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36 anonymous candidates

Blockchain Fullstack Developer

5+

Popular candidate! Connected by 5+ companies

  • Croatia, Rijeka
  • 5+ years
  • $48k ($4k / month)
  • Intermediate
Core technical skills
Blockchain
Solidity
Rust
React.js
Node.js
Express.js
TypeScript
JavaScript
PHP
Vue.js
Python
HTML & CSS
Web3
Solana
Go
Achievements / Key results
As a team lead at Automatic, built website FE using React material-UI, integrated smart contracts using web3 and built back-end using Node.js. I have built crypto wallet like Tornado, implemented Zk-SNARK using Solidity. I've been involved other blockchain products : NFT marketplace, DEX, Centralized Crypto Exchange, NFT and Crypto Staking. (Solana, Ethereum, Solidity, Rust, Truffle, Remix, Web3, MERN/MEAN) Strong experience in developing large-scale concurrent, event-driven distributed systems, as well as working on public-key cryptography, blockchain.
Considering roles
FRONTEND
BACKEND
MOBILE
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Senior Full-stack Developer (Team Lead)

    Jun 2021 - Nov 20216 months
  • Senior Full-stack Blockchain Developer

    Sep 2019 - May 20211 year 9 months
  • Blockchain Developer

    Mar 2018 - Jul 20191 year 5 months
  • Senior Full-Stack Developer

    May 2015 - Jan 20182 years 9 months

Web3 & Solidity developer

5+

Popular candidate! Connected by 5+ companies

  • Norway, Oslo
  • 3-5 years
  • $120k ($10k / month)
  • Advanced
Core technical skills
Rust
Solidity
Web3
React.js
Node.js
MySQL
Solana
Blockchain
GraphQL
React Native
PostgreSQL
TypeScript
JavaScript
AWS
Achievements / Key results
• Built Dex, Farming, Stacking, Pool, NFT card & Casino game, NFT Marketplace, ICO, IDO on Ethereum and Solana protocol. • Designed and developed a website, including optimized check-out page that increased user clicks, and subsequently customer purchases by 20%. • Implemented server that expedited document generation and search functionality by 23% • Designed processes for cleanup and performance improvement, that minimized downtime by 13%
Considering roles
FRONTEND
BACKEND
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Smart Contract Developer

    Jun 2020 - current time2 years 2 months
  • Blockchain Developer

    Aug 2018 - Mar 20223 years 8 months

Staff Engineer / Team Leader

  • Vietnam, Dalat
  • 5+ years
  • $100k ($8.3k / month)
  • Advanced
Core technical skills
Jest
AWS
Web3
JavaScript
Solidity
TypeScript
MySQL
Go
Blockchain
Ruby
React.js
Node.js
PostgreSQL
Achievements / Key results
* Uploaded +30m json music metadata documents to IPFS using golang. * Written a Metadata Reference Token smart contract in Solidity with significant tests written in typescript. * 20+ years software development experience in various roles.
Considering roles
BACKEND
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Staff Engineer

    Aug 2020 - current time2 years
  • CTO

    Aug 2017 - current time5 years
  • Consulting CTO / Lead Developer

    Dec 2014 - Jun 20172 years 7 months
  • Various Roles

    Dec 2000 - Dec 201414 years 1 month

Senior Web3 Engineer

5+

Popular candidate! Connected by 5+ companies

  • United States, San Jose
  • 5+ years
  • $120k ($10k / month)
  • Advanced
Core technical skills
Web3
React.js
Node.js
TypeScript
Vue.js
Python
Express.js
Solidity
Solana
Blockchain
JavaScript
PHP
GraphQL
MySQL
Docker
Achievements / Key results
- As a primary Web3 engineer, took part in development of Web3 product that has 80K customers now - Wrote automated tests for various products and increased productivity and performance - Crafted SEO strategy and intuitive interface for various websites to achieve prominent rankings across top browser platforms - Owned, designed and implemented 3 MVPs from scratch and increased the fundings for the products
Considering roles
FRONTEND
BACKEND
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Senior Full Stack Web3 Engineer

