Hire the best Groovy developers & Programmers

Check out Groovy developers & Programmers with the skills you need for your next job.
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Rating is 4.7 out of 5.
4.7/5
based on 131 client reviews
  • $50 hourly
    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.
    vsuc_fltilesrefresh_TrophyIcon Groovy
    Twitter/X Bootstrap
    Asterisk
    J2EE
    JDBC
    Grails
    jQuery
    Hibernate
    Apache Groovy
    Spring Framework
    Java
  • $90 hourly
    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
    vsuc_fltilesrefresh_TrophyIcon Groovy
    XML Web Services
    JavaScript
    Google Maps API
    Apache Groovy
    Grails
    CodeIgniter
    PHP
    Java
    SQL
    Bitbucket
    CakePHP
    MySQL
    RESTful API
  • $49 hourly
    I am a highly skilled Senior Java Software Engineer with a strong track record in various industries including E-commerce, Telecommunication, Travel, and Education. With 8 years of experience, I have a deep understanding of both front-end and back-end development. Technical Skills: - Java: Proficient in Java 7, 8, and 11, utilizing it extensively for developing robust applications. - Spring Framework: Experienced in leveraging the power of Spring Framework, Microservices, and Spring Cloud for building scalable and efficient solutions. - Messaging Technologies: Skilled in implementing asynchronous messaging using Azure Service Bus, Apache Kafka, RabbitMQ, and Netflix Conductor, enabling seamless communication between components. - Cloud Technologies: Experienced in working with AWS EC2, Amazon S3, Amazon Rout53, Amazon Redshift, and utilizing ThoughtSpot analytics. Also proficient in ELK Stack, Docker, and Docker Swarm for containerization and deployment. - Front-end Development: Hands-on experience with AngularJS and Angular 8, ensuring engaging and responsive user interfaces. - Database Technologies: Well-versed in working with various databases including Oracle, MySQL, Postgres, and MongoDB. Proficient in designing and optimizing stored procedures for efficient data retrieval and manipulation. - Web Technologies: Proficient in JWT, JavaScript, CSS, jQuery, HTML5, and Bootstrap, enabling the development of modern and visually appealing web applications. - Development Tools: Experienced in using tools such as Maven, Apache Tomcat, Gradle, and version control systems like Git and TFS, ensuring streamlined and collaborative development processes. - CI/CD and Agile Methodologies: Skilled in implementing CI/CD pipelines using Jenkins, Jira, Confluence, Bitbucket, and Agile Scrum, facilitating continuous integration, delivery, and efficient project management. - Android Development: Proficient in Android application development, creating native mobile experiences for Android users. - Familiar Technologies: Familiar with Node.js, MongoDB, and Kubernetes, keeping up-to-date with emerging technologies and trends in the industry. With my extensive technical skills and experience, I am well-equipped to contribute to complex software projects, drive innovation, and deliver high-quality solutions.
    vsuc_fltilesrefresh_TrophyIcon Groovy
    CI/CD
    Jenkins
    MongoDB
    Hibernate
    Kubernetes
    Mockito
    Unit Testing
    RabbitMQ
    JavaScript
    Dropwizard
    Docker
    Node.js
    Apache Kafka
    Angular
    Spring Boot
    Microservice
    Spring Framework
    AngularJS
    Java
  • $40 hourly
    If you are looking for a professional & experienced Java, Groovy, or Grails developer then your search is over. With more than 10 years of experience I have a full grip on the below-mentioned tools and technologies: Groovy, Grails, Java, Spring Boot, SparkJava, REST APIs, Google APIs. Docker, AWS MySql, PostgreSQL, MongoDb, MariaDB, JavaScript, Typescript and JQuery libraries, Bootstrap, W3CSS Git, GitHub, BitBucket, IntelliJ Idea, Postman, and a many more. I prefer to use project management tools like JIRA, Redmine, Asana, or Trello.
