More than 14 years of experience on Java/JEE, PHP, C, C++, Perl, Shell Script, JavaScript MySql and Oracle technologies. An experienced Software Engineer/Architect with having strong R&D[Research & Development] background. Enjoy working on research based development, creating API/SDK, application framework and performance engineering, testing, code profiling, code optimizing, query optimizing, team and project managing. Experienced in designing Cloud computing/service, Semantic web, Sensor network, Ontology, SSO/Identity management, Asynchronous architecture, Mobile based App[Android] Data collector[xForm], Asterisk[AMI/AGI] based interactive IVR application, mHealth, e-Education, disaster and early warning system, Courier & Freight Software, Warehouse & Retail Supply Chain Software, Corporate Mailroom Software, Travel Software, Billing software and Web Bot. Wide and deep knowledge in Java/JEE Technology & OOP Architecture, REST/RESTful architecture, design patterns. Experience in Business intelligence and Reporting Tool. Workflow and BPMS. RDBMS. Solid background in Object-Oriented analysis and design UML, Design Patterns, Architecture Patterns and Software development methodology (Agile/SCRUM/TDD). Technical experienced on Java/JEE, EJB3.0, Spring, Hibernate, JPA, JSF, RichFaces , PrimeFaces Wicket, Struts, DWR, GWT, AngularJS, PhantomJS, Android, HTML, CSS, JS, jQuery, JAX-WS, JAX-RS, SOAP, Maven, Gradle, Jenkins , CloudBees, Google App Engine, Amazon AWS, jBPM , ESB, Node.js ,MySQL, ORACLE, PostgreSQL, SQL Server, MongoDB etc My preference to work on long term project. It could be hourly or fixed price job but hourly job is my first preference. I would like to maintain trustworthily long term relationship through good work. If anyone is there on the same page and match my criteria please poke me for further... More details about technical skills --------------------------------------------------------------------- Programming Languages: J2EE/J2SE/J2ME, Scala, JRuby, C/C++, Assembly, HTML/HTML5 /DHTML/ XHTML, JavaScript, Ajax, XML/XSL, PHP, Android. Frameworks & Toolkits: Spring, EJB3.0, JPA, Hibernate, S2Dao, S2Hibernate, Seasar, JSF, RichFaces, PrimeFaces, Wicket, Struts, DWR, SWT, GWT, Facelets, MIDP 2.0, JavaRosa, Smarty, ADODB, Yii, CodeIgniter, Laravel, Node.js, Dojo, jQuery, AngularJS, PhantomJS. GUI's: SWT, Eclipse RCP & RAP, JFace, Swing/JFC, AWT, JavaDesktop, Java2D, JGoodies. Databases: Oracle, MYSQL, PostgreSQL, MongoDB, SQL Server, JavaDB, FireBird, HSQL Template Languages: Apache Velocity, Handlebars, Nunjucks Build and Logging Tools : Apache Ant, Maven, Gradle , Jenkins , Log4j, gulp, Liquibase Application Servers: Glassfish, Tomcat, WildFly, WebLogic, Jetty Testing Tools: Selenium, JUnit, EasyMock, Mockito, Mercury LoadRunner, JMeter, BlazeMeter. XML's: XML (Dom, Xerces), XPath, Schema, XSD, RDF, Xform (openrosa & javarosa). Workflow (BPMS) & ETL: jBPM, Kettle, Talend. Business Intelligence & Reporting Tool: Eclipse BIRT, Pentaho, JasperRepors. IDE's: Eclipse, NetBeans, IntelliJ, MyEclipse Project Management Tools: SFEE (Source Forge Enterprise Edition), Subversion, Mylyn, Version One, Target process, JIRA, WorkFront, Asana, Redmine, CVS, SVN, GIT, Marcural Methodologies: RUP, Agile, XP, Scrum Operating Systems: Sun-Solaris-x86(10), Linux Family (Redhat/obuntu/Suse), Windows Family (NT/XP/98/2000/2003, vista).

⭐ Top Rated Plus ⭐ 100% Job Success ⭐ 6000+ Upwork hours ⭐ 40+ Job's Successful Completed I am a Java professional with 10 years of experience. I have strong understanding and knowledge of the object-oriented approach, software engineering principles, concepts, and with practical knowledge on designing, building scalable applications with Monolith and micro-service model. I have grip on architectural design technique using the Domain-Driven Development approach (DDD), Test Driven Design(TDD). All these years i got chance to work on Financial, Healthcare, ERP, Customized CRMs, Order Management and Logistics solutions. My technology stack is : ✅ Back-End: Java, Spring Boot, Spring Security, MVC, Hibernate, JPA, JDBC, J2EE, Servlets, Web Services ✅ Front-End: Angular, HTML5, CSS3, JavaScript, JSF, JSP ✅ Middleware: Apache ActiveMQ, Kafka ✅ Cache: Apache Ignite, Redis ✅ Databases: RDBMS (MySql, Postgre SQL, MSSQL, Oracle), noSql (MongoDB)

