Building products that solve real problems.
I'm David — I build web applications, data platforms, and tools across frontend, backend, and infrastructure. I enjoy turning complex problems into reliable software.
A bit about me.
I'm a software engineer focused on building and improving production systems across the stack — from architecture and implementation to deployment and optimization.
I enjoy building software that solves real problems — whether that's customer-facing products, internal tools, or custom systems tailored to specific workflows. Recently, I helped deliver an embedded analytics platform combining web development and data engineering to handle 1B+ records across 5,000+ customer databases.
Beyond application development, I enjoy working across different layers of software — from designing APIs and data models to improving infrastructure, performance, and reliability. I also have experience building data platforms with technologies like Snowflake and dbt. I care about ownership, clean architecture, and creating software that delivers real value.
- TypeScript / JavaScript
- SQL
- PHP
- C++
- React / Next.js
- Vue.js
- Tailwind CSS
- Node.js
- PHP / Nette
- REST APIs
- Snowflake / dbt / Superset
- PostgreSQL
- MariaDb/MySQL
- AWS / Docker / Redis
- CI/CD
- Prisma
- Doctrine
Projects, up close.
A mix of production platforms and systems work. Tap any card for the full breakdown — stack, highlights, and screens.
A short timeline.
Work
- Apr 2025 — PresentFull-timeSoftware EngineerStoryous
Led the development of Premium Analytics, processing 1B+ records from 5,000+ databases. Reduced Snowflake costs by 50% and improved dashboard load times from 20s to 3.46s through query optimization and caching. Also improved the large PHP (Nette) admin portal and maintained backend microservices.
- Aug 2023 — Apr 2025Part-timeFull-stack DeveloperKlimamont Kopelent s.r.o.
Built and maintained a custom internal system supporting core operations, including orders, contracts, scheduling, and document workflows. Modernized the company's web presence improving UX and mobile experience.
Education
- 2022 — 2025Faculty of Information Technology, CTUSoftware Engineering & IT Management
Algorithms, Database Systems, Advanced SQL, Computer Networks, Operating Systems, Software Engineering, Project Management.
- 2017 — 2021František Křižík Secondary School of Electrical EngineeringHigh School Diploma
Focus on electrical engineering and informatics.
- Certifications
First Certificate in English (B2) — Cambridge English, 2023 · Driving License, Cat. B
Let's build
something good.
Open to new opportunities, interesting projects, or just a good conversation about engineering. The fastest way to reach me is email.