    vsuc_fltilesrefresh_TrophyIcon Groovy
    Apache Groovy
    Grails
    Bitbucket
    Hibernate
    MySQL
    Web Application
    RESTful API
    GitHub
    PostgreSQL
    Java
    Docker
    Git
    MongoDB
  • $75 hourly
    I am ✅ Atlassian Certified Master ✅ Certified Jira Cloud Administrator (ACP-120) ✅ Certified Jira Service Desk Administrator(ACP-400) ✅ Certified JIRA Administrator (ACP-100, ACP-JA) ✅ Certified JIRA Project Administrator (ACP-600, ACP-JPA) ✅ Atlassian Certified in Managing Jira Cloud Projects (ACP-MJCP, ACP620) ✅ ISTQB Certified Test Manager ✅ Microsoft Certified Professional ✅ ITIL V3 Certified ✅ Certified Professional Scrum Master ✅ Certified Azure Solution Architect ✅ Certified AWS practitioner ✅ JAVA SE8 Programmer HOW CAN I HELP YOU ⭐ Identifying your business needs, selecting the right Atlassian products, choosing the the right environment and translate/map business requirements into an efficient high- quality solutions. ⭐ Atlassian products Installation, configurations, upgrades & maintenance of all Atlassian products(Jira, Service Desk, Confluence, Bamboo, Bitbucket) on Linux/Windows/AWS/Docker/Azure-based environments. ⭐ Atlassian Cloud Based products administration, customizations, trainings and support. ⭐ Set up Service Desk/Management and Knowledge base for the best possible customer experience ⭐ Analyzing your existing setups, cleaning the design for best performance, and reducing the licensing’s costs ⭐ Migration from Server to Cloud or Cloud to Server/Data Center ⭐ Customization's, troubleshooting, and fixing any configurations or issues like (Scrum Boards, Kanban Boards, Agile Process implementation, Efficient JQL Filters, Setting up SLA’s, Reporting and Dashboards, Permissions & Notification Schemes, Workflow customizations, Custom Fields, Issue Types, Screen schemes) ⭐ Development of custom plugins, Confluence macros, templates, automation ⭐ Any third party applications training's, configurations, and support like Jira portfolio, Big Picture, Tempo Timesheets, automation for Jira, ScriptRunner, CodeRunner ⭐ Custom development, customization, automation & any groovy scripting using any tool like ScriptRunner, CodeRunner. ⭐ Custom Rest API’s development for Jira to support your business needs. ⭐ Integrate Jira with external tools ⭐ Implement and integrate the collocation tools like Slak, MatterMost, RocketChat SKILLSET: 👍 Atlassian tools & DevOps Expert (Jira, Jira Service Desk, Confluence, Bamboo, Bitbucket, GIT, Jenkin, GitHub) 👍 Development experience utilizing Atlassian REST services and JIRA plugins using the Atlassian SDK 👍 Experience in administering JIRA of large scale (3,000+ users and 300+ projects) business-critical environments 👍 Expertise in DevOps Implementation, Value Stream mapping, metrics Continuous Integration, Continuous Deployment, Continuous Testing & Continuous Delivery 👍 Expert in all project management and third-party plugins like Portfolio, Big Picture, Tempo Timesheets 👍 Expert in Jira automation using groovy scripting 👍 Jira integration expert with any external tools 👍 Programming Languages Expertise: o C# o Java o Java Script o Groovy o Python Search Keywords Jira Consultant, Atlassian JIRA Consultant, Atlassian Confluence, Bitbucket, Jira Expert, Confluence Expert, Jira SME, Atlassian SME, Confluence SME, Jira scripting, Jira Developer, Jira plugin, Jira addon, Jira add-on, Jira Agile, Jira configuration, jira workflows, Jira permissions, Jira architect, Jira professional, Jira Consultant, Jira migration, Jira help, Jira tutor, Jira mentor, Jira trainer, Jira administration, Jira administrator, Jira support, Jira technical support, Jira Align, Jira consultancy, Jira architect, Senior Jira Consultant, Jira integration expert
    vsuc_fltilesrefresh_TrophyIcon Groovy
    Automated Testing
    Training
    Migration
    ServiceNow
    Jira
    Test Automation Framework
    Agile Project Management
    RESTful API
    Apache Groovy
    Database
    Agile Software Development
    Atlassian Confluence
    Atlassian Crowd
    Project Workflows
    Scripts & Utilities
    System Administration
  • $10 hourly
    An expert Java, Python developer with Masters degree in Natural language processing (NLP) & Machine Learning, having 6+ years of software development experience. What I do: - Java development using Spring/Spring MVC/Spring Boot. - Write Technical focused articles - Develop Python scripts - Teach Java, Python, Spring, and SQL courses 1on1 In ML & NLP area: - Text classification, Tokenization & Noise removal (Preprocessing). - POS Tagging, Stemming & Lemmatization. - Text clustering by using word embedding. - Machine translation & transliteration (text-to-text). - Information Extraction and Named Entity Recognition. - Sentiment Analysis & Legal Document Analysis. - Legal Document Analysis. - Phrase Matching and Vocabulary Hard skills: - Development: Python, Java, Groovy, Spring MVC, VueJS, SQL - NLP: NLTK, CoreNLP, OpenNLP - Machine Learning: NumPy, SciPy, Scikit-learn, Weka - Deep Learning: PyTorch - DBA: MySQL, MongoDB Throughout my career, I have effectively worked in both independent and collaborative environments.
    vsuc_fltilesrefresh_TrophyIcon Groovy
    Apache Groovy
    Full-Stack Development
    Web Development
    GraphQL
    RESTful API
    Vue.js
    Technical Writing
    Blog Writing
    Spring Framework
    Machine Learning
    Java
    Python
  • $50 hourly
    ⭐ Atlassian © ACM, ACP-100, ACP-120, ACP-300, ACP-400, ACP-420, ACP-600, ACP-620 ⭐ Scrum.org © PSM I, PSPO I ⭐ 8+ yrs ■ High availability and quick response ⭐ 100% 5★ testimonial ⬜ ATLASSIAN © Atlassian Certified Master 🎖 ACP-100 ■ Certified Jira Administrator 🎖 ACP-120 ■ Certified Jira Cloud Administrator 🎖 ACP-300 ■ Certified in Agile Development with Jira Software 🎖 ACP-400 ■ Certified in Jira Service Desk Administration 🎖 ACP-420 ■ Certified in Managing Jira Service Projects for Cloud 🎖 ACP-600 ■ Certified Jira Project Administration 🎖 ACP-620 ■ Certified in Managing Jira Cloud Projects ⬜ SCRUM.ORG © 🎖 PSM 1 ■ Professional Scrum Master 1 🎖 PSPO 1 ■ Professional Product Owner 1 During my past years, I have worked with the Atlassian suite as a: ✅ Business User ✅ Software Developer (Mobile Application) ✅ Project Manager ✅ Atlassian Plugins Developer ✅ Atlassian Administrator ✅ Atlassian Custom Integration (ScriptRunner, Groovy + Python Scripting) ✅ Agile/SCRUM Master I am your BEST value you are looking for !
