07.09.2026 aktualisiert

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UX Engineer & Frontend Developer with HCI Specialization

Leipzig, Deutschland
Nur Remote
M.Sc. Human-Computer Interaction
Leipzig, Deutschland
Nur Remote
M.Sc. Human-Computer Interaction

Profilanlagen

Stefan_Stretz_Freelance_CV_DE.pdf

Über mich

Human–Computer Interaction specialist with 10+ years of experience spanning UX, software engineering, and interface development. Focused on building intuitive, accessible, and robust products for complex information systems—especially search- and metadata-driven platforms in scientific contexts.

Skills

Web InterfacesUser Experience (UX)Ui-DesignRequirements EngineeringResponsive WebdesignUI TestingUser-Centered DesignModern UiReact.jsVue.jsUX WritingKendo UiFront EndRestful ApisRich Ui
UX Architecture & Information Design
Design of intuitive information architectures, navigation models and user flows for complex, data-rich applications.
Frontend Engineering with TypeScript & Vue
Development of accessible, maintainable and responsive web applications using TypeScript, Vue, Nuxt and modern component architectures.
Human–Computer Interaction & User-Centred Design
Application of HCI methods, user research and usability principles to translate complex requirements into effective product interfaces.
Complex Search & Data Interfaces
Design and implementation of search, filtering and exploration interfaces for metadata-driven systems using Elasticsearch and structured data models.
Design Systems & Component Architecture
Development of reusable UI components, design tokens, interaction patterns and documented component systems.
Accessibility & Inclusive Design
Implementation and evaluation of accessible interfaces based on WCAG, semantic HTML, keyboard navigation and assistive-technology requirements.
Requirements Engineering & System Modelling
Analysis of functional and technical requirements, data structures, workflows and dependencies across frontend, backend and domain teams.
API Integration & Full-Stack Web Development
Integration of REST APIs and development of web applications using Node.js, PHP, PostgreSQL and API-driven architectures.
Testing, CI/CD & Maintainable Delivery
Experience with automated testing, code reviews, documentation, continuous integration and reliable delivery of production web applications.

Erfahrung

Berufserfahrungmehr als 10 Jahre
Freelancer seit2025

Sprachen

DeutschMutterspracheEnglischverhandlungssicher

Projekthistorie

Research Developer — UX & Frontend

TIB (Leibniz Information Centre for Science and Technology)
Lead UX, technical conception, and interface development for AVefi, a next-generation research & discovery platform for audiovisual heritage. Owned information architecture, interaction design, accessibility, and complex search interfaces based on Elasticsearch. Drove product strategy, requirements engineering, and data-quality processes across multiple stakeholder groups in the cultural heritage sector.

Software Developer

Kunert Business Software GmbH
Web application development in a business-software environment with API-driven workflows (REST/Web Services). Long-term feature development and maintenance with a focus on reliability and continuity in production systems.

Frontend Developer

Datenwerk
Frontend implementation for data-driven products; emphasis on clean UI structure and maintainable CSS.

Web Developer

Sivantos Group
Web development in enterprise context with PHP and CSS-driven UI implementation.

Kontaktanfrage

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