    Feb 2019 - current time3 years 6 months
  • Senior Full-Stack Developer

    Dec 2016 - Oct 20192 years 11 months
  • Web Developer

    Mar 2015 - Dec 201510 months
  • Software Programmer

    Jan 2014 - Dec 20141 year

Senior Full-Stack Developer

  • China, Jilin City
  • 5+ years
  • $100k ($8.3k / month)
  • Advanced
Core technical skills
Django
Go
React.js
Laravel
MySQL
MongoDB
Node.js
TypeScript
JavaScript
HTML & CSS
PostgreSQL
AWS
Solidity
Web3
Blockchain
Achievements / Key results
- Built several smart contracts and programs for minting and trading NFTs on Ethereum and Solana blockchain. Developed front-end web pages running on Binance chain and Solana using Web3 and Next.js. - Designed, architected, and implemented both the front-end of the mobile web and the backend REST API server using Angular Ionic and Django. Created a system of event messaging using Django channels and Redis. - Developed a new Veritrans Golang payment implementation.
Considering roles
FULL STACK
BACKEND
FRONTEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Blockchain engineer

    Feb 2021 - Feb 20221 year 1 month
  • Front End Developer

    Feb 2020 - Dec 202011 months
  • Senior Full-Stack Developer

    Feb 2019 - current time3 years 6 months
  • Full-Stack Developer

    Jun 2016 - Mar 20192 years 10 months

Blockchain Developer

  • United States, Canton
  • 1-3 years
  • $110k ($9.2k / month)
  • Advanced
Core technical skills
Web3
Blockchain
HTML & CSS
TypeScript
JavaScript
Go
Solidity
Achievements / Key results
- developed and maintained AMM exchange - developed and maintained blockchain Ethereum bridge - developed and maintained NFT marketplace and subgraphs - audited smart contract security
Considering roles
BACKEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Blockchain Engineer

    Dec 2021 - current time8 months
  • Blockchain Intern

    Mar 2020 - Dec 202010 months

Full-Stack Blockchain Developer

10+

Popular candidate! Connected by 10+ companies

  • Canada, Toronto
  • 5+ years
  • $180k ($15k / month)
  • Advanced
Core technical skills
JavaScript
React.js
Web3
Vue.js
Node.js
Solidity
Redux
TypeScript
AWS
Express.js
GraphQL
React Native
PostgreSQL
Blockchain
Achievements / Key results
- Built automated trading strategies on Uniswap and QuickSwap. Supported limit orders on the Ethereum Mainnet and Polygon (Matic). Built and tested smart contracts - Delivered payment system integration of Game rewards token - Built NFT token (DPET) for handling game events like collecting breeding, evolve, battle - Optimized the web marketing by performing the tasks of SEO, PPC, conversion optimization, social media and site analysis etc.‎‎‎
Considering roles
FRONTEND
BACKEND
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Blockchain Full-Stack Engineer

    Oct 2021 - Dec 20213 months
  • Blockchain Frontend Engineer (NFT)

    Jun 2020 - Dec 20207 months
  • Blockchain Full-Stack Engineer

    Oct 2019 - Mar 20206 months
  • Backend Lead Engineer

    Jun 2018 - Sep 20184 months
  • Frontend Lead Engineer

    Aug 2016 - Dec 20171 year 5 months
  • Frontend Engineer

    Dec 2014 - May 20161 year 6 months

Full Stack Engineer

  • Japan, Matsuyama
  • 3-5 years
  • $60k ($5k / month)
  • Upper intermediate
Core technical skills
React.js
Vue.js
Angular.js
Node.js
PHP
Python
MongoDB
MySQL
Web3
Solidity
GraphQL
Achievements / Key results
* Implemented websites, mobile applications, and landing pages from concept through deployment. In-depth understanding of blockchain architectures and a clear understanding of how various blockchain platforms differ. * Reduce the burden on the UI system by building a user-friendly interface and using an optimization algorithm. * Contribute to component level features’ design and development. * Implemented MVC/MVW architecture using Servlet, Django, JavaScript, jQuery, Nodejs, and RESTful.
Considering roles
FRONTEND
BACKEND
FULL STACK
DEVOPS
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Full Stack Engineer

    May 2015 - Oct 20216 years 6 months

Fullstack + Web3 + Blockchain Developer

10+

Popular candidate! Connected by 10+ companies

  • United States, Garden City
  • 5+ years
  • $100k ($8.3k / month)
  • Advanced
Core technical skills
React.js
JavaScript
TypeScript
Web3
Solidity
Blockchain
MongoDB
MySQL
Node.js
PHP
Rust
Go
C++
Redux
Achievements / Key results
• Having dedicated myself to build NFT marketplace, NFT minting sites, DeFi and DEX platforms in the last couple of years. • Great experience in leading the team consists of 5-10 web engineers. • Got involved in building 30+ live websites so far and have 16+ years of fullstack, 3+ years blockchain experience under my belt.
Considering roles
FRONTEND
BACKEND
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • SMART CONTRACT, WEB3, SUBGRAPH, BACKEND

