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  4. (Current) Spring Boot Freelancers
  • $60 hourly

    • 5.0/5
    • (7 jobs)
    10+ years as Senior Java Engineer. Accenture, Credit Suisse & Unibet ex-employee. Skilled in Java 11, Spring Boot, REST APIs, Web Applications, Relational & NoSQL Databases, Scrum, AWS, Angular, Docker. I also worked as a consultant on complex projects for investment banks - Barclays Capital, Deutsche Bank and Citi. Great experience with: ⇨ Java stack: Java 11, Spring Boot, Spring Security, Spring Data, Spring MVC, Spring Cloud, JPA/Hibernate, Spring Hateoas ⇨ REST API: design and development, documentation (swagger) ⇨ Databases/ORMs: Oracle, MSSQL, MySQL, PostgreSQL ⇨ Messaging: JMS, ActiveMQ, Tibco, Kafka ⇨ NoSQL: MongoDB ⇨ AWS: EC2, S3, SQS, Route 53, IAM, Lambda ⇨ DevOps and Infrastructure: Bamboo, TeamCity, Linux, Docker, Docker Swarm, DockerHub, Ant, Apache Maven/Gradle, Jenkins, GitLab, GitLab CI, GitHub, BitBucket, Sentry.io, ELK, SonarQube, Git, SVN ⇨ Frontend: HTML/CSS, JavaScript, JQuery, Angular, npm, gulp ⇨ Other Java libraries: RestAssured, JUnit/Mockito/PowerMock, Lombok, FreeMarker/Thymeleaf/Velocity, DropWizard, Jackson/Gson
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    CI/CD
    Amazon Web Services
    Spring MVC
    Java Persistence API
    Hibernate
    API
    RESTful API
    SQL
    Docker
    Web Application
    AngularJS
    Java
    MySQL
    Spring Framework
  • $40 hourly

    • 5.0/5
    • (14 jobs)
    𝐖𝐞𝐥𝐜𝐨𝐦𝐞 𝐭𝐨 𝐌𝐲 𝐏𝐫𝐨𝐟𝐢𝐥𝐞! 𝐀𝐛𝐨𝐮𝐭 𝐌𝐞: I am a seasoned senior software engineer with a decade of hands-on experience in the software development industry. My forte lies in transforming concepts into robust software solutions that precisely align with customer requirements. Notably, some of the software products I've developed have been used by prestigious Fortune 500 companies, including Walmart and Mastercard. Throughout my career, I've honed my skills in developing applications that can seamlessly handle millions of users, mastering the art of scalability, robustness, and optimisation. ❇️ 𝗠𝘆 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: My technical skills spans a wide array of technologies and frameworks: 🔷 Languages: Java, Spring Boot, Node Js, React JS, Angular and Python 🔷 Frameworks: Spring Boot, Nest Js, Express Js, Django 🔷 Clouds : AWS, Azure and GCP. 🔷 Databases: Sql Server, Mysql, MongoDB, Postgres 🔷 Web Designing : Html5, CSS3, Bootstrap, Material UI. While these are my primary areas of expertise, I'm always eager to embrace fresh challenges. As a software developer, I firmly believe in the power of adaptability to tackle diverse problems. 💫 𝗠𝘆 𝗧𝗿𝗮𝗰𝗸 𝗥𝗲𝗰𝗼𝗿𝗱: You can witness some of my success stories through the reviews on my Upwork profile. I'm keen to schedule a call to explore how I can contribute to your vision. Thank you for considering me for your software development needs. 🔔 𝗜𝗳 𝘆𝗼𝘂 𝗵𝗮𝘃𝗲 𝗮𝗻𝘆 𝗾𝘂𝗲𝘀𝘁𝗶𝗼𝗻𝘀, 𝗳𝗲𝗲𝗹 𝗳𝗿𝗲𝗲 𝘁𝗼 𝗰𝗼𝗻𝘁𝗮𝗰𝘁 𝗺𝗲! 𝗟𝗲𝘁'𝘀 𝗰𝗼𝗹𝗹𝗮𝗯𝗼𝗿𝗮𝘁𝗲 𝗮𝗻𝗱 𝗯𝗿𝗶𝗻𝗴 𝘆𝗼𝘂𝗿 𝗶𝗱𝗲𝗮𝘀 𝘁𝗼 𝗹𝗶𝗳𝗲!
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Apache Kafka
    Spring Batch
    Spring Cloud
    MySQL
    PostgreSQL
    MongoDB
    Jenkins
    Microservice
    Docker
    Hibernate
    Unit Testing
    React
    Java
    Spring MVC
  • $65 hourly

