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186 anonymous candidates

qa

  • United States, Kansas City
  • 3-5 years
  • $120k ($10k / month)
  • Upper intermediate
Core technical skills
TypeScript
MySQL
HTML & CSS
JavaScript
Node.js
API testing
manual testing
Mobile testing
SASS
AWS
Solidity
PostgreSQL
Java
Python
Redux
React.js
Achievements / Key results
Err
Ready to work
remotely

Senior Web3 Full Stack Engineer

  • Switzerland, Zürich
  • 5+ years
  • $60k ($5k / month)
  • Advanced
Core technical skills
React.js
Solidity
Rust
Go
JavaScript
Web3
Redux
Testing
Typescript
API TESTING
Node.js
Express.js
PostgreSQL
MongoDB
Redis
Achievements / Key results
Innovative and results-driven Senior Web3 & Full Stack Engineer with 7+ years of experience in blockchain development, decentralized applications (dApps), and full-stack engineering. Expertise in Next.js, Nest.js, Solidity, and Web3 integrations, building high-performance applications with a strong focus on security, scalability, and user experience. Proven track record in smart contract development, gas optimizations, DeFi protocols, and multi-chain interoperability. Adept at leading engineering teams, architecting secure, upgradeable smart contracts, and optimizing Web3 authentication workflows. Passionate about decentralized finance (DeFi), NFTs, and Layer 2 scaling solutions, continuously integrating the latest advancements in the blockchain ecosystem to drive technical excellence and innovation.
Considering roles
FULL STACK
FRONTEND
BACKEND
MOBILE
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Senior Web3 & Full Stack Engineer

    Jul 2022 - current time3 years 1 month

  • Senior Blockchain Engineer

    Apr 2020 - Jun 20222 years 3 months

  • Frontend Engineer

    Aug 2018 - Mar 20201 year 8 months

QA Engineer

  • Ukraine, Kyiv
  • Less than 1 year
  • $12k ($1000 / month)
  • Advanced
Core technical skills
JavaScript
HTML & CSS
React.js
MySQL
TypeScript
Node.js
API testing
manual testing
Mobile testing
SASS
AWS
Solidity
PostgreSQL
Java
Python
Redux
Achievements / Key results
Achievements
Ready to work
remotely

qa

  • United States, United States
  • 3-5 years
  • $12k ($1000 / month)
  • Advanced
Core technical skills
Java
Solidity
Mobile testing
API testing
Achievements / Key results
Qwetyjjsrf

Senior

5+

Popular candidate! Connected by 5+ companies

  • Ukraine, Kyiv
  • Less than 1 year
  • $216k ($18k / month)
  • Upper intermediate
Core technical skills
Bootstrap
CI/CD
Solidity
Laravel
Django
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
DEVOPS
FULL STACK
PM
FRONTEND
MOBILE
BACKEND
QA
UI/UX DESIGN
DATA SCIENCE
Ready to work
remotely
dingolfing
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • kamlkd

    May 2025 - Jun 3023998 years 2 months

  • Senior

    Sep 2022 - Aug 20264 years

Backend dev

  • Portugal, Porto
  • Less than 1 year
  • $24k ($2k / month)
  • Advanced
Core technical skills
Web3
Solidity
React.js
C++
Python
Achievements / Key results
I produced a honeypot to monitor the companies resources and logs everything and used grafana for metrics. Everything was detailed in a overleaf report.
Considering roles
DEVOPS
BACKEND
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Security Analyst

    Jan 2023 - Dec 20231 year

Web3 Full Stack Developer

  • United States, Belgium
  • 3-5 years
  • $96k ($8k / month)
  • Advanced
Core technical skills
Solidity
TypeScript
Go
React.js
C#
Achievements / Key results
•Led the design & secure implementation of new DeFi protocol Solidity/Rust smart contracts and the liquidation engine, proposing capital efficiency and robust yield farming via formal verification. •Optimized critical cross-chain infrastructure (4+ EVM chains & 20+ lending protocols), including price oracles and keepers/relayers, ensuring real-time data feeds and multi-chain liquidity for the protocol. •Developed & refined advanced quantitative models for collateral ratios, interest rates, and MEV protection, maximizing capital efficiency through DEX analytics.
Considering roles
FULL STACK
DEVOPS
BACKEND
DATA SCIENCE
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Lead Blockchain Engineer

    Nov 2022 - Dec 20242 years 2 months

gds

  • Ukraine, Lviv
  • 1-3 years
  • $0k ($2 / month)
  • Upper intermediate
Core technical skills
API testing
Solidity
Redux
Mobile testing
Achievements / Key results
Оорп
Ready to work
lviv

Software Engineer

  • Cameroon, Douala
  • 5+ years
  • $20k ($1.7k / month)
  • Intermediate
Core technical skills
Express.js
React.js
React Native
Node.js
AWS
Python
PostgreSQL
Solidity
Blockchain
Firebase
Achievements / Key results
• Created a Back-end script for email campaign • Developed a mobile application for a ride sharing company • Created NFT collection with smart contract for company • Created telegram and discord bot for some customer • Integrated PayPal and Stripe payment for e-commerce website • Created API for a company to let front-end developer to connect on it a make user experience great
Considering roles
FULL STACK
BACKEND
FRONTEND
MOBILE
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Full Stack Developer

