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Spring Boot - REST - MongoDB (and PostgreSQL/Liquibase)

$15-25 USD / hour

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已发布大约 1 年前

$15-25 USD / hour

There is an existing back end codebase, we need to finish all missing requirements in 3 weeks, and 1 week for testing and bug fixes. There are two parallel tasks: 1- To fulfill the missing requirements, using MongoDB. This involves cooperation with the front-end team (a separate existing team). 2- To migrate existing (and new) queries from MongoDB to PostgreSQL using Liquibase. Multiple hires would happen, and each contract would be evaluated twice: one after two days, another one after one week. We would start by one member for each task, and add more whenever needed. The current OpenAPI (Swagger) is in [login to view URL] - Latest versions are used (except using Java 18 because of Heroku). - Code first API - The application is automatically deployed, with updated OpenAPI, to be used by the front-end team. Regarding the migration to PostgreSQL, we need to gradually add corresponding endpoints, so that we have duplication, till we remove the MongoDB ones. Hibernate would be used to create the schema, and Liquibase would be used to create the 'update' files. Initial entities exist. Please don't submit if you aren't experienced with those technologies.
项目 ID: 36299950

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远程项目
活跃1 年前

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53威客以平均价$22 USD/小时来参与此工作竞价
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Hello, We have a team of Skilled Java/J2EE professionals. Our Expertise in Java / J2EE technologies: - Desktop Applications: Swing, Eclipse Rich Client Platform, AWT, SWT, RMI - Frameworks: Spring, Spring MVC, Spring Boot, Microservices, Spring Security, Spring Social, Struts, Hibernate, JPA, Lucerne, Quartz, Ant, jUnit, DbUnit, Mybatis - Web Technology: JSP, JSTL, JSF, JQuery, Ajax, JavaScript, DWR, FCK Editor, Extjs, Angular JS - Application Servers: JBoss, WebLogic, WebSphere, Apache Tomcat, Glassfish - Databases: MySQL, Oracle, PostgreSQL - Web Services: SOAP, WSDL, RESTFUL Web Services, Apache Axis - IDE: Eclipse, Net Beans, Web Ratio (Model Based Application Development IDE) , Spring Tool Suite - Payment Gateway: PayPal Integration [Experienced in integrating other payment gateways too] - Project Management: SDLC, AGILE We are available from Monday to Friday, 9 hours a day. Our time zone is GMT+5.30. Please initiate chat to check our understandings and queries. You will be able to communicate directly with the expert working on your project. We look forward to have long term engagement on the basis of quality of our work evinced in this project. Thanks
$20 USD 在40天之内
4.9 (346条评论)
8.5
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用户头像
Hi, How are you? I just saw your job posting and I felt that I can help you with this job considering the experience I have with Hibernate, Spring Boot, Java, RESTful API and NoSQL Couch & Mongo. Please check my portfolio: https://www.freelancer.com/u/AITSoft Regards, Shamshad
$25 USD 在27天之内
4.9 (42条评论)
6.6
6.6
用户头像
I am confident that I have the necessary experience and technical expertise to complete the tasks within the required timeline. I am familiar with Spring Boot, REST, MongoDB, and PostgreSQL. I understand that the project involves cooperation with the front-end team, as well as fulfilling the missing requirements and migrating existing queries from MongoDB to PostgreSQL. I am comfortable with carrying out these tasks and can ensure that the application will be automatically deployed with updated OpenAPI. I look forward to contributing to the success of this project. Thank You
$15 USD 在46天之内
4.8 (14条评论)
6.7
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用户头像
Hi sir I am interested to work with you. I can provide you with professional web design services. I can design for you according to your requirements. I will give you unlimited revision until you will not satisfy for your design.I will deliver this according to your time frame after your award. I can assure you several things. * I have expertise in Twitter Bootstrap, Angularjs, HTML5/CSS3, Php, java se,j2ee.... * I have a great web development sense. * Well organized and clean code easy to understand. * Validate according to w3c standards. * I can start it immediately. * Compatible with all modern browsers and mobile devices. Looking forward to hearing from you soon. Thanks
$15 USD 在40天之内
5.0 (115条评论)
6.2
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Hi Sir, I have huge experience in Java/J2EE development and i am expert in Spring Boot REST API, MongoDB, PostgreSQL and Liquibase. As i reviewed your job description and it's looking good to me and i would like to discuss further with you. Please start the chat to discuss further. Thanks,
$18.89 USD 在40天之内
4.4 (91条评论)
6.4
