Hi, I'm

Stefan Weiß

IT Specialist for Application Development

Focus on object-oriented software development. Solid knowledge in Java, Kotlin and modern frontend technologies. Structured, reliable way of working and high standards for clean, maintainable code.

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About Me

Prospective IT specialist for application development with a focus on object-oriented software development. Solid knowledge in Java, Kotlin (incl. Android) and modern frontend technologies. Structured, reliable way of working and high demand for clean, maintainable code.

I treat code as a long-term asset: readable structure and consistent patterns matter more to me than quick fixes. I like to finish what I start and keep quality consistent.

I learn by doing and by reading documentation and code. When something is unclear, I dig in until I understand the cause, not just the fix.

I communicate clearly about progress and blockers. I’m comfortable asking questions and giving feedback in a direct, constructive way.

I break problems into smaller steps, check assumptions, and prefer simple solutions that are easy to change later.

Stegine
a portmanteau of Stefan and Engineering

Skills

I focus on backend and frontend development with an emphasis on clean architecture and long-term maintainability. I prefer understanding how systems fit together rather than only using frameworks, and I approach problems in a structured way.

Languages

JavaKotlinC#C++TypeScriptLua

Backend

Spring BootREST APIsASP.NET

Frontend

ReactAngularAndroid

Databases

MariaDBPostgreSQLMongoDBSQLiteRedis

DevOps & Tools

GitPerforceDockerTeamCityAzure DevOpsGitLabFigmaAdobe XD

How I Work

  • I prioritise clear, readable architecture over clever shortcuts.
  • I debug by understanding root causes, not only symptoms.
  • I value long-term maintainability and consistent structure.
  • I break down complex problems into smaller, testable parts.
  • I prefer clarity in code and communication.

Languages

Level (CEFR)
  • Deutsch
    C2
  • Englisch
    B2

Projects

Gebäudemanagement Marx

Live

The goal was to build a professional, accessible website for the local building management company Marx. The site should clearly present services and company profile, build trust, and offer contact options, with a focus on usability across devices, clear structure, and straightforward maintenance.

Problem

  • The company already had a WordPress site that was outdated in design and technology and no longer met requirements for presentation and reliability.
  • Content and structure had to be redefined and set up properly.
  • Site had to work well on mobile and load quickly.
  • Deployment had to be simple and reproducible.

Solution

  • Structured information architecture and design in Figma with client feedback.
  • React + TypeScript SPA with semantic HTML and responsive layout.
  • Docker-based build and deployment for consistent hosting.
  • Focused on accessibility (contrast, focus, structure) and performance.

My Contribution

Together with my colleague Oliver Aciu: he led the research and was key in client communication. I was responsible for design in Figma, implementation, Docker setup, and deployment.

Tech Stack

React, TypeScript, Docker, Figma

View Live

Fewozeno – Booking & Occupancy Plan

Internal tool

Fewozeno manages 90+ vacation rentals and needed a central digital solution for bookings and occupancy. Many processes were manual or scattered; the goal is a single source of truth that simplifies planning and allocation and fits into existing workflows.

Problem

  • Occupancy plans are currently still maintained entirely on paper – Fewozeno is an established company and aims to drive digitalization from 2026 onward.
  • Many properties with no single source of truth for availability.
  • Manual coordination was error-prone and time-consuming.
  • Solution had to fit existing workflows.

Solution

  • Central data model for properties, bookings, and occupancy.
  • Overview and calendar-style views for quick orientation.
  • Structured input and validation to reduce errors.
  • Ongoing iteration based on real usage and feedback.

My Contribution

Full-stack design and implementation: data model, backend logic, and frontend for the booking and occupancy views. Work in progress.

Experience

Apprenticeship09/2023 – Present

IT Specialist for Application Development

FleetGO Ainring (formerly Wanko Informationslogistik GmbH)

Ainring

C++, C#, Angular, TypeScript, ASP.NET, CI/CD

Key activities

  • Development of warehouse and tour planning software (C++, C#)
  • Involvement in internal projects with Angular, TypeScript and ASP.NET
  • Setup and maintenance of CI/CD pipelines
Internship05/2022 – 05/2022

IT / System Integration

District Office Berchtesgadener Land

Bad Reichenhall

IT support, system integration

Key activities

  • IT support as system integrator
  • Setup and maintenance of workstations
  • Insights into IT infrastructure and administrative processes
Internship10/2021 – 10/2021

Retail / Store Operations

adidas Outlet Store

Piding

Key activities

  • Goods receipt, warehouse organization and product care
  • Customer advice and support in the sales area

Contact

I'm open to new opportunities and would love to hear from you.

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