UpstaffSign up
Jan Michek
Czech Republic (UTC+01:00)
Created AtUpstaffer since September, 2026
Book a Call Download Profile PDF

Jan Michek — Web3 Fullstack Engineer

Expertise in Full Stack Web (14.0 yr.), Smart Contract (1.5 yr.).

 Last verified on September, 2026

Core Skills

Solidity
Solidity
1 yr.
Foundry
Viem
WAGMI
Web3.js
Web3.js

AI Tools & Assistants

Cursor

Bio Summary

  • Senior Web3 Fullstack Engineer with 14 years of experience, specializing in Solidity, Foundry, Viem, Wagmi, and Ethers.js for dApp development.
  • Led development of aescan.io, scaling it to 10K monthly users with advanced on-chain data visualizations and dashboards.
  • Proven track record in building omnichain NFT lending platforms and integrating Web3 wallet connectivity and smart contract interactions.
  • Experienced in agile methodologies, cross-functional collaboration, and delivering e2e-tested releases in blockchain environments.
  • Computer science education with an Associate's Degree and ongoing advanced Web3 Solidity Bootcamp training.

Technical Skills

Programming Languages Solidity
AI & Machine Learning ollama
JavaScript Frameworks Remix
JavaScript Libraries and Tools TanStack Query, Vite, Web3.js, Zod
UI Frameworks, Libraries, and Browsers HTML, PostCSS, Storybook, Tailwind CSS
Cloud Platforms, Services & Computing Vercel
Methodologies, Paradigms and Patterns Agile, FDD
Deployment, CI/CD & Administration Ansible, CI/CD
Third Party Tools / IDEs / SDK / Services Cursor
QA, Test Automation, Security Cypress, Vitest
Blockchain and Decentralized Software Etherscan, Foundry, RainbowKit, Viem, WAGMI
SDK / API and Integrations GraphQL, RESTful API
UI/UX/Wireframing Responsive Design, UI/UX
Logging and Monitoring Sentry
Mail / Network Protocols / Data transfer WebSockets
Other Technical Skills Claude Code, CSS animations

Work Experience

Frontend Engineer - LiveSystems (Asset Workflow Efficiency Improvement)

Duration: 11/2025 - 07/2026

Summary:

  • Project focused on improving asset workflow efficiency by architecting a dynamic UI system using user interaction data
  • The goal was to enhance maintenance planning workflow for equipment tracking and maintenance

Responsibilities:

  • Architected a dynamic UI system based on user interaction data.
  • Collaborated with UX designers to improve maintenance planning workflow.

Web3 Frontend Engineer - æternity Blockchain (aescan.io Blockchain Explorer)

Duration: 03/2022 - 05/2025

Summary:

  • Led the development of aescan
  • io, an open-source blockchain explorer providing on-chain data visualizations, statistical dashboards, and responsive interfaces
  • The project aimed to provide users with detailed insights into blockchain data

Responsibilities:

  • Led development of on-chain data visualizations and dashboards.
  • Collaborated with contract developers and stakeholders in agile environment.
  • Delivered consistent end-to-end tested releases.

Web3 Frontend Engineer - PWN Finance (Omnichain NFT Lending Platform)

Duration: 09/2021 - 02/2022

Summary: Developed the frontend for an omnichain NFT lending platform supporting multi-asset collateral, enhancing DeFi user experience with wallet connectivity and smart contract interactions.

Responsibilities:

  • Built frontend for NFT lending platform.
  • Engineered Web3 wallet connectivity and smart contract interactions.
  • Participated in technical design and product roadmap as part of cross-functional team.

Frontend Engineer - NICE (Conversational Agents UX Interface)

Duration: 04/2020 - 08/2021

Summary: Developed a UX-heavy interface for conversational agents prior to the large language model era, collaborating with backend teams and designers to deliver aligned product features.

Responsibilities:

  • Built UX-heavy interface for conversational agents.
  • Collaborated with backend teams and designers in agile sprints.
  • Mentored a junior developer.

Frontend Developer - Perfect Planet (Classical Music Concerts and Foundation Websites)

Duration: 01/2019 - 12/2019

Summary: Developed high-aesthetic apps and presentation websites for diverse clients, including a platform for organizing classical music concerts at home and a site for a music foundation.

Responsibilities:

  • Developed apps and websites enhancing brand engagement.
  • Launched vaznyzajem.cz for organizing classical music concerts.
  • Delivered kalabisruzickova.cz for a music foundation.

Frontend Developer - Keboola (ETL Data Analytics Platform UI Redesign)

Duration: 04/2017 - 12/2018

Summary: Improved user experience for an ETL data analytics platform through a major UI redesign involving over 50 components, partnering with data scientists to visualize complex datasets.

Responsibilities:

  • Redesigned core platform UI with 50+ components in Storybook.
  • Collaborated with data scientists on data visualization.

Frontend Developer - Bicepsdigital (Legacy Desktop Application Redesign and Client Website Optimization)

Duration: 01/2017 - 04/2017

Summary: Redesigned legacy desktop applications into responsive, mobile-first interfaces and optimized client websites for cross-device compatibility, including production of CSS-animated HTML banners.