    • 4.9/5
    • (40 jobs)
    I am TOP RATED, a strong, full-stack developer from the United States. In the past, I worked for the biggest companies such as Oracle, Accenture, First Data, Barclays Bank, GMAC, ING Direct. I have 20+ years of experience in web development and I highly specialize in - Java (J2EE, Spring, SpringBoot, JMS, Java Struts, Java Servlets, JSP, Hibernate, MyBatis, REST). - PHP (Laravel) - Javascript (React, Angular, JQuery, Vue.js) - HTML, CSS, Bootstrap - MySQL, Postgress, Oracle - AWS, Apache Tomcat I have built more than 200 systems and I am comfortable working with both existing and new projects. I helped hundreds of clients in their business and I am here to help you as well! 100% satisfaction guaranteed or your money back.
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Jakarta Messaging
    Web Service
    J2EE
    AngularJS
    HTML
    React
    Laravel
    PHP
    SQL
    Microservice
    Java Persistence API
    Spring MVC
    Spring Framework
    Java
  • $30 hourly

    • 4.7/5
    • (11 jobs)
    Mastery of software architecture and software development cycles. In-depth knowledge of the Java / JEE platform and the development of web applications. Mastery of JEE, Java, SOAP & REST web services, JPA, AngularJS, HTML5, Javascript, CSS 3, Bootstrap, Angular, Spring Boot. Mastery of Docker , Docker Swarm , Microsevice architecture. Mastery of Java play framework. Mastery of framework Spring. Good knowledge of continuous integration implementation (Maven, Svn, Git, Jenkins, Gitlab-CI). Good knowledge of TOMCAT, JBOSS. Good knowledge of database management systems: MySQL, ORACLE, POSTGRESQL. Quick learning ability of new languages and APIs. Experience in agile methodology. Ability to work independently and in a team.
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Oracle PLSQL
    Jakarta EE
    Microservice
    Angular
    API
    Apache Maven
    Continuous Integration
    Git
    Jenkins
    Java
    JetBrains IntelliJ IDEA
    Docker
    Linux
    PostgreSQL
  • $30 hourly

    • 5.0/5
    • (8 jobs)
    You have an idea for your web application, or looking for an expert to maintain your current app. But, you don't have the time/resources/expertise to make it happen. Luckily, instead of trying to complete those complex tasks in-house, you can hire an expert (like me) to support your idea from the conceptual phase to maintenance. Now, you might be asking why should you hire me: Following a quick description can give you a glimpse of my expertise ✅ Add value to your business through building user-friendly interfaces (UI / UX) and high-performant backend ✅ Focused, efficient, and reliable ✅ Critical to problem-solving, delivery time, and work-quality I've been working in the IT industry for more than 8 years, and I own Bachelor's Degree in Software Engineering. I have a good grip on the following frameworks ✅ Node ✅ React ✅ Spring ✅ Angular ✅ VUE I've developed apps and websites using the above-mentioned frameworks. I have hands-on experience in configuring, developing, migrating, and optimizing apps/websites, as well as working with several plugins and widgets. Design and Development Plan: Phase 1 ⭐️ Wireframes of the application: It will clarify the requirements, features, and flow of the application and admin panel. Phase 2 ⭐️ UI / UX of the application and Admin Panel: We will create a dummy look and feel of the application and admin panel to give us a better picture of the whole system. Phase 3 ⭐️ Requirement Specification Documentation: All the requirements, including business requirements, functional requirements, and non-functional requirements, will be written down in the Requirement Specification document and shared with the client for approval. Phase 4 ⭐️ Application and Admin panel Development After completing the above three phases, our developers will start working on the project's development according to the UI/UX Designs and requirement documentation. The client will be able to see the progress of the application too per milestone. We will complete the development of web applications and the admin panel in milestones. Milestones will be delivered to the client on an agreed date and time (This will be agreed upon while signing the contract). Phase 5 (Optional) ⭐️ Application Maintenance Usually, after development clients ask for maintenance too to add new modules or upgrade existing ones. Love to work with me? Click on the little "Hire me" button and see your idea becoming reality!
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    MEAN Stack
    MERN Stack
    NestJS
    Spring Cloud
    Full-Stack Development
    Web Development
    Web Application
    Nuxt.js
    Next.js
    React
    Angular
    Node.js
    Vue.js
    Java
  • $23 hourly