🏆 Top 2% on Upwork 🎯 Liferay DXP 7.1 Certified Professional Back-End Developer 🌟 Dedicated freelance with 100% Job Completion. Grow Your Business without Pain and Stress. My main goal is to help my clients achieve the best results possible. If they can't contribute value to their business by involving me, they can't pay me. I have a strong promise that no other freelancer does. 💎 WE GUARANTEE YOU RESULTS. __________________________________________________ ✅ Invested in the success of your project ✅ Discussed and confirmed delivery by the deadline ✅ Instant reply via Upwork messenger ✅ Flexible time to meet or discuss your questions ✅ Dedicated to the project long term ✅ Value your time __________________________________________________ ✅ Facts about me -I am providing end-to-end solutions for Portal & Enterprise applications. Experienced in all phases of the Software Development Life Cycle like requirement analysis, design, development, testing, deploying, and maintaining applications. - I can develop projects from scratch until the final delivery and support with maintained code quality and proper code coverage - I can manage the team, do code reviews, handle CI/CD and releases, support live systems - I can understand and implement the most difficult parts of software systems at very large-scale. 💎 My Core Expertise: ------------------ ☆ Liferay development/customization ☆ Web Application Development ☆ Mobile application development ☆ CRM/ERP/HRMS solutions development ☆ Enterprise solution development ☆ SaaS Enabled application development ☆ E-Commerce application development ☆ Maintenance and enhancement of existing application 💎 Skills: - ------------------ ☆ Liferay 6.x/7.x ☆ Spring, Spring Boot, Hibernate ☆ JSF, Primefaces, ICEfaces, Richfaces ☆ Java & J2EE ☆ Maven, Ant, Gradle ☆ Blade CLI ☆ MySQL, MSSQL, PostgreSQL, MongoDB ☆ Java-based servers - JBoss, Tomcat, Glassfish ☆ Apache Solr ☆ Elastic Search ☆ SVN, GIT, GITLAB, Bitbucket ☆ REST, SOAP web services ☆ JQuery, Javascript, Ajax ☆ Front-end technologies - AngularJs, ReactJS, NodeJs, HTML4/5, XHTML, XML ☆ Excellent technical and logical problem-solving skills ✅ What my clients says ⭐⭐⭐⭐⭐ "I’ve been working with Bhavin Panchani for about a year on our company’s Liferay-based customer portal. Bhavin is always very professional and organized, but also communicative and easygoing. He is super knowledgeable with the Liferay platform but also works on other technologies that we use with no problem at all, and in a timely manner. I can see that he really cares about our product and is directly responsible for its success. Thanks, Ignek Infotech" 👤 Vivivenne Nurnberger ( Consultant for User Research and Agile Methods ) ⭐⭐⭐⭐⭐ "The IGNEK team knows what the client asks. In terms of response time availability and meeting schedule, they are always on time, they are always responsive, available for meetings, work quickly, and of course, deliver high-quality products successfully. Highly recommended!" 👤 Rick Van Dijk ( Founder at PickurGift )

**EXPERT VETTED BY UPWORK and among Top 1% talent on Upwork** I am a Full-Time Freelance IT consultant with more than 12 years of rich and varied experience in providing solutions to clients in various domains in the form of – • Full stack web application development • Enterprise applications development • Backend web services development • Desktop application development • Cloud infrastructure development I have extensive experience of developing applications in - Java, J2EE, Spring, JPA, Hibernate, Angular, Typescript and React Framework. BACKEND DEVELOPMENT - I have worked upon and developed backed of at least 100 different applications to date, which involves extensive experience working with Event Driven Architecture, Micro services architecture and Backend Web Services development. I also have strong hands-on experience and rely heavily upon TDD and BDD approach of Software development FRONT-END DEVELOPMENT - At the front-end, my expertise lies in working with – • JSP • JSF • Vaadin • JavaScript • HTML5 • CSS • Ajax • Bootstrap DESKTOP APPLICATION DEVELOPMENT - I have strong knowledge and experience of working with and developing Desktop applications using Java Swing and JavaFX. I have experience in developing applications for Mac, Windows as well as Linux. CLOUD INFRASTRUCTURE DEVELOPMENT - • 9x AWS Certified and "Microsoft Certified" Azure Solutions Architect Expert. • Extensive experience with using Docker, Kubernetes, Terraform. • Dockerisation and Orchestration, automating CI/CD Pipelines, VPN Setup, Monitoring and Logging, Cloud Cost Optimisation are my Forte. • Active user of AWS and Azure and excellent in picking cost-effective and secure solutions using these platforms. OTHER PROFICIENCIES - • Skilled in SQL as well as NoSQL programming. - Relational Databases - Postgres, MySQL, SQL Server, Oracle and DB2. - Non-Relational databases - MongoDB, DynamoDB • Skilled with ElasticSearch and Redis SOFT SKILLS – • Individualistic personality – who likes to find solutions. • Strong work ethic - my past work can vouch for this. • Positive attitude- comes in handy, while solving complex problems. • Excellent command over English language. • Excellent Communication skills. • Believes in Team work and joint efforts - can mingle into your current team easily. • Leadership skills - can lead and take up responsibility, even in difficult situations. • Highly dedicated personality - I don’t get bogged down by hiccups, and work to sail my way through them. As I am working in a highly dynamic field, so I keep updating myself with latest trends and developments in the field of software development, thus ensuring HIGH VALUE WORK for my clients. My technical capabilities, hardworking nature and past record of providing value to my clients can be vouched by client reviews on my profile. Thanks & Cheers!