    Aug 2024 - Apr 20259 months

  • CTO

    Feb 2023 - May 20241 year 4 months

  • Web3 developer

    Oct 2021 - Aug 202211 months

Blockchain Developer

5+

Popular candidate! Connected by 5+ companies

  • Poland, Lublin
  • 5+ years
  • $60k ($5k / month)
  • Advanced
Core technical skills
Blockchain
React.js
TypeScript
JavaScript
Node.js
Express.js
Solidity
Rust
Solana
Python
Django
Flask
C#
.Net
ASP.NET
Achievements / Key results
Blockchain, AI, and Full-Stack Engineer with 6+ years of experience delivering production-grade smart contracts, DeFi protocols, and AI-powered trading platforms across EVM and Solana ecosystems. Successfully improved trading workflow efficiency by 25%, platform scalability by 35%, and gas optimization by 12% through innovative system designs. Specialized in Solidity, Rust, MERN stack, and AI model deployment on AWS, with a strong focus on scalability, security, and performance optimization in Web3-native infrastructure. -> Make the trading platform like pump.fun -> Fork the Uniswap and customize it with adding new swap fee -> Solana staking & farming mechanism
Considering roles
FULL STACK
FRONTEND
BACKEND
DATA SCIENCE
PM
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Full-Stack AI Engineer

    Mar 2024 - current time1 year 5 months

  • Blockchain Developer

    Sep 2022 - Feb 20241 year 6 months

  • Smart Contract Engineer

    Jun 2018 - Aug 20224 years 3 months

Blockchain Engineer

  • India, Bhopal
  • 1-3 years
  • $20k ($1.7k / month)
  • Upper intermediate
Core technical skills
TypeScript
Rust
React.js
Solidity
Web3
JavaScript
Achievements / Key results
yes i worked at sevral of startup
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

  • member

    Jan 2024 - current time1 year 7 months

senior

  • India, Chennai
  • 1-3 years
  • $3k ($250 / month)
  • Elementary
Core technical skills
RxSwift
Blockchain
Redux
Solidity
Smoke testing
Achievements / Key results
DC
Considering roles
DEVOPS
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • D

    Jan 2000 - current time25 years 7 months

j

  • India, Ujjain
  • 1-3 years
  • $4.6k ($380 / month)
  • Pre intermediate
Core technical skills
Solidity
Functional testing
Blockchain
PHP
GraphQL
Achievements / Key results
b
Considering roles
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • g

    Mar 2015 - current time10 years 5 months

b

5+

Popular candidate! Connected by 5+ companies

  • Vietnam, Vietnam
  • 5+ years
  • $1.8k ($148 / month)
  • Upper intermediate
Core technical skills
AWS
Solidity
Achievements / Key results
b

Vghg

  • Italy, Rome
  • 3-5 years
  • $40k ($3.3k / month)
  • Upper intermediate
Core technical skills
Solidity
Functional testing
Design thinking
User interviews
Flask
Achievements / Key results
Sdff
Considering roles
FRONTEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Def

    Feb 2020 - current time5 years 6 months

QA

5+

Popular candidate! Connected by 5+ companies

  • India, Chennai
  • 1-3 years
  • $20k ($1.7k / month)
  • Intermediate
Core technical skills
Docker
MongoDB
Solidity
Node.js
Android
Achievements / Key results
sfesfsf
Considering roles
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • asdasdcs

    Feb 2025 - current time6 months

rgdr

5+

Popular candidate! Connected by 5+ companies

  • Spain, Cádiz
  • 1-3 years
  • $25.7k ($2.1k / month)
  • Intermediate
Core technical skills
CI/CD
Docker
Redux
Solidity
Node.js
Achievements / Key results
vhmgf
Considering roles
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • ophoi

    Mar 2001 - current time24 years 5 months

Senior

5+

Popular candidate! Connected by 5+ companies

  • Croatia, Krk
  • 1-3 years
  • $90k ($7.5k / month)
  • Advanced
Core technical skills
manual testing
SASS
Mobile testing
JavaScript
Solidity
Achievements / Key results
w
Considering roles
FRONTEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • senior

    Jan 2000 - current time25 years 7 months

Senior Web3 Engineer

15+

Popular candidate! Connected by 15+ companies

  • United States, Tallahassee
  • 5+ years
  • $96k ($8k / month)
  • Advanced
Core technical skills
Blockchain
Web3
Solidity
JavaScript
TypeScript
Achievements / Key results
Participated in building Rings protocol, which is the first defi application to allow the trade of perpetual options on chain without relying on oracles, raised $2M TVL.
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 Software Engineer

    Jul 2022 - current time3 years 1 month

Junior QA engineer

5+

Popular candidate! Connected by 5+ companies

  • Ukraine, Kyiv
  • 1-3 years
  • $8.4k ($700 / month)
  • Pre intermediate
Core technical skills
Solidity
AWS
jQuery
manual testing
Automation testing
Achievements / Key results
лотвло
Considering roles
DEVOPS
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • asd

    Feb 2021 - current time4 years 6 months
View 166 more candidates