reimplement existing API with Java Spring-Boot 4 signal-chat system

Закрыт Опубликован 2 мес. назад Оплачивается при доставке
Закрыт Оплачивается при доставке

We look for Java Spring-Boog and Core-Java senior expert developer with experiences in signal chat system

Your job will be to re-implement this api in java / spring-boot

[login to view URL]


You have to have a installed the docker environment on you PC/Laptop and You document EACH step step to make the [login to view URL] up and running

along with

a docker compose environment to make the new spring-boot api running with it.



suggest if an openAPI definition would reduce your workload, since REST server and client can be generated


reImplement as spring boot service the endpoints documented

here: [login to view URL]

and: [login to view URL]


provide a docker compose incl. all steps to make your code available in a container


- best practices with openAPI

- best practices with spring boot

NO UI for now required!

NO database required!

No REST endpoint exposing for the above named methods required! (only consuming the apis in the given links)

Your background is:

- multiple years of experience with Java

- multiple years of experience with REST APIs

If you are a good fit, you are open to get more tasks about implementing solutions fully on your own (e.g. with your team)


will not be disclosed, place your best bid to get considered

What is next?

We will share you a NDA and afterwards a paid test task.


- you estimate in a WBS (optimistic, expected, pessimistic, where optimistic < expected < pessimistic) after getting the task

- we discuss about clearances and effort

- we mutually agree to effort

- we assign you the task after mutually agreed

- you implement, test and deliver

- you provide also unit /integration tests to ensure code is always working

- you document each required step to make interaction of systems to work

- we test on our premise (you maybe help to fix issues)

- we pay

(basically the rules of freelancer)

Closed book vs open book?

We work only on open book.

Closed book means you are unwilling to define a WBS for the work and you add only a price tag to the task.

We are sorry we will not hire you in such a case!


- in our on premise git (access will be granted to you)

- full sources

- mutliple samples of body and responses of the api in test/resources which will be used as unit tests

- maven

- libs, need prior confirm and we prefer to use mostly latest stable versions

- JDK 17 (mostly LTS)

- your api code working on our end

- provided or fully documented steps to start the docker container

Java Java Spring RESTful API Spring Boot

ID проекта: #37185870

О проекте

22 заявок(-ки) Удаленный проект Последняя активность 1 месяц назад

22 фрилансеров(-а) готовы выполнить эту работу в среднем за $121


Hello Darko! I hope you're well. I'm a senior Spring Boot and Hibernate developer with specialization in developing Spring boot apps. I've worked with numerous Spring Boot services, built on microservices and monolith. Больше

$200 USD за 7 дней(-я)
(5 отзывов(-а))

? Greetings! ? I'm Mohamed, and I'm thrilled to express my interest in the Java and React developer position. With a rich background as a full-stack developer, I have deep expertise in both Java Spring Boot and React Больше

$50 USD за 1 день
(1 отзыв)

Hi I am Bhoopendra holding 15 years of experience in Spring Boot, Spring Webflux, Java Microservices and database. I am ready to work your shared conditions . I have lots of experience in developing and running REST Больше

$40 USD за 7 дней(-я)
(2 отзывов(-а))

Hello there! My name is Mosammet Farjana Akther and I'm a professional website and mobile app developer with 9 years of experience. I understand that you are looking for someone to re-implement your existing API in Jav Больше

$200 USD за 7 дней(-я)
(7 отзывов(-а))

Hello I am experienced software developer and have very good hands on Java, Spring Boot, RDBMS, OpenAPI, AsyncAPI, Maven, Gradle, Docker, Kubernetes, Helm, CI/CD. I thoroughly went through the requirements and I am co Больше

$115 USD за 7 дней(-я)
(4 отзывов(-а))

Hi I am Ajay Chaurasia Tech Lead and Senior Software Engineer holding 6 years of experience in Spring Boot, Spring Webflux, Java Microservices and database.

$60 USD за 7 дней(-я)
(0 отзывов(-а))

Hello, We have been working on excel, vba, macros, finance for more than 9 years. We have more than 8 years of experience doing data based projects. I believe this is something I can for sure :) You may check the pro Больше

$56 USD за 2 дней(-я)
(0 отзывов(-а))

Hello sir, I hope you are good. I have read your job description, its doable job as per my experience and knowledge. I want to ask you few questions about job description. I am full stack developer having a good experi Больше

$50 USD за 7 дней(-я)
(0 отзывов(-а))

Hello!! I have worked with another client in this similar space and I think you find it very interesting to have a chat.

$45 USD за 2 дней(-я)
(0 отзывов(-а))

☀️ Dear Client. I just checked your project carefully. I am an expert in Java and I have a solid understanding of maven,iBATIS,Spring boot, hibernate,Apache Common IO, Apache POI etc. According to my experience, Spring Больше

$50 USD за 7 дней(-я)
(1 отзыв)

Java developer and architect with more than 10 yesrs of experience. Experience with spring and spring boot.

$60 USD за 25 дней(-я)
(0 отзывов(-а))

Hi, I am having expertise in spring boot and technology related to java. Currently working in india’s one of the renowned company.I am having expertise in solving this kind of problem and happy to help you resolve th Больше

$45 USD за 7 дней(-я)
(0 отзывов(-а))

I have more than 5 years of exp in docker, spring boot, open api specs, rest apis. More than 17 years of total software dev exp. I would love to help you with this project.

$1000 USD за 7 дней(-я)
(0 отзывов(-а))

Hello, Warm Greetings! I am a Java developer working on Java technology since 9+ years having hands on windows and web development experience. I would like to help in your application development. To proceed furthe Больше

$100 USD за 7 дней(-я)
(0 отзывов(-а))

I am an experienced Java Developer with a proven track record in Java SE/EE, Spring, Hibernate, and microservices. I am committed to delivering clean, efficient code while ensuring timely project completion. My strong Больше

$45 USD за 3 дней(-я)
(0 отзывов(-а))

As a seasoned Senior Software Engineer with over 5 years of experience, I bring a wealth of knowledge and a strong track record of delivering exceptional results. Let's leverage my expertise to take your project to the Больше

$111.11 USD за 7 дней(-я)
(0 отзывов(-а))

I have the experience to carry out your job. Temho + 10 years of experience. The last 3 years with Spring Boot.

$10 USD за 7 дней(-я)
(0 отзывов(-а))

I have 3+ years of experience in java and spring developement. I had done this type of work already i could be useful in this project.

$50 USD за 21 дней(-я)
(0 отзывов(-а))

Hallo, ich habe mehrere Projekte basierend auf einem Stack java(8-17)/gradle/openApi/spring boot gebaut und über 15 Jahre Entwicklungserfahrung. Die meisten Projekt laufen in eine openshift/kubernetes Umgebung. Des W Больше

$150 USD за 7 дней(-я)
(0 отзывов(-а))

Dear Client, I am a freelance Java Spring Boot developer with over 6 years of experience in creating web applications for various clients. I am interested in your project and I believe I have the skills and expertise Больше

$100 USD за 7 дней(-я)
(0 отзывов(-а))