I'm Piotr Ostiak, a full-stack developer and architect with 20+ years of experience building everything from custom game engines to AI-powered creative platforms. I specialize in internal tools development, where I treat frontend usability and backend stability as two sides of the same coin. My expertise lies in designing seamless internal ecosystems—combining robust Node.js architectures and data-driven pipelines with highly functional interfaces that turn complex operations into intuitive workflows. Currently, I’m focused on autonomous AI agents and integrated automation that bridges the gap between design, development, and media production. I thrive on transforming intricate technical requirements into clean, practical tools that empower teams to move fast without sacrificing quality or performance.…

Piotr Ostiak

PRO

I'm Piotr Ostiak, a full-stack developer and architect with 20+ years of experience building everything from custom game engines to AI-powered creative platforms. I specialize in internal tools development, where I treat frontend usability and backend stability as two sides of the same coin. My expertise lies in designing seamless internal ecosystems—combining robust Node.js architectures and data-driven pipelines with highly functional interfaces that turn complex operations into intuitive workflows. Currently, I’m focused on autonomous AI agents and integrated automation that bridges the gap between design, development, and media production. I thrive on transforming intricate technical requirements into clean, practical tools that empower teams to move fast without sacrificing quality or performance.…

Available to hire

I’m Piotr Ostiak, a full-stack developer and architect with 20+ years of experience building everything from custom game engines to AI-powered creative platforms. I specialize in internal tools development, where I treat frontend usability and backend stability as two sides of the same coin.

My expertise lies in designing seamless internal ecosystems—combining robust Node.js architectures and data-driven pipelines with highly functional interfaces that turn complex operations into intuitive workflows.

Currently, I’m focused on autonomous AI agents and integrated automation that bridges the gap between design, development, and media production. I thrive on transforming intricate technical requirements into clean, practical tools that empower teams to move fast without sacrificing quality or performance.

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Skills

Experience Level

C++
Expert
Figma
Expert
Node.js
Expert
Adobe After Effects
Expert
React JS
Expert
SQL
Expert
TypeScript
Expert
API
Expert
C#
Expert
Unity
Expert
HTML5
Expert
Python
Expert
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Language

Polish
Fluent
English
Fluent
French
Beginner

Work Experience

Founder & Architect at GridLight AI (BannerBros)
January 1, 2025 - Present
Building autonomous AI agents that take URLs as input, extract content, and generate fully animated, data-driven ad campaigns automatically. End-to-end pipeline: content ingestion, LLM orchestration, generative UI, creative output, and backend API coordination. Goal: Replace traditional marketing dashboards with AI automation.
Head of Technology at DISXT
January 1, 2017 - January 1, 2024
Architected proprietary ad-tech engines for dynamic creative optimization (DCO) at scale, including backend architecture and API design for high-throughput creative processing. Developed key tools: Grid8Creator (Figma plugin for exporting designs to dynamic banner/DCO formats), Video Dasher (custom FFmpeg wrapper for high-volume video processing and ad insertion), Video Renderer (automation pipeline using Adobe tools for programmatic creative production). Led full-stack implementation bridging design (Figma/After Effects) with backend/frontend (Node.js, React, TypeScript).
Co-Founder & Game Developer at Khanti Games
January 1, 2005 - January 1, 2012
Founded independent game studio in the pre-Unity era. Built custom C++ game engines with integrated physics systems using OpenGL. Delivered multiple game titles focused on performance and interactive mechanics.

Education

M.Sc. in Computer Science at West Pomeranian University of Technology, Szczecin, Poland
January 11, 2030 - January 1, 2013

Qualifications

Add your qualifications or awards here.

Industry Experience

Gaming, Media & Entertainment, Software & Internet, Professional Services, Computers & Electronics
    paper BannerBros Website

    Portfolio: BannerBros (High-Performance Digital Ads)

    Role: Full-Stack Development & Creative Technology
    Project Link: [https://www.twine.net/signin

    The Project Overview

    BannerBros is a specialized creative technology hub focused on delivering ultra-high-performance HTML5 display ads, interactive banners, and rich media experiences for global brands and agencies. The mission was to bridge the gap between heavy, unoptimized creative assets and the strict technical requirements of modern ad servers (Google DV360, Sizmek, Adform).

    Key Solutions & Technical Achievements

    • Weight-Optimized HTML5 Animation: Developed custom animation workflows using GSAP (GreenSock) and lightweight CSS transitions to ensure fluid 60fps motion while staying under strict 150kb–300kb initial load limits.
    • Dynamic Creative Optimization (DCO): Implemented data-driven logic to allow banners to swap content (images, CTAs, prices) in real-time based on user behavior or geographical location.
    • Cross-Platform Compatibility: Engineered a “build once, deploy everywhere” framework, ensuring pixel-perfect rendering across all major browsers and mobile devices.
    • Rapid Scalability: Built a system to handle high-volume “master-to-adaptation” workflows, allowing for the quick generation of 30+ different localized sizes from a single master design.

    The Impact

    By prioritizing technical cleanliness and performance, BannerBros helps clients achieve higher Click-Through Rates (CTR) and lower bounce rates by ensuring ads load instantly and interact seamlessly. This project serves as a benchmark for how creative design meets strict engineering constraints in the AdTech space.