQL) and basic query optimization
• Experience with Git and collaborative development workflows
• Understanding of application security, authentication, and authorization concepts

Preferred Skills

• Experience with Spring Boot, Hibernate/JPA
• Exposure to Node.js or Angular
• Experience with cloud platforms (AWS preferred)
• Familiarity with CI/CD pipelines and containerization (Docker)
• Experience building offline capable or mobile first applications
• Prior work in enterprise or product based environments

Soft Skills

• Strong problem solving and analytical abilities
• Good communication skills and ability to work in cross functional teams
• Ownership mindset with attention to code quality and maintainability
• Ability to adapt quickly in a fast paced development environment

Experience Level

• 3+ years of relevant full stack development experience

Educational Qualification

• Bachelor’s degree in Computer Science, Information Technology, or a related field
• A Master’s degree or equivalent exper

Mandatory Skills

• Backend: Java, Spring Boot
• Frontend: Angular
• Database: Oracle / SQL
• Node js

Job Description

Contribute to all software-development life-cycle phases including: domain and non-domain problem analysis, solution requirement gathering and analysis, solution design, implementation, code review, source-code control, source building deployment, validation, QA support, and production support.

Essential Duties and Responsibilities

•⁠ ⁠Maintain and enhance multi-tier messaging application suites (Java EE, Springframework, WAS, Oracle, DB2, MQ)

•⁠ ⁠Build and maintain IRIS4Health middle-tier message applications (IRIS Interop/Cache; Java, Drools, Kafka, Restful, MLLP, SQL)

•⁠ ⁠Build and maintain multi-tier Clinical Toxicology application (Angular, Java EE, Springframework, WAS, RHOS, Cache, SQL)

•⁠ ⁠Maintain stat-tracking application (two-tier Delphi, MySQL)

•⁠ ⁠Maintain and enhance Cytogenetics three-tier application (Java EE, WAS, DB2, Oracle, SQL, )

•⁠ ⁠Maintain and enhance Fibrosure application (Java EE, WAS, Derby)

•⁠ ⁠Define develop, validate, and release software products via agile processes for small and large projects

•⁠ ⁠Support applications and people via Kanban processes

•⁠ ⁠Collaborate with laboratory users to analyze problems, design and implement solutions for enterprise systems

•⁠ ⁠Provide support and troubleshooting of production systems according to an on-call schedule

•⁠ ⁠Document problem analysis, solution design, implementations, and system support guidelines

•⁠ ⁠Coach and train team members across lab system organizations to support and develop Java applications

•⁠ ⁠Communicate effectively and constructively with developers, QA, business analysts, and system users

•⁠ ⁠Design and depict via UML relational DB table models, object-oriented class models, messaging models, configuration models

•⁠ ⁠Understand, document, support, and improve inherited code and processes

•⁠ ⁠Help document knowledge and discovery with peer developers

Minimum Requirements

•⁠ ⁠Solid Java EE experience (Servlets, JMS, JSP, EJB, JCA, and JPA) development and support

•⁠ ⁠Solid InfoSystems Cache/IRIS for Health development and support

•⁠ ⁠A minimum of 1 years of JPA/ORM (Hibernate), Junit, XML/XSD, JSON experience or equivalent

•⁠ ⁠Solid SQL (and optionally PLSQL) experience

•⁠ ⁠Experience with Oracle DB including explain plan and or other query optimization techniques/tools

•⁠ ⁠Excellent verbal and written communication skills

•⁠ ⁠Strong UML modeling, ER and OO design, and data-normalization techniques

•⁠ ⁠Strong code-factoring philosophies and techniques

•⁠ ⁠Eclipse or NetBeans (or equivalent) IDE

•⁠ ⁠Strong understanding of client/server design, and smart recognition of separation-of-concern like functional behavior versus non-functional performance

Desired Requirements

•⁠ ⁠Java EE, Angular

•⁠ ⁠InfoSystem's Cache and/or IRIS for Health

•⁠ ⁠Springframework

•⁠ ⁠Modern deployment architectures using containers, API Gateways, load balancers, and AWS cloud based environments

•⁠ ⁠WebSphere or WebLogic, RHOS

•⁠ ⁠RESTful Web Services

•⁠ ⁠JMS interfacing, Apache Kafka, and IBM MQ

•⁠ ⁠Node.js/NPM, Bootstrap, or similar frameworks

•⁠ ⁠Git/BitBucket (git flow), Maven, Nexus, UCD, Jira (Kanban and SCRUM), agile workflow

•⁠ ⁠Unix shell script, DOS script

•⁠ ⁠SQL (optionally PLSQL)

•⁠ ⁠Design patterns

•⁠ ⁠HTML5, CSS3, and TypeScript development

•⁠ ⁠Ability to transform specific domain requirements into generalized technical requirements, and design and implement abstract solutions that are understandable and scalable in performance and reuse

•⁠ ⁠HL7 and/or Healthcare and/or Clinical Toxicology

•⁠ ⁠Oracle, MySQL, Derby DB

We want a developer who has experience with Quickbooks API, who can create a self serve tool, which will map data from other accounting software to QBO

About Kloud9:

Kloud9 exists with the sole purpose of providing cloud expertise to the retail industry. Our team of cloud architects, engineers and developers help retailers launch a successful cloud initiative so you can quickly realise the benefits of cloud technology. Our standardised, proven cloud adoption methodologies reduce the cloud adoption time and effort so you can directly benefit from lower migration costs.

