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  4. (Current) Drools Specialists
  • $100 hourly

    • 5.0/5
    • (140 jobs)
    — TOP RATED PLUS Freelancer on UPWORK — EXPERT VETTED Freelancer (Among the Top 1% of Upwork Freelancers) — Full Stack Engineer — Data Engineer ✅ AWS Infrastructure, DevOps, AWS Architect, AWS Services (EC2, ECS, Fargate, S3, Lambda, DynamoDB, RDS, Elastic Beanstalk, AWS CDK, AWS Cloudformation etc.), Serverless application development, AWS Glue, AWS EMR Frontend Development: ✅ HTML, CSS, Bootstrap, Javascript, React, Angular Backend Development: ✅ JAVA, Spring Boot, Hibernate, JPA, Microservices, Express.js, Node.js Content Management: ✅ Wordpress, WIX, Squarespace Big Data: ✅ Apache Spark, ETL, Big data, MapReduce, Scala, HDFS, Hive, Apache NiFi Database: ✅ MySQL, Oracle, SQL Server, DynamoDB Build/Deploy: ✅ Maven, Gradle, Git, SVN, Jenkins, Quickbuild, Ansible, AWS Codepipeline, CircleCI As a highly skilled and experienced Lead Software Engineer, I bring a wealth of knowledge and expertise in the areas of Java, Spring, Spring Boot, Big Data, MapReduce, Spark, React, Graphics Design, Logo Design, Email Signatures, Flyers, Web Development (HTML, CSS, Bootstrap, JavaScript & frameworks, PHP, Laravel), responsive web page development, Wordpress and designing, and testing. With over 11 years of experience in the field, I have a deep understanding of Java, Spring Boot, and Microservices, as well as Java EE technologies such as JSP, JSF, Servlet, EJB, JMS, JDBC, and JPA. I am also well-versed in Spring technologies including MVC, IoC, security, boot, data, and transaction. I possess expertise in web services, including REST and SOAP, and am proficient in various web development frameworks such as WordPress, PHP, Laravel, and CodeIgniter. Additionally, I am highly skilled in Javascript, jQuery, ReactJs, AngularJs, Vue.Js, and Node. C#, ASP.NET MVC In the field of big data, I have experience working with MapReduce, Spark, Scala, HDFS, Hive, and Apache NiFi. I am also well-versed in cloud technologies such as PCF, Azure, and Docker. Furthermore, I am proficient in various databases including MySQL, SQL Server, MySql, and Oracle. I am familiar with different build tools such as Maven, Gradle, Git, SVN, Jenkins, Quickbuild, and Ansible.
    Featured Skill Drools
    Apache Spark
    Database
    WordPress
    Cloud Computing
    Spring Framework
    Data Engineering
    NoSQL Database
    React
    Serverless Stack
    Solution Architecture Consultation
    Spring Boot
    DevOps
    Microservice
    AWS Fargate
    AWS CloudFormation
    Java
    CI/CD
    Amazon ECS
    Containerization
  • $40 hourly

    • 3.9/5
    • (4 jobs)
    I am passionate on WSO2 solutions with professional development. I have experience in solution architecture and enterprise integration covering multiple technologies. Also I have experience in working with large scale projects, I am through on ; ● Design, configure and implement integration for heterogeneous partners. ● Implementation of API Gateway solution with WSO2 API manager. ● API security integration with Oauth 2.0 and Mutual SSL. ● Implement OpenID Connect based Single Sign On solutions with WSO2 Identity Server. ● Responsible platform delivery including CI/CD process. including follwing technologies; ● Enterprise Integration: WSO2 APIM, EI, MI, IAM ● Continuous Integration and DevOps: Jenkins ● Integration tools: WSO2 Developer Studio, Eclipse, IntelliJ ● Frameworks: Spring Boot, OSGI, Open API 3.0 ● Technologies: Java, Maven, RabbitMQ, Apache Kafka ● Environment: AWS (EC2, SQS, SNS) ● Continuous Integration and DevOps: Kubernetes, Jenkins ● Source code management: Atlassian Bitbucket, Github ● Project Management: Atlassian Confluence, Atlassian JIRA I would like to consult you through high quality delivery
    Featured Skill Drools
    JUnit
    MySQL Programming
    RabbitMQ
    Data Integration
    Amazon Web Services
    API Development
    RESTful Architecture
    Core Java
    Software Integration
    Spring Boot
    API Integration
    Java
    WSO2
  • $35 hourly