    • 5.0/5
    • (30 jobs)
    I am an innovative software engineer with experience in the full software development lifecycle. I have a proven track record of delivering next-generation applications and customizable solutions on time and within budget. I am known for my excellent troubleshooting skills, ability to analyze code, and ability to engineer well-researched, cost-effective, and responsive solutions. I am currently learning about cloud platforms like AWS and GCP with hands-on experience. I have learned to design and deploy applications for AWS for the past year, and I have migrated those applications without outages to Google Cloud. I am passionate about cloud computing and I am eager to learn more about how to use cloud platforms to deliver innovative solutions. I am a highly motivated and results-oriented individual with a strong work ethic. I am also a team player and I am always willing to help others. I am confident that I can make a significant contribution to your team and help you achieve your goals. Expertise Languages Java, C#, JavaScript, TypeScript Frameworks Spring Boot, Angular 2 or above, Node & ExpressJS, JavaFx, Android Native, .NET (WPF) Databases MySQL, MongoDB
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Amazon RDS
    Amazon Elastic Beanstalk
    Google App Engine
    Google Cloud Platform
    MySQL Programming
    API
    Database Design
    RESTful Architecture
    MySQL
    HTML5
    JavaScript
    Java
    Angular
    Microservice
  • $40 hourly

    • 5.0/5
    • (58 jobs)
    Hello! I'm Tahir Shakir, a passionate Full Stack Developer with a focus on both the MEAN (MongoDB, Express.js, Angular, Node.js) and MERN (MongoDB, Express.js, React, Node.js) stacks, with a growing love for DevOps. With 5+ years of hands-on experience, I thrive on turning complex ideas into user-friendly, high-performance web applications. My technical toolbox includes proficiency in front-end and back-end development, as well as a deep understanding of database management. I take pride in my ability to create dynamic and responsive interfaces while ensuring robust server-side functionality. Tech: Front end: Angular.JS, NgRx, React.JS, Next.JS, Redux Back end: NodeJS, ExpressJS, NestJS, GraphQL, REST, Lambda, Cloud functions, Firebase Testing: Jest, Jasmine Database: MySQL, MSSQL, Oracle, MongoDB, SQLite, Firestore API Integrations: Stripe, Plaid, Paypal, Google Maps, ChatGPT, OpenAI DevOps: AWS S3, EC2, Elastic Beanstalk, Route 53, GCP, RDB, Azure, Docker, CI-CD pipelines Version control: GitHub, Bitbucket, Gitlab PM: Jira, Trello, Monday Feel free to send me a quick message here on Upwork so we can chat more about yourself and the project. I’m also happy to answer any questions you might have about me and my services. Client feedback: "I have never been so impressed by a developer. Master of structure, professional documentation, and as quick as a panther !! Most definitely my go-to for Firebase and backend." ~ Ramzi Fawakhiri, CTO, Arrive "It is a pleasure to work with Tahir. He is a very proficient developer and knows his tech stack. He works very responsibly, communicates transparently and has a great commitment to the project. Tahir is able to help structure the project and recognize priorities and therefore works very efficiently. We have no hesitation working with him long term." ~ Marius Magiera, CEO, 2PI IT
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    AWS Development
    Google Cloud Platform
    Front-End Development
    Firebase
    Angular Material
    RESTful API
    Angular 6
    GraphQL
    TypeScript
    Web Application
    Angular
    React
    Firebase Cloud Firestore
    JavaScript
    Node.js
  • $35 hourly

    • 4.8/5
    • (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
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Business Process Modeling
    Project Workflows
    Process Modeling
    Bonita
    Business Process Model & Notation
    jBPM
    Business Process Management
    SQL
    Hibernate
    Java EE
  • $30 hourly

