Hire Blockchain and Cryptography Developer

Blockchain and Cryptography
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Blockchain and Cryptography
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JavaScript 5yr.
Web3.js
React
WebRTC
Ant Design 5yr.
Java
TypeScript
Ajax
Bootstrap
Bootstrap 4
CSS
HTML
Material UI
SCSS
Socket.io
Storybook
Styled components
Tailwind CSS
Ethers.js
Express
GatsbyJS
i18next
Mobx
NestJS
Next.js
Node.js
React Hooks
React Query
Redux
Redux Thunk
Redux-toolkit
Styled components
MongoDB
PostgreSQL
Blockchain
Agile
Clean Architecture
Kanban
Scrum
Cypress
Jasmine
Jest
Mocha
React-testing-library
Unit Testing
dApps
Ethers.js
Hardhat
Docker
Problem Solving
WebSockets
Chakra UI
CSS3
Ext JS
Openai
React-hook-form
seo
WAGMI
Zustand
...

- 5+ years of experience as a Front-end JavaScript Developer. - 5+ years of experience in React.js; - Deep experience in Next.js technology; - Experience with WebRTC, Soket.io; - Good knowledge of Tailwind CSS, Bootstrap, and Chakra UI; - Experience working with Redux, and Docker; - Familiar with Node.js; - Strong abilities working with Web3; - Proficiency in testing frameworks like Jest and Cypress; - E-commerce, web, and mobile applications, including learning platforms, chatbots, dApps, and cryptocurrency wallet extensions.

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Seniority Senior (5-10 years)
Location Castel San Giovanni, Italy
Node.js 5yr.
React 3yr.
Solidity
NFT
Python 10yr.
C++
JavaScript
R
TypeScript
Express
Next.js
HTML
XML
Azure Cosmos DB
BigChainDB
CouchDB
MongoDB
MySQL
PostgreSQL
SQL
Azure Cosmos DB
Asterisk
Avalanche
BEP-20
BigChainDB
BSC
DeFi
ERC-1155
ERC-20
ERC-721
ETH (Ethereum blockchain)
ICO
IPFS (InterPlanetary File System)
TronChain
Wallets (Integration & Transaction Signing)
Bash
Perl
Docker
GitLab CI/CD
Kubernetes
Odoo
Stripe
Payload Verification
Strap
...

• 15+ years of commercial software development experience • Solid knowledge of Solidity, C++, JavaScript, TypeScript; • Deep understanding of blockchain architecture and smart contract logic; • Cosmos, Tron, Avalanche, Binance Smart Chain, Ethereum dApps; • Strong skills in developing NFT smart contracts. Support and payload verification; • NFT Marketplaces (ERC - 721/1155), Crypto Payment Solutions & DeFi Cross Chain Bridges - ERC-20 Tokens, ICO, DEX, Staking, Swapping; • Highly qualified knowledge of Stripe payment system integration to blockchain data; • 10+ years experience working with Python; • 5 years experience working with Node.js; • Strong abilities with Express; • Experience working with Docker, and Kubernetes (K8s); • 3+ years of development experience with React.js. • No scheduled vacations within the next 3 months;

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Seniority Senior (5-10 years)
Location Ukraine
Python 5yr.
QA Automation 3yr.
Telegram API
Telegram Mini Apps
FastAPl 5yr.
RPA (Robotic Process Automation) 2yr.
Parse 2yr.
MySQL
SQL Alchemy
Cryptocurrencies
Crypto Services
TON
TonKeeper
web3
DFF (Feature Driven Development)
FastApi
pyTelegramBotAPI
Project Management
Mini-Apps
Mobile development
Multiprocessing
...

- Strong background in computer engineering and automation; - 5+ years of experience with Python; - Good knowledge of the blockchain industry and web3 project development; - Proven expertise in developing mobile applications, crafting solutions for crypto services, and creating telegram mini-apps; - Skilled in web automation, bot development, parsing, and working with web3 technologies.

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Seniority Middle (3-5 years)
Location Ternopil, Ukraine
web3
Node.js
NestJS
PostgreSQL
AWS
C++
Java
PHP
Solidity
AdonisJS
Angular
React
Vue.js
jQuery
Spring Framework
Apache Cassandra
Memcached
Microsoft SQL Server
MySQL
Redis
Kohana
Laravel
Lumen
Yii
Azure (Microsoft Azure)
GCP (Google Cloud Platform)
AWS SQS
Azure (Microsoft Azure)
Apache Kafka
RabbitMQ
Apache Solr
Cross-chain Swaps
elliptic cryptography
ETH (Ethereum blockchain)
Hyperledger
ICO
Microservice Architecture
Netcat cms
NFT
...