    • 5.0/5
    • (28 jobs)
    I'm senior software engineer with very good knowledge of Java, and Business process management. the following list will show my knowledge areas : 1-Business Process Management (BPM). - (Camunda), (Activiti), (JBPM), (Bonita). 2-Business Process Model and Notation (BPMN). 3-Process Modeling and Workflow Design. 4- software engineering - OOP, Design patterns, Agile, Scrum 5- JAVA stack -Java, java EE, JDBC, JPA, Hibernate, -Spring framework including (IOC container, MVC, AOP, security, data , REST and spring Boot, JDBC Template) 6-DATABASE -Oracle(SQL, PLSQL) -SQL server -Mysql
    Featured Skill Drools
    Business Process Modeling
    jBPM
    Business Process Management
    Project Workflows
    Process Modeling
    Business Process Model & Notation
    Bonita
    Spring Boot
    SQL
    Hibernate
  • $30 hourly

    • 5.0/5
    • (7 jobs)
    Top-Rated Java Developer | $20K+ Earned | 100% Job Success With over $20K earned on Upwork, I am a highly skilled Java Developer with experience across 4 international projects. My expertise has consistently earned me 5-star ratings, making me a top-rated freelancer on the platform. I specialize in Java and J2EE technologies, delivering robust and scalable solutions that exceed client expectations. Highlights: - 4 International Projects successfully completed, including complex real-time systems and enterprise applications. - $12,460 Project for Java Stream Analyzer using Esper CEP and Spring Boot. - 435+ Hours dedicated to delivering high-quality solutions for clients globally. Client Feedback: "Ashish is the best developer we’ve worked with so far!" "Exceptional Java expertise with a perfect blend of professionalism and dedication." Looking for a reliable and proficient Java Developer? Let’s connect and bring your project to life with top-tier development services. Availability: More than 30 hours/week | $30/hr
    Featured Skill Drools
    Jakarta Messaging
    JavaScript
    Java
    Spring Security
    RESTful API
    Java Persistence API
    Microservice
    Spring Boot
    jQuery
    Spring MVC
  • $25 hourly

    • 4.9/5
    • (35 jobs)
    Overall 13+ years of enterprise application development experience with Camunda 7, Camunda 8(Zeebe) BPM, Flowable BPM, Activiti BPM, JBPM, Drools and ECM, Business process management (BPM), Spring boot, Rest API, Spring Security, Hibernate, JPA, Angular, AWS services, Spring boot micro services. BPM (Business process management platform) -Camunda 7 BPM -Camunda 8 Zeebe(C8) -Flowable BPM -JBPM -Activiti BPM DevOps -Docker -Kubernetes -Amazone ECS, EKS -Jenkins Integration Framework -Apache Camel Search engines -Elasticsearch -Apache Solr -Apache Lucene Event streaming platform - Apache Kafka Confluent Reporting tools -Jasper Reports IAM (Identity and access management) tools Keycloak(Authentication, Authorization, SSO, SPI, Social Logins etc.) Strong front end developers team having 5-12 years of experience. -Angular -ReactJs -NodeJs Payment Gateway Integration -Stripe -Paypal -Razorpay -Moneris UI/UX Designing -PSD to HTML -Web Designing -Adobe XD to HTML Corporate/Personal trainings in -Camunda 7 BPM -Camunda 8(C8, Zeebe) -Flowable BPM -Activiti BPM -JBPM -Elastic Search
    Featured Skill Drools
    Spring Boot
    jBPM
    Node.js
    Amazon Web Services
    Angular
    Elasticsearch
    RabbitMQ
    Spring Security
    Apache Solr
    Microservice
    Business Process Model & Notation
    Apache Kafka
  • $40 hourly

    • 5.0/5
    • (1 job)
    I am a Senior Software Engineer with strong hands on experience in Java ,Spring and Security. I can help you with building scalable application. I have customised end to end application based on requirements. I can help you with solutions for your application.
    Featured Skill Drools
    XML
    REST API
    Postman
    Spring Framework
    Spring Security
    MongoDB
    Microservice
    G-Cloud
    Google Cloud Platform
    OAuth
    Spring Boot
    Java
  • $25 hourly