    • 5.0/5
    • (4 jobs)
    I am a java developer with the experience of API Integration and GUI based software. I connected different e-commerce platforms like Amazon, eBay, Bigcommerce, Shopify, Walmart and many more. eCommerce : - API Integration with Amazon, BigCommerce, eBay, Etsy, Shopify, Walmart. - Shipping software like shipstation, shipbob. - ShipStation custom store Integration. - FedEx, UPS - Finale Inventory API - QuickBook API - Twillo Messaging Service - Google Sheet integration - ZOHO Books, ZOHO Inventory. - Google Merchant - Paypal - Repricer Skills: - Core java, J2EE, Spring Boot, Spring security, Servlet, Struts2 - GUI (Java Swing, JavaFX) - JDBC, Hibernate, JPA. - Web services, Restful API. - HTML, JSP, Thymeleaf. - CSS, JavaScript, JQuery. - MYSQL, Oracle, MS SQL, PostgreSQL. - Subversion Tool : github, bitbucket/gitlab. - Task management JIRA, Trello - Maven, Gradle - Tools and IDEs (Netbeans, Eclipse, Intellij IDEA)
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    API
    Amazon
    Hibernate
    eBay
    Google Shopping
    RESTful API
    J2EE
    Shopify
    MySQL
    MongoDB
    BigCommerce
    Java
  • $30 hourly

    • 5.0/5
    • (5 jobs)
    Results-oriented java software engineer with 8+ years experience developing, testing, and maintaining software applications. Background includes strong knowledge of back-end development as well as extensive experience of front-end development. Well organized, self-motivated and hard worker.
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Python
    Linux
    Spring MVC
    Hibernate
    PostgreSQL Programming
    Jenkins
    Angular 6
    SQL
    Java
  • $22 hourly

    • 5.0/5
    • (8 jobs)
    Java backend developer with strong expertise in: Backend: -Java 8+, JavaEE, JavaSE, Socket -Spring (Spring boot, Spring JPA, Spring MVC, Spring data, Spring security and other Spring modules) -Hibernate, JOOQ, JDBC -SQL (MySQL, MS SQL, PostgreSQL, SQLite) -NoSQL (MongoDB, Elastic, Redis, Firebase, Influx) -AWS (S3) -Migration (Liquibase, Flyway) -Thymeleaf -JUnit Frontend: -JSP, HTML, XML Others: -Git -Docker -Postman -IntelliJ Idea I'm very interested in solving various difficult tasks and am ready to deal with the most projects related to my stack, so do not hesitate to contact me!
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    IntelliJ
    Jakarta Server Pages
    JDBC
    MySQL
    SQL
    Hibernate
    Spring MVC
    Java EE
    Java
  • $56 hourly

    • 5.0/5
    • (17 jobs)
    I am working as Sr. Java Back-end Developer along with ReactJS experience with front-end. If you are finding someone passionate about reusable, clean code, secure applications and agile methodology follower, then you are viewing right profile!. I have 8+ years of experience in software industry with Java based technologies. I have been involved across all phases of project development life-cycle. I am expert at database design or create base architecture for J2EE web applications. I have hands on experience in the following areas: ➤ Core Java ➤ JavaEE ➤ Alfresco Development (v4.2+) ➤ Spring MVC, ZK (ZKoss) ➤ Spring Security ➤ Spring DATA/JPA/Hibernate ➤ MySQL (database design and complex query expert) ➤ JSP/JSTL ➤ Jasper-Reports/Dynamic Jasper Reports ➤ Twitter bootstrap ➤ Lucene/Solr ➤ Indexing/Searching ➤ Tomcat/JBOSS ➤ GIT/SVN/CVS/P4V(Perforce) ➤ Struts 2.0 ➤ JIRA/Agile Looking forward
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Docker
    Web Service
    Spring Security
    AWS Lambda
    Amazon DynamoDB
    Jakarta Server Pages
    RESTful API
    REST
    Amazon Web Services
    MySQL Programming
    React
    JavaScript
    Spring Framework
    Java
  • $30 hourly

    • 5.0/5
    • (41 jobs)
    Spring, Spring Boot, Spring Cloud, Spring Security ✅ Hibernate, JPA, JDBC ✅ PostgreSQL, Oracle, MySql, MongoDB, Flyway, Liquibase, Redis, Athena, Hazelcast ✅ REST API, SOAP, gRPC, GraphQL ✅ Kafka, RabbitMQ, ActiveMQ, Artemis, AWS SQS ✅ Keycloak, Apache Camel ✅ Microservices architecture: API Gateway, Service discovery (kubernetes), configuration, etc. ✅AWS Services ✅Kubernetes, Docker ✅Elastic Search, Apache Solr ✅Angular, ReactJS ✅Kotlin ✅Apache POI I am a Java professional with 9 years of experience. I have strong understanding and knowledge of the object-oriented approach, software engineering principles, and concepts. I have an incredible attention to detail and perseverance in getting the job done, and done it well.
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Elasticsearch
    Kotlin
    Docker
    Apache ActiveMQ
    Apache Solr
    Apache Kafka
    Angular
    Spring Security
    Spring Framework
    Java
    Hibernate
  • $30 hourly

