My Projects

AI-Powered Language Learning App

Mobile App
Revolutionary language learning app that generates picture-based stories using AI, automatically adapting to user learning levels.
Full-stack ownership • AI story generation • Automatic internationalization • Adaptive learning algorithm
JavaSpring BootReact NativeAWSOpenAIExpoTypeScriptReduxSentryGitHubnpm

Enterprise Lottery Platform

Web App
Maintenance and improvement of complex lottery websites with custom frontend framework and micro-frontend architecture.
Custom CI/CD tool development • Web vitals performance optimization • Technical consulting
AngularNode.jsNestJSTypeScriptRxJSNxSCSSHTMLCSSJestCypressSentry

Custom E-Commerce Framework Development

Web App
Building and maintaining online shops for third-party customers using a major e-commerce company's custom framework.
Multi-client platform development • Cross-team collaboration • Custom CMS integration • Regular on-time delivery • Analytics • SEO
AngularNode.jsExpressTypeScriptRxJSNxSCSSHTMLCSSJestJasmineCypress

Insurance Calculation & Contract Platform

Web App
Complex insurance calculation website with contract closing functionality and advanced form validation.
Complex form development • Insurance price calculation • Data verification • Custom component library usage
AngularTypeScriptSASSHTML5CSSJavaScriptStencilFractalLodashJasmineKarma

B2B Financial Portfolio Management Platform

Web App Backend
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.jsExpressGraphQLTypeScriptMochaChaiJasmineJestRabbitMQMongoDBDocker

Flight Booking Application Frontend

Web App
Frontend maintenance and improvement of high-traffic flight booking application in Scrum environment.
High-traffic, high-revenue environment • Multi-team coordination • Scrum implementation
AngularJSSASSHTML5CSSJavaScriptjQueryLodashnpmGruntBowerJasmineKarma

Self-Driving Car Control Demo App

Mobile App
Demo app for controlling cutting-edge autonomous vehicle prototype with route programming and media control capabilities.
Autonomous vehicle integration • Ahead of time delivery • Cross-platform development • UI/UX collaboration • International teamwork
AngularTypeScriptHTML5CSSJavaScriptIonicCordovaGitLabnpmWebpackiOSXCode

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 Framework

Skills

Backend:
JavaSpring BootTypeScriptDynamoDBJavaScriptNode.jsNestJSMicroservicesSQLExpress
Frontend:
React NativeTypeScriptReduxReactCSSHTMLJavaScriptFrontend FrameworkAngularRxJS
Tools & Libraries:
React NativeOpenAIExpoReduxSentryGitHubReactAngularNestJSRxJSNxJira
Cloud & Infrastructure:
AWSExpoGitHubDynamoDBS3CDKCloudFormationCloudWatchAppConfigElastic Beanstalk
DevOps & Build & CI/CD:
GitHubnpmMavenCDKCloudFormationNxyarnDockerKubernetesJenkinsGitLabTFS
Concepts:
Mono RepoWeb VitalsMicro FrontendsMicroservicesGraphQLJSONRESTSCRUMAgile
Misc:
FrameworkVarious TechnologiesWeb DevelopmentMobile DevelopmentBackend SystemsDatabase Systems
Testing and QA:
JestCypressLighthousePuppeteerJasmineKarmaMochaChai
and more...
Spacer
Oliver Stadie Profile Photo

Oliver Stadie

Full-Stack Web and App Developer
Berlin (Germany)+4915202825986 oliver.stadie+it@gmail.com

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.

Contact Me
+49 (1520) 28 25 986