Vasil Tsintsev

Software engineer & technical entrepreneur

Independent thinking. Complete delivery.

Ideas deserve
to make it.

I turn business ideas into complete, working products — combining 20+ years of engineering experience with AI-assisted development to move faster, finish the work, and take it into production.

Explore my work
THE WHOLE TECHNICAL PICTURE

Architecture. Code. Infrastructure.
Launch. And everything after.

One person connecting the pieces.
One product that actually works.

01 / A product builder’s perspectiveKeep scrolling

01 — Products & projects

Built. Launched.
Still moving forward.

Long-term products and substantial platforms, with continued involvement across much of this work — from initial engineering to ongoing development.

03
TRAVEL BUSINESS SOFTWARE

TOBO

The work behind a travel business, connected: reservations, suppliers, payments, documents, reporting, and AI integrations.

Business workflows · Supplier integrations · Ongoing development
04
VENUE & SEATING PLATFORM

Cavea

A venue editor, seating renderer, and live availability platform. From zero to a working product in about two months.

Rust · Interactive editor · Live updates
05
RENTAL OPERATIONS

AutoRentalPlatform

Fleet and reservation operations with an embeddable booking flow, server-side pricing, vehicle assignment, and payments.

Laravel · Booking engine · Business operations
06
NEWS & PUBLISHING

FrogNews

From the earlier PHP platform to a responsive Astro frontend and Rust API, supporting the demands of a working news operation.

Publishing · Astro & Rust · Platform evolution

Earlier work

The projects along the way.

Earlier websites and client projects across travel, commerce, arts, and publishing. Part of my history, rather than a list of current engagements.

Explore earlier projects
  • FONT TO WEB
  • ECO FRIENDLY PLANET
  • Zhenya Tsintseva
  • Iassen Giuzelev
  • BSPH
  • willyburkhard
  • Ivaila
  • AdventureClub
  • Ergoliam
  • nedatour
  • Ruf Award
  • Chechosan
  • Matthias Imdorf
  • BisuteriaRocae
  • Bubub Shop
  • Mikoni
  • Belsana
  • ALLinOFFICE
  • MedSpa
  • Gastronormi
  • Anton Staykov’s Blog
  • ONCO
  • ReligareProject
  • donfery
  • PGJPT-SF
  • SaglasieLife

Selected from my earlier portfolio. Project names reflect the original work; their current availability and operation may have changed.

02 — How I work

AI accelerates the work.
I own the outcome.

Speed matters when you’re building a business. So does getting the whole system to work. I stay responsible for both.

01 / UNDERSTAND

Start with the
business problem.

I get to know the requirements, define the architecture, and choose a stack that fits the product and its path to launch.

02 / BUILD

Connect the
whole system.

I direct AI-assisted development, coordinating components and overseeing code, data, interfaces, infrastructure, and external integrations.

03 / LAUNCH

Finish the work.
Put it into use.

Test strategies, user flows, UI and end-to-end tests, CI/CD, and release automation bring the pieces into a working production product.

04 / OPERATE

Stay with
the product.

Reliability, security protections, monitoring, alerts, and customer feedback guide the next stage of its development.

Tools change.
Engineering judgment stays essential.

Claude Code and Codex are central to my workflow. They help me deliver faster; technical direction, integration, and responsibility remain with me.

03 — Engineering for growth

Build the product.
Build the tools to grow it.

A working product needs a way to reach customers. I also build the marketing systems around it — connecting audiences, campaigns, offers, and measurement with the business itself.

REACH & ENGAGE

The right audience.
A relevant message.

Audience builders, customer segmentation, personalized recommendations, and campaign workflows that help teams communicate with the people they want to reach.

CONVERT & RETAIN

From interest
to the next action.

Landing-page builders, promotions, upsell tools, and customer lifecycle communication — connected to product data and the systems that run the business.

MEASURE & LEARN

A clearer view
of what happens.

Campaign attribution, tracking, reporting, and experiment workflows. Tools that help teams understand customer journeys and make informed decisions about what to improve.

Engineering experience, informed by entrepreneurship studies and hands-on work with operating businesses.

See this in Ticket.bg ↗

04 — A little context

An engineer’s mind.
An entrepreneur’s
commitment.

20+

years building software
professionally

I’m Vasil. I build the technical systems that turn an idea into a working business.

My career grew from web development into complete applications, infrastructure, and products across industries. I work across the boundaries — from databases and network infrastructure to native apps and business integrations.

My education combines practical software engineering at SoftUni with entrepreneurship studies at MT&M college. That business perspective helps me connect technical decisions with how a product reaches customers, sells, and develops over time.

Since September 2021, I’ve worked at pCloud on backend development, automation, and supporting systems. My entrepreneurial work includes products in travel, ticketing, and electric mobility.

I stay close to implementation and can bring in trusted design and QA specialists when a product needs them. The goal is a finished system that people can use, and a business can keep building on.

05 — The next conversation

What do you
want to build?

For the right venture, with a clear direction and the resources to execute, I’m open to a deeper, long-term technical partnership.

Let’s connect on LinkedIn
Flexible collaboration

Collaboration is also possible through my software company, VZ Concept EOOD ↗.