    vsuc_fltilesrefresh_TrophyIcon Groovy
    Marketing Automation
    CRM Automation
    HubSpot
    Atlassian GreenHopper
    Jira
    No-Code Development
    Airtable
    Low-Code Development
    Zapier
    GitHub
    Python
    ITIL
    Atlassian Confluence
    GitLab
  • $50 hourly
    Hi, I am a full stack developer with close to 11 years of experience. I have worked with Groovy/Grails, Clojure , JavaScript along with some other languages/frameworks for building api backends, web based apps and mobile apps. I have worked on eCommerce apps, social media apps and content publishing platforms. I have considerable experience in using AWS and other clouds. I believe in doing test driven development
    vsuc_fltilesrefresh_TrophyIcon Groovy
    Agile Project Management
    Amazon Web Services
    Git
    jQuery
    Apache Groovy
    Clojure
    Java
    JavaScript
    Grails
    React
    ClojureScript
  • $60 hourly
    Scott has worked on several sites including The Daily Exposition, The Arcade Corner, Beer Money Funds. As well as his own website SERT Media which focuses on all of his web development work. Scott specializes in website optimization, malware removal, hosting, site migration, and SEO. He uses CSS, JavaScript, HTML, PHP, and WordPress. When Scott is not working he is often found traveling with his girlfriend, working on his own websites, or reading up on the latest scientific discoveries.
    vsuc_fltilesrefresh_TrophyIcon Groovy
    Website Security
    Page Speed Optimization
    SEO Audit
    Genesis Framework
    HTML
    Business with 1-9 Employees
    Divi
    PHP
    CSS
    JavaScript
    CSS 3
    WordPress
    Elementor
    Search Engine Optimization
  • $30 hourly
    🏆 Certified Full-Stack Java Developer Ready to Elevate Your Projects! 🏆 🚀 About Me: 🚀 With a decade-long journey in Java development, I'm your go-to partner for turning your software dreams into reality. My repertoire includes a specialization in Java FullStack Development, Spring Certification, and AWS expertise, ensuring your projects are in capable hands. 🛠️ Your All-in-One Development Partner: 🛠️ From crafting pixel-perfect frontend designs to architecting robust backend systems, I'm equipped to handle every aspect of your web development needs. With a track record spanning from single landing pages to complex enterprise solutions, I thrive on new challenges. ✅ Expertise Highlights: ✅ 🎨 Frontend Wizardry: AngularJS, ReactJS, Vue.js, and more – I bring your UI visions to life with elegance and functionality. 💻 Backend Brilliance: Java, Spring Framework, Firebase – my backend solutions are the backbone of your applications, handling everything from data manipulation to security. 🗃️ Database Mastery: MySQL management expertise ensures efficient data handling and integrity. 🌐 Cloud Architect: As an AWS Certified Solutions Architect, I design scalable, secure, and cost-effective cloud infrastructures for your projects. 🌟 Commitment to Excellence: 🌟 💼 Reliable Partner: I take pride in delivering top-notch solutions that exceed expectations. 📚 Continuous Learning: Keeping up with the latest tech ensures your projects are cutting-edge. 🤝 Building Partnerships: Long-term relationships built on trust and success are my priority. 😊 Customer Satisfaction: Your happiness is my mission; I'm dedicated to going the extra mile for your project's success. ⭐ Let's Collaborate and Innovate! ⭐ I'm excited to discuss how my skills can fuel your projects' success. Reach out today, and let's bring your software visions to life!
