My Projects

AI-Powered Language Learning App Mobile & Web Application

Revolutionary language learning app that generates picture-based stories using AI, automatically adapting to user learning levels. Full-stack ownership • AI story generation • Multi-platform deployment • Adaptive learning algorithm

JavaSpring BootReact NativeAWSOpenAIExpo
Enterprise Lottery Platform Micro-Frontend Web Application

Maintenance and improvement of complex lottery websites with custom frontend framework and Micro-Frontend architecture. Custom CI/CD tool development • Web vitals optimization • Team consulting • Technical project management

Angular 13Node.jsNestJSTypeScriptRxJSnx
Custom E-Commerce Framework Development E-Commerce Web Application

Building and maintaining online shops for 3rd party customers using a major e-commerce company's custom framework. Multi-client platform development • Cross-team collaboration • Custom framework expertise • Designer integration

AngularNode.jsExpressTypeScriptRxJSnx
Insurance Calculation & Contract Platform Web Application

Complex insurance calculation website with contract closing functionality and advanced form validation. Complex form development • Insurance price calculation • Data verification • Custom component library usage

AngularTypeScriptSASSHTML5CSSJavaScript
B2B Financial Portfolio Management Platform B2B Web Application

Backend development for banks and portfolio managers to manage financial products with REST APIs and microservices architecture. Microservices architecture • REST API development • Message broker implementation • CI/CD setup

Node.jsExpressGraphQLTypeScriptMochaChai
Flight Booking Application Frontend Web Application

Frontend maintenance and improvement of high-traffic flight booking application in Scrum environment. High-traffic optimization • Multi-team coordination • Scrum implementation • Performance under pressure

AngularJSSASSHTML5CSSJavaScriptjQuery
Self-Driving Car Control Demo App Cross-Platform Mobile Application

Demo application for controlling autonomous vehicle prototype with route programming and media control capabilities. Autonomous vehicle integration • Cross-platform development • UI/UX collaboration • International teamwork

AngularTypeScriptHTML5CSSJavaScriptIonic
Freelancing IT Professional Various Projects

Long-term freelancing career delivering diverse IT solutions across multiple industries and technologies. 25+ years experience • Multi-industry expertise • Technology adaptation • Independent project delivery

Various TechnologiesWeb DevelopmentMobile DevelopmentBackend SystemsFrontend FrameworksDatabase Systems
Skills

General

MicroservicesMicro FrontendsRESTGraphQLScrumAgile

Frontend

AngularAngular 13AngularJSReact NativeTypeScriptJavaScript

Backend

Node.jsExpressNestJSJavaSpring BootMongoDB

Testing and QA

JestMochaChaiJasmineKarmaCypress

Cloud & Infrastructure

AWSS3DynamoDBCDKCloudFormationCloudWatch

DevOps & Build & CI/CD

JenkinsGitHubGitLabBitBucketTFSnx

Tools and Libraries

SentryLighthouseWeb VitalsPuppeteerRedashDataDog

Misc

CordovaExpoXCodeiOS
Oliver Stadie Profile Photo
Oliver StadieBerlin • Germany Full-Stack Web and App Developer

Well-organized, broad-minded, passionate and responsible IT professional. Focus on aligning technical solutions with business objectives.

Personal Information
Born
1984 (40 years)
Languages
GermanEnglishChinese
Community & Writing
Education
Humboldt Universität zu Berlin
2006 - 2015
Grade: Very Good
Subsidiary Field: Engineering Science
Professional Focus

Experienced in planning, designing, implementing, testing, deploying and maintaining web applications with various technology stacks. See portfolio above for detailed project information and technical expertise.

Contact Me
+49 (1520) 28 25 986