14.01.2026 aktualisiert

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Full-Stack Web Developer & Frontend-Lead | Expertise in React, Next.js, Node.js

Feldkirch, Österreich
Deutschland +3
info: Deutschland, Österreich, Schweiz, Liechtenstein
Feldkirch, Österreich
Deutschland +3
info: Deutschland, Österreich, Schweiz, Liechtenstein

Profilanlagen

leon_oberwaditzer_cv.pdf

Skills

JavaScriptAPIsArchitekturAutomobilindustrieMicrosoft AzureProjektplanungE-CommerceSEOPythonPostgreSQLProjektmanagementMongoDBNode.jsScrumQualitätsmanagementNext.jsTypeScriptWeb ApplikationenReact.jsFull Stack EntwicklungGraphQLFront EndTechnisches GeschickDocker
I am Leon Oberwaditzer, an experienced Senior Frontend and Full-Stack Developer specializing in e-commerce solutions and web applications for the automotive industry. With over seven years of freelance experience, I have a proven track record in leading frontend projects and developing high-performance web applications. My expertise covers a wide range of modern technologies, including:
  • Technical Skills: JavaScript, TypeScript, React, NextJS, NodeJS, MongoDB, PostgreSQL, Azure Cloud, Fastly, Docker.
  • Project Management: Leading development teams, project planning and execution, ensuring quality standards.
  • Architecture and Development: Developing scalable architectures, setting up reusable packages, API integration and management
  • Specific Project Experiences:
    • I developed three e-commerce stores for KTM and Husqvarna using NextJS, Azure Cloud, Fastly, and Turborepo.
    • I created a 360-degree feedback platform for the automotive industry using NextJS, tRPC, PostgreSQL, and Docker.
    • I successfully optimized SEO and reduced the initial load time of an existing online store by over 40%.
    • At thyssenkrupp Automotive, I developed data-driven web applications using React, GraphQL, NodeJS, Python, and MongoDB.

I am fluent in German and English and possess strong communication and coordination skills, enabling effective collaboration with clients and team members.

Erfahrung

Berufserfahrung5 - 10 Jahre
Freelancer seit2018

Sprachen

DeutschMutterspracheEnglischverhandlungssicher

Projekthistorie

Frontend Lead Developer

MassiveArt

Internet und Informationstechnologie

50-250 Mitarbeiter

● Led and contributed to three different projects, including greenfield setups across healthcare, telecommunications, and logistics sectors.

● Modernized and refactored existing codebases to significantly reduce error rates and improve maintainability.

● Conducted training sessions and onboarding workshops for fellow frontend developers to ensure consistent development standards.

● Utilized a modern tech stack including TypeScript, React, TanStack Router & Query, and Tailwind CSS.

● Worked in agile Scrum teams, leveraging tools such as Jira and Confluence for efficient project management and documentation.

Frontend Lead and Developer

KTM

Automobil und Fahrzeugbau

1000-5000 Mitarbeiter

  • Developed three e-commerce stores for KTM and Husqvarna, creating scalable architecture for future B2C/B2E shops.
  • Architected solutions using NextJS, tailwind, Fastly, and Turborepo.
  • Set up reusable packages, enhancing project efficiency and maintainability.
  • Led a team of 7 front-end developers, ensuring high-quality implementations and effective project planning.
  • Responsible for CI/CD-pipelines by using Azure DevOps and Azure Cloud.
  • Integrated the OpenAPI interface from SAP Commerce, improving the API management and interaction capabilities.
  • Collaborated in Scrum ceremonies and used Azure DevOps for tracking, supporting sprint planning, daily stand-ups, reviews, and retrospectives as a tech lead.

Frontend Consultant

Internet und Informationstechnologie

10-50 Mitarbeiter

  • Consulting on the creation of a dynamic hosting platform.
  • Creation of the architecture with Docker, React and micro-frontends.

Full-Stack Developer

hirschmann Automotive

Automobil und Fahrzeugbau

1000-5000 Mitarbeiter

  • Developed a 360-degree feedback platform for the automotive industry using NextJS, tRPC, PostgreSQL, and Docker.
  • Implemented CI/CD pipelines using GitHub and Hetzner Cloud for hosting.
  • Created modules for anonymous feedback, learning type questionnaires, and mood status tracking.
  • Coordinated closely with customers and team members to meet project requirements.

Frontend Developer

Antiloop

Sonstiges

10-50 Mitarbeiter

  • Worked on three different e-commerce stores for different clients using technologies such as React, Redux, NextJS, Shopware and Frontastic.
  • Responsible for SEO and reduced initial page load of existing store by over 40%.
  • Supported project where the store had over 1 million products and different themes depending on the product.
  • Used the agile Kanban method in combination with Jira.

Full-Stack Developer

Automobil und Fahrzeugbau

1000-5000 Mitarbeiter

  • Contributed to a data-driven development project, building web applications with React, GraphQL, NodeJS, Python, and MongoDB.
  • Standardized and processed millions of data files from various plants into a NoSQL database.
  • Developed modules for analyzing measurement timelines, correlations, product batch trees, and acoustics.

Full-Stack Developer

Sonstiges

< 10 Mitarbeiter

  • Creation of a mobile fitness application using React Native and Native platforms.
  • Backend development using NodeJS, PostgreSQL and Docker.

Full-Stack Developer

Automobil und Fahrzeugbau

1000-5000 Mitarbeiter

  • Creation of a support portal using React, C# and MSSQL.
  • Developed a data export web application using Java and Handlebars.

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