    vsuc_fltilesrefresh_TrophyIcon Groovy
    Unit Testing
    Spring Boot
    Spring Framework
    JavaScript
    React
    API Integration
    MongoDB
    Angular
    SaaS
    Java
    Microservice
    Hibernate
    Amazon Web Services
    J2EE
    API Development
  • $70 hourly
    Atlassian Certified Expert (TOP RATED PLUS-ACM ) ⏰ 2400 hours worked across over 60 happy customers on Upwork. 🎖 ACE is Atlassian's most prestigious Certification. Atlassian Certified Masters hold at least four Atlassian Certified Professional-level credentials, demonstrating their expertise across multiple Atlassian products. 🎖 Atlassian Certified JIRA Administrator (ACP-JA) 🎖 Atlassian Certified Confluence Administrator (ACP-CA) 🎖 Atlassian Certified Jira Service Management (ACP-400) 🎖 Atlassian Certified Managing Jira Cloud Projects (ACP-620) 🎖 Scrum Master (PSM1) 🎖 Issue security in Jira I have extensive experience in managing software development teams working in an Agile environment 5+ years experience in JIRA & Confluence administration involving creation and management of custom, complex projects, workflows, security schemes, custom fields, dashboards and reports configurations. I deliver comprehensive training to the end-users (Jira administrator/users, ConfluenceAdministrator/users , Crowd , EazyBI, Xray , Structure ..). Leading, planning, and managing documentation projects for product releases. -Developing applications by customizing fields, permission, and workflow. -Create customized dashboards for teams. -Create team specific Agile process flow in JIRA to move tasks from one activity to another. -Installation and configuration of continuous Integration servers. -Administration of Visual SVN repositories and support tortoise users. -Investigated various products from Atlassian JIRA. -Integration of Tempo Time Tracking Tools in JIRA. -Developing customized workflow for transaction parallel approval. -Built templates and dashboards for customized views of the data specific to each group and line of business. -Validated best business practices and rules to implement with the new model along with appropriate user approvals and sign-off. -Helping Scrum master across the company to customize JIRA for their requirements. -Data Management: DB configuration, Site backup, configuration of attachments, Data import and Export. -Configuration of email notifications on status change. -Configuration for automatic issue creating through the mail, customize status, etc. -Create complex JIRA workflows including project workflows, field configurations, screen schemes, permission schemes, and notification schemes. -Helping Scrum master across the company to customize JIRA for their requirements. -Work closely with stakeholders to successfully complete IT infrastructure projects. -Take the overall responsibility for the Jira configuration and be the go-to person for any Jira issues, enhancements or best practice question. -Serve as a technical advisor and the primary implementer for new capabilities in JIRA. -Create team specific Agile process flow in JIRA to move tasks from one activity to another. -Installation and configuration of continuous Integration servers. -Create customized dashboards for teams. -Developing confluence pages. -Provide support for the application and infrastructure including troubleshooting, performance tuning. -Integrate User with Microsoft Active Directory.
    vsuc_fltilesrefresh_TrophyIcon Groovy
    Atlassian Bamboo
    Atlassian Crowd
    Data Migration
    Business Report
    Scripting
    Administrative Support
    Bitbucket
    Critical Thinking Skills
    Apache Groovy
    Business Analysis
    Scaled Agile Framework
    Atlassian Confluence
    Agile Project Management
    Jira
  • $60 hourly
    With over 13 years of dedicated service, I have contributed more than 36,000 hours of consultancy, significantly impacting businesses from startups to Fortune 100 and Fortune 500 companies. My dedication to excellence is proven by a 100% client recommendation rate on Upwork, with 64% of my clients establishing long-term relationships due to swift communication and the delivery of efficient, high-quality solutions. As a Certified Atlassian expert, I specialize in optimizing your business operations through comprehensive Atlassian services. My commitment is to provide seamless, efficient solutions tailored to your specific needs, ensuring your projects and teams are set up for success. Services Offered: ◼ Platform Selection and Setup: Guidance on choosing the right Atlassian platform (Server, DC, or Cloud) and configuring it to meet your business needs. ◼ Product Installation & Configuration: Expert installation and customization of any Atlassian product to align with your operational requirements. ◼ Troubleshooting & Fixes: Quick identification and resolution of any issues within your Atlassian environment. ◼ Efficient Solution Design: Translating business needs into effective, high-quality Atlassian-based solutions. ◼ Training & Documentation: Offering both 101 and corporate-level training on the Atlassian stack, complete with customized materials. ◼ Custom Development: From idea to marketplace, developing bespoke integrations or add-ons