Yerevan, Armenia · GMT +4 · Currently CTO at YAVVI AI

Davit Prazyan

I design and ship scalable SaaS platforms, fintech systems, AI-powered products and high-load microservice architectures - end to end, from the whiteboard to production.

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  • 0Years in engineering
  • 0Client projects delivered
  • 0Core technologies mastered
  • 0Current role

Who you are hiring

About

Senior Full Stack Developer, Team Lead and Solution Architect with 8+ years of experience building scalable SaaS platforms, fintech systems, AI-powered products, high-load services and microservice architectures. 

I work across the whole stack - PHP (Laravel, Yii2), Node.js (NestJS, Express) and Python (FastAPI) on the backend; React, Vue, Nuxt and Next.js on the frontend. I design high-load systems, optimise databases, and build event-driven and realtime architectures on WebSockets and message queues.

Beyond code, I take on the technical leadership: architectural decisions, project scoping and estimation, client communication, and planning the work of the team. I also modernise legacy systems without disrupting the business running on top of them.

Davit Prazyan speaking with a microphone
  • Based inYerevan, Armenia · GMT +4
  • EducationBSc Informatics & Applied Mathematics, Yerevan State University, 2022
  • LanguagesArmenian (native) · Russian (C1–C2) · English (B1)
  • Focus areasAI integrations, fintech & payments, Web3/dApps, realtime systems
  • CertificationsC++

The tools I build with

Stack

01

Backend

  • PHP
  • Laravel
  • Yii2
  • Core PHP
  • Node.js
  • NestJS
  • Express
  • Python
  • FastAPI
  • REST API
  • WebSockets
  • RabbitMQ
  • Event-driven architecture
02

Frontend

  • React
  • Redux
  • Vue 2/3
  • Nuxt 2/3/4
  • Next.js
  • TypeScript
  • Tailwind
  • Material UI
  • jQuery
03

Mobile

  • React Native (iOS/Android)
  • Flutter
04

Databases

  • PostgreSQL
  • MySQL
  • MongoDB
  • SQLite
  • Query optimisation
  • High-load DB architecture
05

Infrastructure & DevOps

  • Docker / Compose
  • Linux
  • Nginx
  • Redis
  • RabbitMQ
  • CI/CD (GitLab Runner)
  • Prometheus / Grafana
  • Sentry
  • DNS & cloud infra
06

AI & Computer Vision

  • Python
  • PyTorch
  • NumPy
  • YOLO / Ultralytics
  • ByteTrack
  • ONNX
  • LangChain
  • FAISS
  • RAG pipelines
  • LLM decision layers
07

Web3 / dApp

  • Solidity
  • EVM chains
  • Ethers.js
  • Web3.js
  • MetaMask
  • WalletConnect
  • On-chain data & contract events
08

Payments, Auth & Analytics

  • Stripe
  • YuKassa
  • JWT
  • OAuth2
  • VK ID
  • Yandex ID
  • SMS/Voice OTP
  • Telegram Apps & Bots
  • Google Analytics
  • PostHog

Where I have done it

Experience

  1. An AI-powered computer vision and video analytics product. A domain-agnostic CV platform for video stream analysis; first demo use case - gas stations (event detection, on-site analytics).

    • Own the technical strategy and architecture of the CV platform: detection and tracking pipeline (YOLO, ByteTrack), inference (ONNX), backend (FastAPI) and the LLM-based decision layer.
    • Designed a domain-agnostic platform architecture reusable across verticals - retail, gas stations and beyond.
    • Building the technical team, planning the roadmap and prioritising development.
    • Designed and shipped the company site (yavvi.ai) end to end - a Nuxt 4 SSR frontend with WebGL scenes and scroll-driven video, plus its Node/Nginx deployment.
    • Technical scoping and commercial proposals for clients (fixed-price / T&M): task breakdown, effort estimation, architectural decisions - e.g. choosing a CRM architecture for a multi-platform project spanning PWA, website, iOS/Android and analytics.
    • Designed auth systems for client projects in the Russian market under regulatory constraints: SMS/voice OTP, with VK ID and Yandex ID as supplementary OAuth2 options.

    CTO + technical team allocated by product area

    • YOLO
    • ByteTrack
    • ONNX
    • PyTorch
    • NumPy
    • FastAPI
    • Python
    • LLM
    • Nuxt 4
    • Three.js
    • Laravel
    • Yii2
    • VK ID
    • Yandex ID
  2. A software company delivering full-stack development for external clients. 25+ client projects of varying scale and domain - from EdTech and computer vision to travel-booking platforms and GPU infrastructure.

    • Full-stack development and technical delivery of client projects as part of the agency team.
    • From 08.2025 - additional Business Analyst role: requirements gathering and analysis, technical scoping, and preparing commercial proposals for clients.
    • Led development on Simbiz lab as Senior Full-Stack / Team Lead - eight microservices, RAG pipelines, CI/CD and monitoring.
    • Lead frontend developer on kreditka.expert - a comparison service for Russian retail banking products; shipped 05.2025.

    Agency team + client-side stakeholders

    • Laravel
    • Yii2
    • PHP
    • Node.js
    • React
    • Vue
    • FastAPI
    • Python
    • YOLO
    • PostgreSQL
    • MySQL
    • Docker
    • Stripe
  3. Technical lead on the Armenian Judo Federation project in Yerevan.