    • 4.7/5
    • (45 jobs)
    A motivated and skilled software developer with more than five years of professional experience. Back-end technologies: - Spring-framework, spring-security - JPA/Hibernate + Spring-Data - REST, GraphQL, and WebServices (Spring-Boot) - Apache Kafka, Camel - SQL, MySQL, PostgreSQL, MariaDB, MongoDB - Maven/Gradle/Ant Front-end technologies: - Spring-MVC, Struts - template engines: Thymeleaf, JSP/JSTL, GSP, Freemarker, Jtwig, Velocity - JQuery and Bootstrap - HTML5, CSS3, JavaScript - Angular, React SDLC - Agile and Scrum programming methodology - TDD using JUnit, Mockito, Karma (for UI) - Eclipse, STS and Intellij IDEA - Git, SVN, and CVS code repositories - Maven, Ant, and Gradle build tools - Jenkins and Bamboo CI servers - Docker, Kubernetes - Bash scripting, Server Administration Cloud - Amazon cloud deployment using EC2 - Amazon file sharing S3 - Amazon cloud database using RDS - Amazon based messaging (SNS and SQS) - Google cloud platform - Heroku based could deployment - VPS setup and administration
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Jira
    Code Review
    Agile Project Management
    Hibernate
    Java Persistence API
    Microservice
    JUnit
    Thymeleaf
    REST
    MongoDB
    Bash Programming
    MySQL
    Spring MVC
    Java
  • $18 hourly

    • 4.9/5
    • (131 jobs)
    I am a Full-stack developer / lead, or solution architect with 10+ years of experience and have the expertise to complete many projects . I have very good experience working on full applications that require scalable architecture to design and develop, having worked on all stages of development like design, development to deployment with proven experiences in development. My passion and inclination toward the programming and coding, lead me to Upwork, a platform where I can put my knowledge, experience, passion and geekiness together and define and set my own limits. My expertise:- ✔️ Front-end Development JavaScript / React / React-Native / Redux / Angular / Ionic / Vue ✔️ Back-end Development Python / Node / Express / Java Spring boot / REST API / Golang / Laravel /Nest.js / Next.js ✔️ Databases PostgreSQL / MySQL / MongoDB / DynamoDB ✔️ Data Engineering Data Pipelines / ETL / Hive / Spack / Kafka / Drill ✔️ AWS Cloud Services Amplify / Lambda / EC2 / CloudFront / EC2 / S3 Bucket / Microservices ✔️ Responsibilities and Contribution: • Involved in various stages of software development life cycle including - development, testing, and implementation. • Analyzing and validating the functional Requirements. • Suggesting a better approach and preparing detailed documents and estimating the time required for the delivery system periodically. • Configuration and Customization of the Application as per the given Business requirement. • Used the sandbox for testing and migrated the code to the deployment instance thereafter. • Analysis of requirements Involved in the development of modules. • Discussing on requirements, feasibility of the changes, and impact on the current functionality onsite. I have excellent time management skills to define priorities and implement activities tailored to meet deadlines. My aptitude & creative problem solving skills help applying innovative solutions to complex issues. I am always eager to offer the value addition to customers by providing them with suggestions about the project.
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    React
    React Native
    Apache Spark
    Angular 10
    Apache Kafka
    AWS Lambda
    Golang
    Apache Hive
    NodeJS Framework
    Vue.js
    Amazon EC2
    Python
    Java
  • $30 hourly

    • 5.0/5
    • (3 jobs)
    - 10+ years of professional experience in the software engineering field. - 4+ years of experience managing a team of up to 10 people. - Backend development experience: REST API, single sign-on (SSO) integration, enterprise system integration, eCommerce, stream data processing, and FinTech. - Improvement is my passion: codebases, processes, culture, etc. Always striving to raise the bar. - Self-driven, natural leader. - Some of my favorite technologies and tools these days: Linux, Clojure, Go, Java, Git, Docker, and PostgreSQL.
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Elasticsearch
    Apache Kafka
    OAuth
    Google Dataflow
    Web Scraping
    Stream Processing Framework
    ClojureScript
    Docker
    Jenkins
    RESTful API
    Clojure
    Ansible
    Redis
    PostgreSQL
  • $50 hourly