to extend your Atlassian tools' functionality. ◼ Data Migration: Seamless migration of your data across different platforms, ensuring no interruption to your business processes. ◼ Best Practices & Agile Implementation: Applying industry best practices and agile methodologies to optimize your team's efficiency and productivity. ◼ Ad-hoc Consultancy or Ongoing Support: Whether you need one-time advice or continuous support with agreed SLAs, I'm here to assist. ◼ Optimization Services: From setting up your Service Desk for maximum customer satisfaction to auditing and cleaning up your instance for cost efficiency. Reach out to discover how we can leverage Atlassian tools to streamline your operations and achieve your business goals. You can find me using the following keywords (Upwork search): Atlassian Consultant, Jira Consultant, Atlassian Jira Consultant, Confluence Consultant, Atlassian Confluence Consultant, Jira Service Management Consultant, Atlassian Jira Service Management Consultant, Atlassian Expert, Jira Expert, Atlassian Jira Expert, Confluence Expert, Atlassian Confluence Expert, Jira Service Management Expert, Atlassian Jira Service Management Expert, Atlassian SME, Jira SME, Confluence SME, Jira Service Management SME, Jira migration, Jira Professional, Jira Workflows, Jira Screens, Jira Permissions, Jira Custom Fields, Jira Automation, Jira Architect, Jira Support, Jira Services, Jira Administrator, Jira Admin, Confluence Administrator, Confluence Admin, Automation for Jira, Atlassian Consultancy, Jira Consultancy, Confluence Consultancy, Jira Service Management Consultancy, Advanced Roadmaps, Jira Align, Atlassian JIRA, Atlassian Confluence, Bitbucket, Jira Expert, Confluence Expert, Jira SME, Atlassian SME, Confluence SME, Jira scripting, Jira Developer, Jira plugin, Jira addon, Jira add-on, Jira Agile, Jira configuration, jira workflows, Jira permissions, Jira architect, Jira professional, Jira Consultant, Jira migration, Jira help, Jira tutor, Jira mentor, Jira trainer, Jira administration, Jira administrator, Jira support, Jira technical support, Jira Align, Jira consultancy, Jira architect, Senior Jira Consultant, Jira integration
    vsuc_fltilesrefresh_TrophyIcon Groovy
    Automation
    Process Design
    API
    DevOps
    Atlassian Confluence
    Bitbucket
    Agile Software Development
    Java
    Apache Groovy
    Agile Project Management
    Jira
  • $30 hourly
    I am a software developer with a specialization in Cyclos digital banking. I have years of experience working with Cyclos, a powerful and flexible digital banking platform that is used by financial institutions around the world. My expertise in Cyclos includes developing custom modules and plugins, integrating third-party services and APIs, and providing technical support for clients who use the platform. I have experience working with both the Community Edition and the Enterprise Edition of Cyclos, and I am familiar with the various features and functionalities of the platform, including payment processing, user management, and reporting. In addition to my Cyclos expertise, I am also proficient in a variety of programming languages and technologies, including Java, PHP, JavaScript, and MySQL. I have experience working with web development frameworks such as Angular and React, as well as mobile app development frameworks such as Ionic and React Native. As a software developer, I am committed to delivering high-quality code that is well-documented, easy to maintain, and meets the specific requirements of my clients. I am comfortable working independently or as part of a team, and I am always willing to learn new technologies and skills to stay up-to-date with the latest trends in software development. If you are looking for a skilled and experienced Cyclos developer for your digital banking project, please don't hesitate to contact me.
    vsuc_fltilesrefresh_TrophyIcon Groovy
    ConnectWise Automate
    HTML5
    API
    CSS
    MySQL
    SQL
    Java
    RESTful API
    Apache Groovy
    Scripting
    Bash
    PHP
  • $60 hourly
    I'm one of the positive, result oriented and motivating person. Solid technical skills in various areas of IT operations/administration, CI, cloud and delivery automation come in a package with leadership and positive pragmatism at work. As a Solution architect, I designed and built infrastructure for many projects: a high-load web service, high-available environments for an internet bank, scalable infrastructure for a fintech startup. Skills: - Design cost-effective and scalable infrastructure; - DevOps (automatic provision using Chef, OpsWorks, Ansible); - Infrastructure provision (Terraform, CloudFormation) - Kubernetes (EKS, Spinnaker, GitOps); - Linux maintenance (CentOS, Debian, Ubuntu, CoreOS, RHEL); - Continuous Integration, Continuous Delivery (Jenkins, Bamboo, Go.CD); - Cloud hosting (AWS, Azure, Google Cloud Platform); - Databases (MySQL, PostgresQL, Mongo); - Monitoring (Zabbix) - Message brokers (Kafka, RabbitMQ, Redis) - Python programming; - Mail servers (postfix, antispam/antivirus, clamav/spamassassin/amavis, courier, dovecot); - Networking (DHCP, DNS, VPN, OpenVPN, firewalls: iptables/ipfw, proxies).