    • 5.0/5
    • (5 jobs)
    💻 Salesforce Developer | Architect | 25.00/hr | Top Rated Plus | Certified Salesforce Expert I’m a Salesforce Developer & Architect with over 5 years of experience delivering scalable, high-performance Salesforce solutions. I specialize in Apex, Lightning Web Components (LWC), API Integrations, Marketing Cloud, CPQ, Commerce Cloud, and complex multi-cloud implementations. I’ve successfully helped businesses of all sizes optimize their Salesforce platforms, streamline operations, and boost productivity. 🚀 --- 🏆 Salesforce Certifications - ✅ Certified Administrator (ADM 201) - ✅ Advanced Administrator (ADM 211) - ✅ Platform App Builder - ✅ Sales Cloud Consultant - ✅ Service Cloud Consultant - ✅ Platform Developer I & II --- ⚡ Core Skills & Technologies 👨‍💻 Salesforce Development - 🛠️ Apex Classes, Triggers, Batch Jobs, SOQL/SOSL - ⚡ Lightning Web Components (LWC), Aura Components, Visualforce - 🔗 Salesforce DX, OAuth, SSO, Named Credentials - 🌐 REST & SOAP API Integrations, WSDL, External Services - 🔄 Declarative Tools: Flows, Process Builder, Approval Processes ☁️ Salesforce Cloud Expertise - 💼 Sales Cloud: Opportunity/Lead Management, Collaborative Forecasting, Custom Territory Management - 🛎️ Service Cloud: Live Agent, OpenCTI, Knowledge Base, Entitlement & Contract Management - 📧 Marketing Cloud: Journey Builder, AMPScript, Dynamic Content, Automation Studio, MC Connect - 🛍️ Commerce Cloud: Frontend (ISML, HTML, CSS, SCSS), Backend (jQuery, AJAX, JSON, Gulp.js) - 👥 Community Cloud: Branded Partner & Customer Communities (Lightning) - ❤️ Nonprofit Starter Pack: Volunteers for Salesforce Implementation --- 🔗 Integration Experience - ☁️ Cloud & Storage: AWS S3, Google Drive/Calendar, SharePoint - 💳 Finance & Payments: QuickBooks Desktop/Online, Authorize.net, Stripe, PayPal, Moneris - 📁 Content & Social Media: Box, Dropbox, Alfresco, Facebook, LinkedIn, Twitter - 🔌 3rd Party Tools: DocuSign, Conga Composer, Salesforce Einstein Analytics, ServiceNow, Remedy - 🌐 CMS & Web: WordPress, Joomla, PHP, Java, .NET, MySQL --- 🚀 Featured Projects & Achievements - ⚡ Migrated complex orgs from Salesforce Classic to Lightning Experience - 💡 Developed custom Lightning Web Components (LWC) for improved UI/UX - 📝 Built a Proposal Management System using Conga Composer & DocuSign - 📊 Implemented Custom Territory Management without enabling customizable forecasting - ☁️ Integrated Salesforce with AWS S3 for large/small file management - 🏆 Created and launched AppExchange Apps like Docufy, Cyber Alarm Antivirus, and snapi.io --- 🎯 Specialized Solutions - 💼 Salesforce CPQ: Apttus/Steelbrick implementation & customization - 📧 Pardot: Dynamic Lists, Drip Campaigns, Responsive Emails, Engagement Studio - 🛠️ Field Service Lightning: Full setup, customization, and optimization - 🌐 WordPress: Plugin/Theme Development, PSD to HTML, SEO Optimization (Yoast) - 📱 Mobile App Development: iOS/Android Native & Cross-platform apps integrated with Salesforce --- 💡 Why Choose Me? - Top Rated Plus with a proven track record of successful projects - 🔗 Expertise in complex integrations and multi-cloud setups - 💰 Focused on scalable, efficient, and cost-effective solutions - 💬 Strong commitment to quality, clear communication, and on-time delivery --- 💥 Let’s collaborate and take your Salesforce platform to the next level! 🚀
    Featured Skill Drools
    Salesforce1
    Salesforce Marketing Cloud
    Salesforce Wave Analytics
    Salesforce Lightning
    Salesforce App Development
    Salesforce CRM
    SOQL
    Data Migration
    API Integration
    Apex
    Salesforce Service Cloud
    Salesforce Sales Cloud
    Salesforce CPQ
    Salesforce
    Data Entry
  • $25 hourly