    • 5.0/5
    • (32 jobs)
    An agile and ambitious software engineer with a strong technical background who possesses self-discipline, hardworking, quick learning, good team spirit, and honesty. 11+ years of experience in software development for enterprise-level applications using arrays of technologies. ➢ Strong Programming skills, in designing and implementation of multi-tier applications using Spring Boot, Spring MVC, Java-J2EE, ASP.Net MVC, .Net Core, Node, Express, Struts, JSF, CDI, Spring Data JPA, JPA, Hibernate, Spring Rest, Spring Data JPA, Spring Security, Kafka, liquibase etc. ➢ Efficient in working with Dockerfile, Docker-Compose & Docker Containers. ➢ Extensive experience in working with JavaScript/TypeScript languages, frameworks, libraries, and technologies such as React JS/ Angular. ➢ Extensive experience in working with CSS3, HTML5, SCSS, and their frameworks such as Bootstrap, Material UI, etc. ➢ Strong experience in all the phases of software development life cycle including requirements gathering, analysis, design, implementation, deployment and support. Technologies I work on: J2EE - Spring - Spring - Boot - Spring- Security - Maven/Gradle - Apache Kafka - Redis - JMS/Rabbit MQ - Spring Data JPA - Hibernate JavaScript : - ES6 - jQuery - Angular - React JS - Node - Express - TypeOrm/ Sequilize Python: - Flask - Django Testing: - Rest Assured - Junit - TestNG - Mockito Reporting : - Jasper Report. DB: - Mysql - MSSQL - PostgreSQL - Oracle - MongoDB
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Spring MVC
    Node.js
    J2EE
    React
    Microservice
    API Development
    SQL
    Java
    TypeScript
    JHipster
    Spring Framework
    Python
    API Integration
  • $30 hourly

    • 4.8/5
    • (34 jobs)
    🏆 TOP RATED PLUS Java/Spring & ReactJS Expert 🏆 💪 1,600+ Hours of Work Done in Upwork 💪 30+ Projects Delivered 🚀⭐️Proven Expertise in :⭐️🚀 ✅ JAVA EE Development ✅ Spring / Spring Boot ✅ Spring Hibernate ✅ SQL ✅MySQL ✅PostgreSQL ✅OracleDB ✅MongoDB ✅ ReactJS Why should you work with me? I guarantee: ➤ Perform Your Project in Latest Agile Based Environment ➤ Dedicated Point of Contact ➤ Fast and Professional Work ➤ Attention to Details ➤ Meeting Deadlines Thank you for visiting my profile, I'm looking forward to working with you!
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    AWS Lambda
    Web Development
    MySQL
    Spring Framework
    JavaScript
    React
    Java
    Hibernate
    Bootstrap
    PostgreSQL
  • $150 hourly

    • 5.0/5
    • (128 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.
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Apache Spark
    Database
    WordPress
    Cloud Computing
    Spring Framework
    Data Engineering
    NoSQL Database
    React
    Serverless Stack
    Solution Architecture Consultation
    DevOps
    Microservice
    AWS Fargate
    AWS CloudFormation
    Java
    CI/CD
    Amazon ECS
    Containerization
  • $35 hourly

    • 5.0/5
    • (38 jobs)
    I have 8+ Years of experience as a Full - Stack Java/spring Developer with diversified exposure in analysis, design, development and implementation of web-based applications. Extensive knowledge on Java SE including Collection, Threading and Core Java. Good experience on Java EE technologies such as Servlet, JDBC, JSP, JSTL. Strong programming skills in designing and implementation of multi-tier applications using web-based technologies like Spring MVC and Spring Boot. Good Knowledge and worked on Amazon Web Service (AWS) EC2,S3 etc.. and Continuous Integration. Excellent knowledge on Spring Core such as Dependency Injection, Annotations and XML based Configurations. Extensively worked on Spring JDBC,Batch,Data Spring Hibernate ORM and JPA Expert in e-commerce platform for automation like amazon, Etsy, Walmart, eBay, big-commerce. API integration and automation sync tool ETL. Proficient at designing dynamic web applications using HTML5, CSS3, JavaScript, jQuery, AJAX, JSON with responsive web applications using Bootstrap.
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Amazon
    API Development
    Application Integration Software
    Automation
    Java
    Amazon MWS
    Web Development
    Spring Framework
    DevOps
    Dashboard
    API Integration
    Technical Support
    Amazon Web Services
  • $45 hourly

