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90 anonymous candidates

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

Software Engineer

  • Thailand, Sattahip
  • 5+ years
  • $120k ($10k / month)
  • Intermediate
Core technical skills
Rust
TypeScript
JavaScript
Web3
Blockchain
Achievements / Key results
Software Engineer with 10+ years of experience in building scalable distributed systems. Expertise in blockchain technologies, particularly in Rust and TypeScript development.
Considering roles
BACKEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Software Engineer

    Mar 2022 - Jul 20242 years 5 months

  • Development Team Lead

    Oct 2018 - Apr 20212 years 7 months

  • Lead Backend Developer

    Oct 2014 - May 20183 years 8 months

bb

  • Spain, Valencia
  • Less than 1 year
  • $20k ($1.7k / month)
  • Elementary
Core technical skills
Java
Bootstrap
Firebase
Hibernate
Usability testing
Blockchain
Mobile Design App
Web3
Black box testing
Ruby
Kubernetes
MongoDB
Distributed Systems
TDD/BDD
Achievements / Key results
k
Considering roles
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • jjj

    Jan 2020 - current time5 years 7 months

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

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

Senjor

5+

Popular candidate! Connected by 5+ companies

  • Poland, Kraków
  • Less than 1 year
  • $200k ($16.7k / month)
  • Intermediate
Core technical skills
Design thinking
Qa
Web3
Mobile testing
Usability testing
Achievements / Key results
Easy
Considering roles
QA
Ready to work
remotely
kraków
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Big BOSS

    Jan 1927 - Jan 2030103 years 1 month

Senior Frontend Engineer

5+

Popular candidate! Connected by 5+ companies

  • Kazakhstan, Astana
  • 3-5 years
  • $65k ($5.4k / month)
  • Intermediate
Core technical skills
React.js
TypeScript
Node.js
Web3
Redux
Rust
Achievements / Key results
I fit in the startups and dynamic teams, hypothesis testing, MVPs. I thrive in environments of uncertainty, adapting to changing goals and responsibilities, rapidly building prototypes from scratch, testing assumptions, and exploring new ideas. I am young so there are no problems that I can't solve and no technologies that I can't master
Considering roles
FRONTEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Senior Frontend Engineer

    Jun 2023 - current time2 years 2 months

  • Fullstack Developer

    May 2022 - Aug 20224 months

  • Frontend Engineer

    Jan 2022 - May 20231 year 5 months

  • Frontend Engineer

    Sep 2021 - Mar 20227 months

Senior All Engineer

15+

Popular candidate! Connected by 15+ companies

  • United States, Chicago
  • 3-5 years
  • $24k ($2k / month)
  • Upper intermediate
Core technical skills
API testing
RxSwift
Mobile testing
PostgreSQL
Redux
Web3
React.js
Vue.js
Functional testing
React Native
manual testing
Usability testing
Responsive design
Express.js
Docker
Achievements / Key results
Optimised map functionality for faster rendering of 3k items
Considering roles
DEVOPS
FULL STACK
MOBILE
QA
UI/UX DESIGN
FRONTEND
PM
Ready to work
remotely
chicago
frankfurt am main
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Senior QA

    Feb 2001 - current time24 years 6 months

PM

5+

Popular candidate! Connected by 5+ companies

  • Ukraine, Lviv
  • 1-3 years
  • $6k ($500 / month)
  • Intermediate
Core technical skills
Testing
Typescript
Data Science
JavaScript
Web3
CI/CD
Achievements / Key results
Redesigned existing system and decreased maintainability costs by 30% • Worked as tech lead in a high-load low-latency system that could serve over 200qps per cluster • Engineered many own tools like notification engine, performance tool for REST, database client. • Default unit-test code coverage on products I work on is 75%.
Considering roles
PM
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • pm

    Oct 2025 - current time-2 months

asd

5+

Popular candidate! Connected by 5+ companies

  • Netherlands, Amsterdam
  • 3-5 years
  • $5k ($417 / month)
  • Intermediate
Core technical skills
MongoDB
MySQL
Web3
Node.js
Qa
Achievements / Key results
asd
Considering roles
FRONTEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • asd

