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246 anonymous candidates

csc

  • Germany, Frankfurt am Main
  • 1-3 years
  • $20k ($1.7k / month)
  • Intermediate
Core technical skills
JavaScript
React Native
Human Interface Guidelines
Blockchain
Functional testing
Achievements / Key results
svsdvdf
Considering roles
PM
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • vsavd

    Jan 2025 - current time1 year 6 months

Blockchain Developer

  • India, Pollachi
  • Less than 1 year
  • $25k ($2.1k / month)
  • Upper intermediate
Core technical skills
Solidity
MySQL
Blockchain
Python
Web3
Achievements / Key results
Built and deployed a decentralized lottery protocol on Ethereum using Chainlink VRF V2 Plus and Chainlink Automation with a full Foundry test suite Integrated smart contracts into a production blockchain storage platform during internship at Xinetee, handling real on-chain product registration and checkpoint recording Completed Cyfrin Updraft blockchain curriculum, one of the most rigorous smart contract development programs available
Considering roles
QA
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Blockchain Development Intern

    Aug 2025 - Jan 20266 months

csac

  • Job experience is missing
  • English level is missing
Considering roles
PM
DEVOPS
Core technical skills
Blockchain
React Native
Human Interface Guidelines
Cypress
SDLC

Some fascinating position

  • Netherlands, Eindhoven
  • 5+ years
  • $121.5k ($10.1k / month)
  • Advanced
Core technical skills
Docker
manual testing
Blockchain
Java
Web3
Achievements / Key results
Some fascinating Achievements
Considering roles
BACKEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • `

    Aug 1929 - Mar 19311 year 8 months

&₽

  • India, Chandigarh
  • 1-3 years
  • $2.4k ($200 / month)
  • Pre intermediate
Core technical skills
Design thinking
Express.js
Django
Flask
Black box testing
jQuery
SwiftUI
Flutter
UIKit
Smoke testing
qa
User interviews
Redux
Ruby
Blockchain
Achievements / Key results
Jxjzj
Considering roles
DEVOPS
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Q

    Feb 2000 - current time26 years 5 months

fullstack/frontend developer

5+

Popular candidate! Connected by 5+ companies

  • Poland, Mikołów
  • 1-3 years
  • $36k ($3k / month)
  • Advanced
Core technical skills
React.js
Node.js
TypeScript
OOP
Blockchain
Firebase
MongoDB
Achievements / Key results
Built and launched a personal SaaS product with active paying customers Independently delivered end-to-end features in a production environment Implemented multiple robust solutions to complex problems in production systems Contributed to key technical decision-making and architectural direction
Considering roles
FULL STACK
FRONTEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Full-stack engineer

    Aug 2024 - current time1 year 11 months

QA

5+

Popular candidate! Connected by 5+ companies

  • Canada, Toronto
  • 1-3 years
  • $20k ($1.7k / month)
  • Intermediate
Considering roles
FULL STACK
Core technical skills
qa
Python
PostgreSQL
SQL Destinct
MS SQL Server
Hibernate
PHP
Design thinking
Blockchain
Algorithms / Data Structures
Machine Learning
Ad Hoc testing
Typography
Angular.js
Dhhrhdhdhdhrhrhrhhrhrhrhrhrdjdhdhdhdjrjrjrjjfjrjrjfjfjfjfjfjjdjfjfjfjfjjfjdufurjrjrjjfjfjfjjrfjdjjzkskakakskjdjfjtjfjdjdjdjdjjdjdjdjdjdjdjfjtjgjfjfjfjfjfjfhfhfhfhfhdhdhdjdhdhfhfhfjfhfhfhfhfhfjrj
Ready to work
remotely

java

15+

Popular candidate! Connected by 15+ companies

  • United States, West Palm Beach
  • 1-3 years
  • $33k ($2.8k / month)
  • Pre intermediate
Core technical skills
Django
PHP
GraphQL
Blockchain
Design thinking
Achievements / Key results
dsdadfj
Considering roles
PM
DEVOPS
FULL STACK
FRONTEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • e