    • 4.9/5
    • (14 jobs)
    Professional Software Engineer and Cloud Solutions Architect I have 10+ years of experience in building multi-tier applications using cutting edge technologies. I have worked with many private and government organizations handling complex projects with strict deadlines successfully. Following are the technologies I work on: Frontend: React JS, Redux, Vue, Vuex, Angular, HTML, CSS, Javascript (ES6+), JQuery Backend: Python, Django, Flask, Firebase, Node JS, Java, Spring Boot, Rest API, GraphQL Mobile: React Native, Flutter, Android, IOS, Hybrid, Cross Platform Cloud: AWS, GCP, AZURE Databases: MySQL, MongoDb, MariaDB, PostgreSQL, Redis
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    JavaScript
    Google Cloud Platform
    GraphQL
    iOS
    Android
    Angular
    React Native
    Amazon Web Services
    React
    Django
    Node.js
    Java
    Python
    Machine Learning
  • $35 hourly

    • 5.0/5
    • (3 jobs)
    I have been developing complex software systems from 2009, working on over 30 large projects (from developer to system architect, mostly enterprise Web applications and AI). I hold a Ph.D. in Computer Science and have published a number of scientific papers, most of them on Artificial Intelligence.
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    React
    Angular
    Artificial Intelligence
    Machine Learning
    Distance Education
    Educational Technology
    Curriculum Development
    Web Development
    JavaScript
    Python
    Java
  • $35 hourly

    • 5.0/5
    • (3 jobs)
    Senior Software Engineer having 8+ years of experience with the below skills • 8 years of experience in the design/development of Java/J2EE-based systems and microservice systems. • Strong working knowledge in MVC Architecture and Frameworks – Spring and Spring Boot Framework. • 8+ Years experience in designing and developing Microservices architecture. • 8+ Years experience in Amazon Web Services • 8+ Years experience in Restful web services. • 8+ Years experience in MS-SQL, MONGO, and MYSQL Databases. • Having good working knowledge in Database related Performance engineering activities • 8+ Years experience in Docker Container and Kubernetes. • 8+ Years experience in Kafka Queuing system • Having experience with Designing, Developing, Configuring, and Testing Application environments using Java (Java, Servlets, JSP, JSTL, Java Beans, JDBC, HIBERNATE, Database Mapping, Log4j, HTML).
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Java
    API
    Apache Kafka
    Kotlin
    JavaScript
    DevOps
    Microservice
    AWS Application
    PostgreSQL
    Spring Framework
    RESTful API
    Docker
    Docker Compose
    Kubernetes
  • $40 hourly

    • 4.9/5
    • (29 jobs)
    🚀 Full Stack Developer | Crafting Exceptional Web Applications | 6+ Years of Expertise 🚀 Are you ready to embark on an exciting journey to transform your web applications into cutting-edge wonders? Look no further! I am a seasoned Full Stack software developer with over 6 years of experience crafting exceptional web applications that leave a lasting impact. My toolkit is brimming with an impressive array of technologies, including Spring Boot, Node.js, AWS, React, Angular, Vue.js, Python, and Django. With this diverse skill set, I have honed the art of building scalable and robust applications that cater to both your clients' desires and your end-users' delight. Backed by my prowess in Spring Boot, I can architect highly efficient and top-notch backend systems that set new standards for performance. Embracing the power of Node.js, I wield its capabilities to craft impeccable server-side applications that never fail to impress. And, rest assured, my AWS expertise ensures seamless deployment and management of cloud-based solutions that promise unrivaled reliability. When it comes to front-end development, I'm a maestro of creating mesmerizing user interfaces using React, Angular, and Vue.js. But wait, the allure doesn't end there! My proficiency in Python and Django empowers me to weave captivating and interactive interfaces that leave your users spellbound. Passionate about delivering software solutions that transcend the ordinary, my mission is to provide your clients with nothing short of excellence, elevating your web applications to the pinnacle of success. Together, we'll bring your ideas to life, with a touch of magic and a dash of innovation. So, if you're ready to take your web applications on an extraordinary adventure, let's join forces! I'm thrilled to be your guide on this thrilling journey to create modern, scalable, and dazzling web applications that captivate the world. Let's build wonders together! 🌟
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    J2EE
    RESTful API
    HTML
    MySQL
    Hibernate
    Microservice
    PostgreSQL
    CSS
    React
    RESTful Architecture
    Jenkins
    Node.js
    Docker
    Java
  • $35 hourly

