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162 anonymous candidates

Senior Blockchain Engineer

  • Sweden, Stockholm
  • 5+ years
  • $90k ($7.5k / month)
  • Advanced
Core technical skills
Solidity
Go
Rust
JavaScript
TypeScript
Achievements / Key results
- Developed a cross-trade platform supporting non-liquidity transactions, enabling seamless asset swaps without relying on traditional liquidity pools. - Developed our own Chain indexer framework and Optimized data aggregation using PostgreSQL and Redis for fast, decentralized query access.
Considering roles
FULL STACK
DEVOPS
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Senior Web3 Developer

    Aug 2022 - Mar 20252 years 8 months

Web3 Frontend Engineer

  • Nigeria, Abuja
  • 3-5 years
  • $100k ($8.3k / month)
  • Upper intermediate
Core technical skills
Blockchain
React.js
Node.js
Solidity
Web3
Achievements / Key results
I conceptualized and Built Decatron Africa's first end-to-end real estate marketplace that aims to make real estate transactions as seamless as online shopping with features like 1. Automated rental agreement, with E signatures 2. Payment gateway implementation Paystack and Monnify 3. Property, agent and client location tracking with Google Maps and Google Routes API. and used websocket for real-time location update 4. Availability scheduling, and booking system Built an international trade Settlement system that was integrated with the Internet computer Blockchain with the following features 1. A cross-chain wallet, that supports tokens converting BTC, USDC, and ETH to its Internet Computer Protocol equivalent ckBTC, ckUSDC, and ckETH, which allows users to able to use any of these tokens in the ICP ecosystem. 2. On and Offramp capabilities, from crypto to Fiat and vice versa, to achieve this we integrated with payment Flutterwave 3. Automated Promissory note, and invoice generation. 4. Merchant checkout page integration via Iframe (this feature allowed for directly loading the merchant checkout page as an Iframe on how platform) Javascript postmessage API was used for this I am a natural leader. I currently building my startup, but since it's been difficult to raise funding I decided to get a Job for a couple of months, and if I like the job maybe a year to support myself, before going back to building my startup. I conduct user interviews a lot so I do know how to align products with user needs, as you can only really learn this by experience, I think this gives me an edge over the average Software engineer If you are looking for a freak to join your startup, someone who is obsessed with getting things done, who can learn and iterate quickly, who owns the project, who thinks and works like an entrepreneur. then I might be the guy you need.
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

  • Frontend Engineer

    Sep 2024 - current time8 months

Blockchain Developer

  • Denmark, Esbjerg
  • 5+ years
  • $80k ($6.7k / month)
  • Advanced
Core technical skills
Blockchain
Solidity
JavaScript
TypeScript
Rust
Go
MySQL
MongoDB
React.js
Node.js
Achievements / Key results
I successfully developed a multi-chain web3 gaming platform, optimized smart contracts for DeFi protocols, and implemented advanced interoperability solutions using Zetachain. My contributions enhanced security, scalability, and user experience, significantly impacting project outcomes and driving innovation in the blockchain space.
Considering roles
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Blockchain and Web3 Full Stack Developer

    Nov 2018 - Dec 20202 years 2 months

Web3 Fullstack Developer

50+

Popular candidate! Connected by 50+ companies

  • Ireland, Limerick
  • 5+ years
  • $60k ($5k / month)
  • Advanced
Core technical skills
web3
Solidity
Rust
React.js
Node.js
Achievements / Key results
Senior Web3 Full Stack Software Engineer with over 8 years of experience in developing scalable web applications using React/Next.js, Node.js, and TypeScript. Skilled in both front-end and back-end development, with hands-on experience in blockchain technologies such as Bitcoin, Ethereum and Solana. Passionate about contributing to crypto data accessibility and driving innovation in the blockchain space. Proven ability to collaborate with crossfunctional teams to deliver high-quality features that enhance the user experience. Adept at working with GraphQL, cloud infrastructure (AWS, Kubernetes), and decentralized applications (dApps).
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