- Full Stack Developer with strong blockchain skills. - Over 10 years of experience in IT. - More than 7 years of experience with Node.js and Nest.js. - Strong skills with Express.js. - Over 7 years of experience with PostgreSQL. - In-depth knowledge of Docker and Kubernetes. - Experience with Angular. - Experienced in blockchain projects since 2017. - In-depth knowledge of blockchain integration into the backend. - Upper-intermediate English. - Available ASAP.

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Seniority Senior (5-10 years)
Location Ukraine
Rust 2yr.
Solidity
C++
Go
JavaScript
PHP
TypeScript
Ethers.js
Node.js
React
Vue.js
Web3.js
Laravel
MongoDB
MySQL
Anchor
Binance
BSC
DAO
Dapp
DeFi
DEX
ERC-1155
ERC-721
Ethers.js
ETH (Ethereum blockchain)
EVM
Hardhat
HTX ECO Chain (Heco)
MetaMask
NFT marketplace
Phantom
Polkadot
Polygon
Smart Contract
Solana
Tezos
Torus
Tron
Truffle
web3
Principle
RESTful API
AMM
NFT
SSV network
...

- Engineer who has 6+ years of experience with many programming languages, frameworks, and platforms; - 2+ years experience with developing smart contracts on Rust; - Solid skills with Solidity; - Working experience in building an NFT marketplace platform on Polygon and Binance Smart Chain using ERC-721 and ERC-1155; - Experience with ether.js, web3.js, and JS/TS frameworks; - Familiar with blockchain Ethereum, Binance, Tron, Solana, Polkadot, Tezos, Polygon, Huobi ECO chain, etc; - Deep knowledge in implemented Metamask, Torus, and other wallets to increase user experiences with the web apps; - Advanced English; - Available ASAP.

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Seniority Senior (5-10 years)
Location Singapore
NFT 5yr.
Smart Contract
DFF (Feature Driven Development)
CI/CD
SOLID
PostgreSQL
Azure Blockchain
Alchemy
Azure Blockchain
BSC
Coinbase wallet
Cryptocurrencies
DeFi
DEX
EIP
ERC-20
ERC-721
ERC-777
Infura
IPFS (InterPlanetary File System)
MetaMask
Polygon
Tron
API
CD DevOps pipelines
Jenkins
Docker
Git
Microsoft Visual Studio Code
Sublime Text
Mocha
Unit Testing
ChaiJs
POS
Stylelint Jira
WalletConnect
...

Accomplished Blockchain Developer with over 5 years of expertise in designing and implementing advanced applications with a focus on blockchain technology, smart contract and dApp development. Strengths include hands-on experience with PoS/PoA sidechains, Ethereum, Binance, Tron, and a plethora of ERC standards, backed by robust skills in Golang, JavaScript, Solidity, and cloud technologies. Proficient in fostering innovative database design, API development, and server management, which are further enhanced by a seasoned track record in deploying blockchain solutions on AWS and GCP. Distinguished by participation in high-profile projects like decentralized exchanges and NFT platforms, showcasing not only technical prowess but also effective collaboration with cross-functional global teams and deployment of CI/CD pipelines.

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Seniority Senior (5-10 years)
Location Indore G.P.O., India
Docker 4yr.
Kubernetes 4yr.
Terraform 4yr.
AWS 4yr.
Java
CSS
HTML
Flask
SalesForce Workflow
AWS Redshift
MySQL
PagerDuty
AWS API Gateway
AWS Cloudformation
AWS CloudFront
AWS CloudWatch
AWS CodeDeploy
AWS Cognito
AWS EB (Amazon Elastic Beanstalk)
AWS Kinesis
AWS Redshift
AWS Route 53
AWS Secrets Manager
AWS SNS
Azure Blockchain
Agile
Scrum
Apache Maven
AWS API Gateway
Azure Blockchain
Cryptocurrencies
DeFi
GitLab CI/CD
Prometheus
Rancher
Ubuntu
AWS ACM
...

Accomplished DevOps Engineer with a strong foundation in both the energy and technology sectors, bringing over a decade of engineering experience. Exceptional proficiency in Amazon AWS Services, containerization, and orchestration with certifications such as AWS Solution Architect, Certified Kubernetes Administrator, and HashiCorp Certified: Terraform Associate. Demonstrated capability in creating robust DevOps solutions, notably with Terraform, and managing CI/CD pipelines using Jenkins and Bitbucket. Proven track record with a MSc in Advanced Mechanical Engineering and significant achievements in creating testing environments, implementing SSO solutions, and leading complex projects in the DeFi space.

