DOYCHIN BORISOV — FULL-STACK DEVELOPER — BULGARIA · EUROPE · WORLDWIDE

The engineering behind a business that just runs.

9+ years as a full-stack developer — from the interface your customers see to the servers that keep it all live.

Get in touch GitLab LinkedIn

Available for new projects Open to full-time, contract, and freelance roles — remote or hybrid.

GET /api/v1/developer HTTP/1.1
Host: doychinborisov.com

HTTP/1.1 200 OK

{
    "name": "Doychin Borisov",
    "role": "Full-stack developer",
    "experience_years": 9,
    "based_in": "Bulgaria",
    "works": [
        "remote",
        "hybrid"
    ],
    "open_to": [
        "full-time",
        "contract",
        "freelance"
    ],
    "available_in": [
        "Bulgaria",
        "Europe",
        "Worldwide"
    ],
    "available_for": [
        "Web applications",
        "Online shops & checkout",
        "Database design & optimization",
        "API & platform integrations",
        "Custom admin panels",
        "WordPress maintenance"
    ]
}

9+ years experience
4 companies
6 public projects
20+ APIs integrated

GET /services

What I can do for you

I need a website or web app built

Custom web applications, built from scratch

A site or web app designed around how your business actually works — not a generic template forced to fit.

Laravel PHP MySQL

15+ custom web applications delivered (Laravel, Symfony, WordPress)
Requirements gathering through deployment and maintenance
Responsive, mobile-friendly interfaces
Cross-browser compatibility

My site is outdated, or another developer left it behind

Redesigns and takeovers of existing sites

I step into projects other developers left behind, and modernize sites that have fallen behind.

Laravel WordPress PHP

Complete UI/UX rebranding, led at team level
Legacy code refactoring
Inheriting and stabilizing existing codebases
Website migrations to new servers or platforms

I need a dashboard or admin panel to run my business

Custom admin panels and dashboards

One screen to manage orders, customers, inventory and reports — shaped around how you actually work.

Laravel MySQL DevExtreme

Dual client/admin portals
Role-based access control (RBAC)
Employee management (leave, work logs)
Real-time internal chat
Event-driven notifications
CLI automation (imports, reports, maintenance)

My shop needs to talk to couriers and payment providers

E-commerce, payments & logistics integration

Your store talking to couriers, payment providers, and order systems — automatically.

Stripe PayPal Courier APIs

Stripe & PayPal checkout integration
Secure checkout flows
Shopping cart & inventory systems
Shipping label generation
Real-time package tracking
Order management sync
Claims & damage-handling workflows

My tools and platforms do not talk to each other

API & third-party platform integrations

Your CRM, accounting, email, and other platforms — talking to each other automatically.

REST APIs Webhooks

REST API design
Provider-wrapper / standardization layers
Casino & sports-betting integrations
CRM, email marketing & social API integrations
Affiliate platform integrations

My WordPress site needs help

WordPress maintenance & support

I take over WordPress sites other developers left behind and keep them fast, secure and up to date.

WordPress PHP MySQL

Site maintenance & takeovers
Custom scripts & snippets
Multi-site network management
Migrations, performance & security hardening

My database is slow or a mess

Database design & performance optimization

Solid data foundations that scale with your business, not against it.

MySQL PostgreSQL SQLite

MySQL, PostgreSQL, SQLite, Firebird schema design
Normalization & indexing
Query optimization
Caching strategies

I want people to actually find my site

Technical SEO & site visibility

The technical groundwork that helps search engines find, understand, and correctly index your site.

Sitemaps Structured Data

XML sitemaps & robots.txt
JSON-LD structured data
Canonical tags & hreflang for multi-language sites
Meta tags & Open Graph
Technical site-health basics

I want a second opinion, or ongoing code quality

Code quality, testing & technical consulting

A second pair of senior eyes: tests, static analysis, and coding standards introduced into a living codebase.

PHPUnit PHPStan CodeSniffer

Static analysis (PHPStan)
Coding standards (PSR-12)
PHPUnit testing
Clean, maintainable code
Security hardening (XSS/CSRF/SQLi)
Code reviews

I need someone to host, deploy, and keep it running

Deployment & managed server support

From a working app to a live, secure, monitored production site — and I can keep it that way.