    vsuc_fltilesrefresh_TrophyIcon Groovy
    Docker
    Jenkins
    Terraform
    Linux System Administration
    Kubernetes
    AWS CloudFormation
    Solution Architecture
    MySQL
    Containerization
    Database Administration
    Continuous Integration
    Amazon Web Services
    Python
  • $30 hourly
    Java architect with more than 21 years of experience in following technologies- ✔ Java, Enterprise Java, Grails, Groovy, EJB, JSP, JSF2, Servlets, Hibernate,JPA, Mybatis, Struts(1.3,2.0), Netflix OSS, Spring Cloud, Spring Boot, Spring, Spring-MVC, Tiles, REST, AngularJS-2, Javascript, JQuery, AJAX, OSGi, SOAP, JSON, Ajax, Axis, JAX-WS, JSR-168, MDB, JMS, Hibernate-search, Lucene,Solr, Liferay, LDAP, AD, JUnit, Equinox, CXF, Grails with Groovy, Vaadin, OSGi, UML, Castor, Pentaho, Jasper, BIRT, Selenium, Swing, AWT, Oracle, DB2, SqlServer, MySql,PostgreSQL, MongoDB, Highcharts, Play, Activiti BPM, Camunda, Apache Kafka, Rabbit MQ, Elastic search, AWS, XMPP, Google Aanalytics, Piwik, Adwords, SEO, Docker ✔ Cloud services : AWS (EC2, RDS,SQS, S3), Google, Azure ✔ Application Servers: Websphere , Weblogic, JBoss, Glassfish, Geronimo ✔ Web Servers: Tomcat, Apache, Resin, Nginx ✔ Packages: WCS, ATG, Sterling Commerce(Yantra) OMS, Manhattan TMS, OMS, TPM, Oracle PIM, Tibco, Webmethods, WordPress, Zimbra. ✔ Social Integration : Facebook, Twitter, YouTube, Linkedin, Google+ Integration ✔ Payment Gateway : Paypal, Stripe, Twillo ✔ Methodology: RUP, Agile, XP, TDD ✔ IDE: IntelliJ, GGTS, Eclipse, NetBeans, JDeveloper, JBuilder, RAD ✔ Code Versioning: ClearCase, SVN, Mercurial, GIT ,TFS, StarTeam ✔ Quality: ClearQuest, Quality Center ✔ Build: Gradle, Maven, Ant, Ivy ✔ CI: Hudson, Jenkins ✔ Performance: JProfiler, JMeter, LoadUI ✔ Project Tracking: JIRA, Redmine, MPP ✔ Misc : Confluence, Crucible, Fitnesse, LPSolve, SoapUI, WLE, Toad, Rational Rose Have extensive expertise in developing complex business solutions using Java/Enterprise Java, Groovy with Grails and related technologies for the following verticals - Supply Chain Management * E-Commerce * Investment Banking and Finance * Analytics * Health-care Have developed enterprise products for * Manhattan's OMS, TMS, Inventory Management, Trading Partner Management * FICO's Insurance Fraud Manager - used predictive analytic models. Have taken multiple e-commerce applications to production and provided support thereafter for * Tesco change program * GE power system Parts-Edge system * Met-life online quote system Expertise in- Architecture, Design, OOAD, SOA, Design Patterns, UML, Providing Scalable Solution, RUP and Agile methodology, Java, Enterprise Java, Open Source Frameworks
    vsuc_fltilesrefresh_TrophyIcon Groovy
    Grails
    Spring Framework
    Hibernate
    EJB
    Jakarta Server Pages
    SQL
    Apache Groovy
    jQuery
    Java
  • $40 hourly
    Experience in Java (J2EE) development and product architecture for 15 years, Have worked on Hibernate, Spring (MVC, AOP, Transaction management), JSP/Servlet, Guice, Jersey, JUnit, Tomcat, Jetty, Ajax, Grizzly, JQuery, Mysql, Oracle, MongoDB and DynamoDB I have substantial background delivering large scale, mission critical, real-time and low latency projects on time. I have worked as a Technical Architect, Java Team Lead and Senior Java developer. I believe that one of my strongest points is ability to balance long-term strategic development with timely delivery of tactical solutions. I like to work from the inception phase of the product and take it to the final completion. I am pretty flexible with respect to working hours.
    vsuc_fltilesrefresh_TrophyIcon Groovy
    Core Java
    Amazon S3
    Amazon EC2
    API Development
    RESTful Architecture
    Spring Boot
    Google Guice
    React
    Quartz
    MongoDB
  • $30 hourly
    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
    vsuc_fltilesrefresh_TrophyIcon Groovy
    Agile Software Development
    Elasticsearch
    RESTful API
    Software Architecture & Design
    Web Development
    React
    AngularJS
    Grails
    JavaScript
    Java
    HTML5
    MongoDB
    Spring Framework
    AJAX
  • $50 hourly
    I'm an Oracle-certified Java expert with much experience in backend technologies, including but not limited to Spring Framework, JPA, MongoDB, etc. I'm also an AWS-certified and Kubernetes-certified DevOps engineer; hence, I can help if you need additional infrastructure resources. With 15,000+ hours of work on Upwork alone, I believe I can make a meaningful contribution to your project. As a side note, if you do a Google search with the keywords "spring bean", "spring boot interview questions", or "maven integration testing", you'll find my writing at the top spots.
    vsuc_fltilesrefresh_TrophyIcon Groovy
    Terraform
    Docker
    Web Service
    Hibernate
    RESTful API
    MySQL
    API
    Kubernetes
    Amazon Web Services
    Spring Framework
    Spring Boot
    Java
  • $45 hourly
    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.
