Efstathios Tsanidis
@efstathiostsanidis
Full-Stack-Developer mit Fokus auf React, Next.js und skalierbare, wartbare Webanwendungen.
What I'm looking for
Ich bin Full Stack Web Developer mit fundierter Erfahrung in der Konzeption und Umsetzung moderner Webanwendungen mit React und Next.js. Dabei lege ich großen Wert auf saubere Frontend-Architektur, durchdachte Backend-Logik sowie strukturierte, skalierbare API-Architektur mit Authentifizierungsprozessen und klaren, erweiterbaren Datenmodellen.
In meinen Projekten kombiniere ich datenbankgestützte Persistenz mit MongoDB und Mongoose, baue geschützte Routen und Authentifizierung mit NextAuth.js & GitHub OAuth auf und implementiere CRUD-Operationen über Next.js API Routes und REST APIs. Zusätzlich schätze ich wartbaren Code und modulare Projektstrukturen, was ich mit SWR-Caching, responsive UI mit styled-components, Bild-Workflows über Cloudinary, Kartenansichten mit Leaflet/OpenStreetMap, sowie Tests mit Jest und Testing Library unterstreiche—mit dem Ziel, in einem professionellen Full-Stack-Umfeld produktive Webanwendungen mitzugestalten.
Experience
Work history, roles, and key accomplishments
Full Stack Web Developer
Neuefische GmbH
Jan 2025 - Jan 2026 (1 year)
Developed modern full-stack web applications with React and Next.js, including structured API architecture, authentication flows, and database-backed persistence with MongoDB. Built responsive, modular code with maintainable project structure using Git/GitHub and testing-focused workflows.
Versandmitarbeiter
Amazon
Jan 2020 - Jan 2025 (5 years)
Optimized daily warehouse/shipping workflows by identifying errors and improving small process steps, while resolving unexpected issues using structured troubleshooting. Collaborated in coordinated team operations and consistently worked toward strict KPI targets.
Computer Service & Repair
Fernschule Weber
Jan 2023 - Jan 2024 (1 year)
Gained practical experience in hardware diagnostics, OS installation, and system maintenance. Strengthened structured troubleshooting and problem-solving habits through real-world technical support tasks.
Education
Degrees, certifications, and relevant coursework
neuefische GmbH
Full Stack Web Developer (training), Full Stack Web Development
2025 - 2026
Intensive full stack web development training using React and Next.js, including JavaScript and MongoDB. Covered API architecture, authentication processes, version control, and development of multiple responsive, database-backed web applications with structured, maintainable code.
Fernschule Weber
Technical training (course), Web Development (React/Next.js)
2023 - 2024
Training that included front-end technologies such as React and Next.js, along with JavaScript and HTML. Also covered hardware diagnostics, OS installation, and system maintenance/troubleshooting skills.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Salary expectations
Job categories
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