Docker Linux Nginx

VPS setup & server management
Domain & DNS configuration
HTTPS/SSL (automatic certificates)
Docker containerization & deployment
Automated CI/CD pipelines (GitHub Actions)
Uptime & error monitoring
Backups

GET /projects

Things I have built

lacitex

A platform connecting citizens with lawyers — separate portals, meeting scheduler, admin dashboard.

Laravel MySQL Tailwind REST API

mvc-restful-api

A REST API framework built from scratch — no Laravel, no libraries: hand-rolled MVC and JWT auth, with a built-in test UI.

Vanilla PHP OOP JWT MySQL

techshop

An online store with PayPal and Stripe checkout — built from scratch.

PHP MVC Bootstrap PayPal Stripe

user-administration

User management system with roles, voting and a user panel.

PHP MySQL jQuery

paginator

A reusable pagination engine for APIs and databases.

PHP MySQL AJAX

gender-names

A data pipeline predicting age and gender from names via an external API.

PHP MySQL REST

All projects on GitLab →

POST /project

How working with me looks

You describe the problem in your own words.

No spec required — a plain email is fine.
I propose a solution.

With a clear scope, timeline and price.
You get it deployed, documented and tested.

With a handover you can understand.

What you get, every time

Requirements gathering & scoping
Clear documentation & handover
Reliable estimates & deadlines
Tested & static-analysed code
I work in English & Bulgarian

GET /testimonials

What clients say

Good communication about availability for work. Started and followed on the project with a video call and thorough description about the website code and database.

Client, via Upwork PHP & MySQL website review and updates

Clear Communicator Detail Oriented

5.0★ average Upwork rating
5 completed Upwork projects
147+ hours, one contract

GET /skills

Tools I work with

Click a category to highlight the skills behind it — combine a few to widen the view.

PHP Laravel OOP / SOLID Symfony PHPUnit PHPStan CodeSniffer Composer xDebug Blade templates Queues & background jobs Auth & permissions (RBAC) Search & filtering MySQL PostgreSQL SQLite Firebird Query optimization JavaScript HTML / CSS jQuery Bootstrap Tailwind CSS DevExtreme React Native Localization (i18n) REST API design JWT auth Courier / shipping APIs PayPal Stripe Webhooks Transactional email Data import / export PDF & report generation Real-time chat & notifications Git Docker Linux Apache Nginx Bitbucket VPS deployment Cron / scheduled tasks Server, SSL & backups GitHub Actions / CI-CD AI-assisted development WordPress Site takeovers / bug fixing Performance optimization Security (XSS / CSRF / SQLi) Code reviews SEO basics

Daily driver
Solid
Working knowledge

GET /experience

Where I have worked

Freelance web developer 2017 – present

Independent client projects delivered alongside my full-time roles — real, shipped work throughout my career.

euShipments 11/2024 – present

Full Stack Web Developer · hybrid
Ciklum 07/2022 – 01/2023

Web Developer · remote
Flat Rock Technology 04/2021 – 07/2022

Web Developer · hybrid
IT Firm 04/2017 – 04/2021

Web / Mobile Developer · hybrid

Education BSc Computer Science, University of Ruse "Angel Kanchev" (2013 – 2018)

Languages English, Bulgarian

GET /faq

Frequently asked questions

Are you available for freelance, contract, or full-time work?

Yes — all three. I'm currently open to new freelance projects, contract engagements, and full-time roles, remote or hybrid.

Where are you based, and what timezone do you work in?

Based in Bulgaria (EET/EEST, UTC+2/+3). I keep flexible hours to overlap with US and Western European teams, and reply to messages within 24 hours regardless of timezone.

Do I work with you directly, or through an agency?

Directly with me. I work solo — no account managers, no handoffs to other developers partway through a project.

What does getting started look like?

A short call or written brief to scope the work, then a clear quote and timeline. For contract work, I fit into whatever process your team already runs — tickets, code review, PR workflow.

What's your core tech stack?

PHP and Laravel daily, plus Symfony; MySQL and PostgreSQL for data; Docker for deployment; and whichever frontend a project already uses. Full breakdown in the Skills section below.

How is payment structured?

Hourly for ongoing or contract work, fixed-price for well-scoped projects — happy to work through Upwork or a direct contract, whichever suits you.

POST /contact

Tell me about your project

Name

Email

Message

Your details are only used to reply to you — never shared, no newsletters.