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227 anonymous candidates

qa

  • 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 1 month

solana blockchain developer

  • Türkiye, Van
  • Less than 1 year
  • $48k ($4k / month)
  • Upper intermediate
Core technical skills
Solana
Blockchain
Rust
React.js
JavaScript
Achievements / Key results
Designed and implemented multiple Solana smart contracts using Rust + Anchor, including vault, staking, and escrow patterns, with full test coverage and production-ready account layouts. Built end-to-end DeFi prototypes (on-chain programs + client integration), focusing on correctness, edge cases, and safe token handling using SPL and Token-2022.
Considering roles
FULL STACK
FRONTEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • blockchain developer

    Mar 2024 - current time2 years

Junior QA Engineer

  • Ukraine, Kyiv
  • Less than 1 year
  • $12k ($1000 / month)
  • Pre intermediate
Core technical skills
HTML & CSS
Python
Blockchain
Design thinking
Ad Hoc 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
Considering roles
QA
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Manager

    Feb 2023 - Feb 20252 years 1 month

Senior QA-Manager

5+

Popular candidate! Connected by 5+ companies

  • Ukraine, Kyiv
  • Less than 1 year
  • $36k ($3k / month)
  • Pre intermediate
Core technical skills
Hibernate
PHP
Blockchain
Design thinking
Human Interface Guidelines
Achievements / Key results
123
Considering roles
FRONTEND
FULL STACK
DEVOPS
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • qa

    Mar 1925 - current time101 years

Senior QA-Manager

  • United States, Los Angeles
  • 5+ years
  • $36k ($3k / month)
  • Advanced
Core technical skills
Human Interface Guidelines
PHP
Blockchain
Hibernate
GraphQL
Achievements / Key results
123
Considering roles
MOBILE
Ready to work
remotely
london
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Senior

    Mar 2006 - Apr 2222216 years 2 months

sdf

5+

Popular candidate! Connected by 5+ companies

  • Germany, Düsseldorf
  • 1-3 years
  • $6k ($500 / month)
  • Elementary
Core technical skills
GraphQL
Functional testing
Angular.js
Blockchain
React Native
Achievements / Key results
sdf
Considering roles
DEVOPS
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • dfd

    Jan 2000 - current time26 years 2 months

Senior Web3 Engineer

  • Malaysia, Kampar
  • 5+ years
  • $60k ($5k / month)
  • Advanced
Core technical skills
React.js
React Native
Node.js
Python
TypeScript
JavaScript
Blockchain
Web3
Solana
AWS
Vue.js
Angular.js
Java
PostgreSQL
Achievements / Key results
Built and scaled high-performance frontend applications using React and TypeScript, improving user experience and supporting steady user growth across Web3 and fintech products. Led development of reusable UI components and frontend architecture, reducing development time and improving consistency across multiple features and teams. Integrated APIs, blockchain data, and wallet functionality, enabling secure and reliable crypto transactions in production environments.
Considering roles
FRONTEND
FULL STACK
MOBILE
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Senior Web3 Trading Engineer

    Jul 2024 - current time1 year 8 months

  • Senior Web3 Engineer

    Apr 2023 - Jul 20241 year 4 months

  • Blockchain Game Developer

    Feb 2022 - Mar 20231 year 2 months

  • Fullstack Developer

    Mar 2018 - Feb 20224 years

test

10+

Popular candidate! Connected by 10+ companies

  • India, Hyderabad
  • 1-3 years
  • $210k ($17.5k / month)
  • Intermediate
Core technical skills
HTML & CSS
React.js
Usability testing
MongoDB
GraphQL
Python
JavaScript
Objective-C
Node.js
Blockchain
Java
Solidity
TypeScript
manual testing
Redux
Achievements / Key results
---
Considering roles
DEVOPS
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • rr

    Mar 2003 - current time23 years

Frontend Blockchain Developer <​Next, React​> // <​Solidity​>

  • Moldova, Chișinău
  • 1-3 years
  • $48k ($4k / month)
  • Upper intermediate
Core technical skills
React.js
Web3
Blockchain
JavaScript
Solidity
Achievements / Key results
1. Enabled full cross-chain DeFi functionality and improved user reach • Result: The product evolved from single-chain usage to a multi-chain DeFi platform, supporting swaps, bridges, deposits, and transfers across EVM, Cosmos, Solana, and Bitcoin ecosystems. • My contribution: - Integrated LiFi SDK and built a custom LiFi Widget fork for cross-chain swaps and bridges - Implemented Orderly cross-chain deposit flows - Built Wormhole-based bridges (Ethereum ↔ Polygon ↔ Base) - Ensured safe transaction execution using Safe SDK multisig 2. Improved product reliability, security, and scalability • Result: Reduced operational risks and improved stability for production usage. • My contribution: - Built secure Nest.js proxy endpoints to protect API keys and sensitive integrations - Designed transaction flows with account abstraction and intent-based execution - Refactored and optimized frontend architecture using Vite, Zustand, and modern Web3 tooling (Wagmi, Viem) 3. Increased user adoption through better UX and performance • Result: More intuitive onboarding and smoother user journeys for non-technical users. • My contribution: - Delivered full redesigns (KIMA Explorer, Hub, Claim, Bridge) focusing on clarity and performance - Implemented SSR-safe wallet flows in Next.js - Built responsive, production-grade UI using Tailwind, SCSS, MUI, Framer Motion 4. Enabled new revenue streams and business features • Result: The product expanded beyond pure DeFi into payments, staking, and incentives. • My contribution: - Implemented crypto credit-card top-up logic (Mobilum integration) - Built staking & incentive platforms with MLM-style reward logic and admin dashboards - Developed admin panels to manage campaigns, staking pools, and bridge operations 5. Accelerated delivery and reduced time-to-market • Result: Faster feature releases with fewer regressions. • My contribution: - Took ownership of features end-to-end (architecture → implementation → integration) - Worked closely with backend and protocol teams to unblock releases - Proactively improved developer experience and reduced technical debt
Considering roles
FRONTEND
Ready to work
remotely
chișinău
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Frontend Blockchain Developer

