Karol Trabalka
Software Engineer
I’m a software engineer with professional experience in building and delivering digital products since 2016. My work spans frontend and backend development, with JavaScript as my primary tool of choice, complemented by experience in Node.js, .NET, Java, and serverless architectures that prioritize flexibility, scalability, and speed to market.
Currently, I’m working as a freelancer with Dashly, a fintech startup, where I’ve led the development of their mobile app for iOS and Android using Angular. Alongside this, I’m actively contributing to projects across Angular, .NET, Next.js, Node.js, and C#.
One highlight is a custom modular platform built with Firebase and Next.js that enables small businesses to manage reservations and operations — currently serving six active businesses.
Currently, I’m working as a freelancer with Dashly, a fintech startup, where I’ve led the development of their mobile app for iOS and Android using Angular. Alongside this, I’m actively contributing to projects across Angular, .NET, Next.js, Node.js, and C#.
One highlight is a custom modular platform built with Firebase and Next.js that enables small businesses to manage reservations and operations — currently serving six active businesses.
Experience
2024 — PRESENT
Freelancer · Dashly
Software Engineer
Currently working as a freelancer at Dashly, a fintech startup, leading the development of their mobile app for iOS and Android using Angular. Also actively building and maintaining projects with Angular, .NET, Next.js, Node.js, and C#. A highlight includes a custom modular platform built with Firebase and Next.js that helps small businesses manage reservations and daily operations — currently supporting multiple businesses.
Tech:
2022 — 2024
Lead Tech Engineer · Power BI Data Analysis Tool
Technical Lead
Responsible for the overall technical solution and delivery of a Power BI–powered analytics platform. Oversaw planning, estimation, and guided team members to ensure high-quality results.
Tech:
2020 — 2022
Lead Frontend Engineer · Smart Building Ecosystem
Senior Engineer
Architected and designed multiple front-end applications for a modern smart building platform. Implemented core foundations including skeleton, state management, and micro-frontends. Introduced best practices, coding standards, and optimized existing solutions for scalability and performance.
Tech:
2016 — 2020
Early Career
Software Developer
Worked in both startups and large tech companies, building web applications and enterprise products. Gained experience across backend and frontend technologies while contributing to a wide range of projects. Additionally, took on leadership responsibilities by guiding small developer teams on select projects.
Tech:
