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  • $50 hourly

    • 4.9/5
    • (23 jobs)
    Full stack developer with lots of experience in Grails, Java, J2EE, Hibernate, Spring, Struts, SpringBoot. Professional and academic background on architecting and building Multi-Tenant Software as a Service. Over the last 11 years, I have worked on variety of projects including web sites/Web applications, Enterprise applications, SAAS and Cloud, Microservices, Mobile Applications My skill sets include: * Languages: Java, Groovy, SQL, C, Ruby, CSS, HTML, JavaScript, PHP * Frameworks Grails, SpringBoot, Bootstrap, Ruby on Rails, Hibernate, Hadoop, Spring, YII, Laravel * Libraries/APIs Java Collections, jQuery UI, jQuery, JAX-RS, Google Gson, JavaMail, Amazon API, Asterisk-Java, Selenium, HTMLUnit, Jsoup * Databases: - Relational: Mysql, PostgreSQL, Oracle, DB2; - NoSQL: Redis, Memcached, SimpleDB; In my case, I enjoy working with small businesses and individual decision makers to provide architectural and custom business solutions that help my clients resolve mission-critical problems, grow their business, and improve their revenue stream and profitability.
    Featured Skill Grails
    Twitter/X Bootstrap
    Asterisk
    J2EE
    JDBC
    jQuery
    Hibernate
    Apache Groovy
    Spring Framework
    Java
  • $90 hourly

    • 5.0/5
    • (99 jobs)
    A coder with 12 years of experience in web development. I've worked on Java (6 to the latest), Grails (1.3.7 to latest), CakePHP 2/3/4, and PHP5, PHP7, and PHP8 having very good knowledge of HTML, Javascript, and its libraries (jQuery, Reactjs, ReactNative, Nodejs, etc), and CSS/SCSS. Worked in the team as well as individually. Very good at handling subversion and coordination with different version controls like SVN, and GIT. Qualities: 1. Excellent logical and problem-solving skills 2. Very good learner 3. Excellent communication skills 4. Helping nature 5. Scheduled and smart worker Languages, tools, and platforms: 1. Java (6 to latest) 2. Groovy on Grails (1.3.7 to latest) 3. PHP, CakePHP 2/3/4 4. JQuery, JQuery mobile, Bootstrap, Foundation CSS, D3.js, AngularJs, KnockoutJs, ReactJs, ReactNative 5. Google Apps Integration 6. Amazon Web Service (Ec2, RDS, Transcoder, S3, SQS, SNS, etc.) 7. Heroku 8. MySQL, Postgres Have experience in implementing functionality like: 1. Dynamic form builder 2. Reports generation 3. Business Intelligence applications 4. CRM applications 5. Firearms management applications 6. Calendar applications 7. Wedding management application 8. Dating websites 9. Google Marketplace Application integration 10. PayPal, Mollie, and other payment integration 11. Video Streaming
    Featured Skill Grails
    XML Web Services
    JavaScript
    Google Maps API
    Apache Groovy
    CodeIgniter
    PHP
    Java
    SQL
    Bitbucket
    CakePHP
    MySQL
    RESTful API
  • $50 hourly

    • 4.9/5
    • (9 jobs)
    I am a System's Engineer living in Argentina and I have been working as a Senior Software Engineer for the past 9+ years. These are some projects I have worked on: jBilling: Canadian company that has a Complex Billing System ideally for Telco companies or any company that sell services based on subscriptions. Stack: Java J2EE, Grails, Hibernate, Spring, Hbase, Hadoop, ActiveMQ, RabbitMQ, Apache Velocity, Jasper Report, jQuery, HTML, CSS and PostgreSQL Taaxii: Argentinean Company that has a solution for Travel Logistics for Company Employees. Stack: Java J2EE, Hibernate, GWT, Ibatis, Android, iOS, MySQL, AWS EC2, AWS S3, AWS RDS and Other AWS Services. Evolticom: Sweedish Company that had a CRM Web Solution. Stack: Grails, Bootstrap and PostgreSQL. DXC: Former HPE area where I worked with them to implement jBilling for the City of Dubai. FusionSleep: US Company that had a solution to control Truck drivers sleep behaviors. Stack: Grails, HTML, CSS and PostgreSQL. Autoentrada: Argentinean Company with a web solution for selling theater tickets online. Stack: Java J2EE, Struts, Ibatis, Jasper Report, HTML, CSS, PostgreSQL. Workia: Argentienan Company specialized in Human Resources Management. Stack: Java J2EE, Spring Boot, Angular JS, Microservices, HTML, CSS. SouthWest Airlines: Main US Low Cost Airline Company. I was involved in migrating existing applications to Java Web based solutions. Stack: Java J2EE, Spring, Spring MVC, Hibernate, HTML, CSS, Grails. Main roles and responsabilities I was involved in these projects: Analysis, Technical Design, Development, Testing, Team Leader, Technical Leader, DevOps.
    Featured Skill Grails
    iOS Development
    SQL Programming
    J2EE
    Android
    Java
    Hibernate
    jQuery
  • $30 hourly

    • 5.0/5
    • (9 jobs)
    Passionate programmer, ever hungry to learn and earn. I have a CAN DO attitude and i am a dedicated learner. EXPERIENCE : 9 Years Backend Skills : * Java * Grails * Node * Groovy * Spring * Hibernate * AWS Frontend Skills : * Javascript * React * Redux * AngularJs * HighCharts * Html * Sass, Less Databases : * Mysql * Mongo * Elastic Search * Snowflake
    Featured Skill Grails
    Agile Software Development
    Elasticsearch
    RESTful API
    Software Architecture & Design
    Web Development
    React
    AngularJS
    JavaScript
    Java
    HTML5
    MongoDB
    Spring Framework
    AJAX
  • $25 hourly

    • 4.9/5
    • (55 jobs)
    Greetings! I am a seasoned Full-Stack Java Developer with over a decade of experience in crafting robust and scalable solutions using cutting-edge technologies. I specialize in Java frameworks such as Spring Boot and Grails, and I am well-versed in modern frontend technologies like Next.js, Tailwind CSS, and Bootstrap Skills: Programming Languages: Java, Groovy, PHP, Python Frameworks: Spring Boot, Grails, NextJS, Laravel, Django, Flask Database: MySQL, PostgreSQL, MongoDB, Oracle Web Technologies: HTML5, CSS3, JavaScript Version Control: Git, SVN, Mercurial Build Tools: Maven, Gradle Testing Frameworks: JUnit, TestNG, Spock Deployment: Docker, Jenkins Key Highlights: Extensive Experience: With a career spanning more than 10 years, I have successfully delivered a myriad of projects, showcasing my ability to adapt to evolving technologies. Spring Boot Mastery: Proficient in leveraging Spring Boot to develop microservices, RESTful APIs, and enterprise-level applications, ensuring optimum performance and scalability. Grails Proficiency: Adept at utilizing the Grails framework for rapid development, allowing for the creation of dynamic and feature-rich web applications. Frontend Expertise: Experienced in crafting engaging user interfaces using Next.js, Tailwind CSS, and Bootstrap, delivering seamless user experiences. Full-Stack Knowledge: Well-versed in both frontend and backend development, ensuring seamless integration and a holistic approach to project execution. Why Choose Me: Proven Track Record: I take pride in my track record of delivering projects on time and exceeding client expectations. Effective Communication: Clear and prompt communication is at the core of my work ethic, ensuring a smooth and transparent collaboration. Versatility: My expertise spans both frontend and backend development, allowing me to offer comprehensive solutions tailored to your project's needs. Client Satisfaction: My goal is not just to meet client requirements but to surpass them, leaving clients satisfied with the end result. Let's Discuss Your Project: If you are looking for a reliable and experienced Full-Stack Java Developer with expertise in Spring Boot, Grails, and modern frontend technologies, let's connect. I am eager to discuss your project requirements and contribute to its success.
    Featured Skill Grails
    Network Administration
    Java
    Spring Boot
    Python
    PHP
    Web Development
    Amazon Web Services
    MySQL
    API Integration
    Apache Groovy
    SQL
    Bootstrap
    GraphQL
    React
  • $55 hourly

    • 5.0/5
    • (33 jobs)
    🚀 𝐓𝐨𝐩-𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 | 𝟏𝟖+ 𝐘𝐞𝐚𝐫𝐬 𝐨𝐟 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 🥇| 𝟏𝟓𝐊+ 𝐇𝐨𝐮𝐫𝐬 𝐨𝐧 𝐔𝐩𝐰𝐨𝐫𝐤 | 𝟓-𝐒𝐭𝐚𝐫 𝐑𝐞𝐯𝐢𝐞𝐰𝐬 ★ | 💥 Successfully built and delivered variety of projects : 𝐰𝐞𝐛𝐬𝐢𝐭𝐞𝐬 and 𝐒𝐚𝐚𝐒 platforms to 𝐌𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩𝐬 and 𝐜𝐥𝐨𝐮𝐝-𝐛𝐚𝐬𝐞𝐝 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬. ✔ 𝐖𝐡𝐚𝐭 𝐈 𝐃𝐨: → 𝐖𝐞𝐛 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: Full-stack websites & web applications → 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 & 𝐀𝐏𝐈: Rest API, Microservices, SAAS, & Cloud based backend solutions → 𝐇𝐞𝐚𝐝𝐥𝐞𝐬𝐬 𝐂𝐌𝐒 : Websites, Apps, Api or end to end solution on top of Headless cmses → 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: AstroJS, VueJS, React ✔ 𝐅𝐮𝐥𝐥𝐬𝐭𝐚𝐜𝐤 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 𝐰𝐢𝐭𝐡 𝐇𝐚𝐧𝐝𝐬 𝐨𝐧 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 𝐨𝐧 𝐥𝐚𝐭𝐞𝐬𝐭 𝐛𝐚𝐜𝐤𝐞𝐧𝐝 𝐚𝐧𝐝 𝐟𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐭𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 ┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄ → 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 : Java / Sprint boot / Grails / Spring security / Hibernate / NodeJS + more → 𝐀𝐏𝐈 : Rest API / Microservices / JamStack / Headless CMS ( Directus, Payload and others ) → 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 :, AstroJs, VueJS, React, Ionic, Html / CSS / Javascript / Tailwind CSS → 𝐃𝐞𝐯𝐎𝐩𝐬:, Linux, Docker, Digital ocean, Linode → 𝐌𝐨𝐛𝐢𝐥𝐞: Android & Cross platform mobile app development with Ionic → 𝐂𝐃𝐍:, Netlify, Vercel, Bunny CDN etc ✔ 𝐖𝐡𝐲 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞: ✓ Proven track record, 𝟏𝟖+ 𝐘𝐞𝐚𝐫𝐬 𝐨𝐟 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞, 100% job success and 5 star reviews ✓ I write 𝐜𝐥𝐞𝐚𝐧, 𝐰𝐞𝐥𝐥-𝐭𝐞𝐬𝐭𝐞𝐝 code that’s scalable and easy to maintain ✓ Experience contributing to 𝐦𝐚𝐣𝐨𝐫 𝐨𝐩𝐞𝐧-𝐬𝐨𝐮𝐫𝐜𝐞 𝐟𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬 like Grails ✓ Ability to work 𝐢𝐧𝐝𝐞𝐩𝐞𝐧𝐝𝐞𝐧𝐭𝐥𝐲 or as part of your 𝐭𝐞𝐚𝐦 ✓ Expertise on 𝐦𝐚𝐢𝐧𝐭𝐚𝐢𝐧𝐢𝐧𝐠 and 𝐞𝐧𝐡𝐚𝐧𝐜𝐢𝐧𝐠 existing projects ✓ Developer, but with deep understanding of 𝐒𝐄𝐎, User experience, 𝐂𝐨𝐫𝐞 𝐰𝐞𝐛 𝐯𝐢𝐭𝐚𝐥𝐬, Google 𝐬𝐞𝐚𝐫𝐜𝐡 𝐜𝐨𝐧𝐬𝐨𝐥𝐞 play console and more. ✔ 𝐂𝐨𝐧𝐭𝐫𝐢𝐛𝐮𝐭𝐨𝐫 𝐭𝐨 𝐩𝐨𝐩𝐮𝐥𝐚𝐫 𝐨𝐩𝐞𝐧𝐬𝐨𝐮𝐫𝐜𝐞 𝐟𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬 → Contributor to grails core framework with bug fixes & enhancementes → Author / maintainer / Contributor to some of popular open source Grails plugins → Grails 3 external config plugin → Recaptcha-spring-security → Nimble plugin → Jcaptcha-spring-security → Elfinder file manager → Shiro Oauth plugin → Html cleaner → Fields plugin ✔ Github repo for examples of my work : 𝗴𝗶𝘁𝗵𝘂𝗯 @𝘀𝗻𝗶𝗺𝗮𝘃𝗮𝘁
    Featured Skill Grails
    Android
    Ionic Framework
    Docker
    Hibernate
    Vuetify
    Node.js
    Spring Data
    Spring Security
    Spring Boot
    Spring Framework
    Java
    Tailwind CSS
    Vue.js
    REST API
  • $45 hourly

    • 4.9/5
    • (146 jobs)
    I have 14+ years of experience in web development, mobile development application. I have done many works with PHP and Java for web application especially with different MVC framework like CakePHP, Grails, Laravel, Ruby on Rails, CodeIgniter, Zend, Symfony, Yii and different CMS like concrete5, moodle, modX. I am highly experienced in any MVC Framework even with different programming languages. I am also internationally certified on Java. I have done android game application and android home widget application in Java. I have experience with many programming language like Python especially Pylons and Django web application, Ruby especially Ruby on Rails web application, Java with Grails including script languages such as ajax, json, javascript, xml, rss, xslt and flex for active script language and with content management systems. I have been using sql server, mysql, oracle, mongodb and sqlite3 for database. I have participated on National and International project. I have masters on Software Engineering.
    Featured Skill Grails
    Concrete5 CMS
    RESTful API
    MongoDB
    PostgreSQL
    Spring Boot
    Java
    React
    Ruby on Rails
    PHP
    Python
    Laravel
    MySQL
    CakePHP
    CodeIgniter
  • $55 hourly

    • 5.0/5
    • (11 jobs)
    • Java Developer with 11 years of IT experience (Java SE/EE, JMX/RabbitMQ, Spring Cloud Netfix/Hibernate/Elastic Search Frameworks) • Groovy Developer with 2 years of IT experience (Grails/Micronaut/Hibernate/Spring/Spring Boot/Quarkus, JavaScript/ HTML/CSS) • C# Developer with 2 year of IT experience (ASP.NET/MVC Framework) • Kotlin Basics (Learning in progress) • Successful practical experience in business application support (Enterprise-level of high availability systems). • AWS (EBS, EC2, S3, SES, SQS, Route 53), Azure DevOps, GCP (Cloud Run, SQL, GCS, PUBSUB) • Key business domains: Software Development; E-government, EdTech. • Worked successfully in the multicultural environment and remotely. • Hands on experience in design, development, testing. • Technical Sciences, Ph.D.
    Featured Skill Grails
    Core Java
    Stripe
    Elasticsearch
    RabbitMQ
    Agile Software Development
    Apache Groovy
    Spring Framework
    Git
    Spring Boot
    C#
    Apache Maven
    Docker
    JavaScript
    MySQL
  • $60 hourly

    • 4.8/5
    • (17 jobs)
    Greetings. I'm a Certified Java Developer with more than 7 years of experience. I have expertise in building enterprise-level applications and always meet tight deadlines. My focus has been creating strong backend systems using the Spring Framework, and I've had the privilege of working with multiple SaaS companies. Throughout my career, I've been dedicated to driving innovation and achieving outstanding outcomes in every project. 🌟Certifications🌟 🏅ORACLE Certified Java Programmer - 2022 🏅Spring Boot 3, Spring 6 & Hibernate - 2020 🏅Amazon Machine Learning - 2023 🏅SAS Programming - 2023 🏅Amazon Web Services Associate Developer – 2023 🌟 My Specialization 🌟 ✅ Java (8, 11 & 17): Extensive expertise utilizing recent Java features, including Lambdas, Stream APIs, DateTime APIs, and Functional Interfaces. ✅ Java EE Family: EJB, JPA, Hibernate,Servlets, RESTful Services (JAX-RS), SOAP Services (JAX- WS), Apache CXF & Bean Validation. ✅ Java EE Web: JSF, JSP, Thymeleaf, Bootsfaces & Primesfaces. ✅ Spring Frameworks: SpringBoot, Spring Core, Spring Batch, Spring Data, Spring Cloud ✅ SQL Databases: SQL Server, MySQL, PostgreSQL, MariaDB & Oracle ✅ NoSQL Databases: MongoDB & Redis ✅ AWS: IAM, EC2, S3, RDS, Lambda, Elastic Beanstalk etc. ✅ Message Broker: Kafka and Zookeeper ✅ Message Queues: ActiveMQ & RabbitMQ. ✅ Testing: JUnit, Spring Test, Mockito, Integration Test, Unit Test. ✅ Versioning: GIT, GITHub, BitBucket & VisualSVN ✅ DevOps: Docker, Kubernetes, Jenkins ✅Hands-on design, development, implementation, and optimization 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 Excited to lend my expertise in Development and architectural transformation to visionary projects, I'm eager to join forces with your esteemed team and make a meaningful impact.
    Featured Skill Grails
    AI Model Training
    Artificial Intelligence
    Machine Learning
    React
    API
    Angular
    Hibernate
    Software Architecture & Design
    Web Development
    Database Architecture
    Spring Security
    Spring Boot
    Spring Framework
    JavaScript
    Java
  • $30 hourly

    • 4.7/5
    • (9 jobs)
    I am full stack developer and expert on Java, Angular JS, Node JS. I have got 7+ years of experience on web development. Major Technical Skills: Java : Spring, SpringBoot, SpringSecurity, Dropwizard, Hibernate, Grails, Jersey, Play Javascript : React.js, Angular.js, Node.js, jQuery, Express.js, Backbone.js, Vue.js WEB : HTML5, CSS3, SASS, LESS, Responsive Design Mobile : IONIC, PhoneGap, Cordova, XCode ORM tools : Hibernate, JPA, GORM, mybetis Test Cases : Junit, Karma, Jasmin,Selenium, Protector Continue Integration : Jenkins Build tools : NPM, Bower, Maven, Gradle, Ant WebService : REST, SOAP Agile : JIRA, Basecamp Database : MySQl, PostgreSQL, MSSQL NoSQL Database : MongoDB, Marklogic(XML) OS : Linux, Ubuntu, Widows, Mac Cloud services: AWS, Rackspace Web servers: Apache, Nginx, Tomcat, Jboss, Glassfish We will make our project successful by coming together.
    Featured Skill Grails
    J2EE
    Java
    AngularJS
    Spring Framework
    Play Framework
    Spring Security
    Hibernate
  • $25 hourly

    • 5.0/5
    • (17 jobs)
    Intermediate Level Developer. Skilled in Java, Grails, PHP, WordPress, SQL, JavaScript, Vue.js, React, HTML, NodeJS, MongoDB, Stripe & Web Services. Strong engineering professional & Problem Solver.
    Featured Skill Grails
    Stripe
    TypeScript
    React
    AJAX
    jQuery
    JSON
    HTML5
    Vue.js
    MongoDB
    SQL
    Java
    JavaScript
    Node.js
    HTML
  • $30 hourly

    • 5.0/5
    • (20 jobs)
    ✔ Typescript | Javascript | React | Vue | Angular | Nodejs | Nest | Express | Material UI | Bootstrap | Unit Testing | Integration Testing | ES6 | AWS | Docker | Jenkins | Keycloak | ES6 | Nginx | Apache | Java | Spring boot | Grails | Selenium | Python | Django Communication with me is simple, you are free to call me anytime you want. I am a specialist in: Basics: • HTML5 / CSS / BootStrap • TypeScript / ES6 / ES2015 • Javascript / Jquery / Ajax Programming Language: • Javascript / Typescript / Python / Java / Groovy Frameworks: • React / Angular / Vue / Redux / Material UI • Node.js / Express.js / Nest.js • Django • Spring / Grails Template Engine: • Handlebars / EJS / Groovy Template Databases: • MySql / MongoDB Testing: • Jest / React testing Library / Enzyme / Mocha • Junit / Selenium / Cucumber WebServer: • Nginx / Apache / Tomcat / Glassfish Integration: • API / WebSockets / Ajax / JSON • Heroku / AWS / Firebase DevOps: • Docker / Jenkins / TravisCI / CircleCI. Build Automation Tool: • Gradle/ Maven / NPM WorkFlow: • Agile / Scrum • Jira / Trello Platform: • Windows / Linux / Mac Github: github.com/devbinod github.com/pantbinod
    Featured Skill Grails
    NestJS
    CI/CD
    Apache Groovy
    Google Cloud Platform
    Bootstrap
    Amazon ECS
    MongoDB
    Docker
    Jenkins
    Angular
    React
    Node.js
    Python
    Spring Boot
  • $40 hourly

    • 5.0/5
    • (39 jobs)
    I am a java developer with more than 20 years of experience in the Java industry. I also do front end development using React framework. I am a lead/senior developer, self-discipline, hardworking, quick learning, good team spirit and honesty. I can design, code, improve web and backend applications and your IT infrastructure. My experience include web programming both front-end and back-end, development of interactive web application and mobile applications, use of modern technologies, Here is a draft list of technologies I am familiar with: Backend Technologies: ✓ Spring Boot Microservices, Spring Boot Cloud, Spring Security ✓ AWS Integration (Elastic Beanstalk, EC2, RDS, Elastic Search etc) ✓ Elastic Search / Integration / Querying ✓ SSO SAML 2.0 Authentication ✓ Netflix Eureka, Netflix Ribbon, Netflix Feign, Docker ✓ Service Mesh like Istio - Envoy Proxy, Netflix OSS Hystrix ✓ Consul, Config Server, Cloud Bus (Auto-Refresh) ✓ Zuul, Zipkin, Sleuth, Turbine ✓ RabbitMQ (Spring-AMQP), Kafka (Spring-Kafka and Kafka Stream), Spring Batch, Spring Cloud Data Flow (Remote partitioning, integration with Kubernates, Cloud Tasks etc) ✓ Grafana + Prometheus + Prometheus-jmx-exporter ✓ Docker Swarm, Kubernetes, Spring Cloud Security ✓ Java, J2EE, Spring Framework (MVC, Security, Remoting etc), Hibernate, Jasper Reports, ✓ SOA, RESTful Services, SOAP Services, Apache CXF ✓ Deep knowledge in wide range of web-scrapping and automation technologies. ✓ SQL and NoSQL databases. Wide experience with Postgres, MySQL, MSSQL, Oracle, MongoDB, Cassandra Front End Technlogies: ✓ React Web Application, GraphQL, RX-JS, Redux, ✓ Bootstrap, jQuery, AngularJS, DataTables, Extjs, Struts 2.x, jQuery Mobile etc. ✓ HTML 5, CSS 3.0, JavaScript, Responsive Web Design Servers and Tools: ✓ Jenkins, CI-CD, Gradle, Open Shift - OS ✓ Jboss 7, Tomcat, Apache ✓ SVN, GIT, JIRA, BitBucket, Hudson, Maven, Apache Ivy Competitive advantages: 1. Extended work experience 2. Analytical mentality 3. Easygoing, communicative, could easily work in team 4. Have leadership skills, can organize people 5. Flexibility, ability to cope with any difficulties during short time-period
    Featured Skill Grails
    Hibernate
    Java
    AWS Application
    Spring Cloud
    Spring Boot
    AWS Lambda
    Spring Framework
    Microservice
    Web Services Development
    Ext JS
    AngularJS
    JavaScript
    Web Development
    Kubernetes
    CSS 3
  • $25 hourly

    • 5.0/5
    • (22 jobs)
    Java developer with 5+ years of experience. My experience include programming for back-end, front-end, development of interactive web, mobile and desktop applications. My skill set includes: Backend Technologies: ✓ Java: Java 15, JavaEE, JavaFX, Swing ✓ Spring: Spring Webflux, Spring MVC, Spring Security, Hibernate ✓ Cloud: Docker, Kubernetes, Docker, Spring Cloud ✓ API integrations: REST, SOAP, WebServices, WebSockets ✓ Databases: Postgres, MySQL, MSSQL, Oracle, MongoDB, Redis ✓ Authentication: OAuth, JWT Servers and Tools: ✓ Tomcat, Apache, Netty, Jetty. ✓ GIT, BitBucket, Maven, Gradle ✓ Trello, Jira ✓ Swagger, Postman Front End Technlogies: ✓ JavaScript, TypeScript ✓ Angular, jQuery, Bootstrap ✓ HTML 5, CSS, SCSS ✓ JSP, Thymeleaf Android: ✓ RxJava, Dagger ✓ ButterKnife, EventBus ✓ Room, SQLite ✓ Background Services, Retrofit
    Featured Skill Grails
    API
    Mobile App Development
    Angular
    Web Application
    HTTP
    SQL
    Spring Framework
    TypeScript
    Rust
    Golang
    Java
    Docker
    Android
    Spring Boot
  • $90 hourly

    • 5.0/5
    • (3 jobs)
    I love technology and learning new languages, frameworks and platforms. I've been an I.T. professional for 25 years and was a computer enthusiast/programmer before I made it a career. I have worked as a consultant on many large & complex projects at Fortune 500 companies. Although my experience has been large corporate systems (ERP, e.g. Oracle PeopleSoft), I have found that I want to be more involved in startup projects using modern tools and techniques. To keep current with technology trends, I often work on side projects, some of which never see the light of day and others that have a significant user base on the public web.
    Featured Skill Grails
    Linux System Administration
    PeopleCode
    Amazon Web Services
    MySQL
    Vue.js
    Java
    SQL
    Apache Groovy
    jQuery
  • $35 hourly

    • 4.9/5
    • (48 jobs)
    I'm Fusion Zhu, with over 10 years of experience in Java development, including 5 years focusing on Big Data Processing and Visualisation using Java, Scala, JavaScript, HTML5, Apache Spark, Apache Hadoop, Apache Hive, Apache Flume, Apache Hbase, Storm, Kafka, DataX, and ECharts. Throughout my career: I've assisted employers in data ingestion from various sources such as RDBMS, NoSQL databases, and files by developing utilities on OSS platforms like DataXServer (open-source on GitHub) and Realtime Page Click Statistical System (refer to Portfolio section) as a Big Data Developer. I've played a key role in building Big Data Platforms using technologies like Hadoop, Spark, Hive, HBase, Flink, Kafka, and ElasticSearch as a Big Data Architect. I've designed and developed Web Applications including e-commerce and Report Systems using Java, Scala, HTML5, JavaScript, CSS, Spring, Akka, Mybatis, D3JS, ExtJS, JQuery, ReactJs, ECharts, and Bootstrap CSS as a Java & Front-end Developer. I've managed full-stack teams (Java, Front-end, QA, and Operation) effectively as a Team Leader. Furthermore, I possess extensive skills and experience in Microservice design & architecture, Container Cloud (Docker, Kubernetes), Rust, and Linux. If you're seeking a reputable and reliable professional who consistently delivers results, I'm the one you're looking for. Thank you for visiting my profile, and I look forward to hearing from you!
    Featured Skill Grails
    React
    Java
    JavaScript
    Scala
    Elasticsearch
    Web Development
    Docker
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    D3.js
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    Spring Boot
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    Apache Kafka
    Apache Spark
    Apache Hadoop
  • $16 hourly

    • 4.5/5
    • (3 jobs)
    Software engineer with over 13 years of experience. I specialize in developing web applications, most of them hosted in the cloud, using providers like AWS. I also really like relational database design. I have mostly worked with open source web application frameworks, based on Java, such as Grails and Spring Boot. I have experience migrating large amounts of data between warehouses. I have worked with PBX telephone systems, and I have provided support to internal clients of the organizations I have worked for. I am also a fan of Excel. I am a very committed and responsible person, organized, proactive and honest, who prioritizes the satisfaction of her clients.
    Featured Skill Grails
    SQL
    MySQL
    Asterisk
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    PostgreSQL
    JavaScript
    jQuery
    Apache Groovy
    Java
  • $15 hourly

    • 3.9/5
    • (13 jobs)
    12 years of experience in website development and mobile application development, with core technical expertise in AEM 6.5, AEM 6.3, WordPress, PHP, MYSQL, HTML5, Laravel, Typescript, CSS3,Bootstrap,JAVASCRIPT, JQUERY, jQuery Mobile, ionic, Angular 1 to 10, React JS, React native, Flutter, Node JS, Payment Gateway, Git, Cordova, XCode, Maximo, SOAP, Rest API, next JS , Vue JS, Jiar, Agile , Blockchain, Docker technologies
    Featured Skill Grails
    Vue.js
    Git
    React
    Angular
    Next.js
    React Native
    React Bootstrap
    Laravel
    Ionic Framework
    WordPress Plugin
    MySQL
    PHP
    WordPress
    CSS
    HTML
  • $35 hourly

    • 5.0/5
    • (20 jobs)
    I am a Software Developer with around ten years of experience in Java, developing both the back-end and front-end of multiple software solutions. I have experience with each layer of development, from creating database structures and stored procedures to designing and developing the user interface of the applications. My knowledge and experience includes: - Programming languages: Java, PHP, C#, Python. - Frontend frameworks/ technologies: ZK, Vaadin, JSP, HTML5, Jquery, Javascript, AngularJS, AJAX. - Backend frameworks: Spring, Spring Security, Spring Batch, JSF, Hibernate, Mybatis. - Versioning Control: Git, SVN. - Databases: Oracle, MySQL, SQLite, SQL Server, Oracle Database, PostgreSQL - SOAP and REST web services - Tools: Maven, Ivy, JasperReports I'm always motivated with the idea of new challenges and learning new technologies. I'm willing to make the best effort to do an excellent job, even if it takes extra work researching the way to solve a problem. I have several years working on financial institutions, so I have experience working under pressure, meeting really strict deadlines and communicating with the users to evaluate options and generating solutions for their needs. I'm used to work as a team member as well as independently, following instructions or coming up with the solutions that best suites the needs of the business.
    Featured Skill Grails
    Tableau
    ZK Framework
    API Integration
    API
    Database Architecture
    Spring Boot
    RESTful Architecture
    Database Design
    Web Application
    Vaadin
    MySQL
    Java
    Spring Framework
    iBATIS
    RESTful API
  • $30 hourly

    • 5.0/5
    • (13 jobs)
    Highly accomplished Java/JavaScript/TypeScript Full Stack developer with 16 years of web application designing, development and testing in Java/J2EE experience and Angular, React, Vue.js, Node.js. Over 7 years of extensive experience of working with Oracle (working with stored objects, writing sql query and pl/sql), various Java application servers (JBoss, Weblogic, WebSphere) and Java Framework (Spring, Hibernate) for the largest service and telecom providers in the world (Telecom New Zealand, Deutsche Telekom, VimpelCom and so on) and online advertising companies ( Forbes, Leboncoin, Bauer and so on)
    Featured Skill Grails
    JavaFX
    Apache Hadoop
    Spring Framework
    React
    JavaScript
    Hibernate
    Java
    MongoDB
    Vue.js
    SQL
    Database
    Node.js
    Angular
    Spring Security
    Spring Boot
  • $40 hourly

    • 5.0/5
    • (47 jobs)
    I'm a highly motivated and experienced developer with over 10 years of expertise in Java, Groovy, and Grails. I possess a strong understanding of back-end development principles and a proven track record of delivering robust and scalable applications. Skills & Technologies: Java, Groovy, Javascript, Typescript Grails, Spring Boot, SparkJava RESTful APIs, Google APIs MySQL, PostgreSQL, MongoDB, MariaDB JavaScript, TypeScript, jQuery libraries, Bootstrap, W3CSS Git, GitHub, BitBucket IntelliJ IDEA, Postman JIRA, Asana, Trello AWS, Docker ChatGPT, Gemini, DeepSeek Additional Information: I'm proficient in utilizing various project management tools to ensure efficient collaboration and project delivery. I'm a quick learner and possess excellent problem-solving skills. What I offer: Strong technical expertise in Java, Groovy, and Grails. Ability to design, develop, and deploy back-end applications. Experience with various databases and APIs Familiarity with front-end technologies and cloud platforms Excellent communication and collaboration skills Why Choose Me? Over 10 years of experience in the industry Proven track record of delivering successful projects Dedicated, reliable, and results-oriented
    Featured Skill Grails
    Apache Groovy
    Bitbucket
    Hibernate
    MySQL
    Web Application
    RESTful API
    GitHub
    PostgreSQL
    Java
    Docker
    Git
    MongoDB
  • $20 hourly

    • 5.0/5
    • (2 jobs)
    Working Experience in Telenor BSS. Taking part to transform CBS huawei to Oracle BRM(Billing revenue Management) PLatform. Taking part to transform EVC huawei to ERS PLatform My core responsibilities are: -Develop Rest and SOAP APIs on RED HAT FUSE ESB to communicate with ORACLE BRM Rest services for customer billing. -Develop Rest and SOAP APIs on RED HAT FUSE ESB to communicate with ORACLE BRM Rest services for customer billing. -Develop FrontEnd and Backend and Rest and SOAP APIs for Application EPC(Enterprice Product Catalog). -Architecting Rest and SOAP APIs on RED HAT FUSE ESB to communicate with DownStream ORACLE BRM. Tools and Technology BSS, BRM, CBS, ERS, FUSE ESB, Apache CXF, Active AMQ, JBOSS FUSE, INTELLIJ, PostgressSQL, JIRA, Eclips. I will develop any custom web and wordpress websites according to your requirements. The web will be fully responsive with stunning UI . The product will be exactly like the concept of the web and wordpress you have in your mind. My services in web include: Frontend + Backend development Website Splash Screen Google Spreadsheets Online User Authentication (Email, Gmail, Facebook...) Online Database (Google Firebase,Mysql) SQL-lite Database Wordpress Rest Api Third-party APIs integration Rest API Onesignal Push Notifcations Map/GPS Barcode/Scanner based Payment gateway integration On Demand websites
    Featured Skill Grails
    JBoss Seam
    Linux
    Linux System Administration
    Microsoft Office
    SOAP
    RESTful API
    Web Development
    GitHub
    Java
    Android App Development
  • $20 hourly

    • 5.0/5
    • (15 jobs)
    Over the last 10 years, I have developed a wide range of web applications, including projects for startups and small businesses. My primary expertise area is Grails and other Java-Based Technologies like JSF and Struts. I've quite experience in frontend and backend programming Apart from being an engineer and an enthusiast software developer, i like project managing and care about planning, documenting, testing, using automation when possible. Some of my expertise areas are > Groovy / Grails > JSF > Struts > JPA (Hibernate and EclipseLink) > AWS (EC2, S3, SES) > Postgresql > Mysql > Twitter Bootstrap > Javascript, Jquery > Packer, Vagrant > Linux > Primefaces > MongoDB > Git and Git Flow > Backbone.js > Atlassian (Jira / Confluence / Bamboo) > Web Crawlers (Groovy / Geb) > PHP (Yii, Symfony) I also have good experience in SQL querying and Image editing software (i.e Photoshop, Gimp). Heroku and OpenShift. I have implemented online payment platforms, and know very well some third-party APIs, like > Stripe for payment platform > Mandrill, MailChimp, Amazon SES for mailing > AWS (EC2, S3) for virtualization and storing in the cloud I am a highly committed and responsible developer, focused on continuously improving my skills, and develop a long-term relationship with my clients
    Featured Skill Grails
    jQuery
    Java
    Spring Framework
    HTML
    JavaScript
    PrimeFaces
    PHP
    Linux System Administration
  • $25 hourly

    • 4.8/5
    • (16 jobs)
    Hello! I'm a full stack developer with 11+ years of experience in building scalable and robust applications. I have successfully worked on a variety of projects, both large and small, and am passionate about delivering high-quality solutions. Skills & Expertise: - Comprehensive Frontend and Backend Experience: Proficient in both frontend and backend development, ensuring seamless integration and functionality. - Ruby on Rails Specialist: Extensive experience with Ruby on Rails (3.x, 4.x, 5.x, 6.x, 7.x), crafting efficient and scalable backend solutions. - Modern Frontend Frameworks: Skilled in React.js, Vue.js and Bootstrap, creating dynamic and responsive user interfaces. - Database Management: Proficient with PostgreSQL, ensuring data integrity and performance. - Deployment & Version Control: Experienced with Heroku and Git for smooth deployment and version control. - Leadership Experience: Proven track record as a lead developer, guiding teams and projects to successful completion. - Task Management: Dedicated to keeping tasks on track and meeting deadlines. - Quality Assurance: Strong background in writing tests to ensure robust and reliable applications. - Startup Experience: Adept at working with startup teams, contributing to fast-paced and innovative environments. - Simplicity & Usability: Focused on creating simple, user-friendly frontend experiences. - Continuous Integration & Deployment: Experienced with CI/CD practices, streamlining the development process. If you're looking for a dedicated, experienced, and versatile full stack developer to bring your project to life, let's connect and discuss how I can help achieve your goals.
    Featured Skill Grails
    .NET Core
    Heroku
    PostgreSQL Programming
    MySQL Programming
    CSS
    HTML
    JavaScript
    GitHub
    Amazon EC2
    Amazon Web Services
    Ruby
    React
    Ruby on Rails
    jQuery
    Docker
  • $25 hourly