    • 4.9/5
    • (34 jobs)
    Hands on with server side solution using Spring, Hibernate, J2EE 7 and LAMP (PHP) stack for the last 15 years. - Proficient with building distributed fault-tolerant, soft-real time, microservices based system using vert.x and dropwizard. - Proficient with RDBMS like MySQL, PostgreSQL; NoSQL like Redis, Riak and JCR repositories like ModeShape. - Proficient with UI and mobile hybrid apps like ExtJS 4/5, GWT 2.7, JQuery UI, JQuery Mobile, ExtJs Touch, Angular, Ionic and Cordova - Hands on with "process" based and "case" based implementation using BPMN 2.0 and CMMN 1.0 using Camunda process engine. - IOT sensor based solutions using Arduino/Raspberry PI/BeagleBone and analytics using Esper Complex Event Processing engine for realtime analytics less > Proficient in Spring 2.x framework and AOP using AspectJ AOP framework. > Proficient in building agent based systems using OSGI specs (Equinox and Knopflerfish containers) > Dealt in indigenous and component-based J2EE based solutions for clients. > Proficient in using OSS tools like Ant, Log4j, Tomcat, Hibernate, MySQL etc. > Hands on different Operating systems including Linux, Solaris and Win2k. > SCRUM and UML certified
    Featured Skill Drools
    FHIR
    Database Design
    Business Process Model & Notation
    API Integration
    MySQL
    Microservice
    Node.js
    Java
    Docker
    ArangoDB
    Spring Boot
    PostgreSQL
  • $30 hourly

    • 4.9/5
    • (16 jobs)
    💎 6+ YEARS EXPERIENCE |🌟 5.0 STAR RATINGS | 💰5k+ EARNINGS |⌚ 15+ JOBS COMPLETED ✅𝐂𝐋𝐈𝐄𝐍𝐓 𝐓𝐄𝐒𝐓𝐈𝐌𝐎𝐍𝐈𝐀𝐋 ⭐⭐⭐⭐⭐ "Niravdas has a very good knowledge on the spring framework. He understood the requirements very quickly and was able to deliver on time. He also quickly reacts and takes complete ownership of the issues. Would highly recommend him" 🤝 Helping enterprise clients to maintain their Java web applications efficiently. 🏆6+ Years of experience in Java development using various technologies like Spring (IOC, MVC, Data-JPA), Spring Boot, and Hibernate. 🏭 𝐈𝐍𝐃𝐔𝐒𝐓𝐑𝐘 𝐄𝐗𝐏𝐄𝐑𝐈𝐄𝐍𝐂𝐄 ► Healthcare ► Finance ► E-Commerce ► Agriculture ► IT Services 💹 𝐁𝐄𝐍𝐄𝐅𝐈𝐓𝐒 ► Faster development cycle ► High-quality and Maintainable code ► Better collaboration with team ► Stronger security 👨‍💻𝐓𝐄𝐂𝐇𝐍𝐈𝐂𝐀𝐋 𝐄𝐗𝐏𝐄𝐑𝐓𝐈𝐒 💥 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬: Spring boot, Hibernate, Web Services, JPA, Spring MVC, Spring Rest, Spring data, etc 💥 𝐃𝐚𝐭𝐚𝐁𝐚𝐬𝐞: MySQL, Oracle, PostgreSQL 💥 𝐎𝐭𝐡𝐞𝐫 𝐓𝐨𝐨𝐥𝐬 & 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬: SVN, GIT, Jira, Postman, MVN, Gradle 💥 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 𝐌𝐨𝐝𝐮𝐥𝐞𝐬: Spring Security 💥 𝐓𝐞𝐬𝐭𝐢𝐧𝐠: JUnit 💥 Maps Integration: Google Map 💥 Third-party Integrations: Zendesk API, Bill.com API ⭕️𝐖𝐇𝐀𝐓 𝐌𝐘 𝐂𝐋𝐈𝐄𝐍𝐓 𝐒𝐀𝐘⭕️ ⭐⭐⭐⭐⭐ "Niravdas is a skilled and diligent worker. He has exceptional abilities and completed outstanding work ahead of schedule. Special thanks for adding the authorization logic as a bonus. Excellent work experience; I'll definitely return in the near future." ⭐⭐⭐⭐⭐ "He is very helpful, explains every step, and tries his best to solve my problem. Available all the time, fast reply, quick work. I appreciate his effort" ⭐⭐⭐⭐⭐ "Niravdas is a professional and an expert and helped me with my work deliverables" ✅If you want to say something more about yourself. Invite me OR 📩 message me, if you want me to help you by providing 💡 suggestions or services that can help you achieve your business 🎯 goals, 📞Thank you for your time and consideration.
    Featured Skill Drools
    Database Development
    SaaS Development
    Artificial Intelligence
    Software Debugging
    API Integration
    Business Logic Layer
    Hibernate
    RESTful API
    Apache Tomcat
    Amazon Web Services
    Microservice
    Spring Framework
    Spring Boot
    Docker
    Java
  • $30 hourly

