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Check out a sample of the 158 Blockchain Development jobs posted on Upwork

Experienced Blockchain Developer Needed Hourly ‐ Posted 17 days ago

Less than 30 hrs/week
Hours needed

1 to 3 months
Duration

Intermediate
Experience level

We are seeking an experienced Blockchain Developer to join our team. As a Blockchain Developer, you will be responsible for designing,…

Blockchain Development Blockchain Development Jobs Web Development JavaScript Blockchain Architecture Blockchain
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US$100
Fixed-price

Entry
Experience level

Hi, I've been trying to create a blockchain to store metadata using Hyperledger Composer, but stuck at the rest api part. I have the .b…

Blockchain Development Smart Contract Blockchain Development Jobs Blockchain Architecture API JavaScript Blockchain
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Ethereum Specialist Hourly ‐ Posted 14 days ago

Less than 30 hrs/week
Hours needed

1 to 3 months
Duration

Intermediate
Experience level

**Job Title: Ethereum Specialist** **Introduction:** We are seeking an experienced Ethereum Specialist to join our dynamic team in the…

Blockchain Development Blockchain Development Jobs API Byteball Bytes DApps HTML5 Distributed Ledger Technology PHP Cryptocurrency
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US$200
Fixed-price

Expert
Experience level

Hello, I am seeking a skilled developer to build a web application similar to ChatGPT or Perplexity, but designed specifically for cry…

Blockchain Development Blockchain Blockchain Development Jobs Cryptocurrency API Integration Web Development API Web Application
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Senior Backend Rust Developer / Solana Hourly ‐ Posted 11 days ago

Less than 30 hrs/week
Hours needed

1 to 3 months
Duration

Expert
Experience level

We are Rocketech and for over 7 years we are helping companies to build and improve their products We are often reached by ambitious te…

Blockchain Development Blockchain Development Jobs Rust
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Ethereum Specialist Hourly ‐ Posted 16 days ago

not_sure
Hours needed

1 to 3 months
Duration

Intermediate
Experience level

### Job Title: Ethereum Specialist #### Introduction: We are seeking a highly skilled and experienced Ethereum Specialist to join our…

Blockchain Development Blockchain Development Jobs API Byteball Bytes DApps HTML5 Distributed Ledger Technology PHP Cryptocurrency
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Blockchain SME for Internal Role Fixed-price ‐ Posted 14 days ago

US$250
Fixed-price

Expert
Experience level

We are seeking a skilled and experienced Blockchain Subject Matter Expert (SME) to join our internal team. As a Blockchain SME, you wil…

Blockchain Development Blockchain Development Jobs Market Analysis Tech & IT JavaScript Blockchain
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Telegram bot Hourly ‐ Posted 12 days ago

not_sure
Hours needed

1 to 3 months
Duration

Intermediate
Experience level

We are looking for a Telegram bot with functionality similar to Hamster bot. The bot should interact with users, provide information, a…

Blockchain Development Bot Development Telegram API Blockchain Development Jobs
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Solana RPC and Validator Infrastructure Developer Fixed-price ‐ Posted 11 days ago

US$100
Fixed-price

Expert
Experience level

We are looking for developers with experience working on Solana validators and RPCs. We are looking for longer term development optimis…

Blockchain Development Linux Python Amazon Web Services Blockchain Development Jobs Blockchain Architecture
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Blockchain Hourly ‐ Posted 11 days ago

Less than 30 hrs/week
Hours needed

Less than 1 month
Duration

Expert
Experience level

Education on how to understand CARDANO blockchain transactions When I look at a CARDANO transaction it seems very confusing - I am lo…

Blockchain Development Blockchain Development Jobs Blockchain Architecture Blockchain
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