Full Stack Developer
Daniel Voloshyn
I build high-quality web applications from concept to production. 8+ years of experience delivering scalable solutions in fintech, e-commerce, and business products.
Available for new projects
Open for new offers
Why Work With Me?
I don't just write code — I solve business problems and build foundations that last.
I Solve Problems, Not Create Them
My focus is on eliminating pain points, not adding complexity. Every line of code I write is aimed at solving your real business challenge.
Optimal Solutions, Not Over-Engineering
I find the most efficient path to your goal. No unnecessary frameworks, no bloated architecture — just clean, pragmatic solutions that work.
I Think Ahead
Every decision I make considers the future. Scalable architecture, maintainable code, and smart choices that save you time and money down the road.
Proactive Recommendations
I don't just follow specs — I suggest improvements, flag potential issues early, and share insights that help your product succeed.
Ownership & Reliability
I take full responsibility for my work. Deadlines, quality, communication — you can count on consistent delivery without micromanagement.
End-to-End Delivery
From database design to deployment and monitoring — I handle the full cycle. One person, full context, zero knowledge gaps between layers.
Tech Stack
The tools and technologies I use to bring products to life.
Frontend
Backend
Tools
DevOps
WordPress
9+ years of expertise
Custom Themes
Building pixel-perfect themes from scratch
Plugin Development
Custom plugins for any business logic
WooCommerce
Online stores, payments, shipping
API Integrations
CRM, payment gateways, 3rd party services
Performance & SEO
Redis caching, Core Web Vitals, optimization
Security & Server
Full server setup, SSL, hardening
Customization
Modifying existing themes and plugins
Telegram Bots
Order notifications, customer support bots
How I Work?
A clear, proven process that turns ideas into production-ready products.
Discovery & Analysis
I start by understanding your business, goals, and constraints. I analyze the problem space, ask the right questions, and define the scope before writing a single line of code.
Architecture & Planning
I design the technical architecture, choose the optimal stack, plan the database schema, and create a roadmap. Every decision is made with scalability and maintainability in mind.
Development & Iteration
Clean, well-tested code delivered in iterations. Regular updates, transparent communication, and quick feedback loops ensure we stay aligned throughout the process.
Launch & Support
Thorough testing, deployment, performance monitoring, and post-launch support. I make sure everything works flawlessly and stay available for ongoing maintenance.
About Me
I'm a Senior Full Stack Developer based in Prague, Czech Republic. I specialize in building modern web applications with Node.js and React.js, with a strong focus on clean architecture, performance, and scalability.
From fintech platforms processing real transactions to business product workspaces — I've delivered solutions across diverse domains. I take ownership of projects from database design to deployment, ensuring every layer meets production standards.
I hold a Master's degree in Software Engineering from Uzhhorod National University, where I built my foundation in client-server systems that continues to drive my work today.
8+
Years Experience
200+
Projects Delivered
Full Stack
Expertise
Master's
in Software Engineering
Experience
Frontend Developer
Triberry.io
May 2025 – Dec 2025
7 months
Joined a VC-backed AI startup building an AI-powered product workspace that maps user flows and detects UX issues. Took ownership of the frontend — built core UI features, integrated Stripe payments, and implemented interactive canvas-based components using the Observer pattern. Delivered all planned scope and prepared scalable foundations for future development.
Tech Lead & Full Stack Developer
DynastyLab
Mar 2020 – Apr 2025
5 years
Led technical direction for a fintech product company building internet acquiring systems, currency exchange platforms, and internal tools. Designed project and database architectures, performed code reviews, managed server infrastructure, and delivered full-stack solutions — from CRM systems and payment platforms to Telegram bots and admin panels.
Full Stack Developer · E-commerce
Freelance
2016 – Present
9+ years
Building and maintaining e-commerce solutions ranging from simple online stores to complex ecosystems with websites, mobile apps, CRM systems, and Telegram bots. Deep expertise in WordPress/WooCommerce — custom plugins, themes, SEO optimization, Redis caching, and full server setup with security best practices.
Full Stack Developer
CoinPay
Aug 2019 – Mar 2020
9 months
Developed a peer-to-peer transfer platform from architecture design to implementation. Built both frontend and backend, created Telegram bots, and wrote PHP integration modules for API connectivity.
More positions available on my LinkedIn - linkedin.com/in/densqi
What Clients Say
Feedback from people I've worked with.
“We needed an online shop and a simple Telegram bot so our managers could see orders without logging into the website. Daniel understood the task quickly and didn't overcomplicate things. The shop went live on time, the bot works exactly as we asked. We've been running it for over a year with no issues.”
Valeria — Flower Shop
Online Flower Store
“I came with a rough idea and a product list. Daniel helped figure out the right structure, set up the store, and made it look the way I wanted without pushing his own taste. The checkout is smooth, loading is fast, and I can manage products myself without calling anyone. Happy with how it turned out.”
Alla — Eco-Cosmetics
Eco-Cosmetics Store
“I manage a lot of sites across different clients and stacks. Daniel helps when I need extra hands — whether it's a quick fix or building something from scratch. He picks up context fast, doesn't ask unnecessary questions, and just delivers. We've launched a few projects together and I keep coming back.”
Rostislav — Webmaster
Owner of 200+ Websites
“Daniel joined us as a developer and over 5 years ended up leading the technical side of several products. He designed the architecture of our acquiring system, set up infrastructure, and ran code reviews. What I valued most — he thought about consequences, not just the immediate task. Reliable and technically solid.”
DynastyLab — CTO
Fintech Product Company
“The project had a lot of moving parts — customer app, operator panel, courier bot, admin dashboard. Daniel was involved from architecture to deployment. There were complex moments, but he handled them without drama. The platform is live, couriers use the bot daily, operators work in the CRM without complaints.”
Kyrylo — Food Marketplace
Food Marketplace — Owner & CEO
“Daniel built the whole setup for us — the store, a CRM to track orders and customers, and a Telegram bot our couriers use for delivery updates. Everything talks to each other. There were a few tweaks after launch and he handled them quickly. The site ranks well and loads fast, which matters for sales.”
E-commerce Client
Online Retail
These are just some of the reviews — I have many more satisfied clients.
Pricing
Transparent pricing for every engagement model.
Hourly
Perfect for small tasks, bug fixes, or consultations.
- Flexible hours
- Quick turnaround
- Frontend or Backend tasks
- Bug fixes & improvements
- Code review & consultation
Monthly Support
Ongoing development and maintenance for your project.
- 40 hours/month included
- Priority communication
- Regular updates & reports
- Performance monitoring
- Bug fixes included
- Feature development
Full-Time
Dedicated full-time engagement for larger projects.
- 160 hours/month (full-time)
- Team integration
- Architecture & tech lead
- Code review & mentoring
- DevOps & deployment
- Custom arrangement available
Let's Work Together
Have a project in mind? I'd love to hear about it. Whether you need a full-stack developer, a technical lead, or a freelance consultant — let's connect.