    Mar 2021 - current time4 years 5 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

l;mklnjk

5+

Popular candidate! Connected by 5+ companies

  • Japan, Tokyo
  • 1-3 years
  • $5k ($417 / month)
  • Advanced
Core technical skills
SASS
Web3
PostgreSQL
Java
manual testing
Achievements / Key results
fgh
Considering roles
FRONTEND
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • sdfsdf

    Mar 2004 - current time21 years 5 months

Qa engineer

5+

Popular candidate! Connected by 5+ companies

  • Ukraine, Kyiv
  • 1-3 years
  • $7.2k ($600 / month)
  • Intermediate
Core technical skills
JavaScript
React.js
HTML & CSS
MySQL
TypeScript
Node.js
API testing
manual testing
SASS
Mobile testing
AWS
Solidity
PostgreSQL
Java
Python
Redux
Smoke testing
Web3
Docker
MongoDB
Blockchain
Functional testing
GraphQL
Achievements / Key results
Achievements: Participated in testing a mobile and web app for a job tracking platform. Successfully found and reported critical bugs in production. Integrated TestRail with Jira to improve test coverage.
Ready to work
remotely
kyiv

front-end engineer ~ UX/UI designer

10+

Popular candidate! Connected by 10+ companies

  • France, Marseille
  • 1-3 years
  • $54k ($4.5k / month)
  • Upper intermediate
Core technical skills
React.js
Web3
Adobe
JavaScript
Responsive design
Achievements / Key results
Hello, I'm Pauline 👾 I am a designer and web developer based in Paris and Marseille, France. I have great interest in software development and human/computer interactions. I am detail-oriented and enthusiastic about storytelling and designing creative experiences that intersect art, music, and blockchain.
Considering roles
FRONTEND
UI/UX DESIGN
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Front End Engineer

    Feb 2025 - Mar 20252 months

  • Remote Front-end Engineer

    Dec 2022 - Feb 20252 years 3 months

  • Full-Stack Engineer

    May 2022 - Jun 20222 months

  • Head of digital art sales

    Jun 2021 - Sep 20214 months

Senior Frontend Engineer

25+

Popular candidate! Connected by 25+ companies

  • Ukraine, Dnipro
  • 5+ years
  • $120k ($10k / month)
  • Upper intermediate
Core technical skills
TypeScript
React.js
JavaScript
Node.js
Web3
Achievements / Key results
Covered code with unit-test. Did code review. Led FE team. Developed MVP. Developed high-load web app with over 500k users a month.
Considering roles
FRONTEND
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Senior Frontend Engineer

    Dec 2024 - current time8 months

  • Tech Lead

    Apr 2024 - Jan 202510 months

  • Senior Frontend Engineer

    Dec 2022 - Apr 20241 year 5 months

  • Senior Frontend Engineer

    Jan 2021 - Dec 20222 years

  • Frontend Engineer

    Jan 2019 - Jan 20212 years 1 month

  • Fullstack Engineer

    Oct 2017 - Jan 20191 year 4 months

Rust

15+

Popular candidate! Connected by 15+ companies

  • France, Paris
  • 1-3 years
  • $40k ($3.3k / month)
  • Advanced
Core technical skills
Rust
TypeScript
Python
Solana
Web3
Achievements / Key results
I led the development of a cross-platform desktop application that was showcased at the Paris 2024 Olympics. I volunteered at the ZK Summit in Lisbon, a major event focused on zero-knowledge proofs and blockchain technology. Later, I also contributed to the SheFi Summit in Bangkok.
Considering roles
FULL STACK
DATA SCIENCE
FRONTEND
QA
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • Fullstack Engineer

