Professional Experience

Detailed work history and project highlights.

Open for Opportunities

Available Now
Remote / Hybrid
  • Currently exploring new opportunities as a Senior Frontend Engineer.
  • Open to remote or hybrid positions with innovative teams working on challenging technical problems.
  • Particularly interested in roles involving complex UI/UX challenges, performance optimization, design systems, or team leadership.
  • Available for full-time positions starting immediately.
Balyasny Asset Management logo

Senior Frontend Engineer

Balyasny Asset Management

Mar 2025 - Feb 2026
Warsaw
  • Developed internal dashboards for portfolio risk analysis used by hedge fund risk management teams.
  • Built data-heavy interfaces visualizing large datasets (tens of thousands of rows) using React, Highcharts and AG Grid.
  • Improved dashboard performance through rendering optimizations (memoization) and more efficient data fetching.
  • Collaborated closely with risk managers to translate financial requirements into reliable internal tools.
GroundFog logo

Senior Frontend Developer

GroundFog

Dynamic Solutions
Feb 2023 - Mar 2025
Warsaw

Client: SIEMENS

  • Led frontend development for a multi-language enterprise platform powering Siemens’ global web presence (including siemens.com) using Vue, TypeScript and GraphQL.
  • Acted as frontend lead within a team of four engineers, mentoring two developers and reviewing most pull requests.
  • Defined coding standards and frontend architecture while coordinating development across multiple applications.
  • Designed and implemented a shared design system (~30 reusable components) improving UI consistency across products.
Diva-E logo

Senior Frontend Developer

Diva-E

Dynamic Solutions
Sep 2022 - Feb 2023
Warsaw

Client: MANN+HUMMEL

  • Developed frontend features for a multi-market e-commerce platform using React, TypeScript and GraphQL, collaborating closely with design and product teams to improve product browsing and search experiences.
Dynamic Solutions logo

Senior Frontend Developer

Dynamic Solutions

Dynamic Solutions
Jan 2021 - Sep 2022
Warsaw
  • Owned frontend development of a React-based CMS and collaborated with backend engineers on its pluggable architecture.
  • Designed and implemented a drag-and-drop page editor supporting vertical and horizontal layouts, inline editing and component tree management using React and TypeScript.
  • Mentored a small frontend team (2–3 engineers) and contributed to frontend architecture decisions.
OLX Group logo

Software Engineer

OLX Group

Dec 2019 - Jan 2021
Poznań
  • Developed authentication systems for a large-scale online marketplace platform using Kotlin, Java and AWS Cognito.
  • Implemented core user flows including login, registration and password recovery.
  • Migrated authentication infrastructure to AWS Cognito and introduced security features such as suspicious login verification.
  • Built internal account recovery tools used by customer support teams and improved observability using NewRelic.
No Spoon Tech Lab logo

Full-stack Web Developer

No Spoon Tech Lab

Jun 2018 - Aug 2019
Spain
  • Developed a real-time chat system for an online gaming platform using the XMPP protocol, implementing messaging interfaces with React and KotlinJS.
Appchance logo

Junior Frontend Developer

Appchance

Jan 2018 - Jun 2018
Poznań
  • Developed frontend features for multiple client projects, contributing UI components across several web applications.
  • Implemented UI components and client-side features using JavaScript and Ember.js across multiple products.
Pearson IOKI logo

Junior Java Developer

Pearson IOKI

Jul 2016 - Jan 2018
Poznań
  • Developed REST APIs for an e-learning platform as part of a lightweight microservice architecture using Java, Kotlin, REST and MongoDB.
  • Worked in cross-functional Scrum teams (~20 engineers across two collaborating teams).