Ondřej Bárta
Sr. full-stack engineer & engineering manager

 CV    GitHub    Email
UTC+2 Prague

Work experience

2022 – Present

Engineering Manager & Sr. Full Stack Engineer

Glassnode

As an engineering manager, I grew from a small mobile team, to a greenfield portfolio product, to data delivery, up to 12 engineers across two teams. That meant coaching, setting engineering strategy, and holding the bar on engineering practices, while staying hands on across frontend, backend, and BI (anywhere from 20% to 80% of my time, depending on the needs of the team). I worked on introducing an empowered engineering culture on a new full-stack team, with trunk-based development and small, continuously shipped changes. Later, we spread the model more broadly, and I kept optimizing teams to ship faster and more reliably.

My teams at Glassnode owned the Studio, data visualization, information architecture, billing, public APIs, permissions, payments, and content pages. A server-side-rendering migration more than halved the homepage load time and enabled new products (e.g. Market Compass) to be released in a single day. A homepage rebuild got ~6x more visitors into the product (from 5% to 31% of arrivals). An in-house AI agent platform lets non-technical people safely ship to production with zero side effects (limited access & robust harness). Other work included global search, payments migrations, performance and UX improvements, internal AI tooling, external AI chat, and direct customer engineering support.

Currently, I'm designing Studio's information-architecture overhaul end-to-end, from concept and user-feedback sessions through to the final solution.

2017 – 2022

Sr. Full Stack Engineer to Engineering Manager

Bitwala / Nuri

Bitwala offered a German bank account with the possibility of investing in crypto and using your crypto with ease. I built the native apps (Android & iOS) and web client from scratch shortly after joining, which set the foundation for the entire product. From there, I grew alongside the company as it scaled to over 200,000 customers.

My responsibilities over time included releasing the native apps to the app stores, overseeing production releases across all components, and maintaining banking-related AWS services. Later, I managed the neobank team working on the banking side of the product.

Tech lead of company-wide projects, e.g. Bitwala to Nuri rebranding (managed 6 people across 3 teams), learning section within the app, standing orders, scheduled investments, etc.

2015 – 2017

Software Engineer

Jackova Továrna

Co-owned and built an on-demand custom-apparel e-shop from scratch as its sole frontend engineer. The system auto-generated ads and over 200,000 pixel-perfect assets, sending each ready-to-print design straight to the printing provider.

Client work

2019 – Present

Engineering Consultant

Kilta

Full-stack eng. and advisory work on client projects (XTND, Klarity, Enehano, and many others)

Projects

2026 – Present

TabPilot

200+ paying customers · featured on the Mac App Store

A Safari tab-search extension for iOS & macOS, featured by Apple in the App Store.

2025 – Present

GitPT

An open-source git CLI alias/hook that writes your commit messages and PR descriptions with an LLM, built for on-device models like Apple's Foundation Models, Ollama, and LM Studio. Also works with OpenAI, Anthropic, etc.

2022 – 2023

Lensta

A visual social dapp built on Lens protocol. It received multiple grants, and direct support from the Aave team. As part of this project, we've also launched a very successful verification campaign directly on the Lens protocol that generated worthwhile revenue.

Discontinued due to lack of time and capacity to manage the project.

Native apps published on Apple App Store & Google Play Store, and a web app. Used GCP on the backend.

2021 – 2023

Thamira

Mobile strategy & action game created in Unity (C#). Contains unique custom controls for magic casting mechanics, tiling mechanics for game map (islands), custom pathfinding, AI and a working multiplayer mode.

2024 – Present

ondrejbarta.com

2,768 shipped changes since 2013

My personal site as a live systems playground: a "build pulse" visualizing my real integration-event activity across every project since 2013 (via a local dbt pipeline), plus live signals from my phone streamed in near-real-time. Also serves this machine-readable CV.

Unsplash photo views4.4M
npm downloads88k