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131 anonymous candidates

ushsysy

  • Kiribati, Kiribati
  • 5+ years
  • $885.3k ($73.8k / month)
  • Advanced
Core technical skills
SASS
JavaScript
React.js
Node.js
API testing
HTML & CSS
MySQL
TypeScript
manual testing
AWS
Solidity
Mobile testing
Python
Java
Redux
PostgreSQL
Achievements / Key results
hddf
Ready to work
remotely

qa

  • Germany, Frankfurt
  • 1-3 years
  • $33.3k ($2.8k / month)
  • Pre intermediate
Core technical skills
Node.js
Solidity
Redux
Docker
MongoDB
CI/CD
Achievements / Key results
Ullamco et ut ullamc
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 time4 years 11 months

Consequatur pariatur

  • Mexico, Guadalajara
  • 1-3 years
  • $55.6k ($4.6k / month)
  • Pre intermediate
Core technical skills
PostgreSQL
Node.js
TDD/BDD
Solidity
Redux
Docker
Achievements / Key results
q
Considering roles
BACKEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Magna dolor eum moll

    Feb 1992 - current time32 years 11 months

gfghh

  • United States, San Francisco
  • Less than 1 year
  • $2.4k ($200 / month)
  • Elementary
Core technical skills
SASS
manual testing
AWS
Solidity
API testing
Node.js
MySQL
TypeScript
Achievements / Key results
adad
Considering roles
DEVOPS
FULL STACK
FRONTEND
MOBILE
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • ad

    Feb 1945 - current time79 years 11 months

Senior Full stack developer

15+

Popular candidate! Connected by 15+ 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

ed

  • Germany, Frankfurt
  • 3-5 years
  • $33.3k ($2.8k / month)
  • Pre intermediate
Core technical skills
Node.js
Solidity
Redux
Docker
MongoDB
CI/CD
Achievements / Key results
sdc
Considering roles
FRONTEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • rt

    Apr 2022 - current time2 years 9 months

hhhh

5+

Popular candidate! Connected by 5+ companies

  • France, Colmar
  • 1-3 years
  • $4.5k ($378 / month)
  • Intermediate
Core technical skills
Typography
Hibernate
CI/CD
Wireframing
Solidity
Achievements / Key results
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Considering roles
DEVOPS
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • jjjjjjj

    Feb 1960 - current time64 years 11 months

Candidate

  • Ukraine, Kyiv
  • 1-3 years
  • $12k ($1000 / month)
  • Pre intermediate
Core technical skills
MySQL
PostgreSQL
Docker
MongoDB
Smoke testing
React.js
HTML & CSS
Python
Mobile testing
API testing
Node.js
SASS
manual testing
AWS
Solidity
JavaScript
TypeScript
Java
Redux
Web3
GraphQL
Usability testing
Functional testing
Regression testing
Sanity testing
Automation testing
Unit Testing
Test Case Design
Black box testing
Kubernetes
User Testing
Cross-browser Testing
Non functional testing
Ad Hoc testing
Acceptance testing
Testing
mobfile testing
Testing
Typescript
API TESTING
Mobile testing
Testing
Typescript
API TESTING
Mobile testing
Ad-hoc testing
e2e testing
Achievements / Key results
Jsjsjjd
Ready to work
remotely

At quod sit vel ani

5+

Popular candidate! Connected by 5+ companies

  • Romania, 23 August
  • 1-3 years
  • $50k ($4.2k / month)
  • Pre intermediate
Core technical skills
Human Interface Guidelines
JavaScript
manual testing
TypeScript
Solidity
Achievements / Key results
43434
Considering roles
DEVOPS
MOBILE
BACKEND
DATA SCIENCE
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • 23

    Mar 1960 - current time64 years 10 months

Qui cillum et ea omn

  • India, Ukhimath
  • 3-5 years
  • $50k ($4.2k / month)
  • Pre intermediate
Core technical skills
Human Interface Guidelines
Docker
CI/CD
Solidity
Redux
Achievements / Key results
sas
Considering roles
FULL STACK
MOBILE
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • ewewe

    Apr 1986 - current time38 years 9 months

sesf

  • Spain, Barcelona
  • Less than 1 year
  • $2.4k ($200 / month)
  • Pre intermediate
Core technical skills
SASS
manual testing
AWS
Solidity
Mobile testing
Achievements / Key results
Aut fugiat voluptat
Considering roles
DEVOPS
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • nfgnf

    Feb 2001 - current time23 years 11 months

  • sdf

    Feb 2001 - Mar 2000-10 months

gfghh

  • Poland, Płock
  • Less than 1 year
  • $2.4k ($200 / month)
  • Pre intermediate
Core technical skills
SASS
manual testing
AWS
Solidity
Mobile testing
Achievements / Key results
Aut qui ea dignissim
Considering roles
QA
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • vh

    Feb 2000 - current time24 years 11 months

HR

  • Spain, Granada
  • Less than 1 year
  • $54.8k ($4.6k / month)
  • Elementary
Core technical skills
Automation testing
Solidity
Wireframing
Kafka
API testing
Achievements / Key results
gfhf
Considering roles
BACKEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • gf

    Mar 2024 - current time10 months

really

  • United States, Fort Lauderdale
  • Less than 1 year
  • $4.2k ($350 / month)
  • Elementary
Core technical skills
MySQL
API testing
JavaScript
PostgreSQL
Redux
Java
Mobile testing
Solidity
manual testing
SASS
Achievements / Key results
Do j GG mk in GB j GG RG b
Ready to work
remotely

java

  • Poland, Katowice
  • 3-5 years
  • $8001.3k ($666.8k / month)
  • Advanced
Core technical skills
Solidity
MySQL
Achievements / Key results
Hij
Ready to work
remotely

Junior QA

5+

Popular candidate! Connected by 5+ companies

  • United States, Fort Myers
  • Less than 1 year
  • $5k ($417 / month)
  • Intermediate
Core technical skills
manual testing
API testing
Solidity
HTML & CSS
React.js
Achievements / Key results
t
Considering roles
QA
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • qa

    Mar 2025 - Apr 20261 year 2 months

Senior Web Engineer

10+

Popular candidate! Connected by 10+ 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

10+

Popular candidate! Connected by 10+ 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 10 months

Blockchain Developer

5+

Popular candidate! Connected by 5+ 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

gd

  • Argentina, Justo Daract
  • 1-3 years
  • $1.6k ($133 / month)
  • Upper intermediate
Core technical skills
TypeScript
SASS
API testing
Angular.js
Vue.js
Blockchain
GraphQL
Smoke testing
MongoDB
Docker
Web3
PostgreSQL
Redux
Java
Python
Mobile testing
Solidity
Achievements / Key results
Skansen
View 111 more candidates