Senior Blockchain Developer for Smart Contracts

เปิด โพสต์แล้ว 2 วันที่ผ่านมา ชำระเงินเมื่อจัดส่ง จบใน 5 วัน
เปิด ชำระเงินเมื่อจัดส่ง จบใน 5 วัน

I need a senior or above Blockchain developer!

I have 4 smart contracts deployed on the Polygon blockchain that require a skilled developer's attention. Most of the job is done, but a few slight changes are needed.

Key Tasks:

- Update the logic of the smart contracts according to my instructions.

- Integrate the smart contracts with other contracts.

Ideal candidates should have:

- Extensive experience with the Polygon blockchain.

- Proficiency in Solidity as all contracts are written in this programming language.

- Proven track record in updating smart contract logic and performing integrations.

- Strong understanding of security enhancements even though they may not be needed at this stage.

Your expertise will ensure these contracts function precisely as intended.

Solidity Blockchain

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freelancer 55 คน กำลังเสนอราคาในงานนี้ โดยมีราคาเฉลี่ยอยู่ที่ $576

neerajdhameliya

Greetings! I’m a senior blockchain developer with extensive experience in Solidity and Polygon blockchain development. I’ve worked on numerous projects involving smart contract updates, logic modifications, and integr เพิ่มเติม

$500 USD ใน 7 วัน
(14 รีวิว)
5.9
rashidamjad

Hello Jonatas, I am excited about the opportunity to assist you with your smart contracts on the Polygon blockchain. With over 5 years of experience in blockchain development and a strong proficiency in Solidity, I ha เพิ่มเติม

$650 USD ใน 15 วัน
(2 รีวิว)
5.0
iradoicic04

✋ Hi there, I can update and integrate your Polygon-based smart contracts, ensuring they function as intended with precise logic adjustments and seamless integration. ✔️ I have extensive experience with Solidity and t เพิ่มเติม

$250 USD ใน 7 วัน
(4 รีวิว)
4.0
Sohail748

Hi There, I’m excited to offer you a 20% discount on smart contract development and blockchain solutions. With over 7 years of experience in blockchain technology, I specialize in designing, developing, and deploying s เพิ่มเติม

$250 USD ใน 1 วัน
(2 รีวิว)
3.6
codeman01

Hi, I’m excited to apply for the Blockchain Developer position to assist with your smart contracts on the Polygon blockchain. Project Approach: 1. Smart Contract Logic Updates: I will carefully review your existing เพิ่มเติม

$750 USD ใน 7 วัน
(4 รีวิว)
3.9
imandaneshi1

Hello, Jonatas. I’m a senior blockchain developer with extensive experience working on the Polygon blockchain and proficiency in Solidity. I’d be happy to assist in updating the logic of your smart contracts and integ เพิ่มเติม

$610 USD ใน 5 วัน
(1 รีวิว)
3.0
deniskirilov0212

Hello! I’m an experienced blockchain developer with extensive expertise in Solidity and the Polygon blockchain, and I’d be delighted to assist with updating and integrating your smart contracts. I will carefully imple เพิ่มเติม

$610 USD ใน 5 วัน
(1 รีวิว)
2.6
nnead

With an extensive background in blockchain and proven knowledge of the Polygon network, I am confident I can successfully complete your project. My proficiency in Solidity and demonstrated track record in updating smar เพิ่มเติม

$500 USD ใน 7 วัน
(1 รีวิว)
2.0
yeferson778

✨Hello there!✨ I see you're in need of a senior-level Blockchain developer to update and integrate smart contracts on the Polygon blockchain. With my extensive experience in Solidity and blockchain development, I can เพิ่มเติม

$540 USD ใน 7 วัน
(1 รีวิว)
2.0
SubhanaWaseem

Hi,Can you please provide the instructions for updating the smart contract logic, as well as details about the other contracts that need to be integrated with the existing ones? Additionally, are there any specific tes เพิ่มเติม

$670 USD ใน 12 วัน
(1 รีวิว)
1.4
sofiaj3

⭐Hello, thanks for your job posting.⭐ I've read your description carefully and I'm very interested in your project. I have extensive experience in Solidity and Blockchain. I would also like to discuss your project in m เพิ่มเติม

$250 USD ใน 5 วัน
(0 รีวิว)
0.0
nicholasjon87

Hello, I am a seasoned Blockchain developer with a strong background in working with the Polygon blockchain and proficiency in Solidity. I have successfully updated smart contract logic and integrated contracts in the เพิ่มเติม

$750 USD ใน 7 วัน
(0 รีวิว)
0.0
professorxwriter

Hello Jonatas D., I understand that you are seeking a senior Blockchain developer to update the logic of smart contracts deployed on the Polygon blockchain and integrate them with other contracts. As an experienced B เพิ่มเติม

$500 USD ใน 7 วัน
(0 รีวิว)
0.0
sobia49

Hello Jonatas D., I understand that you are in need of a senior Blockchain developer to update the logic of 4 smart contracts deployed on the Polygon blockchain and integrate them with other contracts. With my extens เพิ่มเติม

$250 USD ใน 3 วัน
(0 รีวิว)
0.0
dusanr1

Hello Jonatas D., I would like to grab this opportunity and will work till you get 100% satisfied with my work. As an experienced developer, I can complete your project with my relevant skills and experience in Block เพิ่มเติม

$640 USD ใน 7 วัน
(0 รีวิว)
0.0
softwareinsight

Hi,Can you please provide more details about the specific changes required for the smart contract logic and the integrations with other contracts? Additionally, are there any existing security audits or testing reports เพิ่มเติม

$670 USD ใน 7 วัน
(0 รีวิว)
0.0
kostad1

Hey Mate! Great! I can help you perfectly with your project. I am skilled in Solidity and Blockchain. Let's discuss your project in more detail via chatting. Regards Kosta

$500 USD ใน 4 วัน
(0 รีวิว)
0.0
ayesha0124

Hey there, I have worked on similar project so i can help u with it. Please contact me as I can help u with Blockchain and Solidity. Here is a link to my profile: https://www.freelancer.com/u/ayesha0124 Regards

$750 USD ใน 8 วัน
(0 รีวิว)
0.0
idrit

❤️❤️+=+=+=+❤️❤️❤️=+=+=+❤️ Happy New Year ❤️=+=+=+❤️❤️❤️=+=+=+=❤️❤️ hello, dear client. Happy New Year! I am full stack development focusing on Web and Mobile app development. Of course, I read your job description full เพิ่มเติม

$1000 USD ใน 7 วัน
(0 รีวิว)
0.0
trm66614

Hi there,Good afternoon I am Talha. I can work with your project skills Solidity and Blockchain am writing to propose an innovative approach to tackle your project. Our proposal centers on delivering creative and ef เพิ่มเติม

$400 USD ใน 15 วัน
(0 รีวิว)
0.0