    Jul 2021 - Mar 20229 months
  • LEAD DEVELOPER (SMART CONTRACT, UI/UX, WEB3)

    Jun 2021 - Dec 20217 months
  • SMART CONTRACT + GRAPH + FRONTEND Developer

    Jan 2021 - Jun 20216 months
  • SMART CONTRACT + FULLSTACK Developer

    Jan 2020 - Jan 20211 year 1 month

Blockchain Developer

  • Singapore, Singapore
  • 5+ years
  • $84k ($7k / month)
  • Upper intermediate
Core technical skills
PHP
Express.js
Node.js
Rust
Solidity
Web3
Vue.js
React.js
Python
Django
C++
C#
Blockchain
Achievements / Key results
• Developed product tours feature improving customer adoption by 25% leading to increased revenue by $1M. • Worked with UX/UI design teams to improve existing apps and increase conversion rates by 20%. • List of products include an ICO, a property transfer Dapp, a token management Dapp, smart contracts.
Considering roles
FRONTEND
BACKEND
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Blockchain Developer

    Jun 2021 - current time1 year 2 months
  • Web3.js and Front End Developer

    Dec 2020 - Jun 20217 months
  • Frontend Developer

    Jan 2020 - Nov 202011 months
  • Full-stack Developer

    May 2018 - Dec 20191 year 8 months
  • Front End Developer

    Dec 2017 - Apr 20185 months

Blockchain Engineer

5+

Popular candidate! Connected by 5+ companies

  • Romania, Bucharest
  • 5+ years
  • $120k ($10k / month)
  • Intermediate
Core technical skills
Blockchain
Node.js
Solidity
Rust
React.js
JavaScript
Java
MongoDB
Web3
Solana
TypeScript
Vue.js
GraphQL
Express.js
Python
Achievements / Key results
- Working with the Ethereum network for ICO & wallet connect on website using various wallet apps. - Smart Contract using ERC20, ERC721, ERC1155, BEP20, SPL(Token, NFT marketplaces), DeFi(Decentralized Finance), DApps such as Lending, Staking, Banking, CEX/DEX. - NFT Apps such as minting sites and marketplace based on ETH, BSC and Solana using Solidity, Rust, Web3.js, Web3.py.
Considering roles
FULL STACK
FRONTEND
DEVOPS
BACKEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Blockchain Engineer

    Jan 2020 - Mar 20222 years 3 months

    Full-Stack Engineer

    Jan 2015 - Nov 20205 years 11 months

Software Engineer

  • Morocco, Kenitra
  • 3-5 years
  • $42k ($3.5k / month)
  • Advanced
Core technical skills
Python
Java
JavaScript
Angular.js
React.js
Django
Web3
Achievements / Key results
Won 1st place at Oakland University's GrizzHacks 5 Hackathon, used Flutter, Spring Boot, MongoDB Atlas and GCP (September 2020). Won Best Use of Google Cloud Platform at IvyHacks 1 (Organized by the Ivy League), used React, Java and Python.
Considering roles
BACKEND
FULL STACK
FRONTEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Software Engineer

    Dec 2021 - current time8 months
  • Software Engineer

    Sep 2019 - Dec 20212 years 4 months

Blockchain Full-stack engineer

  • Japan, Gifu
  • 5+ years
  • $72k ($6k / month)
  • Upper intermediate
Core technical skills
Blockchain
AWS
React.js
Vue.js
Web3
Solidity
Rust
Laravel
Django
Solana
MongoDB
MySQL
PostgreSQL
TypeScript
CI/CD
Achievements / Key results
Worked at Crystl Finanace ($1.5M market cap) Delivered DeFi platform like pancake swap. Have experience in developing NFT and DAO.
Considering roles
PM
BACKEND
QA
FRONTEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Blockchain Frontend Lead and Backend support

