Freelancer profile translated to English.
Back to original languageAbout Stephan
I am a Senior Fullstack Developer and Managing Director of WebPiranha GmbH with over 18 years of experience in web development. My focus is on backend architecture, API development, and scalable web applications for SMEs and digital business models.
I support companies in developing stable and performant web solutions or modernizing existing systems. I am responsible for technical conception, architecture planning, and clean, sustainable implementation.
My specialties:
• Laravel & PHP Backend Development
• REST API Design & Integrations
• Java & Business Logic
• Database Design & Optimization (MySQL / SQL)
• Performance Optimization & Refactoring of existing systems
I work in a structured, solution-oriented manner with entrepreneurial understanding. Through my experience as a managing director, I understand not only code but also business processes, efficiency, and scalability.
If you are looking for an experienced developer who takes responsibility and reliably accompanies projects from conception to implementation, I look forward to your inquiry.
German
Native or bilingual
English
Fluent
Portuguese
Native or bilingual
French
Conversational
Spanish
Fluent
Remote only
Primarily works remotely
Experience
- WebPiranha GmbHManaging Director & Lead DeveloperAugust 2024 - Today (2 years)Overall responsibility for delivery: planning, implementation, quality, acceptanceDevelopment and modernization of web applications (Fullstack)Backend/API focus: interfaces, data models, processes & automationsPerformance optimizations and stabilization of existing systemsConsulting & technical conception for SME projectsTechnologies: Laravel, PHP, Java, JavaScript, MySQL/SQL, REST APIs, HTML/CSS, CMS, skills=[]
- Algomia GmbHApplication Developer (Frontend & Backend)November 2022 - July 2024 (1 year and 8 months)Frontend and backend development in customer/project contextAPI interfaces as well as machine learning interfaces (integration)Contribution to algorithms/logic parts and technical featuresIndependent work, structured implementation, reliable delivery, skills=[SkillTranslatableContent(id=backend-service-development, type=FUNCTIONAL, name=backend-service-development), SkillTranslatableContent(id=external-api-integration, type=FUNCTIONAL, name=external-api-integration), SkillTranslatableContent(id=Machine learning, type=GLOBAL, name=Machine learning), SkillTranslatableContent(id=künstliche Intelligenz, type=GLOBAL, name=artificial intelligence), SkillTranslatableContent(id=Marketing, type=GLOBAL, name=Marketing)]
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Education
- Application Developer (IT Specialist EFZ)WISS2024Praxisorientierte Ausbildung mit Fokus auf Softwareentwicklung, objektorientierter Programmierung und Fullstack-Webentwicklung. Entwicklung von Backend- und Frontend-Anwendungen, Datenbankdesign (SQL), API-Programmierung sowie Software-Architektur-Grundlagen. Umsetzung von Projekten im Bereich Webapplikationen, Schnittstellenintegration und systematisches Testing. Zusätzlich vertiefte Kenntnisse in Java, PHP, JavaScript sowie strukturiertes Projektmanagement.
- Webdesign & DevelopmentSAE Institute Zurich2014Fundierte Ausbildung in Webdesign und Webentwicklung mit Schwerpunkt auf HTML, CSS, JavaScript und Benutzeroberflächen. Konzeption und Umsetzung responsiver Websites sowie Grundlagen in UX/UI, Performance-Optimierung und technischer Umsetzung digitaler Projekte.