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Build API to collect data to send to our Blockchain

Our company leverages the power of Blockchain technology to provide supply chain traceability. In order not to create additional overhead we will be connecting the internal systems of slaughterhouses, packaging companies, retailers etc.. to our system.

We need someone to help us build our API that allows these companies to send us the right data for us to create 'assets' and 'events' on the Blockchain.

Experience: 4 - 6 years Skills: CoreJava, J2EE, Spring, Spring Boot, RESTful, Microservices, Product Development, Backend Developer, Architecture Design, Full stack, Redis, NoSQL, MongoDB

Compétences : Java, J2EE, NoSQL Couch & Mongo , Architecture Logicielle, Full Stack Development

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Concernant l'employeur :
( 0 commentaires ) Mol, Belgium

Nº du projet : #20168367

37 freelance font une offre moyenne de €16/heure pour ce travail

Colaninfotech

## J2EE, Spring & Blockchain Expertise ## Hello there, This is Sakthi from Colan. We have gone through your requirement and exactly identified one good developer from our internal team. He has very good experi Plus

€16 EUR / heure
(22 Commentaires)
8.1
technosystem

I am a blockchain API integration expert and i can get all kind of api done. Since 2012 years i have been developing Blockchain, Decentralized Exchanges, Crypto Coins based on ERC20, Bitcoin Core, X11, IOTA, Dash, Minn Plus

€22 EUR / heure
(27 Commentaires)
8.2
xiaomingming

Hello dear. I have read all description and very interested in this project. I m a senior web developer working for 6+ years and my skills and experiences are perfectly fitted on this project. It is my pleasure to wo Plus

€25 EUR / heure
(41 Commentaires)
7.1
point2solutions

Dear client I AM TOO MUCH INTERESTED TO TALK WITH YOU FOR FURTHER DISCUSSION ON yoursPROJECT. we have currently 20 projects running with us on different concept in blockchain, Crypto exchange website, wallet system Plus

€15 EUR / heure
(7 Commentaires)
6.8
machexport

I can build api for you. I have 8+ years of experience. I assure you that i will give 100% quality work. Let us discuss and proceed further in chat. I am online. Please reply.

€15 EUR / heure
(6 Commentaires)
6.2
okzhang321

Hello. I am very pleasure the opportunity to discuss this job with you. I am a full time freelancer with skills and experience on larabel,wordpress,codeignitor and react.js,node.js,Django, JavaScript etc. Especially, Plus

€20 EUR / heure
(120 Commentaires)
6.3
khangcnttit92

Hi nice too meet you Firstly, thanks for visiting my profile With more than 10 year in Java and Java spring So I can make it as best for you Can we talk? Thanks you in me

€15 EUR / heure
(149 Commentaires)
6.5
expertjavagiant

Hi Sir, I have more than 9 years of experience in Software development and Enterprise System Integration on Java platform. Good experience in development of Back-End system with NOSQL DB. I worked heavily on REST Web s Plus

€15 EUR / heure
(42 Commentaires)
6.1
webNapp

Hi, I have more than 8 years experience in all the skills which you mentioned in your description like CoreJava, J2EE, Spring, Spring Boot, RESTful, Microservices, Product Development, Backend Developer, Architecture D Plus

€15 EUR / heure
(7 Commentaires)
5.9
unboltsoft

We are a Ukrainian software development company that employs several passionate engineers. Our main focus is scientific software, but we also do web and mobile development. In the last few years we have completed man Plus

€15 EUR / heure
(2 Commentaires)
5.3
gongfei

Hi How are you? I read your proposal and i am quite interested in your project I have rich experience in blockchain, javaspring, nodejs, Look forward to working with you in good partnership Best regards

€15 EUR / heure
(6 Commentaires)
4.9
imperialsoftech

Hello Mate, ->We are EXPERT IN BLOCKCHAIN | SMART CONTRACT | SOLIDITY | HYPERLEDGER with 4+ years of experience!" -> We already have a Supply Chain Experience in both Hyperledger and Ethereum please come forward for Plus

€18 EUR / heure
(2 Commentaires)
5.0
deytps86

Hello I am working in Java/J2EE technologies for 17+ years with Plenty of REST services implementation in various technologies. I worked in Springboot /Spring Framework using Spring REST, Security, Data/Repository with Plus

€18 EUR / heure
(32 Commentaires)
5.2
FutureTechno1

Hi, I have expertise with Blockchain litecoin, forkcoin, eyescoin, btc, erc-20, etc. Please check below links-- [login to view URL] [login to view URL] [login to view URL] Plus

€18 EUR / heure
(18 Commentaires)
5.3
dbuglab

✅Hello, Nice to meet you. ✅I can start work immediately, click on chat button for further discussing.. Why You consider Me? ✮✮✮✮✮ 7+ years of experience in developing websites ✮✮✮✮✮ Portfolio in more than 30 fields Plus

€15 EUR / heure
(9 Commentaires)
5.2
shingjin

Hi, there. Thanks for posting this job. I am very interested in your proposal. Because I have rich experience in this area. Please message me to discuss further. Thanks and Best!!!

€15 EUR / heure
(33 Commentaires)
5.5
makelegend17

Hello sir, how are you? I checked your all requirements and understood what you want in this project. I am an excellent Cryptocurrency Expert who have enough experiences in ERC20 Token/ICO Service/Smart contract and Ex Plus

€15 EUR / heure
(3 Commentaires)
4.1
abhilashtv

Hi, ➲ 6+ years of full-time experience with Ruby on Rails and billed 52,000+ Upwork hours (90+ successful projects) ➲ Upwork Top 1 Certification for Ruby on Rails I have worked on some of the most complex web applica Plus

€15 EUR / heure
(2 Commentaires)
4.1
chesslover

Hi there, I have already built a similar blockchain API project, please check below: https://www.freelancer.com/projects/javascript/Build-API-proof-concept/ Senior multi-blockchain/multi-cryptocurrency developer her Plus

€18 EUR / heure
(2 Commentaires)
2.7
gaurav

✅ Hello, ★★★★ Try me once. You will come BACK over and over, I PROMISE ★★★★ I am EXTREMELY passionate about web development and solving problems. If you're not sure if my services are right for y Plus

€15 EUR / heure
(1 Évaluation)
2.2