Kloud9 was founded with the vision of bridging the gap between E-commerce and cloud. The E-commerce of any industry is limiting and poses a huge challenge in terms of the finances spent on physical data structures.

At Kloud9, we know migrating to the cloud is the single most significant technology shift your company faces today. We are your trusted advisors in transformation and are determined to build a deep partnership along the way. Our cloud and retail experts will ease your transition to the cloud.

Our sole focus is to provide cloud expertise to retail industry giving our clients the empowerment that will take their business to the next level. Our team of proficient architects, engineers and developers have been designing, building and implementing solutions for retailers for an average of more than 20 years.

We are a cloud vendor that is both platform and technology independent. Our vendor independence not just provides us with a unique perspective into the cloud market but also ensures that we deliver the cloud solutions available that best meet our clients' requirements.

What we are looking for:

●  Overall 8+ Years of Experience in Web Application development.

●  5+ Years of development experience with JAVA8 , Springboot, Microservices and middleware

●  3+ Years of Designing Middleware using Node JS platform.

●  Good to have 2+ Years of Experience in using NodeJS along with AWS Serverless platform.

●  Good Experience with Javascript / TypeScript, Event Loops, ExpressJS, GraphQL, SQL DB (MySQLDB), NoSQL DB(MongoDB) and YAML templates.

●  Good Experience with TDD Driven Development and Automated Unit Testing.

●  Good Experience with exposing and consuming Rest APIs in Java 8, Springboot platform and Swagger API contracts.

●  Good Experience in building NodeJS middleware performing Transformations, Routing, Aggregation, Orchestration and

Authentication(JWT/OAUTH).

●  Experience supporting and working with cross-functional teams in a dynamic environment.

●  Experience working in Agile Scrum Methodology.

●  Very good Problem-Solving Skills.

●  Very good learner and passion for technology.

●  Excellent verbal and written communication skills in English

●  Ability to communicate effectively with team members and business stakeholders

Why Explore a Career at Kloud9:

With job opportunities in prime locations of US, London, Poland and Bengaluru, we help build your career paths in cutting edge technologies of AI, Machine Learning and Data Science. Be part of an inclusive and diverse workforce that's changing the face of retail technology with their creativity and innovative solutions. Our vested interest in our employees translates to delivering the best products and solutions to our customers.

• Should be able to design robust backend architecture using different technologies to retrieve data from the servers. 
• Creating databases and servers that are resistant to outages and work endlessly. 
• Ensuring cross-platform compatibility by creating applications that work on different platforms. 
• Based on the type of application the developer is responsible for the creation of API. 
• The developer is responsible for building flexible applications that meet consumer requirements. 

Must have: 

• Angular 6+ Experience is must 
• Java experience 
• Web application development (with API integration) experience 
• UI design and implementation skills 
• Quick Learner/Passion to learn 
• Good Communication skills 

Good to have: 

• Flutter experience is optional 

• B-Tech / B.E. from a reputed college / university

• Strong problem solving and analytical skills
• Good knowledge of Core Java, JSP and Servlet
• Fluency in programming constructs
• Good expertise in working with databases and Query language.
• Mature, thoughtful, and a natural fit for a collaborative, team-oriented culture
• Hard-working and eager to learn in a fast-paced, innovative environment
• Spring Boot & Microservices architecture
• Strong foundation and expert knowledge in the area of Core Java and J2EE standards.
• Sprint IOC & Spring MVC

• Experience with all levels of operation available to the front-end, such as from creating XHRs in vanilla JS to using a custom wrapper around $resource
• Proficiency with JavaScript and HTML5
• Creating custom, general use modules and components which extend the elements and modules of core AngularJS
• Experience in using build tools like Maven
• Knowledge of AngularJS practices and commonly used modules based on extensive work experience
• Creating configuration, build, and test scripts for continuous integration environments.

Position Summary

The Java Software Developer designs and develops computer applications using the Java programming language. Managing small-to-large scale projects, with respect to business impact, throughout the development life cycle. In this role, you can expect to leverage your 5+ years of Java engineering skills and knowledge to develop, test, and release features assigned to you and the Software Development team. You will be challenged daily to solve problems, expand your knowledge of the existing platform, and the technologies that can be used to continuously improve it.

