You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Oliver StadieOS

Oliver Stadie

Senior Full-Stack Web Developer

€640/day
Berlin, DE
15+ years

Average response time: 1 hour

About Oliver

20+ years of Experience as Senior Full-Stack Web Developer

I’m a well-organized, broad-minded, passionate and responsible IT professional. Focus on aligning technical solutions with business objectives. Experienced in planning, designing, implementing, testing, deploying and maintaining web apps with various technology stacks.
  • German

    Native or bilingual

  • English

    Fluent

  • Chinese

    Basic

Can work on-site
Berlin (up to 50km), München (up to 50km), Frankfurt am Main (up to 50km), Düsseldorf (up to 50km), Hamburg (up to 50km)

Experience

  • Personal Project
    Full-Stack Developer
    DIGITAL AND IT
    June 2025 - Today (1 year)
    Berlin, Germany
    Designed and developed a modular Angular web application in an Nx monorepo to showcase projects and skills.
    Built a taxonomy-based matching engine and search layer to rank projects and skills by full and partial matches.
    Implemented a web worker–powered search for responsive filtering and progress reporting.
    Structured the codebase into reusable feature, data-access and UI libraries with SSR-ready targets.
    Established a robust quality workflow with unit tests, E2E tests, linting, formatting, commit linting and CI/CD via GitHub Actions.
    Created a component library with Storybook and ensured responsive design and accessibility.
    Angular Typescript Nx CI/CD Storybook
  • Oliver Stadie IT GmbH
    Project Manager & Full-Stack Developer
    EDUCATION AND E-LEARNING
    August 2024 - Today (1 year and 10 months)
    Berlin, Germany
    Developed an AI-powered language learning mobile application capable of generating picture-based stories with accompanying audio across multiple languages. Solely responsible for the entire application lifecycle, including planning, development, testing, maintenance, and legal aspects. The app adapts automatically to users' learning levels and provides extensive customization for reading and listening comprehension training. Implemented adaptive learning algorithms, multi-language support, user progress tracking and built the scalable backend on AWS with Java Spring Boot while delivering a cross-platform React Native frontend. Integrated multiple AI providers and AWS services (DynamoDB, S3, API Gateway, Elastic Beanstalk, CDK) to power content generation and infrastructure, ensuring high quality and maintainability.
    AWS React Native Java Spring Boot OpenAI DynamoDB
  • Large Lottery Company
    Web Developer & Technical Consultant
    E-COMMERCE
    August 2021 - July 2022 (11 months)
    Berlin, Germany
    Maintained and enhanced an enterprise lottery platform with a modular micro‑frontend architecture and custom frontend framework serving multiple lottery websites. Delivered new features and performance improvements across Angular and NestJS microservices, integrating Node.js APIs and Nx libraries for scalable development. Built a bespoke CI/CD and performance monitoring tool using Jenkins, Lighthouse, Puppeteer, and Web Vitals to track and optimise page speed and user experience across the platform. Provided technical consulting to developers and management on micro‑frontend strategy, modular design, and performance optimization. Deployed and orchestrated Docker/Kubernetes services and collaborated within a large Scrum team using Jira, Confluence, and agile practices.
    Angular CI/CD Nx Node.js Kubernetes

Recommendations

Be the first to recommend Oliver

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Diplom Degree in Computer Science
    Humboldt Universität zu Berlin
    2015
    Grade: Very Good Subsidiary Field: Engineering Science

Skill set

Categories