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Seniority Senior (5-10 years)
Location London, United Kingdom
PHP 9yr.
JavaScript 9yr.
MySQL 9yr.
Solidity
Git 9yr.
SOLID 2yr.
Laravel 1yr.
C/C++/C# 1yr.
C++
Python
CSS
HTML
Ethers.js
Node.js
Web3.js
CodeIgniter
MongoDB
BitBucket
Bitcoin Blockchain
BSC
Ethers.js
ETH (Ethereum blockchain)
Hardhat
MetaMask
Phantom
Remix
Tron
Truffle
Docker
LAMP
OpenCart
WordPress
Telegram API
CodeIgniter 3+
LEMP
MERN stack (MongoDB, Express, React, Node)
Metamask SDK
Opencart 3
WalletConnect
...

- 10+ years experience as a Full-Stack Developer with of developing robust web applications and services, including extensive experience in both frontend and backend technologies; - Technical proficiency with PHP and MySQL for server-side development, advanced JavaScript utilization on the client side; - Strong abilities with blockchain technology engagement, including smart contracts and wallet development using Solidity, Hardhat, Truffle, WalletConnect, and Metamask SDK; - Experienced with libraries Web3.js, and Ethers.js; - Ability to work Ethereum Blockchain, Binance Smart Chain (BSC), with different wallets including MetaMask; - Adept at working with a variety of frameworks and languages beyond core competencies, such as Laravel, Solidity, Node.js, and C++; - Up-to-date with modern practices, possessing comprehensive experience in codebase upgrades, performance optimization, and integrating third-party APIs; - Successfully led a development team, demonstrating strong leadership and project estimation skills.

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Seniority Senior (5-10 years)
Location Ukraine
Flutter 4.5yr.
Firebase 4.5yr.
GCP (Google Cloud Platform) 4yr.
Go
Node.js
TensorFlow
Laravel
TensorFlow
GCE
GCE
OpenAL
...

* Software engineer with over 4 years of experience in mobile app development, specializing in Flutter and proficient in Dart, Kotlin, and Go. * Strong technical expertise in building robust backend systems, REST APIs, and has a keen interest in Blockchain technology within the GCP ecosystem. * Demonstrated ability in web development using modern technologies including HTML, CSS, JavaScript, React, and NextJs. * Active contributor to open-source projects, enhancing the value of platforms like APIDash and GoCoin. * Holds a Bachelor's and a Master's degree in Computer Engineering, underpinning a solid understanding of software development practices. * Recognized for building impactful mobile applications such as Edutive for education and Racha for addiction management.

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Seniority Middle (3-5 years)
Location Bamenda, Cameroon

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Talk to Our Expert

Our journey starts with a 30-min discovery call to explore your project challenges, technical needs and team diversity.
Manager
Maria Lapko
Global Partnership Manager

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FAQs on Blockchain and Cryptography Development

What is a Blockchain and Cryptography Developer? Arrow

A Blockchain and Cryptography Developer is a specialist in the Blockchain and Cryptography framework/language, focusing on developing applications or systems that require expertise in this particular technology.

Why should I hire a Blockchain and Cryptography Developer through Upstaff.com? Arrow

Hiring through Upstaff.com gives you access to a curated pool of pre-screened Blockchain and Cryptography Developers, ensuring you find the right talent quickly and efficiently.

How do I know if a Blockchain and Cryptography Developer is right for my project? Arrow

If your project involves developing applications or systems that rely heavily on Blockchain and Cryptography, then hiring a Blockchain and Cryptography Developer would be essential.

How does the hiring process work on Upstaff.com? Arrow

Post Your Job: Provide details about your project.
Review Candidates: Access profiles of qualified Blockchain and Cryptography Developers.
Interview: Evaluate candidates through interviews.
Hire: Choose the best fit for your project.

What is the cost of hiring a Blockchain and Cryptography Developer? Arrow

The cost depends on factors like experience and project scope, but Upstaff.com offers competitive rates and flexible pricing options.

Can I hire Blockchain and Cryptography Developers on a part-time or project-based basis? Arrow

Yes, Upstaff.com allows you to hire Blockchain and Cryptography Developers on both a part-time and project-based basis, depending on your needs.

What are the qualifications of Blockchain and Cryptography Developers on Upstaff.com? Arrow

All developers undergo a strict vetting process to ensure they meet our high standards of expertise and professionalism.

How do I manage a Blockchain and Cryptography Developer once hired? Arrow

Upstaff.com offers tools and resources to help you manage your developer effectively, including communication platforms and project tracking tools.

What support does Upstaff.com offer during the hiring process? Arrow

Upstaff.com provides ongoing support, including help with onboarding, and expert advice to ensure you make the right hire.

Can I replace a Blockchain and Cryptography Developer if they are not meeting expectations? Arrow

Yes, Upstaff.com allows you to replace a developer if they are not meeting your expectations, ensuring you get the right fit for your project.