    • 5.0/5
    • (24 jobs)
    I have 7 years experience of backend development. During this time I worked in many IT companies and projects. I develop enterprise applications on Java. My technology stack includes: SpringBoot; Spring Security, JWT, OAuth 2, Keycloak; Spring Data JPA, Hibernate; Docker, Kubernetes; REST API development; AWS infrastructure; Unit tests; Maven; Jenkins; Git, Bitbucket; Apache Kafka; MySQL, PostgreSQL, MongoDB. I usually work using Jira, Confluence, Slack, IntelliJ IDEA. I prefer to work in team, so Agile and Scrum are my best friends. Also I can create websites and landing pages using different CMS. And I'm an expert in WordPress. I know PHP, MySQL, JavaScript, jQuery, HTML5, CSS3, Smarty, and I have other skills. I am an adherent of the purity code. I am a prudent and meticulous person. You can watch my sources on Bitbucket: bitbucket.org/gribozi
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Apache Kafka
    RESTful API
    OAuth
    Kubernetes
    Docker
    Apache Maven
    PostgreSQL
    Java
    Git
    WordPress
    JUnit
    CSS
    HTML
    Core Java
  • $55 hourly

    • 5.0/5
    • (6 jobs)
    I am a senior Java/SpringBoot developer, working in complex enterprise software. Most used stack: SpringBoot, JEE, JSF, Angular, Primefaces, Icefaces, Hibernate, Maven, JBoss, Git, Jira, Openshift, AWS Following: Java best practices, SOLID clean code, TDD Certified Professional for Software Architecture, iSAQB CPSA Certification Oracle Certified Associate, Java SE 8 Programmer Professional Scrum Master I (PSM I) Bachelor and Master Degree in IT and Business, many courses taken in SW Development and Best Practices. Passionate about Bioinformatics and AI. My hobby is writing, creative or professional writing. I have published a book and won multiple international awards in short stories competitions. I am also an author at Baeldung, writing Java/Spring articles.
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Software Architecture & Design
    JUnit
    API
    Git
    REST
    Spring MVC
    JavaFX
    Oracle PLSQL
    SQL
    Java Persistence API
    Apache Maven
    Hibernate
    Java EE
    Spring Framework
  • $23 hourly

    • 5.0/5
    • (5 jobs)
    💪 5000+ HOURS WORKED | ✔️ $100K+ Earned | ✔️ 5★ Review ✔️ Worked with big Fintech Firm ✔️My Professionalism = Your Competitive Advantage! 📌 Reasons you should hire me: ✔️ Always get a timely response to any message ✔️ Receive frequent updates without having to continuously ask ✔️ I will commit the hours needed to get the tasks done quickly ✔️ I am trustworthy and down-to-earth ✔️ I understand the human element and focus as much on "EQ" as "IQ" ✔️ I understand business and that you need "value-add". I will add value immediately. Java/Kotlin/Spring/Dropwizard/AWS/SQL Database/NoSQL Database, a software professional with more than 5 years of experience in the IT industry. I am a results-driven person with Excellent analytical & problem-solving skills and have very good interpersonal and communication skills. My skills include: ✅ Advanced Java ✅ Kotlin for JVM ✅ Spring Boot, Spring MVC ✅ Dropwizard framework ✅ ORM - Hibernate, EclipseLink ✅ RESTful APIs ✅ SOAP ✅ Concurrent Programming ✅ Microservices ✅ MySQL, Oracle, PostgreSQL, MongoDB, Dynamodb Databases ✅ Database design ✅ Messaging brokers - RabbitMQ, Kafka ✅ Reporting - Jaspersoft, Pentaho report ✅ CSV, XML, JSON Data processing ✅ Amazon Cloud Services - AWS S3, SQS, SNS, EBS, EC2, RDS, Lamda, Step Functions, API Gateway ✅ Elastic Search ✅ ELK Stack - Elastic Search, Logstash, Kibana ✅ Splunk querying, logging ✅ Data structures, Algorithms Have a project to discuss? Lets connect !!!
    vsuc_fltilesrefresh_TrophyIcon Spring Boot
    Docker
    Redis
    JUnit
    Cucumber
    Dropwizard
    Kotlin
    MySQL
    MongoDB
    SQL
    REST
    Spring Framework
    Amazon Web Services
    J2EE
    Java
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