Sign InSign up

Candidates

Select roles
Type or select technologies
$0 - $120000+
English level

Candidate's location

Timezone: search by timezone the candidate is located in. Country/City: search by country or city the candidate is located in or willing to work in.

Oops! Seems you haven’t signed up

  • Use flexible search filters
  • Search among full list of engineers
  • Stay on top of new engineers
Free sign upSign In

99 anonymous candidates

Full Stack Web3 Developer

  • India, Bengaluru
  • 1-3 years
  • $42k ($3.5k / month)
  • Upper intermediate
Core technical skills
Solidity
React.js
Node.js
MongoDB
Rust
TypeScript
JavaScript
API testing
Blockchain
Web3
Achievements / Key results
Improved Performance Metrics: Boosted the performance of in defi application, increasing the performance rating from 40 to 70 through optimization techniques and efficient code refactoring. Real-Time System Implementation: Designed and developed a Points and Score system for the ecosystem using Node.js, Express.js, MongoDB, and ethers.js, enabling real-time updates based on blockchain events
Considering roles
FRONTEND
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Frontend Web3 Devloper

    Apr 2024 - current time10 months

The coolest developer

  • United Kingdom, Cambridge
  • 5+ years
  • $215.5k ($18k / month)
  • Upper intermediate
Core technical skills
JavaScript
React.js
HTML & CSS
TypeScript
MySQL
Node.js
API testing
SASS
manual testing
AWS
Solidity
Mobile testing
Python
Java
Redux
PostgreSQL
Web3
Docker
MongoDB
Smoke testing
GraphQL
Blockchain
Vue.js
Functional testing
Angular.js
React Native
Express.js
CI/CD
PHP
Spring
Usability testing
Regression testing
Rust
Hibernate
Responsive design
Android
Swift
Sanity testing
Bootstrap
Qa
Wireframing
Firebase
SwiftUI
Flutter
Automation testing
C++
SDLC
DevOps
Solana
Unit Testing
Test Case Design
Ruby
Algorithms / Data Structures
RxSwift
Go
Mobile Design App
Human Interface Guidelines
Design system
Kotlin
Black box testing
Achievements / Key results
Dog
Ready to work
remotely

Middle Frontend developer

  • United Kingdom, Cambridge
  • 3-5 years
  • $200k ($16.7k / month)
  • Advanced
Core technical skills
React.js
JavaScript
HTML & CSS
TypeScript
MySQL
Node.js
API testing
SASS
manual testing
AWS
Solidity
Mobile testing
Python
Java
Redux
PostgreSQL
Web3
Docker
MongoDB
Smoke testing
GraphQL
Blockchain
Vue.js
Functional testing
Angular.js
React Native
Express.js
CI/CD
Achievements / Key results
Lots of money
Ready to work
remotely

Eius dolor est earum

  • Poland, Kraków
  • Less than 1 year
  • $50k ($4.2k / month)
  • Elementary
Core technical skills
RxJava
Express.js
Redux
RxSwift
Black box testing
Blockchain
Achievements / Key results
kjujhikvsjbdkjmhwabkhbdlqJW
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 2020 - current time5 years

qa

5+

Popular candidate! Connected by 5+ companies

  • India, Hyderabad
  • 1-3 years
  • $123.1k ($10.3k / month)
  • Pre intermediate
Core technical skills
Docker
Smoke testing
Blockchain
JavaScript
React.js
Achievements / Key results
cgjh
Considering roles
MOBILE
QA
Ready to work
remotely
i̇stanbul
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • qa

    Feb 2020 - current time5 years

Senior DevOps Engineer

  • United States, Chicago
  • 5+ years
  • $216k ($18k / month)
  • Advanced
Core technical skills
Java
Docker
Blockchain
C++
Microservices
Achievements / Key results
I do not remember already
Considering roles
DEVOPS
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Senior DevOps engineer

    Jan 1999 - current time26 years 1 month

qaa

20+

Popular candidate! Connected by 20+ companies

  • Ukraine, Kyiv
  • 1-3 years
  • $17k ($1.4k / month)
  • Upper intermediate
Core technical skills
manual testing
GraphQL
SASS
Blockchain
React Native
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
Considering roles
FULL STACK
QA
Ready to work
remotely
würzburg

Developer

  • United States, San Francisco
  • 1-3 years
  • $24k ($2k / month)
  • Pre intermediate
Core technical skills
TypeScript
Docker
HTML & CSS
Blockchain
Functional testing
Achievements / Key results
d
Considering roles
FULL STACK
Ready to work
remotely
san francisco
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • ssddff