    Apr 2024 - Jan 20261 year 10 months

  • Frontend x Solidity Blockchain Developer

    Feb 2023 - Apr 20241 year 3 months

AI Engineer

10+

Popular candidate! Connected by 10+ companies

  • Greece, Athens
  • 5+ years
  • $36k ($3k / month)
  • Advanced
Core technical skills
Blockchain
React.js
Python
Machine Learning
Node.js
Achievements / Key results
• Worked on internal software systems and technical support tools • Contributed to system reliability and operational efficiency
Considering roles
FULL STACK
BACKEND
MOBILE
DEVOPS
DATA SCIENCE
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Software Engineer

    Feb 2017 - Nov 201710 months

asd

  • Netherlands, Amsterdam
  • 5+ years
  • $56.5k ($4.7k / month)
  • Pre intermediate
Core technical skills
GraphQL
Functional testing
Angular.js
Blockchain
React Native
Achievements / Key results
a
Considering roles
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • a

    Mar 4234 - current time-26496 months

Manual Senior QA Engineer

15+

Popular candidate! Connected by 15+ companies

  • Sudan, Kumia
  • 3-5 years
  • $100k ($8.3k / month)
  • Advanced
Core technical skills
API testing
manual testing
Functional testing
Blockchain
Angular.js
Achievements / Key results
1
Considering roles
QA
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • CEO

    Feb 1984 - current time42 years 1 month

a

  • Netherlands, Amsterdam
  • Less than 1 year
  • $12.3k ($1k / month)
  • Pre intermediate
Core technical skills
GraphQL
Angular.js
Blockchain
React Native
Java
Achievements / Key results
a
Considering roles
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • a

    Mar 2001 - current time25 years

a

5+

Popular candidate! Connected by 5+ companies

  • United States, Asheville
  • 1-3 years
  • $16k ($1.3k / month)
  • Intermediate
Core technical skills
GraphQL
Functional testing
Angular.js
Blockchain
React Native
Achievements / Key results
sadsfds
Considering roles
DEVOPS
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • sd

    Jan 2015 - current time11 years 2 months

12

  • United States, Asheville
  • 1-3 years
  • $16k ($1.3k / month)
  • Elementary
Core technical skills
GraphQL
Functional testing
Angular.js
Blockchain
React Native
Usability testing
Achievements / Key results
asdsa
Considering roles
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • s

    Jan 2015 - current time11 years 2 months

Manual Senior QA Engineer

15+

Popular candidate! Connected by 15+ companies

  • Job experience is missing
  • English level is missing
Considering roles
QA
Core technical skills
API testing
manual testing
Blockchain
Java
Angular.js

jjjj

5+

Popular candidate! Connected by 5+ companies

  • Poland, Kraków
  • 1-3 years
  • $5.7k ($473 / month)
  • Upper intermediate
Core technical skills
Testing
Typescript
API TESTING
Mobile testing
Ad-hoc testing
Angular.js
Express.js
Smoke testing
Blockchain
Achievements / Key results
sdfghjkl;
Considering roles
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Full

    Mar 2022 - current time4 years

Qa engineer

15+

Popular candidate! Connected by 15+ companies

  • India, G.G.Nadukuda
  • 1-3 years
  • $3k ($250 / month)
  • Pre intermediate
Considering roles
DEVOPS
FRONTEND
FULL STACK
Core technical skills
Human Interface Guidelines
Django
Functional testing
RxCocoa
Blockchain
Ready to work
remotely
yhu

Senior SRE/DevOps/Platform Engineer

20+

Popular candidate! Connected by 20+ companies

  • Montenegro, Podgorica
  • 5+ years
  • $100k ($8.3k / month)
  • Intermediate
Considering roles
DEVOPS
Core technical skills
AWS
Kubernetes
Python
Automation testing
Web3
Google Cloud
Blockchain
CI/CD
Ready to work
remotely

Senior Web3 and Mobile Engineer

20+

Popular candidate! Connected by 20+ companies

  • United States, Jamestown
  • 3-5 years
  • $100k ($8.3k / month)
  • Advanced
Core technical skills
Rust
React.js
React Native
Web3
Blockchain
Node.js
JavaScript
TypeScript
HTML & CSS
Swift
Vue.js
Angular.js
Express.js
MongoDB
MySQL
Achievements / Key results
Key Results Achieved: Shipped cross-platform mobile features that supported the product’s main user workflows. Improved system performance and stability across frontend, backend, and blockchain layers. Enabled a smooth on-chain experience, resulting in higher user trust and retention. My Contribution: Developed mobile screens, API integrations, and real-time features. Built backend services, optimized database queries, and improved API performance. Implemented Web3 modules: wallet connection, token handling, contract interaction, transaction UX. Collaborated with designers and engineers to ensure consistent quality and fast delivery.
Considering roles
FULL STACK
FRONTEND
MOBILE
BACKEND
DATA SCIENCE
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Web3 Game Engineer

    Sep 2022 - Dec 20224 months

  • Sr. Web3 Engineer

    Dec 2020 - Apr 20254 years 5 months

  • Web3 Mobile/Full stack Engineer

    Mar 2018 - Oct 20202 years 8 months
View 207 more candidates