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Hello, I am a senior Full-Stack Java developer for the past 8 years, and I have coped with several projects, both small and more complex ones. I have a very strong academic background in algorithms and complexity, information systems and in software development. I have an M.Sc. in Computer Science and I work as a software engineer in my day-to-day job. I have very strong analytical and researching skills, as I have a research background (I worked in a technological research center for more than 2 years). I believe I can deliver your project in a reasonable time, after setting the exact requirements. Looking forward to working with you! Best regards, Michalis
$25 USD 在20天之内
4.9 (25条评论)
5.6
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Hello , I am offering my services on short notice. Relevant Skills and Experience Please consider me and give me a chance to impress you by my quality services thanks
$25 USD 在40天之内
4.9 (33条评论)
5.2
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用户头像
MASTERS IN SOFTWARE DEVELOPMENT AND ARCHITECTURE. Hi there! I have carefully read the project description and I would like to take part in this project. I will work according to your requirement to provide the best quality and customer satisfaction. I hope you will benefit from my services I can assurance that I will live up to your expectations. Best regards. Thank you.
$20 USD 在40天之内
4.9 (15条评论)
4.8
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用户头像
Hi There, As an enthusiastic developer, I have deep knowledge of Java. J2EE, Spring MVC, Spring Web Security, SpringBoot, Docker, JPA, Hibernate, Apache Maven and have vast experience in HTML, CSS, JavaSctipt, ReactJs, AngularJs and jQuery. I have good experience with PostgreSQL, MySQL, MongoDB, Oracle and I have knowledge of data structures, Design patterns, OOP concept. Along with your requirements, I will provide you clean optimized, clean source code with free bug fixing and maintenance. I can start work on project immediately and dedicate more than 40hrs/wk. Hope more discuss with you. Thanks
$25 USD 在40天之内
4.7 (7条评论)
5.2
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用户头像
Hi there, I'm a software engineer developer with more than 7 years experience. I have been using Java8+ and spring family (ioc/boot/cloud/security) in many projects. I have been designing RESTfull APIs for many projects (swagger/hateoas ...) and using oauth2 to secure my endpoints. For database migration, i have used Flyway and Liquibase. Furthermore, I'll ensure you high code quality respecting SOLID, design patterns ... and other practices. Besides, I have also a strong knowledge about CI/CD and AWS services. I'm also exprienced in AngulaJS/Angular2+ Java SE certified LFCS Certified CKA Certified Please do not hesitate to contact me for more details.
$28 USD 在40天之内
5.0 (15条评论)
3.8
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Hello. Hope are you doing well. I'm a software engineer with a total experience of over 15 years I’ve taken part in numerous projects in different positions for a wide range of industries - e-commerce, LMS, social network integration, medical care and insurance. I prefer programming in JAVA with the latest version 18 (and I have extensive Java experience for 15 years). Moreover, I have experience in PHP for 3 years. I have strong skills in J2SE/J2EE, in the JAVA ecosystem including Spring/SpringBoot, struts, Hibernate, iBatis/myBatis and JSP/JSF. Additionally, I have expertise with SQL/NoSQL DBs (mySQL, Postgres, DB2, Oracle, MSSQL/Mongo), jQuery, JMS including ActiveMQ/Rabbit MQ/WebsphereMQ, and CI/CD tools like Jenkins, REST API. Have a good knowledge with CRM integration using CRM API (Netsuite, MSCRM, Shopify, QBOnline etc.) I have a strong skill work with international team with different roles - from developer to the team/tech lead. Hope my skills is enough to interest you. I can provide my CV if it's required and pass technical interview. BR, Mikalai.
$20 USD 在40天之内
5.0 (3条评论)
3.7
3.7
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Hi, I have been developing Java EE application for the last 7 years. I have work experience on this framework Spring ,Hibernate including Spring Boot,Spring Data ,Spring Security,Spring ORM,Spring Cloud,Microservices modules. I have build multiple end to End api's.I have experience on Spring Boot and can do all the above requirement. Please let me know if you want to discuss further. I have experience developing End To End Application For Giants in the market so hopefully will be able to work on requirement. Thanks and Regards, Sambuddha Chaudhuri
$20 USD 在40天之内
4.8 (9条评论)
4.0
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用户头像
Hi there, I am a full stack developer with 4+ years of experience in both front-end and back-end development. I have read your Spring Boot - REST - MongoDB (and PostgreSQL/Liquibase) description very carefully and would like to have a detailed chat about this project as to resolve some queries I have regarding this project that needs to be cleared to get things started. We always look for a long term relationship. It would be my pleasure to build long term relationship with you. All my skills are related to this particular project. Looking forward from your response, Thanks Rashid Amjad.