Extensive Experience in Java, Spring boot and angular, Knowledge of AWS and Google cloud, Worked on multiple projects in different technologies with quality work & good client feedback. Requirement analysis: 1. Understand business requirements perform analysis and share thought / Feedback and High-level approach. Design & solution: 1. Work on the high and low-level design with Technology stack require for development 2. Work on POC to prove the solution approach and design. 3. Estimate for solution, analysis & development effort. Backend: Java, Spring, Spring Boot, JPA, Spring cloud, Nodejs Frontend : Angular , React js , HTML 5.0, CSS 3.0 Database: Database Design, Mysql, MSsql, Oracle, PostgreSQL, Amazon DynamoDB, MongoDB, Redis. Code Quality: SonarQube Installation, administrator, and user. DevOps & Build Tool: Jenkins, Docker, Webpack, NPM, Gradle, Maven. Cloud: AWS, GCP Server: Tomcat 7.0, WebLogic 10.3, and JBoss 5.0 server. Event & Messaging : Kafka. Testing : Automation testing using Cucumber, Selenium, TestNg & Selenium Grid.

As a Software Engineer with more than 10 years of professional experience I have been working on many different projects as a team member, leader or individually. Used to work in multicultural distributed teams, follow agile approaches and work with cutting edge technologies. Capable of doing a lot of work in a short time which led me to be great in developing MVPs. Expertise: Java, Kotlin, Spring, Angular, NestJS, ReactJS, SQL Skills: Javascript, Git, Maven, Docker, DevOps, AWS, Android, PL/SQL I have master degree in Electrical and Computer Engineering from University of Novi Sad in Serbia and certificates: Oracle SQL Expert and Oracle Java Associate Certificates. I am passionate and committed about coding, like solving problems and favour open source. Above all ready to accept any challenge and transmute your ideas to the reality.

Over 20 years of experience developing enterprise systems with an interest in systems integration and infrastructure. Great interpersonal relationship and teamwork skills, wish to learn, objectivity, positive and constructive profile. Specialties: - Java, JSF2, JSTL, Web services, REST, Spring Framework, Hibernate, NoSQL, JavaScript, HTML. - Kafka, RabbitMQ, batch processing - Spring Boot, Spring Security, Spring Batch, Spring Cloud Gateway - Postgres, MySQL, Oracle, NoSQL, Redis - AWS - CICD pipeline, EC2, ECS, Codebuild - DevOps - Linux, Docker, NGINX, Tomcat, JBoss, Glassfish, Websphere - CI - Maven, Gradle, Jenkins - Frontend - Svelte, Vue.js, JSF2, Primefaces - Desktop development (JavaFX) - Application tuning and troubleshooting

