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01Context
International enterprise brands and corporations, among them premium kitchen technology (BORA) and financial services and insurance (Allianz). Reliability is a baseline requirement, product data models are multilingual and deeply nested, enterprise backends have to be integrated — and the same quality and architecture standards should apply across the entire engineering chapter.
02Architecture
Scalable web applications combining Next.js (App Router, server components), Pimcore and modern headless interfaces. Plus reusable packages, standardised deployment solutions and caching strategies at the edge and via Varnish. In parallel I drive modernisation blueprints: stateless services, the evaluation of Payload CMS, AI-assisted development workflows and automated test pipelines.
03 · impact
On top of that I am a sparring partner for chapter architecture, enablement and critical project setups. I lead my projects technically myself; as Team Manager (Teammanagerin), I also take on the organizational responsibilities within the team — currently including primary technical ownership for hoerzu.de alongside complex enterprise platform initiatives.
01Context
A new B2B SaaS platform that lets customers edit ads visually, directly in the browser, and speeds up approval and production workflows considerably. A fixed six-month mandate, from an empty repository to a production product.
02Architecture
Full technical concept and fullstack architecture from a blank slate: highly interactive frontend state management for real-time visual editing, backed by a clean, maintainable API and data structure. The internal and external development teams were fully remote and still had to deliver as one unit.
03 · impact
From Florian Wieners’ reference letter: “Through her high professional competence, her quick grasp of new topics and her wealth of ideas, Ms Ostheimer contributed significantly to the success of the project. Particularly impressive was the seamless (remote) collaboration within the team.” — translated from the German reference letter.
01Context
Media portals such as ZDF and TV Spielfilm see extreme, barely predictable traffic spikes at prime time. At the same time, retail ecosystems such as Budni demand omnichannel features, mobile and hybrid apps, and a level of accessibility that is not optional for public-facing offerings.
02Architecture
High-performance frontend and fullstack applications with TypeScript, React, Next.js and Express. Cross-platform hybrid apps with Ionic and Capacitor, including native device plugins, push notifications and PWA offline capability. The core contribution was the in-house headless CMS Cotype, which served as the foundation for numerous client projects — with primary responsibility for its architecture and ongoing development.
03 · impact
Four and a half years in-house, senior level from 2020/2021. I owned selected client streams as project lead and was at the same time a driving force behind Cotype, the CMS that many of these projects were built on.