Or Delevski
CTO / VP R&D & Technology Leader
Innovative and results-oriented technology leader with 15+ years of experience in R&D, product innovation, and scaling high-performance engineering teams. Expert in cloud architecture, AI-powered solutions, automation, and mobile platforms.
About Me
Personal Information
Professional Summary
Innovative and results-oriented technology leader with 15+ years of experience in R&D, product innovation, and scaling high-performance engineering teams. Expert in cloud architecture, AI-powered solutions, automation, and mobile platforms. Proven ability to align technology strategy with business goals and lead cross-functional teams to deliver impactful, scalable products.
Professional Experience
CTO / VP R&D
2023 – PresentConstrol
- Built the company's technology organization from scratch, doubling revenue in one year through scalable architectures and automation
- Designed and implemented BI, CRM, and SaaS platforms with real-time tracking
- Introduced AI-driven solutions and workflow automation using n8n, Zapier, and MCP-based systems
- Managed 18+ professionals, leading full-stack development in Next.js, React, C#, NestJS, and Python
- Specialized in AI, computer vision, and QA automation
Head of R&D
2019 – 2023PayBox (Bank Discount)
- Led 20+ engineers across 3 teams in building fintech solutions
- Migrated monolith to microservices and designed event-driven architecture
- Saved $3M+ annually through payment optimization
- Built Tap-to-Pay, cashback, and loyalty integrations
- Managed Node.js, C#, Kotlin, Swift stacks with GCP, GKE, Jenkins CI/CD
Head of Mobile
2014 – 2019SpotOption / Dx.Exchange
- Led Android, iOS, QA teams to scale B2B fintech mobile platforms
- Achieved 10M+ downloads and 300+ white-label apps
- Introduced CI/CD automation and mobile product strategy
Featured Projects
Key projects and platforms I've built and led throughout my career, showcasing expertise across fintech, mobile, AI, and web technologies.
Playground
webInteractive code playground for experimenting with JavaScript and web technologies in a sandbox environment.
Tech Stack:
FastAPI AWS Ingestor
webA production-ready FastAPI microservice that ingests JSON, validates and transforms it, then stores the data in AWS S3 or DynamoDB. Includes unit tests, Docker support, and comprehensive error handling.
Tech Stack:
Scrape Websites
automationUniversal web scraping tool that can extract data from any website with configurable selectors and data processing capabilities.
Tech Stack:
Banano Editor
webAdvanced image editor built with Google's Nano Banana technology, providing powerful image manipulation capabilities.
Tech Stack:
Do Your Image
aiCreative image generation and manipulation tool that allows users to create custom images with AI-powered features.
Tech Stack:
OCR Extractor
automationComprehensive OCR solution that extracts text from PDFs, images, Word documents, Excel files and more with high accuracy.
Tech Stack:
Constrol SaaS Platform
webComprehensive BI, CRM, and SaaS platform with real-time tracking and AI-driven automation workflows
Tech Stack:
PayBox Fintech Solutions
fintechMicroservices-based payment platform with Tap-to-Pay, cashback, and loyalty integrations
Tech Stack:
B2B Mobile Platforms
mobileScalable mobile platforms achieving 10M+ downloads and 300+ white-label applications
Tech Stack:
More Projects & Achievements
Mobile Platforms
10M+ downloads, 300+ white-label apps across Android and iOS platforms
Cost Optimization
Saved $3M+ annually through payment optimization and architecture improvements
Team Leadership
Managed 20+ engineers across multiple teams and technologies
Get In Touch
Ready to collaborate on your next project? Let's discuss how I can help bring your ideas to life.