Jura Fitzgerald
Verified Expert in Engineering
Web Development Developer
Kharkiv, Kharkiv Oblast, Ukraine
Toptal member since April 5, 2021
Jura has experience in front-end and back-end web development, AI and machine learning, blockchain, DevOps, quality assurance, hardware, and robotics. He understands well how the technology works, from low to high level, and has honed his management skills leading both small teams and teams of up to 20 people. Jura cares about the business side of the product and treats cooperation as a partnership.
Portfolio
Experience
- Web Development - 11 years
- JavaScript - 11 years
- Cybersecurity - 11 years
- Ruby on Rails (RoR) - 10 years
- Cloud Computing - 10 years
- Blockchain - 7 years
- Python - 6 years
- Machine Learning - 5 years
Availability
Preferred Environment
MacOS, Terminal, Web, Slack, Email, Zoom
The most amazing...
...thing I've built is a robot for home automation that can move around the room and interact with objects.
Work Experience
Founder
Machine Learning
- Founded one of the first machine learning agencies in Ukraine.
- Hired and managed technical and non-technical teams.
- Delivered over 40 machine learning projects utilizing different cutting-edge AI technologies.
CTO
Cryptocurrency and Digital Assets Exchange Company
- Built the biggest local cryptocurrency and digital assets exchange from scratch to $1,000,000 in daily trading volume.
- Designed, managed, and scaled the IT infrastructure of the product.
- Implemented security protection and fought off hacker attacks.
- Recruited, managed, and led a technical engineering team.
Senior Consultant
Distributed Lab
- Consulted the clients on different blockchain and cybersecurity projects.
- Built multiple projects such as wallets for digital assets and cloud mining services.
- Helped to recruit the team and conducted over 70 technical interviews.
Co-founder
Ready to Travel
- Designed UI and built the front-end part of the service.
- Recruited and led a team of software engineers.
- Established the work of the quality assurance department.
Software Engineer
Sphere Software
- Contributed to the development of a popular babysitting service and implemented new features.
- Covered the code with unit tests and refactored the existing code.
- Optimized database structure and SQL queries for report generation.
Experience
Cryptocurrency and Digital Assets Exchange
AI-powered eKYC System
The user takes a photo of his ID card, which is recognized using the optical character recognition (OCR) algorithm.
The user then proceeds to the liveness verification stage and makes required gestures. The gestures are recognized and verified at this stage, and the facial recognition algorithm compares the camera image and the photograph from the user's passport.
Operators and administrators can securely manage user records.
Ready to Travel Search System
Bitalo Trading Platform
Bitalo integrates the following services:
- Wallet for storing bitcoins securely as never before.
- Trading bitcoins on a decentralized exchange.
- Dispute resolution in a transparent and fair process.
- Backup so users can get their bitcoins back, even if Bitalo was to be shut down.
- Secure communication, including end-to-end encrypted communication channels for users.
Bitforx Digital Wallet
- Digital wallet with both hot and cold storage solutions.
- Users can buy the hashing power and start mining with the minimum investment, minimal risk, and no technical knowledge.
- Users can swap their coins on our easy-to-use coin exchange.
Skills
Libraries/APIs
Node.js, Ruby on Rails API, React, Socket.IO, Ruby ERB, Sockets, WebRTC, REST APIs, JSON-RPC, Stripe, Sidekiq, Pandas, Matplotlib, D3.js, Pusher, Puppeteer, PhantomJS, TensorFlow, PyTorch, Keras, OpenCV, NumPy, SpaCy, Liquid, Natural Language Toolkit (NLTK)
Tools
Terminal, Zoom, JSX, RSpec, Cucumber, NGINX, Apache, RabbitMQ, Amazon Simple Queue Service (SQS), Amazon Simple Notification Service (SNS), VPN, NMap, Cron, Git, GitHub, GitLab, Capistrano, Slack, Mocha, 2Checkout, Nagios, Systemd, Monit, Logstash, Bareos, Vagrant, VirtualBox, Ansible, Chef, Gensim, BackupPC
Languages
Ruby, Python, PHP, JavaScript, TypeScript, CoffeeScript, Delphi, Bash, Pascal, SQL, HTML, CSS, Sass, Haml, Pug, XML, YAML, Markdown, Regex, Unicorn, C++, C#
Frameworks
Ruby on Rails (RoR), Sinatra, GrapesJS, Redux, Express.js, Django, Flask, Bootstrap, Tailwind CSS, Slim, Twig, minitest, Capybara, Cypress, Selenium, Angular, Laravel, Yii, Zend Framework, gRPC, Jasmine, Darknet, Core ML, Ionic, .NET, Coral Services Framework
Paradigms
Test-driven Development (TDD), Behavior-driven Development (BDD), CSRF Protection, Microservices, DevOps
Platforms
MacOS, Web, Arduino, Raspberry Pi, Ethereum, Bitcoin Cash, Linux, DigitalOcean, Blockchain, Dropbox, Docker, Google Cloud Platform (GCP), Amazon Web Services (AWS), Twilio, Windows, Heroku, Apache Kafka, New Relic, Kubernetes, FreeBSD, Quick EMUlator (QEMU)
Storage
JSON, SQL Injection Protection, Google Cloud, MySQL, MariaDB, SQLite, MongoDB, Redis, Google Cloud SQL, Amazon S3 (AWS S3), PostgreSQL, Amazon Aurora, InfluxDB, Datadog, Microsoft SQL Server
Industry Expertise
Cybersecurity
Other
Email, Computer Vision, Natural Language Processing (NLP), Deep Learning, JSON Lines, CSV, HTTP, HTTPS, WebSockets, Ajax, POP3, IMAP, SMTP, Cryptography, Digital Signage, RSA, Elliptic Curve Cryptography, PGP, XSS Protection, NVIDIA Jetson Nano, Bitcoin, Litecoin, Dash, Cloud Computing, Web Development, Machine Learning, Puma, SSH, Telnet Protocol, DNS, Firewalls, Cloudflare, CI/CD Pipelines, Universal Asynchronous Receiver/Transmitter (UART), Embedded Systems, Optical Character Recognition (OCR), Object Detection, Text Classification, Object Recognition, API Management, Generative Pre-trained Transformers (GPT), XMPP, PCI DSS, BrainTree, PayPal, Ripple, Stellar, Microsoft Azure, Tornado, SSL, Transport Layer Security (TLS), NAT, HAProxy, Bacula, I2C, Serial Peripheral Interface (SPI), RFID, Near-field Communication (NFC), ESP32, EOS, Google BigQuery, Front-end, Quality Assurance (QA), IIS, ML Kit, Code Architecture, User Interface (UI), User Experience (UX), Startups, Decentralized Systems, Cryptocurrency
How to Work with Toptal
Toptal matches you directly with global industry experts from our network in hours—not weeks or months.
Share your needs
Choose your talent
Start your risk-free talent trial
Top talent is in high demand.
Start hiring