  • Senior Web3 Fullstack Engineer

    Jun 2021 - Dec 20243 years 7 months

  • Web3 Full Stack Developer

    Apr 2019 - Apr 20212 years 1 month

  • Full Stack Developer

    Sep 2016 - Jan 20192 years 5 months

Software Developer

  • Tunisia, Monastir
  • 1-3 years
  • $48k ($4k / month)
  • Upper intermediate
Core technical skills
TypeScript
React.js
Node.js
JavaScript
HTML & CSS
Solidity
Achievements / Key results
◦ Optimized UI performance by 30 percent, enhancing responsiveness and load times using Next.js SSR. ◦ Developed and optimized scalable HR web application using Next.js, Node.js, and MongoDB ◦ Implemented robust JWT-based authentication and role-based access control (RBAC), securing sensitive user data
Considering roles
FRONTEND
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Fullstack Software Developer Intern

    Feb 2025 - Jul 20256 months

QA

40+

Popular candidate! Connected by 40+ companies

  • Brazil, Rio de Janeiro
  • Less than 1 year
  • $3k ($250 / month)
  • Intermediate
Core technical skills
MySQL
TypeScript
Cocoapods
API testing
Solidity
Achievements / Key results
Optimised map functionality for faster rendering of 3k items • Developed new payment architecture using Stripe which generates core revenue • Designed and managed the internationalization of application for 6 languages • Reduced testing time by 5x by implementing infrastructure for writing integration tests
Considering roles
QA
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • ggfgg

    Jun 1925 - current time99 years 11 months

Smart Contract Engineer

5+

Popular candidate! Connected by 5+ companies

  • Ukraine, Odesa
  • 5+ years
  • $84k ($7k / month)
  • Upper intermediate
Core technical skills
Blockchain
Node.js
JavaScript
React.js
Web3
Solidity
Achievements / Key results
 Joined public audit contests and contributed to secure web3 ecosystems.  Optimized DEX smart contracts and GameFi interactions; successfully identified and mitigated critical exploits, contributing to a 20% reduction in security breaches during competitive hackathons.  Enhanced security protocols and identified vulnerabilities in DeFi and GameFi ecosystems; secured top 3 placements in 5+ security contests, showcasing expertise in decentralized platforms. Achievement  Found 22 issue (13 High, 9 Medium) in 10x contests, 5 times Top 10,  Gamma Stacking: Awarded Bronze Medal, Panoptic Pool: Selected standard report Participated in web3 hackathon (CrossFinance) and won 6th position in DeFi domain.
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

  • Security Researcher

    Jan 2024 - current time1 year 4 months

  • Security Researcher

    Dec 2023 - current time1 year 5 months

  • Smart Contract Engineer

    Apr 2021 - Sep 20221 year 6 months

QA

5+

Popular candidate! Connected by 5+ companies

  • Egypt, 15th of May City
  • Less than 1 year
  • $10.1k ($843 / month)
  • Elementary
Core technical skills
Usability testing
Python
Solidity
TypeScript
jQuery
Design system
Typography
Distributed Systems
Adaptive layout
Heuristic Analysis
DynamoDB
TypeORM
Ruby
Cypress
Sanity testing
Achievements / Key results
gj
Considering roles
DEVOPS
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • hkj

    Feb 5155 - current time-37557 months

test

  • United States, San Jose Mineta International Airport
  • 3-5 years
  • $36k ($3k / month)
  • Upper intermediate
Core technical skills
Node.js
Solidity
SASS
PostgreSQL
Achievements / Key results
Uh
Ready to work
remotely

Senior Blockchain Engineer

5+

Popular candidate! Connected by 5+ companies

  • United States, Antwerp
  • 5+ years
  • $90k ($7.5k / month)
  • Upper intermediate
Core technical skills
React.js
Node.js
Solidity
Go
Rust
Achievements / Key results
THORChain Protocol, Unified Bridge Custom mev bots
Considering roles
FULL STACK
DATA SCIENCE
FRONTEND
BACKEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Blockchain Engineer

    Jul 2021 - Jan 20231 year 7 months

1212

5+

Popular candidate! Connected by 5+ companies

  • India, 43rd Mile
  • 1-3 years
  • $12.1k ($1k / month)
  • Pre intermediate
Core technical skills
PostgreSQL
Solidity
Smoke testing
Docker
MongoDB
Achievements / Key results
4312
Considering roles
FULL STACK
BACKEND
UI/UX DESIGN
MOBILE
QA
DEVOPS
FRONTEND
PM
DATA SCIENCE
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • sgfd