    • 4.9/5
    • (19 jobs)
    Alfresco Expert | Full-stack Developer (Angular+SpringBoot) | 10+ yrs exp in ECM, BPMN, Java Highly experienced Alfresco Developer and Full-stack Developer with 10+ years of expertise in Enterprise Content Management (ECM), Business Process Management (BPMN), and Java development. Skilled in SpringBoot, Angular2+, and RESTful web services. *Key Expertise:* - Alfresco Content Service and Alfresco Process Service - SpringBoot, Spring MVC, Spring REST - Angular2+, Angular - Java, JavaScript - RESTful web services - Enterprise Content Management (ECM), Business Process Management (BPMN) - Full-stack development (Angular+SpringBoot) *Technical Skills:* - Alfresco ECM, BPMN - Java, Spring, Hibernate, Maven - SpringBoot, Spring MVC, Spring REST - Angular2+, Angular - RESTful web services - JavaScript, HTML/CSS - Database: MySQL, Oracle, MongoDB *What I Offer:* - Custom Alfresco development and integration - Full-stack development using Angular and SpringBoot - RESTful web service implementation - ECM and BPMN solutions - Scalable and efficient software development *Why Hire Me:* - 10+ years of experience in Alfresco development and Java - Proven track record of delivering successful projects - Strong technical expertise and problem-solving skills - Excellent communication and collaboration skills - Adaptable and flexible with changing project requirements
    Featured Skill Drools
    Java
    API Integration
    Angular
    Microservice
    Document Management System
    Servlet
    Alfresco Content Services
    Business Process Management
    Spring Boot
    Content Management
    Alfresco User
    RESTful API
  • $40 hourly

    • 5.0/5
    • (12 jobs)
    Information System Architect and Developer with 12+ years of experience and entrepreneur at Boteco Software House. During this time, I worked in the civil service, private corporation and as freelancer with dozens of clients. These experiences taught me not only what really works and what don't, but also what works better in each scenario. After I realized I wasn't quite bad working with business systems and scaling, I decided that I should pursue it as a career. Business systems shouldn't develop anything from scratch or work with low level source codes as it happens on academic, operational system and application industry. I normally help companies to avoid reinventing the wheel and use technological standards available. By using Information System methodology you will save a great deal of investment and reduce considerably the maintenance expenses of the system. Depending on the business phase, a different strategy will give you a different ROI. A business normally have 3 phases: validation, scaling and optimization. In each scenario, the Information System should be different. If you want to scale, you must be prepared to have a massive amount of data. So, the database is the most important part. A well designed relational database can outperform a naive one while avoid the hidden complexities of a non-relational database. The database design is just half technical. A good part of the job is to understand the business domain. Clear names and rules for the moving parts of your business avoid to create exceptions and require manual actions. This is the secret sauce to scale. If you're scaling, you already know what your users want. This is very good, because we can avoid trials and errors in the development process. When you plan, you can refine mock-ups and estimate the cost of each feature before to commit with the actual product. The infrastructure that scales the best is the one huge server. The communication is much faster inside the server than sending over the internet. Also the Web enables you to have a thick server while you have a thin client. Normally, you can avoid complex user interfaces and focus on what matters the most for the user: data and reports. Technical terms: Scrum, ERD, BPMN, DMN, Monolitic, DDD, SQL, PostgreSQL, XML, XSL, HTML, CSS, Bootstrap, W3C, Apache Camel, Apache Maven, Java, OpenJDK, Quarkus, KeyCloak, Apache HTTP, Linux, Debian, IONOS
    Featured Skill Drools
    Python
    Linux
    Database
    PostgreSQL Programming
    Bootstrap
    Cloud Architecture
    SQL
    Cache Management
    HTTP
    XSLT
    PostgreSQL
    Java
    jBPM
    Apache Camel
  • $20 hourly

    • 5.0/5
    • (2 jobs)
    Bowpi is a Lending as a Service (LaaS)* platform that offers an end-to-end platform for online lending. With this model you can configure the platform based on your needs and transform your lending operation.
    Featured Skill Drools
    MongoDB
    Java
    Spring Boot
  • $95 hourly

    • 5.0/5
    • (9 jobs)
    Full Stack Software Developer and Project Manager with 10 years of experience. Working on different migration projects of core banking and insurance systems. Hands on mentality with a focus on code quality, unit testing, design and customer satisfaction.
    Featured Skill Drools
    Oracle
    Angular
    OpenShift
    JavaScript
    Ionic Framework
    PostgreSQL
    Vaadin
    Jira
    Scrum
    SQL
    Spring Boot
    Java
    TypeScript
    Jenkins
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