    Jul 2021 - Feb 20228 months
  • Blockchain Project Manager

    Jan 2021 - Jul 20217 months

    Senior Blockchain engineer

    Jun 2020 - Dec 20207 months
  • Project Manager

    Jul 2019 - Jan 20207 months
  • Web Full-stack engineer

    Aug 2017 - Jul 20192 years
  • Mobile App Developer

    Jun 2016 - Jun 20171 year 1 month

Full-Stack Blockchain Developer

5+

Popular candidate! Connected by 5+ companies

  • Japan, Nagoya
  • 5+ years
  • $72k ($6k / month)
  • Advanced
Core technical skills
MongoDB
PostgreSQL
Ruby
PHP
Python
Vue.js
Blockchain
Web3
Solana
TypeScript
Rust
Solidity
Node.js
React.js
Achievements / Key results
• Built from scratch NFT drop platform to mint vetted collections(frontend, backend, smart contracts) • Built user owned NFT gallery and marketplace (frontend, backend, smart contracts) • Built BI tool that houses many robust integration capabilities - integrated with Data warehouses, set up SQL queries to pull subsets of data for visualizations, delivered dashboards and datasource featuers using many languages.
Considering roles
FRONTEND
BACKEND
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Full-Stack Blockchain Engineer

    Feb 2020 - current time2 years 6 months
  • Senior Software Engineer

    Feb 2016 - Sep 20193 years 8 months
  • Software Engineer

    May 2010 - Oct 20155 years 6 months

Team Lead / Senior Software Engineer

5+

Popular candidate! Connected by 5+ companies

  • France, Paris
  • 5+ years
  • $150k ($12.5k / month)
  • Upper intermediate
Core technical skills
Kafka
Docker
Web3
Unit Testing
JavaScript
React.js
Node.js
AWS
TypeScript
Redux
Solidity
CI/CD
MongoDB
Azure
TDD/BDD
Achievements / Key results
• I designed an architecture to make a million databases communicate together. • I recruited and managed a team of 10 developers who where very grateful to me for having made them progress so much. • I helped a company to deliver a product for their clients to raise for millions of $ in ICO.
Considering roles
BACKEND
FULL STACK
Ready to work
remotely
paris
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Technical Lead

    Feb 2021 - current time1 year 6 months
  • Senior Software Engineer

    Dec 2020 - Jan 20212 months
  • Senior Developer Technical Lead

    Oct 2020 - Nov 20202 months
  • Architecte solutions

    Nov 2019 - Sep 202011 months
  • Lead Software Development Engineer

    Jul 2018 - Nov 20191 year 5 months
  • Node.JS Consultant

    May 2017 - Jul 20181 year 3 months
  • CTO

    Jun 2016 - May 20171 year
  • Freelance Node.js Consultant

    Oct 2015 - May 20168 months
  • Freelance Node.js Consultant

    Jun 2015 - Sep 20154 months
  • Consultant

    Dec 2014 - May 20156 months
  • Lead Dev / Scrum Master

    Apr 2012 - Sep 20142 years 6 months
  • Consultant NTIC puis Gérant

    Sep 2009 - Apr 20122 years 8 months
  • Assistant gestion financière (stage)

    Apr 2009 - Sep 20096 months
  • AMOA (stage)

    Apr 2008 - Sep 20086 months

Senior Blockchain Engineer

5+

Popular candidate! Connected by 5+ companies

  • Canada, Montreal
  • 5+ years
  • $170k ($14.2k / month)
  • Advanced
Core technical skills
PostgreSQL
Redux
Docker
Solana
React.js
Express.js
Go
TypeScript
Blockchain
Web3
Python
AWS
JavaScript
Rust
Solidity
Achievements / Key results
• Investigated various optimizations to Ethereum transaction throughput and gas cost for IDEX (the biggest on-chain exchange). • Designed and deployed smart contracts for tokens and ICOs including token vesting, refund vaults, and multi-signature wallets. • Build NFT Marketplace for Digital Art Project and deploy on BSC. • Automated workload provisioning using infrastructure-as-code (CloudFormation) such that white labeling would be possible.
Considering roles
FRONTEND
BACKEND
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Senior Blockchain Engineer

    Oct 2021 - current time10 months
  • Senior Software Engineer

    Aug 2019 - Oct 20212 years 3 months
  • Full Stack Engineer

    Jan 2017 - Apr 20192 years 4 months
  • Web Developer

    Feb 2013 - Nov 20163 years 10 months

Blockchain Developer

  • India, Bengaluru
  • 5+ years
  • $140k ($11.7k / month)
  • Advanced
Core technical skills
Docker
Google Cloud Serverless
Web3
Blockchain
Java
Kubernetes
Google Cloud
Algorithms / Data Structures
Go
Achievements / Key results
• Helped buildind hybrid product that uses private blockchain for storing private data and public blockchain for creating tokens using erc20 or erc721. • Monetized an asset securitization patent with successful deployment. • Actively participated in HyperLedger Foundations initiatives as a member. Developed in Hyperledger Fabric.
Considering roles
BACKEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Technical Advisor/Product Development

