Description

Senior Frontend Engineer with 10 years of experience building complex React and TypeScript applications for SaaS products, internal tools, dashboards, billing workflows and operational interfaces.

I work best on frontend-heavy projects where UI state, backend APIs, product rules and customer-impacting edge cases need to line up correctly. My background includes billing and subscription workflows, refactoring long-lived codebases, improving maintainability, collaborating closely with backend/product/design and shipping production changes safely.

Industry field of expertise

Languages

English
Fluent

Workplace preferences

Can work on-site

Berlin (up to 10km)

HubSpot Germany GmbH
Senior Software Engineer
SOFTWARE PUBLISHING
August 2022 - October 2025 (3 years and 2 months)
Berlin, Germany
Owned and delivered complex frontend projects in HubSpot’s Billing domain, from scoping and implementation through testing, rollout and production release.
Led multi-phase refactors of subscription and transaction workflows, reducing frontend complexity and preparing systems for larger platform migrations.
Worked closely with backend, product and design teams on billing flows where frontend behavior impacted data correctness, customer experience and support volume.
Improved account and billing experiences through experimentation, UX
improvements, safer edge-case handling and metrics-driven product decisions.
Experimented with AI-assisted features using product metrics to evaluate which ideas should be productized.
Mentored engineers through onboarding, PR reviews, growth plans and knowledge sharing in high-risk billing areas.
Typescript React.js Technical project management
YOC AG
Team Lead Apr 2022 – Jul 2022 | Senior Software Engineer
DIGITAL AND IT
January 2020 - July 2022 (2 years and 6 months)
Berlin, Germany
Led and contributed to the development of ad management and delivery systems across frontend and backend.
Built backend services for ad creation and delivery using Node.js, gRPC, REST APIs, GCP and Redis.
Designed and implemented testable UI components for creating, customizing and previewing ads across mobile and desktop formats.
Collaborated with product to plan and ship features for complex advertising
workflows.
Mentored engineers and took an active role in engineering hiring, including candidate interviews, technical evaluation and collaboration with HR.
Tech Lead Team management Node.js Typescript Front-End development
SOFTGAMES Mobile Entertainment Services
JavaScript Developer
January 2016 - December 2019 (3 years and 11 months)
Berlin, Germany
Built internal tools and dashboards used by different departments to access operational and revenue-related data.
Developed dynamic configuration editors with forms that changed based on user input.
Created reusable React components used across the product.
Built interfaces that reduced manual operational tasks from hours to minutes.
Visualized revenue and performance data in charts and tables with filters.
JavaScript React.js