Selected Projects

Tanya
Topacharova

I ship full-stack web apps and AI automations end to end — from scoping and design through to deployment.

React / TypeScriptNext.jsNode / Express React Native / ExpoPythonMySQL · OpenAPI · Docker Claude API · MCP

More Projects

03
InstaPay

InstaPay

In progress
Order-and-pay-at-the-table SaaS (Bulgaria)

A product initiative: guests scan a QR, order and pay from their phone, and the order flows straight into the venue’s till — no re-typing, no hardware. I built the positioning and landing page and validated the Bulgarian legal / fiscal path (НАП, СУПТО).

ProductLandingMarket & legal
Fitness Tracker

Fitness Tracker

Prototype + design
Voice-first, calendar-native nutrition tracker

For people who quit MyFitnessPal: log meals by voice and write a daily macro summary to your own calendar instead of another siloed app. On-device fuzzy matching keeps it AI-cost-free. Interactive prototype plus full product and pricing design.

React Native / ExpoWeb Speech APIFuse.js
Side Quest

Side Quest

Mobile app
A playful mobile app of small real-world quests

Hands you small, slightly absurd daily missions, then keeps each completed one as a photo in a scrapbook. Card-deck interface with a local-first SQLite store deliberately shaped to become a cloud sync layer later — not a rewrite.

React NativeExpoexpo-routerSQLite

Quality Engineering

QA & test automation

Before building products full-time, I spent 7+ years in engineering and software quality. As a DevOps engineer at SAP I defined and led the team’s QA and release procedures; at Cellpoint Digital I went deep on test automation for cross-border payments.

SAP
DevOps Engineer · led QA & release procedures
2018 — 2024 · Sofia
  • Led, defined and enforced the team’s QA and release procedures across an edge-computing platform.
  • Ran manual and automated testing (JUnit) and gated releases on quality and security criteria.
  • Led SAST security reporting and a security-tooling migration; authored release notes and operational runbooks.
  • Operated across a Kubernetes / Jenkins CI-CD platform on AWS, Azure and GCP; served as backup Scrum Master.
Cellpoint Digital
Senior Automation QA
2025 — 2026 · Remote
  • Built end-to-end automated test frameworks for a payment-orchestration platform processing cross-border transactions.
  • Authored E2E tests in TypeScript with Playwright, Cucumber and Gherkin — multicurrency flows and third-party PSP integrations.
  • Debugged distributed long-running workflows on Temporal, cutting mean-time-to-resolution on release blockers.
  • Built API, regression and performance suites that raised coverage and surfaced latency bottlenecks before release.
PlaywrightCucumberGherkinJUnitTemporalAPI testingRegressionPerformanceJenkins CI/CDSAST