    Sep 2020 - Aug 20211 year
  • Product Architect

    Apr 2020 - current time2 years 4 months
  • CTO

    Feb 2018 - Aug 20202 years 7 months
  • VP-Blockchain Practice

    Feb 2018 - Aug 20191 year 7 months
  • Advisor - SAAS /Distribution &Logistics Automation/Blockchain

    Jan 2014 - Jan 20184 years 1 month
  • Consultant /Co-Founder

    Apr 2012 - Dec 20131 year 9 months
  • Technical Architect-Scale and Performance

    Oct 2010 - Jul 20121 year 10 months
  • Software Architect-Presales

    Jun 2010 - Oct 20105 months
  • Consultant Architect

    Jul 2009 - Jun 20101 year
  • Senior Technical Architect

    Dec 2007 - May 20091 year 6 months
  • Solutions Architect

    Jun 2007 - Dec 20077 months
  • Tech Lead

    Aug 2005 - Apr 20071 year 9 months

Software Engineer

  • United States, New York
  • Less than 1 year
  • $120k ($10k / month)
  • Advanced
Core technical skills
Express.js
Redux
TypeScript
Solidity
React.js
JavaScript
HTML & CSS
Web3
Blockchain
Achievements / Key results
I’ve built the following projects recently: ~ A dungeon crawling video game (Phaser, TypeScript, React) ~ An idle clicker game (HTML & CSS) ~ A single page application to track employees & jobs (React, Express, Sequelize) ~ A single page app that can write to the ETH blockchain & access information from them (React, Solidity) ~ 2 basic smart contracts & own ERC-20 tokens (Solidity)
Considering roles
FRONTEND
BACKEND
Ready to work
remotely
new york
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Showrunner, Host, Producer, Sound Guy, Etc.

    Jan 2021 - current time1 year 7 months
  • Director Of Business Development

    Jan 2020 - Jan 20222 years 1 month
  • Mentor

    Dec 2019 - current time2 years 8 months
  • Labs Program Manager

    Feb 2016 - Jan 20204 years
  • Labs Mentor

    Feb 2016 - May 20193 years 4 months
  • Founder

    Aug 2014 - Feb 20161 year 7 months

Smart Contract Developer

  • China, Jilin City
  • 5+ years
  • $120k ($10k / month)
  • Advanced
Core technical skills
Go
Solidity
Java
JavaScript
React.js
Vue.js
AWS
Google Cloud
Web3
Blockchain
HTML & CSS
Achievements / Key results
• Developed and maintained a Java-based enterprise-level solution for Network Management System. • Designed and implemented Japanese matching service, which have 100K users every month • Integrated major payment gateways like PayPal, Stripe into EC sites, which generates core revenue. • Contributed to the major GameFi product, which is listed in top ranking NFT games. • Provided leadership as a subject matter expert on hosting issues, client and staff logins
Considering roles
FULL STACK
FRONTEND
BACKEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Blockchain engineer

    Aug 2021 - Feb 20227 months
  • Blockchain Developer

    Jul 2021 - Nov 20215 months
  • Software Engineer

    Jan 2020 - Jul 20211 year 7 months
  • Software Engineer

    Oct 2018 - Jan 20201 year 4 months
  • Web Application Engineer

    May 2014 - Jan 20183 years 9 months

Senior Backend Engineer

  • India, Delhi
  • 5+ years
  • $60k ($5k / month)
  • Advanced
Core technical skills
PostgreSQL
AWS
Web3
TypeScript
Node.js
MySQL
Docker
Microservices
Distributed Systems
Redis
Kafka
RabbitMQ
Achievements / Key results
• As a founding engineer, helped startup grow from 0 to 20k MAU. • Designed the sharding architecture of the main database in company using which we were to scale services handling up to 1M requests per min. • Designed 8 microservices throughout my career. • Worked as a web3 developer in the crypto exchange to help the team integrate a few blockchains in the ecosystem. • Designed and implemented an api gateway using nginx for the whole traffic inside the company which served as a single point of entry for all external and internal traffic. This service handled millions of requests per minute.
Considering roles
BACKEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Backend engineer (Crypto exchange)

    Oct 2021 - Dec 20213 months
  • Senior Backend Engineer

    Feb 2020 - Feb 20211 year 1 month
  • Senior Backend Engineer

    Sep 2018 - Feb 20201 year 6 months
  • Backend Engineer

    Jun 2016 - Sep 20204 years 4 months