    Mar 2012 - current time12 years 11 months

Senior Full stack developer

25+

Popular candidate! Connected by 25+ companies

  • Georgia, Tbilisi
  • 5+ years
  • $60k ($5k / month)
  • Upper intermediate
Core technical skills
React.js
Redux
MongoDB
Node.js
Blockchain
web3
Solidity
Solana
PHP
Laravel
JavaScript
C#
HTML & CSS
TypeScript
Achievements / Key results
As a senior full-stack web developer, here are some examples of key results you might have helped your product achieve and how you contributed to them: 1. Improved Application Performance Key Result: Reduced server response time by 30%, leading to a 20% increase in user retention. Contribution: Optimized backend queries and implemented caching mechanisms using Redis. Refactored code to follow SOLID principles, reducing technical debt. Conducted performance testing and identified bottlenecks using tools like Postman and JMeter. 2. Enhanced User Engagement Key Result: Increased daily active users (DAUs) by 40% within three months of launching a new feature. Contribution: Designed and developed an intuitive and responsive user interface using React/Angular and Tailwind CSS. Implemented gamification features (e.g., leaderboards, achievements) to encourage engagement. Collaborated with the product team to fine-tune user experience through A/B testing. 5. Strengthened Security and Compliance Key Result: Passed third-party security audits and achieved 100% GDPR compliance. Contribution: Implemented OWASP-recommended practices for secure coding. Added two-factor authentication (2FA) and role-based access controls (RBAC). Developed scripts to anonymize and encrypt sensitive user data in backups. 3. Accelerated Feature Delivery Key Result: Delivered 15+ new features in six months, cutting release cycles by 50%. Contribution: Built reusable components to speed up frontend development in React and Angular. Set up CI/CD pipelines using GitHub Actions and Jenkins to automate testing and deployments. Implemented API-first development, ensuring seamless collaboration between frontend and backend teams. 4. Boosted Revenue Through Scalability Key Result: Scaled the platform to handle 5x traffic growth, contributing to a 25% revenue increase. Contribution: Migrated monolithic architecture to microservices using Node.js and Docker. Integrated load balancers and auto-scaling groups in AWS for high availability. Conducted stress testing to ensure stability during peak loads.
Considering roles
FULL STACK
FRONTEND
MOBILE
BACKEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Senior Blockchain Developer

    Jan 2023 - Nov 20241 year 11 months

  • Senior Mobile Developer

    Jun 2020 - Dec 20222 years 7 months

  • Senior Web Developer

    Jun 2019 - May 20201 year

At quod sit vel ani 666

5+

Popular candidate! Connected by 5+ companies

  • Ukraine, Ukrainka
  • 1-3 years
  • $50k ($4.2k / month)
  • Intermediate
Core technical skills
TypeScript
Cocoapods
Blockchain
MongoDB
Firebase
Achievements / Key results
Aliquid anim provide
Considering roles
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • senjor full stack

    Feb 1980 - current time45 years

wqw

5+

Popular candidate! Connected by 5+ companies

  • India, Tiruchirappalli
  • 3-5 years
  • $20k ($1.7k / month)
  • Intermediate
Core technical skills
Hibernate
Design thinking
Blockchain
GraphQL
PHP
Achievements / Key results
213
Considering roles
FRONTEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • 323

    Mar 1990 - current time34 years 11 months

fdgfds

5+

Popular candidate! Connected by 5+ companies

  • Netherlands, Amsterdam
  • Less than 1 year
  • $2.4k ($200 / month)
  • Elementary
Core technical skills
GraphQL
Blockchain
Angular.js
manual testing
React.js
Achievements / Key results
adawd
Considering roles
PM
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • awde

    Mar 1940 - current time84 years 11 months

234423

  • Cameroon, Dschang
  • 1-3 years
  • $6k ($500 / month)
  • Intermediate
Core technical skills
Dfggg
MongoDB
SwiftUI
Functional testing
Blockchain
Achievements / Key results
erwewe
Considering roles
DEVOPS
MOBILE
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • edsd

    Mar 2001 - current time23 years 11 months

dgf

  • France, Lyon
  • Less than 1 year
  • $216k ($18k / month)
  • Elementary
Core technical skills
GraphQL
Blockchain
Angular.js
Functional testing
React Native
Achievements / Key results
adawddddddddddddddddddadawdad
Considering roles
DEVOPS
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • adad

    Jan 2000 - Mar 202626 years 3 months

  • adawd

    Feb 1940 - Mar 19455 years 2 months

  • dfg

    Mar 1926 - Apr 19271 year 2 months

Senior Web Engineer

15+

Popular candidate! Connected by 15+ companies

  • Japan, Shimotsuke
  • 3-5 years
  • $36k ($3k / month)
  • Advanced
Core technical skills
React.js
Node.js
MongoDB
HTML & CSS
PHP
Laravel
Blockchain
Solidity
Solana
Web3
Angular.js
Landing page design
Achievements / Key results
E-commerce Store Development ● Description: Developed a fully functional e-commerce store for a retail client using Shopify, including theme customization and app integration. ● Technologies Used: Shopify, Liquid, HTML, CSS, JavaScript ● Impact: Increased online sales by 50% within the first quarter post-launch, improving user experience with an intuitive interface and streamlined checkout process. Shopify App Integration ● Description: Integrated third-party apps (such as payment gateways and inventory management tools) into existing Shopify stores for enhanced functionality. ● Technologies Used: Shopify API, JavaScript, Liquid ● Impact: Improved operational efficiency for clients, leading to a 25% reduction in time spent on inventory management and reporting tasks. Shopify Store Optimization ● Description: Conducted performance optimization for an existing Shopify store, including speed enhancements and SEO improvements. ● Technologies Used: Shopify, Liquid, Google Analytics ● Impact: Increased site speed by 40% and improved search rankings, resulting in a 30% increase in organic traffic.
Considering roles
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Full-Stack Web Developer

