Blockchain & Smart Contract Engineer

Posted 4 hours ago

Worldwide

Needs to hire 3 Freelancers
Summary

We are looking for an experienced **Blockchain Developer** to join our Web3 real-estate platform development team. The project combines real estate technology with blockchain infrastructure, and we are looking for someone who can help design, implement, and improve blockchain-related features. As we offer highly competative salary, we will strictly figure out fake or weak developers who also ask for upfront payment or cheating. **Responsibilities:** * Develop and integrate blockchain-based features into an existing platform * Design and implement smart contracts and token-related functionality * Work with backend/frontend developers to connect Web3 components * Ensure security, scalability, and best practices in blockchain development **Requirements:** * Strong experience with blockchain development and smart contracts * Practical experience with Web3 technologies and wallet integrations * Experience with Solidity or similar smart-contract languages * Understanding of token standards, blockchain architecture, and decentralized applications * Ability to review existing codebases and deliver production-quality solutions **To apply, please:** * Send me Git hub for check professionalism * Deliver the 1-hour skill test assignments on time(it will be provided after git hub check) We are looking for a long-term technical partner who can contribute to building a serious Web3 product.

  • More than 30 hrs/week
    Hourly
  • 6+ months
    Duration
  • Intermediate
    Experience Level
  • $60.00

    -

    $150.00

    Hourly
  • Remote Job
  • Complex project
    Project Type
Skills and Expertise
Mandatory skills
Blockchain
Smart Contract
Nice-to-have skills
Electronics
Activity on this job
  • Proposals:Less than 5
  • Last viewed by client:10 minutes ago
  • Interviewing:
    1
  • Invites sent:
    16
  • Unanswered invites:
    15
About the client
Member since Jun 23, 2026
  • Philippines
    Science City Of Muñoz9:53 PM

Explore similar jobs on Upwork

Mechanical Engineering
Microcontroller Programming
Embedded System
Civil Engineering
Blockchain architect for DEX developmentHourly‐ Posted 3 weeks ago
Blockchain Architecture
Blockchain
Ethereum
Smart Contract
Solidity
Software Architecture & Design

How it works

  • Post a job icon
    Create your free profile
    Highlight your skills and experience, show your portfolio, and set your ideal pay rate.
  • Talent comes to you icon
    Work the way you want
    Apply for jobs, create easy-to-by projects, or access exclusive opportunities that come to you.
  • Payment simplified icon
    Get paid securely
    From contract to payment, we help you work safely and get paid securely.
Want to get started? Create a profile

About Upwork

  • Rating is 4.9 out of 5.
    4.9/5
    (Average rating of clients by professionals)
  • G2 2021
    #1 freelance platform
  • 49,000+
    Signed contract every week
  • $2.3B
    Freelancers earned on Upwork in 2020

Find the best freelance jobs

Growing your career is as easy as creating a free profile and finding work like this that fits your skills.

Trusted by

  • Microsoft Logo
  • Airbnb Logo
  • Bissell Logo
  • GoDaddy Logo