$35 USD 在37天之内
5.0 (3条评论)
3.4
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用户头像
Hello, I have a senior full-stack developers Team with more than 10 years of development experience. Strong experiences in Spring Boot - REST - MongoDB (and PostgreSQL/Liquibase). I have worked on lots of projects, and pretty sure, I'm the best fit for this project since I have all qualifications needed and strong communications skill. I will lead the project to success with my perfect team spirit and steady efforts. >>Can you please share a detailed document of your project? >>Can we discuss more in the chat room regarding work? Hope to contact you and have a detailed discussion over chat. I am looking forward to working with you. Thanks, Anvesh
$15 USD 在40天之内
5.0 (2条评论)
3.4
3.4
用户头像
⭐⭐⭐⭐⭐YOU'RE LOOKING FOR ME!!!⭐⭐⭐⭐⭐ Hello, I can finish this project within 1 month. As a senior Full Stack Developer, I have strong knowledge and rich experience with Spring Boot, PostgreSQL, RESTful APIs, OpenAPI. I can start working immediately and work full time on your timezone. I think I am a great fit for this project. Looking forward to working with you. Thanks so much.
$20 USD 在40天之内
5.0 (1条评论)
2.6
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Hi Ahmed A., We went through your project description and it seems like our team is a great fit for this job.
$21 USD 在7天之内
0.0 (0条评论)
0.0
0.0
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GREETINGS DEAR CLIENT, CERTIFIED EXPERT IN NAMED SKILLS, Dear Client, I have Keenly gone through your project requirements as given in your project description. I gladly inform you that i am in possession of all clearly stated required skills (Hibernate, Spring Boot, Java, NoSQL Couch & Mongo and RESTful API) as this is my area of professional specialization having completed all engineering certifications and developed adequate experience in this field. I humbly request you to consider my bid for professional and quality services always, with no timeline and quality excuses, and 100% client satisfaction guaranteed. Message me we discuss more about the project. THANK-YOU and WELCOME.
$50 USD 在34天之内
0.0 (0条评论)
0.0
0.0
用户头像
Hello, I am excited to apply for the Backend Java Developer position that you have posted on Freelancer. As an experienced developer with a passion for delivering high-quality code and developing scalable solutions, I believe I would be an excellent fit for this role. In my current role as a Backend Java Developer at ITC Company, I have been responsible for designing and implementing RESTful web services, building data-driven applications using Spring Boot and Hibernate, and optimizing database performance. I have also collaborated with cross-functional teams to deliver end-to-end solutions that meet the needs of clients. I have a solid understanding of various web development frameworks and technologies, including Java, Spring Framework, Hibernate, MySQL, and AWS. I also keep up with the latest trends and best practices in software development to ensure that I am always delivering the highest-quality solutions. As a self-motivated and detail-oriented individual, I thrive in a fast-paced environment and enjoy taking on complex challenges. I am a team player who is comfortable working with a diverse group of stakeholders, including product owners, designers, and front-end developers. I believe that my skills and experience make me a strong candidate for this position. I am excited about the opportunity to contribute to your team and help you achieve your goals. Thank you for considering my application. Sincerely, Tamanna Ahsan
$16 USD 在40天之内
0.0 (0条评论)
0.0
0.0
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Hi, client. As a java full stack developer I have built some SAAS product using spring boot frameworks including microservices from scratch to the end-deploying to the dedicated server. I can support you to complete your all requirements on time. And I can extends your website's functionality with my good experience and skills. I wanna work with you for a long term. If you want I can give you my idea for improving yours. Thanks
$20 USD 在40天之内
0.0 (0条评论)
0.0
0.0
用户头像
Hi I read your job description, and I understand you are looking for an expert who is well-versed in Java/JavaFx/Spring Framework. As a senior full-stack developer with vast experience of 7+ years, I am very confident in this project. My core skills for this project are ✅ Spring Boot, Struts. ✅ React, NexJS, Vue, Vuetify, Vuex, NuxtJS, Material UI, Angular ✅ JS, HTML5, CSS3, SCSS, SASS ✅ MySQL, PostgreSQL, MongoDB, MS Access
$15 USD 在40天之内
0.0 (1条评论)
0.0
0.0

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GERMANY的国旗
Lüneburg, Germany
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会员自5月 27, 2009起

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