    • 5.0/5
    • (14 jobs)
    **Unlock Your Business’s Online Potential!** Are you looking to elevate your online presence with a stunning website? Whether you need a simple site or a dynamic, interactive platform, I’m here to help! **My Expertise:** Backend Development: Proficient in Java, Spring Boot, Grails, Groovy, Microservices, and Hibernate Extract tables from PDFs and seamlessly convert them to CSV files Perform JDBC analysis for optimal database performance, especially for bulk data insertions. MERN Stack Frontend Development: Mastering Angular and React for interactive user experiences Skilled in HTML5, CSS, Bootstrap, ANT Design, PrimeReact, and PrimeAngular Additional Skills: Version control with Git, GitHub, and GitLab Smooth payment processing with Stripe Integration With these powerful tools and technologies, I can help you create a platform that not only engages your audience but also drives growth. Let’s Spark Innovation Together! Ignite your vision and watch it grow. Connect with me today!
    Featured Skill Grails
    MERN Stack
    Angular 10
    React
    J2EE
    Core Java
    GitHub
    MongoDB
    MySQL
    PostgreSQL
    Hibernate
    Web Service
    Apache Tomcat
    Microservice
    RESTful API
    Spring Boot
  • $25 hourly

    • 5.0/5
    • (51 jobs)
    🎁 100% satisfaction guarantee - Delivered on time, on budget, or money back! Transform your business with enterprise-grade digital solutions that scale across web and mobile platforms. With 100+ successful implementations, I've mastered building comprehensive digital ecosystems that drive growth. From sophisticated SaaS platforms to cross-platform mobile apps, I deliver solutions that exceed expectations. You'll get maximum value from our partnership if: ● You need an enterprise solution with both web and mobile presence ● Your existing systems need modernization or mobile expansion ● You're dealing with complex integrations across platforms ● You want to migrate legacy systems to modern architecture ● You need pixel-perfect mobile apps that match your brand exactly ● You require real-time features and complex integrations ● Your current solution can't handle business growth Working with me means you'll receive: 👉 Enterprise-grade solutions across web and mobile platforms 👉 Native-like mobile performance with cross-platform efficiency 👉 Optimized system architecture and efficient integrations 👉 Clean, documented code following industry best practices 👉 Seamless deployments with zero downtime 👉 Daily updates and responsive communication 👉 Strategic technical consultation beyond coding Technical Arsenal: ✅ Mobile Development: React Native, Flutter Native iOS & Android capabilities Real-time features (WebRTC, Socket.io) Payment integrations (Stripe, PayPal) Health & Fitness (HealthKit, Google Fit) ✅ Full Stack Development: Backend: Ruby on Rails, Node.js, Laravel, Python Frontend: React, Next.js, Vue.js Data: PostgreSQL, MongoDB, GraphQL Cloud: AWS, Docker, Kubernetes AI & Automation: Custom AI Solutions Modern Software Architecture: I specialize in designing and implementing modern architectural patterns tailored to your specific needs: 🏗️ Microservices Architecture 🏗️ Mono-repository Architecture 🏗️ Monolithic Architecture Specialized Solutions: ⚡️ Enterprise Mobile Applications ⚡️ Custom SaaS Platforms & MVPs ⚡️ Healthcare Information Systems ⚡️ Enterprise Resource Planning (ERP) ⚡️ Social Media & Community Platforms ⚡️ E-commerce & Marketplace Systems ⚡️ Fintech & Payment Solutions ⚡️ AI-Powered Business Tools ⚡️ Real-time Communication Platforms Recent Achievements: ● Launched a SaaS platform serving 10K+ daily active users ● Developed a mobile-first CRM handling 100K+ daily transactions ● Implemented a cross-platform healthcare solution ● Built an education platform with 70% improved performance ● Delivered a fitness tracking app with wearable integrations We might not be a good fit if: ❌ You need immediate delivery without proper planning ❌ You're looking for the lowest price rather than quality ❌ You can't maintain clear communication My development philosophy centers on creating comprehensive solutions that seamlessly integrate web and mobile experiences while being architected for scale. Every project begins with enterprise best practices, security considerations, and performance optimization. Ready to transform your business with scalable digital solutions? Let's discuss your requirements and create something exceptional.
    Featured Skill Grails
    Android App Development
    System Deployment
    React Native
    iOS Development
    Hybrid App Development
    Flutter
    Amazon EC2
    Redux
    JavaScript
    Web Development
    Git
    Ruby
    Ruby on Rails
    React
    Node.js
  • $95 hourly

    • 4.7/5
    • (203 jobs)
    eCommerce Technical Architect & Developer | 10+ Years Experience I specialize in eCommerce architecture and development, leveraging expertise with platforms like Shopify Plus, BigCommerce Enterprise, Adobe Commerce and Magento Open Source. My career spans over a decade, with a proven track record of delivering scalable, high-performance solutions for B2B and B2C clients. Core Expertise: - Platform Migrations: Seamless transitions from Magento to Shopify and BigCommerce. - Headless Commerce: Advanced implementations using web service APIs, VueStoreFront, and Next.js. - Frontend Development: Full theme development, responsive design, and headless themes. Skilled with Figma and Adobe XD for design translation. - Backend Development: Custom Magento extensions, Shopify & BigCommerce apps, MySQL databases, and third-party integrations (ERP, social media, inventory, and shipping systems). Additional Experience: - eCommerce Platforms: Shopware, WooCommerce, Craft Commerce - CMS Expertise: Craft CMS, WordPress, Sanity, Strapi, and Contentful - Frameworks: Laravel, Yii, Zend, Express, Vue, React, Ember, and Next.js. - Magento Hyva If you're looking for a results-driven professional with a deep understanding of eCommerce ecosystems and a passion for solving complex technical challenges, let's connect!
    Featured Skill Grails
    SAP
    Oracle NetSuite
    Shopify Apps
    Oracle JD Edwards EnterpriseOne
    Salesforce CRM
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    Next.js
    Web Development
    Craft CMS
    WordPress
    Magento
    Shopify Templates
    WooCommerce
    BigCommerce
    Shopify
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