    Mar 5355 - current time-39958 months

qa

5+

Popular candidate! Connected by 5+ companies

  • Malta, Fgura
  • 1-3 years
  • $2.4k ($200 / month)
  • Elementary
Core technical skills
Qa
ActiveMQ
Redux
RxSwift
HTML & CSS
Node.js
JavaScript
React.js
MySQL
TypeScript
API testing
manual testing
SASS
AWS
Mobile testing
Solidity
Achievements / Key results
sdfsdfsdfsdf sd fs fsd fds fa
Considering roles
QA
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • dsa

    Feb 2011 - current time14 years 3 months

dvadv

5+

Popular candidate! Connected by 5+ companies

  • Poland, Łódź
  • 3-5 years
  • $5k ($417 / month)
  • Pre intermediate
Core technical skills
CI/CD
Design thinking
manual testing
MongoDB
Solidity
Achievements / Key results
wrf
Considering roles
DEVOPS
FRONTEND
MOBILE
BACKEND
QA
UI/UX DESIGN
DATA SCIENCE
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • qa tester

    Mar 2022 - current time3 years 2 months

Junior

5+

Popular candidate! Connected by 5+ companies

  • Poland, Kraków
  • 1-3 years
  • $4.5k ($375 / month)
  • Pre intermediate
Core technical skills
Android
MongoDB
Docker
Redux
Solidity
Achievements / Key results
• Redesigned existing system and decreased maintainability costs by 30%
Considering roles
QA
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Junior

    Jan 2025 - current time4 months

hbb

5+

Popular candidate! Connected by 5+ companies

  • Canada, Vancouver International Airport
  • 5+ years
  • $8157.2k ($679.8k / month)
  • Advanced
Core technical skills
SASS
Solidity
Java
Achievements / Key results
Hv b

Blockchain Developer

10+

Popular candidate! Connected by 10+ companies

  • Finland, Hamina
  • 5+ years
  • $80k ($6.7k / month)
  • Advanced
Core technical skills
Rust
Go
Python
Solidity
Solana
Achievements / Key results
Sr. Blockchain Engineer and Web3 Fullstack Developer with over 7 years of hands-on experience in Fintech / Defi / AI / DEPIN / Game spaces, utilizing serveral programming languages and frameworks such as Solidity, JS/TS, Golang, Rust, React, Web3.js/Ethers.js, Hardhat, AWS/GCP. With deep understanding in Zero-Knowledge Proofs, Cryptography, Tokenomics, Security, Cosmos SDK, Polygon CDK and various Consensus Protocols.
Considering roles
BACKEND
DEVOPS
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Blockchain developer

    Apr 2022 - Dec 20242 years 9 months

qa

5+

Popular candidate! Connected by 5+ companies

  • Switzerland, Switzerland
  • 5+ years
  • $24k ($2k / month)
  • Advanced
Core technical skills
Node.js
SASS
Solidity
Java
AWS
Achievements / Key results
Hahahaha

sss

  • Poland, Wschowa
  • 3-5 years
  • $120k ($10k / month)
  • Pre intermediate
Core technical skills
manual testing
SASS
AWS
Mobile testing
Solidity
Achievements / Key results
fgfvdcz
Considering roles
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • ssssss

    Jun 2000 - current time24 years 11 months

Qa

  • Japan, Fukuoka
  • 5+ years
  • $240k ($20k / month)
  • Advanced
Core technical skills
API testing
SASS
Solidity
Python
TypeScript
Achievements / Key results
Brut fff

QA

  • United Kingdom, Bristol
  • 3-5 years
  • $1200k ($100k / month)
  • Upper intermediate
Core technical skills
JavaScript
React.js
HTML & CSS
MySQL
TypeScript
Node.js
API testing
manual testing
SASS
AWS
Mobile testing
Solidity
Python
Java
PostgreSQL
Redux
Web3
Smoke testing
MongoDB
Docker
Achievements / Key results
Quqyishs
View 142 more candidates