    Feb 2009 - current time17 years 5 months

Software Engineer

25+

Popular candidate! Connected by 25+ companies

  • Kazakhstan, Almaty
  • 3-5 years
  • $80k ($6.7k / month)
  • Advanced
Core technical skills
Node.js
React.js
Docker
Testing
Typescript
API TESTING
Mobile testing
Angular.js
PostgreSQL
Express.js
Web3
Redis
Kafka
React Native
Blockchain
Achievements / Key results
Operating 29 production blockchain nodes across 4 consensus paradigms (EVM, Solana, Bitcoin, Substrate) — private internal infrastructure, details under NDA Built Arctic Pay (arcticpay.app) — live USDT→USD virtual card platform processing $10K+ on-chain with 80+ active users and zero double-charge incidents Built Vneshka (fr-vneshka.com) — real-time freelance marketplace with 893 registered users and arbitration queue system Built Prime Electronics (prime-electronics.ru) — e-commerce platform with 12K-product catalog and Excel bulk import/export Shipped 10+ production platforms in 3 years as founding engineer at a 4-engineer product studio Own backend + infrastructure end-to-end on every project (PostgreSQL → NestJS → Next.js → Docker → CI/CD → VPS) Integrated 7 payment providers (Stripe, YooKassa, T-Bank, Pagsmile, HGROSH, Telegram Stars, TronWeb) with HMAC validation + idempotency + state machines Cut manual deployment time 90% via GitHub Actions CI/CD + Docker multi-stage builds Led architectural decisions (stack selection, schema design, infrastructure) across all Spark Studio platforms Diagnosed and fixed version-level blockchain client bugs in production (Moonriver mapping-sync stall, Lodestar Fulu fork, OP-Stack derivation bottleneck)
Considering roles
DEVOPS
FRONTEND
BACKEND
FULL STACK
MOBILE
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Full-stack Engineer

    Mar 2023 - current time3 years 4 months

QA

10+

Popular candidate! Connected by 10+ companies

  • Italy, Assisi
  • Less than 1 year
  • $56k ($4.7k / month)
  • Pre intermediate
Core technical skills
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Dfggg
PostgreSQL
HTML & CSS
Blockchain
Achievements / Key results
sdvsdv
Considering roles
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • qa

    Jan 2006 - current time20 years 6 months

HR

25+

Popular candidate! Connected by 25+ companies

  • United Kingdom, London
  • 1-3 years
  • $120k ($10k / month)
  • Intermediate
Core technical skills
Functional testing
GraphQL
Angular.js
Blockchain
Usability testing
Achievements / Key results
• I have a pet project with more than 60k users • Delivered / took part in ~40 iOS/macOS apps in 7 years • Each time I start on a project I end up leading it • Leading a mobile team of a product with 1M+ DAU
Considering roles
DEVOPS
FULL STACK
FRONTEND
MOBILE
Ready to work
remotely

HR

20+

Popular candidate! Connected by 20+ companies

  • United Kingdom, London
  • 1-3 years
  • $120k ($10k / month)
  • Pre intermediate
Core technical skills
Functional testing
GraphQL
Angular.js
Blockchain
Usability testing
Achievements / Key results
AAAAAAAA
Considering roles
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • QA

    Feb 1999 - current time27 years 5 months

Senior Backend Engineer

20+

Popular candidate! Connected by 20+ companies

  • Ukraine, Lviv
  • 5+ years
  • $84k ($7k / month)
  • Upper intermediate
Core technical skills
Node.js
TypeScript
PostgreSQL
RabbitMQ
Blockchain
web3
Achievements / Key results
- Built a multi-chain trading backend from scratch supporting 7 blockchains and 15+ DEX integrations as the sole backend engineer. - Designed blockchain indexers with <200ms latency and achieved 0-slot transaction inclusion on Solana. - Adopted AI-driven development workflow, achieving 3x faster feature delivery and 5x reduction in debugging time.
Considering roles
BACKEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Senior Backend Engineer