    vsuc_fltilesrefresh_TrophyIcon Groovy
    Concrete5 CMS
    RESTful API
    MongoDB
    PostgreSQL
    Spring Boot
    Java
    React
    Ruby on Rails
    PHP
    Python
    Grails
    Laravel
    MySQL
    CakePHP
    CodeIgniter
  • $50 hourly
    I have 10 years experience architecting and building cloud-based full-stack applications from scratch. I primarily work with startups, small businesses, and individuals. My expertise is web apps and apis hosted on AWS or a similar cloud. I mostly do Java and JavaScript. Am a sole freelancer, no agency. Based in the US, but flexible on timezone. Mostly interested in long term work, but okay with some short term work and smaller jobs. Mostly interested in backend work. Web Applications (Frontend, Backend, Cloud infrastructure, Databases) REST APIs and related infrastructure JavaScript, NodeJS, ReactJS and related Java, Spring, Spring Boot, JavaEE backends
    vsuc_fltilesrefresh_TrophyIcon Groovy
    RESTful Architecture
    RESTful API
    Amazon Web Services
    React
    JSON
    Spring Boot
    Java
    XML
    JavaScript
    Apache Maven
    JavaFX
    Spring MVC
    Spring Security
    SOAP
  • $45 hourly
    🌟 Atlassian Specialist: 8+ Years of Expertise in Jira Consultancy 🌟 With 17 years in the technology sector and 8 years as an Atlassian Certified Professional, I specialize in Jira, Confluence, and Service Desk solutions. My ACP-100 (Cloud) and ACP-120 (DataCenter) certifications equip me to offer customized strategies that align with your business goals. ✨ Jira & Confluence Consultancy Offerings ✨ Jira Services: - Jira Setup & Configuration: Initial setup, fine-tuning, and ongoing management. - Workflow Customization: Creating tailored workflows to meet your business requirements. - Jira Automation: Automating routine tasks and complex processes using Groovy scripting and built-in Automation Rules. - Plugin & Extension Advisory: Recommending, installing, and configuring plugins that enhance Jira's functionality. - Jira Health Checks: Periodic reviews to ensure optimal performance and compliance with best practices. - Team Training: Custom training sessions to get your team up to speed with Jira’s best practices. Confluence Services: - Confluence Setup & Management: Initial installation and ongoing administrative support. - Content Organization: Assisting in structuring spaces, pages, and permissions. - Template Design: Creating custom templates to suit project or departmental needs. - Collaboration Facilitation: Setting up and advising on best practices for team collaboration within Confluence. - Plugin & Macro Configurations: Enhancing Confluence functionality through plugins and macros. 📩 Ready to elevate your Atlassian journey? Let's connect!
    vsuc_fltilesrefresh_TrophyIcon Groovy
    SQL
    Atlassian Crowd
    DevOps
    Service Management Software
    Atlassian Confluence
    Project Workflows
    Helpdesk
    Agile Software Development
    Linux
    API
    Jira
    Scripting
    Automation
  • $112 hourly
    With 25 years of extensive experience spanning both the public and private sectors, I offer a wealth of expertise across diverse platforms and technologies. My professional journey commenced with web database development, and over the years, I seamlessly transitioned into roles encompassing data warehousing, reporting, data management, and automation – essentially delving into the entirety of the data landscape. My forte lies in the Microsoft SQL Server BI Stack, where I specialize in tailoring architectures that align with client business objectives and financial considerations. Leveraging tools such as Microsoft Azure SQL, FiveTran, SQL Server, SSIS, SSAS, SSRS, Power BI, Power BI Paginated, NetSuite, Salesforce, Azure Data Factory, ZappySys, and more, I am committed to crafting solutions that empower clients to navigate their data ecosystems autonomously. If your systems incorporate APIs and you desire insightful reporting, I can seamlessly integrate API data into Azure SQL, paving the way for the creation of visually stunning Power BI reports. Additionally, I offer expertise in advanced UI/UX design strategies and information architecture for customer-facing reports. Whether you seek guidance on effectively communicating data stories or ensuring a professional and visually appealing presentation, I am here to assist. My enthusiasm thrives on resolving highly intricate data-related challenges, aligning my skills with the unique needs of each project. I am genuinely passionate about ensuring data readiness and optimizing data functionality for my clients. Let's initiate a conversation about your project, and together, we can determine if my skills align with your requirements!
    vsuc_fltilesrefresh_TrophyIcon Groovy
    Microsoft SQL Server Programming
    Microsoft SQL Server Reporting Services
    SQL Server Reporting Services
    Microsoft IIS
    API Integration
    Data Analysis
    SQL
    SQL Server Integration Services
    SQL Programming
    Microsoft Power BI
    Transact-SQL
    Microsoft Azure SQL Database
    ASP
    Operations Analytics
    Microsoft SQL Server
  • $70 hourly
    I am a versatile and accomplished developer with a broad skill set. My strengths encompass a wide range of technical areas, including: Mobile App Development: Proficient in iOS app development using Swift, SwiftUI, and Objective-C, as well as Android app development with Java and Kotlin. I excel at creating native mobile apps that offer exceptional user experiences on both major platforms. Cross-Platform Development: Experienced in cross-platform mobile app development using technologies such as React Native (JavaScript and TypeScript) and Flutter (Dart). This expertise enables me to efficiently build apps that work seamlessly on iOS and Android. Full Stack Development: Skilled in full-stack web development, I am well-versed in using PHP, Laravel, Node.js, React.js, AngularJS, TypeScript, and various databases like MySql, MongoDB, and Firebase. This allows me to create robust and feature-rich web applications from end to end. Blockchain Development: With a strong foundation in blockchain technology, I can design, develop, and implement blockchain-based solutions for various applications. My career has been marked by successful projects, and I bring my extensive experience to every new endeavor. I hold [mention your highest level of education and any relevant certifications, if applicable]. I am eager to take on new challenges, deliver outstanding results, and contribute to innovative projects that benefit from my diverse skill set. Let's collaborate to bring your ideas to life and drive success.
