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Danylo – React, Node.js, Firebase, experts in Lemon.io

Danylo

From Ukraine (UTC+3)flag

Full-stack Web Developer|Middle

Danylo – React, Node.js, Firebase

Danylo is a middle full-stack developer with 4+ years of experience building scalable, high-performance web applications using JavaScript, TypeScript, Next.js, Node.js, Express, and NestJS. He has delivered complex products across edtech, real estate, healthcare, marketing, and AI-driven platforms — consistently owning both front-end and back-end development. He has hands-on experience with AWS, PostgreSQL, Firebase, and modern API integrations, along with a strong product mindset and attention to detail. Passionate about solving complex problems and improving user experience, he brings reliability, technical depth, and proactive collaboration to any engineering team.

6 years of commercial experience
Main technologies
React
5 years
Node.js
5 years
Additional skills
Firebase
PostgreSQL
Direct hire
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Experience Highlights

Full-stack developer
Sep 2024 - Jul 202510 months
Project Overview

Steer to Success is an online education platform offering full, high-quality British curriculum content. It supports all learning levels with chapter-based lessons, flexible access, and a focus on student wellbeing. Schools benefit from affordable licensing, while teachers earn passive income from course creation.

Responsibilities:
  • Designed and implemented scalable architecture for the platform
  • Developed a custom course management system, enabling teachers to easily upload content
  • Integrated secure payment processing, allowing seamless transactions
  • Built an adaptive learning engine that tailors content based on student performance
Project Tech stack:
React
Node.js
PostgreSQL
AWS
Full-stack developer
May 2023 - Aug 20241 year 3 months
Project Overview

Click London is a top-tier photography company specializing in real estate, interior, and architectural visuals. They offer high-quality interior shots, aerial photography, floor plans, and virtual staging. Focused on precision and creativity, they help clients showcase properties with stunning, impactful imagery.

Responsibilities:
  • Built a media delivery portal allowing clients to securely access images
  • Integrated image processing and optimization pipelines, reducing load time
  • Created an admin dashboard for internal team use
  • Implemented user roles and access control
Project Tech stack:
React
Node.js
AWS
PostgreSQL
Full-stack developer
Aug 2022 - Apr 20238 months
Project Overview

A/B Queen is an AI-powered platform that creates and optimizes landing pages based on user intent and SEO strategy. It generates tailored templates, keyword suggestions, and simplifies A/B testing to help businesses boost conversions, streamline campaigns, and make data-driven marketing decisions.

Responsibilities:
  • Built a dynamic keyword suggestion engine, leveraging search intent analysis
  • Designed and implemented an intuitive A/B testing dashboard
  • Created a modular template builder, enabling drag-and-drop customization
  • Integrated Google Analytics and conversion tracking, providing real-time performance metrics
Project Tech stack:
React
Node.js
PostgreSQL
AWS
Full-stack developer
Sep 2021 - Jul 202210 months
Project Overview

Health24 is a digital healthcare platform that streamlines doctor appointments and provides instant access to electronic medical records. Users can easily find, book, or cancel appointments, filter doctors by multiple criteria, and view patient reviews. The app simplifies healthcare management for individuals and families.

Responsibilities:
  • Built a secure appointment booking system, allowing patients to easily schedule visits
  • Developed advanced doctor search and filtering
  • Implemented patient authentication and privacy protocols, ensuring compliance
  • Integrated real-time doctor availability
Project Tech stack:
Node.js
React
Typescript
AWS
Full-stack developer
Nov 2020 - Aug 20219 months
Project Overview

Taskey is a task management app for professionals like coaches, therapists, and teachers to assign personalized tasks, track progress, and boost accountability. With reminders, feedback, and clear instructions, it streamlines support and empowers clients to stay on track with their goals outside of sessions.

Responsibilities:
  • Integrated secure user authentication and role management
  • Implemented analytics and insights tool
  • Optimized backend performance, reducing response time
  • Created a reminder and notification syste
Project Tech stack:
React
Node.js
AWS
Redux

Languages

English
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