    • Led the project team through delivery.
  4. paynovate.com (Belgium) - a banking platform - and the Legato app project for music schools.

    • Planned the microservice architecture.
    • Admin panel work, backend transaction handling, and integration across multiple microservices.
    • Designed and built the Legato app from scratch on React Native / Laravel for music schools.

    Paynovate Bank 50+ · Legato App 5+

    • Laravel
    • TypeScript
    • TypeORM
    • MySQL
    • React Native
    • Linux
    • Bash
  5. A short full-stack engagement in Yerevan.

    • Full-stack delivery work for the studio.
  6. A travel platform with a user-facing side and an admin panel for content, user and analytics management - rebuilt on a microservice architecture for scalability and fault tolerance.

    • Redesigned the project architecture by introducing a microservice approach, improving scalability.
    • Optimised MySQL queries for high-load performance, measurably speeding up the system.
    • Fully rewrote the frontend (Vue 2 / jQuery), improving load times and UX.
    • Hardened security against SQL injection, XSS and CSRF; improved error logging and monitoring.
    • Automated data processing, reducing server load.

    2 Senior Full-Stack · 1 Backend · 1 PM · 1 QA

    • Laravel
    • PHP
    • Vue 2
    • jQuery
    • MySQL
    • Redis
    • Docker
    • REST API
    • WebSockets
  7. 4over4.com - a US printing company serving marketing needs. Work under NDA.

    • Set up site analytics from scratch - Google Analytics, User Analytics, PostHog.
    • Migrated the backend from Core PHP to CodeIgniter/jQuery, and from Core PHP to Laravel/React.
    • Rewrote the interface with a new UI and refactored the frontend.

    3 Full-Stack · 3 Backend · 2 PM · 1 QA

    • Laravel
    • TypeScript
    • React
    • MySQL
    • Core PHP
    • CodeIgniter
    • jQuery
  8. Full-stack development at DG School in Yerevan.

    • Built and maintained web products for the school end to end.
  9. The first long engineering role in Yerevan, running alongside the Informatics and Applied Mathematics degree at Yerevan State University - where the 8+ years start counting.

    • Engineering work held continuously through the university years.
  10. Yerevan State University

    Bachelor's degree of Informatics

    Informatics (Computer Science): Informatics and Applied Mathematics

    State diploma of higher education, Republic of Armenia.

Shipped, in production

Selected work

Simbiz lab

Education platform on a microservice architecture: courses, assignments, chat, analytics, content library, payments, RAG/LLM content generation and S3 (MinIO) media storage. Led development of eight services as Team Lead.

  • Microservices
  • LangChain + FAISS
  • CI/CD
  • Prometheus/Grafana
  • MinIO

YAVVI AI

Domain-agnostic computer vision platform for video stream analysis - detection and tracking pipeline feeding an LLM decision layer. First vertical: gas station event detection and on-site analytics.

  • YOLO
  • ByteTrack
  • ONNX
  • FastAPI
  • LLM

yavvi.ai

yavvi.ai

The company site for YAVVI AI, designed and shipped solo: a Nuxt 4 SSR landing with WebGL scenes, a hero video scrubbed by scroll position, hand-rolled charts, a services/cases/blog content layer and a lead-capture drawer wired to a transactional mail endpoint.

  • Nuxt 4 SSR
  • Three.js
  • Scroll-scrub video
  • Tailwind + SCSS
  • Nginx + systemd

cloudcompute.ru

cloudcompute.ru

Cloud GPU rental platform for AI/ML workloads - RTX 4090, H100 and A100 instances with hourly billing, personal account and invoicing.

  • GPU cloud
  • Billing
  • Personal account

Russian Express

r-express.ru

Tour operator web platform: VIP tour booking, agent personal account, and integrations with providers across the UAE, Maldives, Seychelles and beyond.

  • Travel
  • Provider integrations
  • Agent portal

Kreditka Expert

kreditka.expert

Comparison service for Russian retail banking products - cards, consumer and auto loans, deposits and FX rates from a range of banks, with selection filters, loan and yield calculators, and bank ratings from user reviews. Lead frontend developer; shipped 05.2025.

  • Fintech
  • Lead frontend
  • Product comparison
  • Calculators
  • Bank ratings

Paynovate

paynovate.com

Belgian banking platform - microservice architecture planning, backend transaction handling, admin panel and cross-service integration.

  • Fintech
  • Microservices
  • Transactions

Panika

panika.org

Real-life escape-room booking platform in Krasnodar: quest catalogue, online session booking and a personal account.

  • Booking
  • Catalogue
  • Payments

Taekwondo CV

Computer vision system for taekwondo built on YOLO/Ultralytics - athlete motion detection and tracking for automated technique analysis and scoring.

  • YOLO
  • Ultralytics
  • Motion tracking
Read the case study

Legato

App for music schools, designed and built from scratch on React Native and Laravel - scheduling, students and lesson management.

  • React Native
  • Laravel
  • From scratch

Contact

Let us build something

Have a platform to architect, a legacy system to modernise, or an AI product to get into production? I am happy to talk it through.

  • Yerevan, Armenia · GMT +4
  • Open to CTO, architecture and senior full-stack engagements