    vsuc_fltilesrefresh_TrophyIcon Groovy
    Python
    Generative AI
    Blockchain
    Mobile UI Design
    Graphic Design
    Smart Contract
    iOS Development
    Mobile App Development
    React Native
    Swift
    Objective-C
    Kotlin
    Java
    Android App Development
    Flutter
  • $50 hourly
    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.
    vsuc_fltilesrefresh_TrophyIcon Groovy
    iOS Development
    SQL Programming
    J2EE
    Android
    Java
    Grails
    Hibernate
    jQuery
  • $30 hourly
    Hi, my name is Irvan. A senior full-stack/ backend engineer with over 13+ years of experience. Experienced in Microsoft technologies, with related skills like ASP.NET (WebForms / MVC), Razor, Javascript/JQuery, XML, Azure, REST, Web Services, MS SQL Server, MySQL, Umbraco, Telerik, DevExpress, Orchard, NopCommerce, Entity Framework, Dapper. Over the last 12 years, I have developed a wide range of web applications for small and large businesses with over 5000+ users giving positive feedback. I can consider myself as a Passionate Website Developer. In my opinion, the deadline is a big responsibility and I have to fulfill that responsibility with smart and hard work. That's the reason why I always try to finish the project as soon as possible with 24/7 days non-stop working if necessary. I love challenges, learning new technologies and working hard. I'm also seeking a client for the long term relationship. Please DON'T HIRE me. (i'm just kidding, need a job immediately 😋)
    vsuc_fltilesrefresh_TrophyIcon Groovy
    Mobile App
    React
    Umbraco
    Web Development
    Flutter
    Microsoft Azure
    nopCommerce
    Microsoft SQL Server Administration
    PHP
    C#
    ASP.NET MVC
    ASP.NET
  • $85 hourly
    So you need an application? And you don't have time or know-how to supervise and guide its development? You just want a working, high quality, hassle-free solution? I'll handle it. I'm an IT consultant, hands-on software architect, team leader, java developer. But it's not just my work. I'm also an open-source creator, conference speaker and a blogger. Also I created a framework for integration testing. I care about delivering business value which usually means not only working software but also: - speaking business language, not technical gibberish - long-term stable maintenance and adjustment to constantly changing scope and requirements - understanding business process to offer solutions with best benefit-cost ratio - sometimes delivering quick-win solutions and later replacing them with long-term ones in a controlled manner - thinking ahead - having plan B In my career I was doing variety of tasks, including: rescuing falling projects, feasibility analysis, performance tuning, project kick-offs, proof of concepts, giving trainings, advocating new technologies in company's technology stack, choosing vendors, gathering requirements, facing clients. I also had the opportunity to work in many different fields, some of them were: - AI in healthcare - big data - proximity marketing - high volume central authorization system - systems integration - real time statistics - medical protocol violations tracking - identity correlation and synchronization And a bit more technically: I'm a Haskeller wannabe and a big fan of automated testing, CI/CD, code reviews, functional languages and polyglot programming. I do my best to stick to clean code and software craftsmanship principles. I believe that if an application can't run on developer's laptop then it's too heavy. And I can't live without git.
    vsuc_fltilesrefresh_TrophyIcon Groovy
    Full-Text Search
    Performance Optimization
    Machine Learning
    Artificial Intelligence
    Web Development
    Spring Framework
    Amazon Web Services
    Microservice
    Docker
    Java
  • $20 hourly
    I am a full-time freelancer with 15 years of experience in Java and Documentum. - J2EE,SpringBoot,Spring MVC, Spring Batch, Spring Integration, Hibernate, JPA, SpringAOP, Security, Swing, JSF, Primefaces - Documentum 5.x,6.x,7.x,16.4 , Alfresco 5.X - System Architecture, Clustering, Agile, Microservices, Multi-Tenant - oAuth2 Integration with social networking sites. - REST/SOAP web services, Websocket, Stomp, Socket.io, - AWS Fargate, Docker, AWS ECS, JWT, Apache Kafka, ElasticSearch, Keycloack - Amazon S3 SDK, Redis, AWS EC2,Terracotta (ehcache),Stripe payment - Oracle DB, MySql8, Postgres, MSSqlServer, JBoss, Tomcat, Weblogic12 - Source code management systems - SVN, Git,Bitbucket - Code quality and CI - Sonar, CI/CD Jenkins - Reporting Tool -JasperReports, Crystal Report - Build systems Maven, Ant, gradle, npm - Front end technologies - HTML4/5,XHTML, XML, CSS, Ajax, javascript - AIX, HPUX, Linux, Windows, OCR tesseract, IText, Apache POI. Spring Social - Excellent technical and logical problem-solving skill - High-Quality conscious, Team Leading ability I did a Bachelor of Computer Science Engineering and worked in many multinational IT companies.
    vsuc_fltilesrefresh_TrophyIcon Groovy
    Spring Security
    Database
    Spring Boot
    RESTful API
    Elasticsearch
    Docker Compose
    API
    SQL
    Hibernate
    Spring Framework
    Documentum
    Jakarta Server Faces
    Docker
    Java
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