Responsibilities:

  • Redesigned legacy desktop applications to responsive interfaces.
  • Produced CSS-animated HTML banners to boost engagement.
  • Optimized client websites for cross-device compatibility.

Frontend Developer - Designeo Creative s.r.o (Responsive Interactive Features and CSS Animations)

Duration: 03/2016 - 01/2017

Summary: Delivered responsive interactive features and CSS animations, including interactive forms for in-field surveys to enhance user engagement and data collection.

Responsibilities:

  • Developed responsive interactive features and CSS animations.
  • Created interactive forms for in-field surveys.

Frontend Developer - NMS Market Research (Market Research Dashboards and Mobile Interfaces)

Duration: 08/2012 - 11/2015

Summary: Engineered dashboards and data visualization components for market research results and built surveys and mobile interfaces serving thousands of respondents.

Responsibilities:

  • Developed dashboards and data visualization components.
  • Built surveys and mobile interfaces for large respondent base.

Web3 Hackathon Attendee and Winner (MeloDot Music Discovery and Donation dApp)

Duration: 10/2025 - 11/2025

Summary: Built MeloDot, a music discovery and donation decentralized application, integrating blockchain technology with music recognition and donation flows, winning a prize at the Polkadot Hackathon.

Responsibilities:

  • Engineered full-stack proof of concept using Solidity.
  • Implemented onboarding flow using Web3Auth and Spotify integration.

Technologies: Solidity, Web3Auth, Spotify API

Education

  • Metana Web3 Solidity Bootcamp
    Web3 Solidity Bootcamp Curriculum developed by industry experts from leading Web3 companies and universities. Intense practical course with 17 assignments to learn Solidity on Ethereum from ground up.
    05/2026 - Present
  • Associate's Degree, Information Technology
    IIVOŠ - Institut Informatiky - Vyšší odborná škola, s.r.o. Thesis: "Comparison and implementation of e-shop frameworks for small businesses."
    2010 - 2014
  • High School Diploma
    První České gymnázium v Karlových Varech
    2003 - 2007

How to hire with Upstaff

1

Talk to Our Talent Expert

Our journey starts with a 30-min discovery call to explore your project challenges, technical needs and team diversity.

2

Meet Carefully Matched Talents

Within 1-3 days, we’ll share profiles and connect you with the right talents for your project. Schedule a call to meet engineers in person.

3

Validate Your Choice

Bring new talent on board with a trial period to confirm you hire the right one. There are no termination fees or hidden costs.

Why Upstaff

Upstaff is a technology partner with expertise in AI, Web3, Software, and Data. We help businesses gain competitive edge by optimizing existing systems and utilizing modern technology to fuel business growth.

Real-time project team launch

<24h

Interview First Engineers

Upstaff's network enables clients to access specialists within hours & days, streamlining the hiring process to 24-48 hours, start ASAP.

x10

Faster Talent Acquisition

Upstaff's network & platform enables clients to scale up and down blazing fast. Every hire typically is 10x faster comparing to regular recruitement workflow.

Vetted and Trusted Engineers

100%

Security And Vetting-First

AI tools and expert human reviewers in the vetting process is combined with track record & historically collected feedbacks from clients and teammates.

~50h

Save Time For Deep Vetting

In average, we save over 50 hours of client team to interview candidates for each job position. We are fueled by a passion for tech expertise, drawn from our deep understanding of the industry.

Flexible Engagement Models

Arrow

Custom Engagement Models

Flexible staffing solutions, accommodating both short-term projects and longer-term engagements, full-time & part-time

Sharing

Unique Talent Ecosystem

Candidate Staffing Platform stores data about past and present candidates, enables fast work and scalability, providing clients with valuable insights into their talent pipeline.

Transparent

$0

No Hidden Costs

Price quoted is the total price to you. No hidden or unexpected cost for for candidate placement.

x1

One Consolidated Invoice

No matter how many engineers you employ, there is only one monthly consolidated invoice.

Ready to hire Jan Michek
or someone with similar Skills?
Looking for Someone Else? Join Upstaff access to All profiles and Individual Match
Start Hiring
Request Jan Michek Rates & Availability
Attachment File attachment Arrow

Upload File. Drag and Drop or Browse

{# when reCAPTCHA is disabled server-side (staging/local test), drop the g-recaptcha binding so the button submits directly — keeps front/back in sync via one flag #}
At Upstaff we respect confidentiality, privacy and value your information.

Confidential (C) UPSTAFF LTD, England and Wales, #12727246 17 Montgomery Drive, Tavistock, United Kingdom PL19 8KX

Terms, conditions and legal information.

Thank you! 🎉

Your message has been successfully sent. We’ll review it and get back to you as soon as possible.

Create an account to save your details and track your applications.

Sign up
Download Candidate Profile (PDF)

Please leave your details and we'll email you the resume right away.

At Upstaff we respect your privacy.

Confidential (C) UPSTAFF LTD, England and Wales, #12727246 17 Montgomery Drive, Tavistock, United Kingdom PL19 8KX

Terms, conditions and legal information.