    Sep 2023 - Aug 20241 year

Web3 Frontend Engineer

20+

Popular candidate! Connected by 20+ companies

  • Nigeria, Abuja
  • 3-5 years
  • $100k ($8.3k / month)
  • Upper intermediate
Core technical skills
Blockchain
React.js
Node.js
Solidity
Web3
Achievements / Key results
I conceptualized and Built Decatron Africa's first end-to-end real estate marketplace that aims to make real estate transactions as seamless as online shopping with features like 1. Automated rental agreement, with E signatures 2. Payment gateway implementation Paystack and Monnify 3. Property, agent and client location tracking with Google Maps and Google Routes API. and used websocket for real-time location update 4. Availability scheduling, and booking system Built an international trade Settlement system that was integrated with the Internet computer Blockchain with the following features 1. A cross-chain wallet, that supports tokens converting BTC, USDC, and ETH to its Internet Computer Protocol equivalent ckBTC, ckUSDC, and ckETH, which allows users to able to use any of these tokens in the ICP ecosystem. 2. On and Offramp capabilities, from crypto to Fiat and vice versa, to achieve this we integrated with payment Flutterwave 3. Automated Promissory note, and invoice generation. 4. Merchant checkout page integration via Iframe (this feature allowed for directly loading the merchant checkout page as an Iframe on how platform) Javascript postmessage API was used for this I am a natural leader. I currently building my startup, but since it's been difficult to raise funding I decided to get a Job for a couple of months, and if I like the job maybe a year to support myself, before going back to building my startup. I conduct user interviews a lot so I do know how to align products with user needs, as you can only really learn this by experience, I think this gives me an edge over the average Software engineer If you are looking for a freak to join your startup, someone who is obsessed with getting things done, who can learn and iterate quickly, who owns the project, who thinks and works like an entrepreneur. then I might be the guy you need.
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

  • Frontend Engineer

    Sep 2024 - current time11 months

Smart Contract Engineer

30+

Popular candidate! Connected by 30+ companies

  • Ukraine, Odesa
  • 5+ years
  • $84k ($7k / month)
  • Upper intermediate
Core technical skills
Blockchain
Node.js
JavaScript
React.js
Web3
Solidity
Achievements / Key results
 Joined public audit contests and contributed to secure web3 ecosystems.  Optimized DEX smart contracts and GameFi interactions; successfully identified and mitigated critical exploits, contributing to a 20% reduction in security breaches during competitive hackathons.  Enhanced security protocols and identified vulnerabilities in DeFi and GameFi ecosystems; secured top 3 placements in 5+ security contests, showcasing expertise in decentralized platforms. Achievement  Found 22 issue (13 High, 9 Medium) in 10x contests, 5 times Top 10,  Gamma Stacking: Awarded Bronze Medal, Panoptic Pool: Selected standard report Participated in web3 hackathon (CrossFinance) and won 6th position in DeFi domain.
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

  • Security Researcher

    Jan 2024 - current time1 year 7 months

  • Security Researcher

    Dec 2023 - current time1 year 8 months

  • Smart Contract Engineer

    Apr 2021 - Sep 20221 year 6 months

FullStack Developer

20+

Popular candidate! Connected by 20+ companies

  • Ukraine, Odesa
  • 3-5 years
  • $66k ($5.5k / month)
  • Upper intermediate
Core technical skills
Vue.js
React.js
React Native
Node.js
Web3
PostgreSQL
MongoDB
Firebase
Achievements / Key results
• Developed interactive and responsive front-end interfaces using Vue.js, React.js, and Next.js, tailored for gambling platforms. • Built secure and scalable server-side systems using Node.js, Express.js, and NestJS to handle high volumes of real-time data and transactions. • Integrated real-time communication features with Socket.io to support live gaming experiences. • Worked with databases (MongoDB, PostgreSQL) to ensure efficient, secure data storage and retrieval, supporting gaming logic and user activity tracking. • Developed gaming-related interactive visual elements with Pixi.js and Three.js to enhance the user experience. • Ensured compliance with industry standards and regulations for secure transactions and data handling in gambling applications. • Collaborated with cross-functional teams to optimize gaming performance, ensure smooth gameplay, and deliver a top-tier user experience.
Considering roles
FRONTEND
FULL STACK
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • FullStack Developer

    Jan 2021 - current time4 years 7 months

20+

Popular candidate! Connected by 20+ companies

  • Poland, Kraków
  • Less than 1 year
  • $12k ($1000 / month)
  • Elementary
Core technical skills
Mobile testing
Web3
MongoDB
Blockchain
Objective-C
Achievements / Key results
csac
Considering roles
PM
FULL STACK
DEVOPS
MOBILE
FRONTEND
BACKEND
QA
UI/UX DESIGN
Ready to work
remotely
Experience details are hidden. To make them visible, send a message to the candidate.

Experience

  • dvs

    Dec 2028 - current time-40 months
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