Essential Functions

• Owns assigned projects throughout the development life cycle, from design through quality testing. Develops high quality code that delivers desired functionality using the technology selected for the project.
• Utilizes techniques including pair programming to ensure code quality. Additionally, maintains code quality through best practices, unit testing, and code quality automation.
• Supports continuous integration process.
• Collaborates closely with team members to determine best practices and client requirements for software.
• Develops intuitive software that meets and exceeds the needs of the company.
• Professionally maintains all software and provides regular updates that address client and/or company concerns.
• Analyzes and tests programs and products before formal launch. Addresses and troubleshoots coding problems quickly and efficiently to ensure a productive workplace.
• Ensures software security by developing programs to actively monitor the sharing of private information.
• Actively seeks ways to improve business software processes and interactions.
• When needed, provides valuable coaching and training for team members to ensure all employees are confident in the use of software applications.
• Regularly modifies software to fix errors, adapt to new hardware, improve overall performance, and/or upgrade interfaces.
• Directs system testing and validation procedures. Provides software programming and documentation development.
• Provides project proposals and project status updates to clients and departments, as needed. Prepares recommendations and project plans for the installation of new systems or modifications of an existing system.
• Works closely with clients and departments to resolve technical issues - including (but not limited to) software system design and maintenance.
• Regularly participates in an agile delivery process by helping size stories. Owns, researches, and recommends new solutions.

Skills and Abilities

• Excellent problem-solving skills and technical aptitude to solve complex issues.
• Proven ability to manage multiple high-priority projects.
• Excellent communication skills, both written and verbal.
• Ability to quickly adapt to a changing environment.
• Skilled in object-oriented (OO) design and design pattern.
• Skilled with Java 8 features, such as lambdas and streams.
• Demonstrated knowledge of API design standards, patterns, and best practices (especially Swagger and OpenAPI 3.0, REST, SOAP, MQ, JSON, Microservices etc.).
• Expert understanding of Spring Framework, Spring MVC REST, ORM/Hibernate and JDBC. As well as Hibernate/JPA and Object-relational mapping, including performance considerations.
• Experienced with RDBM systems: MYSQL Server, Oracle.
• Strong understanding of relational databases and writing SQL queries.
• Familiarity with the following front-end technologies: HTML, Javascript, CSS, Angular, Git, SQL, Maven

Experience

• Experience as a Java Developer, Java Engineer, or similar role required (i.e., Spring Framework / Spring boot and J2EE development required).
• Experience designing and developing REST API / web applications.
• Experience working with Agile methodologies (Scrum) and cross-functional teams (Product Owners, Scrum Masters, Developers, Designers, Business Analysts) a major plus.
• Advanced knowledge and experience in Cloud/SAAS integration, a plus.

Education

• Bachelor’s degree in computer science or a related field of study or equivalent level of education and experience.

What You’ll Do:

• Enable and exercise your problem solving and analytical skills.
• Design and develop Java/J2EE based full stack software components including complex modeling, MVC based UI, etc.
• Ensure applications are implemented to meet business and technical requirements.
• Work with high performing engineering teams across global locations.

.What You Need to Be Successful:

• Bachelor’s degree in Computer Science or equivalent.
• Solid 5-10 years hands-on design and coding experience.
• Familiarity with Agile development, JSF/Primefaces, JPA/Hibernate, Spring, ActiveMQ.
• Strong object-oriented design, Java/J2EE and MVC architecture based programming skills.
• Solid relational DBMS skills using MySQL, or other RDBMS products.
• Desirable - Experience in Big Data Technologies (Hadoop, ElasticSearch, Kafka, MongoDB, etc.)
• Nice to have - Real-world experience in large scale, and high availability implementations.
• Experience developing web services using REST and SOAP approaches.

Java, JEE, RESTful web service, Spring Boot/MVC, Hibernate,Angular/Angular js

• Has worked on Platform Modernization Project
• Troubleshoot and fix defects for planned releases and production issues
• Should have experience working in Development Project
• Should be result-oriented
• Should be able to work both independently and in teams
• Should have ability to multi-task and prioritize across multiple projects
• Should be flexible with work timings

No physical presence required for interview...All the process from interview to selection will be online…

Key Skills:

• Java, Java EE, Spring Boot, Hibernate, REST, Angular Js(2/4/5/6/7).

Job Summary:

• JAVA Developer Analyse Design and Develop Applications
• Must-Have experience in Java, J2EE, Webservices using SOAP, SPRINGS, HIBERNATE, Web Technologies, Rest full services etc.
• Experienced in client-side scripting and JavaScript frameworks, including Angular 2/4/5/6/7, jQuery, Css3, Bootstrap, HTML.
• Hands-on experience in Maven.
• Experience in Agile Development methodologies.
• Strong logical and reasoning skills with keen self-learning.
• Good in Logic
• You should be comfortable working in a team and have good communication skills.

Responsibilities:

• Write, clean, well-designed code, testable, efficient code.
• Must have a real-time exposure with object-oriented programming in Java, J2EE.
• Real-time exposure in Spring, Spring Boot, Hibernate framework, Angular Js(2/4/5/6/7).
• Collaborate with internal teams to identify system requirements.

Contact Person:- Naveen Kumar.