🏅 Top Rated Freelancer Hello !!! I’m a Software Engineer specialised in Backend Development with over 6+ years of working experience mostly working on Spring Framework. Hands-on design, development, implementation, and optimisation of the application. Use Object-oriented techniques and Software engineering best practices including Design review, Code review, and Code re-factoring. Experienced with the full Software development life cycle (SDLC) including - Requirement gathering - Prototyping (Design, Development & Debugging) - Testing and - Deployment Good experience in Agile software development methodologies (Scrum, Sprint plan, Timeline, etc.). The strong idea about the deployment process and tools like Maven, Jenkins. 🌟 My Specialization 🌟 ✅ Java (8, 11 & 17): JavaSE, JavaFx, JDBC, Swing, Java Beans, Java Mail. ✅ Java Ee Family: EJB, JPA, Hibernate, CDI, Servlets, RESTful Services (JAX-RS), SOAP Services (JAX-WS), Apache CXF & Bean Validation. ✅ Java Ee Web: JSF, JSP, Thymeleaf, Bootsfaces & Primesfaces. ✅ Spring Family: Spring MVC, Spring Boot (Data, Rest, Vault, Security & Cloud [Microservices etc.]). ✅ SQL: MySQL, PostgreSQL, MariaDB & Oracle ✅ NoSQL: MongoDB & Redis ✅ AWS: IAM, EC2, S3, RDS, Lambda, Elastic Beanstalk etc. ✅ Oracle Cloud Infrastructure (OCI): Compute Service & Autonomous JSON Database ✅ Message Queues: ActiveMQ & RabbitMQ. ✅ Networking: WebSocket (Stomp & SockJs), Socket & RMI. ✅ Testing: JUnit, Spring Test, Mockito, Integration Test, Unit Test. ✅ Versioning: Git, Github, BitBucket & VisualSVN. ✅ DevOps: Docker, Docker Compose & Jenkins. ✅ Web: HTML, CSS, SASS, Javascript, React Js, Bootstrap & Material UI. 🌟 WHY CHOOSE ME OVER OTHER FREELANCERS? 🌟 ✅ Client Reviews: I focus on providing VALUE to all of my Clients and Earning their TRUST. The Client Reviews and Feedback on my Profile are critical to me. ✅ Over-Delivering: My focus is on PROVIDING more than what I expect to RECEIVE. I take pride in leaving all of my Clients saying "Great Work." ✅ Responsiveness: Being responsive and keeping all lines of communication readily open with my Clients.

I am from Ukraine but due to war live in Spain I've been professionally developing software for the last 11 years I have a master's degree in Computer Science and an AWS Solution Architect certificate Message me to get a FREE consultation or app estimation What we generally can do: ✅ elicitate requirements (functional, non-functional) ✅ prepare an architecture ✅ plan a project: estimate, roadmap ✅ setup a team ✅ software web development ✅ Web 3.0/Blockchain development ✅ project/team management ✅ deployment (AWS, Azure, etc) ✅ project maintenance ✅ system audit & consulting Below is for Upwork search engine: ✅ Domain experience: Airline, Transportation, Real Estate, Smart Home (IoT), Ed Tech, IT Security, Banking, AI integrations, Health Care, SaaS/Multitenant, Blockchain, Web 3.0 ✅Architectures: Microservice, Monolith, SOA (Service Oriented Architecture), Event Driven, Serverless, Event Sourcing and CQRS ✅Programming languages: Java 6, 7, 8, 11, 15, 17, JavaScript, TypeScript ✅Frontend frameworks/libs: ReactJs, VueJs, Jquery ✅Protocols/connectivity: HTTP, HTTPs, FTP, SSH, REST, SOAP, RabbitMQ, Kafka, ActiveMQ, AWS SNS, AWS SQS, AWS Kinesis, AWS MSK, WebSockets ✅Web Frameworks: Spring Boot (REST API, MVC, Data Jpa, Security, etc), Quarkus, Google Guice, Java EE (EJB, JPA, etc), NestJS, Next JS, Node JS, ✅ORMs: Hibernate, iBatis, Spring Data Jpa, Spring Data Mongo, Spring Data Neo4j,JDBC template ✅Databases: MySQL 5.7, 8.0, MSSQL, Postgresql 14, Oracle, Sybase, Mongodb, Neo4j, Redis ✅ Blockchain: Solana, Etherium, Pokadot network integrations ✅Clouds: AWS: EC2, ECS, S3, Lambda, Kinesis, MSK, EventBridge, SQS, SNS, CloudWatch, CloudFormation, RDS, Aurora, Cognito, Azure, GCP, Heroku ✅CI/CD: Jenkins, TeamCity, Github Actions, AWS Codebuild, SonarQube ✅SSO: LDAP, OpenID Connect (OIDC), SAML, OAuth2, Keycloak, auth0, AWS Cognito, Active Directory, social logins (Facebook, Google), Spring Security ✅Devops: Docker, Docker Compose, Kubernetes (k8s), Linux, AWS Automation: Selenium WebDriver, IDE, Grid, RC ✅Other: Drawio customization, Chat GPT API Integration, Bard API Integration, ISO 27001, ISO 8583, Kipu EMR, FHIR EMR Integration, HL7 FHIR Integration, AWS EMR, EHR Integration, OpenEMR, HIMS, PHI Query API

With 9 years of experience in Backend Engineering and Full Stack Java Development, encompassing projects in cloud systems, web applications and mobile applications . Skills: -Java. -Spring Framework, Spring Boot, Spring Security, Spring Cloud, Microservice, Spring batch, JSF, Hibernate , JPA, Restful API, Web Service, Swagger, Graphql -JUnit, Mockito, TDD Principles, -MYSQL, Postgres, H2, Redis, Mongo, ELK, Keycloack -NodeJS, RXJS, Angular, React, Redux,. -Kafka, RabbitMQ -Data Visualization(D3.js,Hightchart.js) -Maven, Gradle - Jenkins CI/CD, Serverless - Amazon Web Services.. - Docker, Kubernetes.