    Jan 2021 - Sep 20243 years 9 months

  • Software Engineer

    Jan 2019 - May 20212 years 5 months

  • Junior Web Developer

    Jun 2017 - Dec 20181 year 7 months

Full Stack Blockchain Engineer

15+

Popular candidate! Connected by 15+ companies

  • Japan, Tokyo
  • 5+ years
  • $60k ($5k / month)
  • Advanced
Core technical skills
Blockchain
React.js
Solidity
Node.js
MongoDB
Achievements / Key results
Certificated by MANGTAS, Working with Fungible & Non-Fungible tokens on EVM and Solana. Extensive experience in developing DEX, DEFI, DApp - Launching Stable Coins, Mint & Burn, Swapping, Staking, Market Platforms, Bridge, Proxy Contracts, Yield Farming. Building Smart Contracts using Solidity & Rust and Building Websites using Web3.js & EtherJS.
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

  • Blockchain Full Stack Developer

    Mar 2022 - current time2 years 11 months

Full-stack blockchain developer

15+

Popular candidate! Connected by 15+ companies

  • Hong Kong, Hong Kong
  • 5+ years
  • $60k ($5k / month)
  • Upper intermediate
Core technical skills
Blockchain
React.js
Express.js
Solana
Rust
MySQL
Achievements / Key results
trading bot, trading platform, web3, mern-stack
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

  • Senior web3 developer

    Apr 2019 - current time5 years 10 months

1

5+

Popular candidate! Connected by 5+ companies

  • Italy, Florence
  • 1-3 years
  • $2.4k ($200 / month)
  • Pre intermediate
Core technical skills
AWS
manual testing
Java
GraphQL
Blockchain
Achievements / Key results
1
Considering roles
DEVOPS
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • 1

    Feb 2000 - current time25 years

Blockchain Developer

10+

Popular candidate! Connected by 10+ companies

  • India, Cuttack
  • 1-3 years
  • $45k ($3.8k / month)
  • Intermediate
Core technical skills
Solidity
JavaScript
Blockchain
Web3
Node.js
Achievements / Key results
Developed Secure and Scalable Smart Contracts: Designed and deployed multiple Solidity smart contracts with a focus on DeFi applications, ensuring robust performance and security measures through detailed testing using Hardhat and Foundry. Led Blockchain Integrations for DApps: Built decentralized applications that integrate seamlessly with Ethereum-based smart contracts, employing libraries such as ethers.js and web3.js to enhance functionality and user experience. Innovated with Chainlink VRF and CCIP: Successfully integrated Chainlink VRF for on-chain randomness and CCIP for cross-chain compatibility, enabling secure and versatile DeFi applications across multiple blockchain ecosystems. Built and Deployed Real-Time Transaction Reward System: Developed a reward system using Delta-X tokens for each wallet transaction, incorporating Alchemy WSS for wallet tracking and ensuring smooth cross-chain operations. Enhanced Blockchain and API Performance: Created efficient and low-latency APIs using REST and GraphQL, optimizing data access for high-performance blockchain environments using technologies like PostgreSQL, MongoDB, and Redis. Contributed to Winning Hackathon Project: Collaborated with team METABLOCKERS on the R2W3-II challenge to create Fluid Pass, a project enabling event access through crypto-based payments with Superfluid SDK, achieving a successful deployment and securing the top prize. Ensured Code Quality and Security Standards: Maintained high standards of code quality across blockchain and backend modules, implementing rigorous testing and security checks to safeguard DeFi applications against vulnerabilities. Ambassador for Web3 and Blockchain Community Growth: Actively contributed to the web3.js ambassador program by creating educational content, including blogs and guides, to support emerging blockchain developers in the community.
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 Developer

    Nov 2023 - Aug 202410 months

  • Freelance Smart Contract Developer

    Jul 2023 - Dec 20236 months

  • Web3 Developer

    Mar 2023 - Jul 20235 months

  • Blockchain Developer

    May 2022 - Nov 20227 months

QA engineer

  • Poland, Kraków
  • 1-3 years
  • $5.8k ($481 / month)
  • Pre intermediate
Core technical skills
Blockchain
MySQL
User interviews
TypeScript
SASS
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • q;cknjn

    Feb 2021 - current time4 years
View 79 more candidates