    Jun 2023 - current time3 years 1 month

  • Backend Developer

    Nov 2018 - May 20234 years 7 months

Senior Full Stack Enginner | Web3 & Blockchain

50+

Popular candidate! Connected by 50+ companies

  • Australia, Melbourne
  • 5+ years
  • $96k ($8k / month)
  • Advanced
Core technical skills
React.js
Solidity
Node.js
web3
Blockchain
Achievements / Key results
- Successfully launched a token sale launchpad, raising $250K during the token sale. - Developed a spin game that increased user engagement by 900%. - Built Web3 infrastructure from the ground up, including seamless on-chain payment systems. - Integrated third-party Web3 libraries such as Privy and Li.Fi, and automated trading workflows on the platform. - Implemented a staking and governance platform, introducing innovative earning models such as stake-to-earn and burn-to-earn.
Considering roles
FULL STACK
FRONTEND
MOBILE
BACKEND
PM
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Senior Full Stack Engineer

    Feb 2024 - Jan 20262 years

  • Back End Engineer

    Jul 2023 - Jan 20247 months

  • Back End Engineer & Smart Contract Developer

    Apr 2023 - Aug 20235 months

  • Blockchain Full Stack Engineer

    Dec 2021 - Mar 20231 year 4 months

  • Smart Contract Developer

    Mar 2020 - Dec 20211 year 10 months

  • Softare Engineer (MERN)

    Jan 2019 - Jan 20201 year 1 month

  • Front End Developer

    Jul 2017 - Mar 20191 year 9 months

Security Engineer

15+

Popular candidate! Connected by 15+ companies

  • Argentina, Buenos Aires
  • 1-3 years
  • $30k ($2.5k / month)
  • Upper intermediate
Core technical skills
Rust
Solidity
Python
Blockchain
manual testing
Achievements / Key results
- Developed 3 own tools for security researching - Provided more than 40 solo penetration tests - Helped 4 DeFi projects become more secure before deployment
Considering roles
QA
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Security Researcher

    Jul 2025 - current time1 year

  • Penetration tester

    Jan 2022 - current time4 years 6 months

QA

35+

Popular candidate! Connected by 35+ companies

  • Ukraine, Kovel'
  • 1-3 years
  • $7.2k ($600 / month)
  • Pre intermediate
Core technical skills
manual testing
HTML & CSS
React.js
TypeScript
Docker
Automation testing
Blockchain
PHP
JavaScript
Smoke testing
Functional testing
Solidity
PostgreSQL
jQuery
CI/CD
Achievements / Key results
qqq
Considering roles
DEVOPS
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • QA

    Mar 2025 - current time1 year 4 months

QA engineer 0024

10+

Popular candidate! Connected by 10+ companies

  • Brazil, Foz do Iguaçu
  • Less than 1 year
  • $12k ($1000 / month)
  • Elementary
Core technical skills
Smoke testing
Node.js
Blockchain
MySQL
Flutter
Achievements / Key results
Achievements 0024
Considering roles
QA
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Role 0024

    Jan 2020 - current time6 years 6 months

QA

15+

Popular candidate! Connected by 15+ companies

  • Netherlands, Amsterdam
  • 1-3 years
  • $30k ($2.5k / month)
  • Upper intermediate
Core technical skills
SASS
manual testing
Functional testing
Blockchain
Usability testing
Achievements / Key results
Hello world
Considering roles
QA
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • QA

    Mar 2099 - current time-872 months

QA

25+

Popular candidate! Connected by 25+ companies

  • United States, New York
  • 1-3 years
  • $28.8k ($2.4k / month)
  • Pre intermediate
Core technical skills
Solidity
Smoke testing
Mobile testing
Functional testing
Blockchain
Achievements / Key results
tyu
Considering roles
FULL STACK
QA
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • QA

    Jan 2009 - current time17 years 6 months

qa

25+

Popular candidate! Connected by 25+ companies

  • Ukraine, Lviv
  • 3-5 years
  • $100k ($8.3k / month)
  • Intermediate
Core technical skills
manual testing
RxSwift
Qa
ReactiveSwift
Docker
Human Interface Guidelines
ActiveMQ
Mobile testing
Blockchain
qqq
jQuery
MS SQL Server
Swift
Web3
Functional testing
Achievements / Key results
• Optimised map functionality for faster rendering of 3k items
Considering roles
QA
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • dj

    Feb 2016 - current time10 years 5 months
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