Stefan Trost，德国巴登-符腾堡州斯图加特的开发者
Stefan is available for hire
Hire Stefan

Stefan Trost

Verified Expert  in Engineering

Front-end Developer

Location
Stuttgart, Baden-Württemberg, Germany
Toptal Member Since
February 16, 2022

Stefan是一名拥有5年以上商业经验的开发者，专注于前端和移动开发, conceptual design, planning, and prototyping. 他的技术专长包括React、JavaScript、TypeScript和Node.js. Stefan拥有商业信息学学士学位，拥有丰富的行业经验. A Certified Scrum Master, 他着迷于技术及其可能性，并且非常积极地利用它来交付客户和业务价值.

Front-endSoftware DevelopmentFull-stackVisual Studio Code (VS Code)GitFirebaseJavaScriptGoogle Cloud Platform (GCP)HTML5Google CloudCSSREST APIsReactReduxTypeScriptHasura

Portfolio

Self-employed
React Native, React, TypeScript, Ionic, Angular, WordPress, Balsamiq...
BERP LLC
HubSpot, Google Cloud, Google BigQuery, Google Cloud Functions, api, SQL...
Caster
OpenAPI, Amazon Web Services (AWS)， Firebase, TypeScript, React Native, Hasura...

Experience

React Native - 5 yearsFirebase - 5 yearsJavaScript - 5 yearsGit - 5 yearsGoogle Cloud - 4 yearsReact - 3 yearsRedux - 3 yearsTypeScript - 2 years

Availability

Full-time

Preferred Environment

MacOS, Visual Studio Code (VS Code), Git, Firebase, Google Cloud, JavaScript, TypeScript, React, React Native, Docker

The most amazing...

...project I've been involved in is planning, designing, 以及为初创公司从头开始实施网络和移动应用程序.

Work Experience

Web Designer and Developer

2012 - PRESENT
Self-employed
  • 计划并开发了一个应用程序，客户可以在其中订阅众筹巴士旅行. 我用JavaScript、Ionic Framework、Angular和Node构建了这个混合移动应用程序.后端使用Paypal SDK和Stripe API处理支付.
  • Designed and developed web pages with Adobe XD and WordPress.
  • 设置web托管和管理web服务器和MySQL数据库.
Technologies: React Native, React, TypeScript, Ionic, Angular, WordPress, Balsamiq, Adobe Experience Design (XD), Prototyping, Front-end, Mobile App Development, Software Development, HTML, CSS, GitHub, Visual Studio Code (VS Code), Amazon Web Services (AWS), iOS, HubSpot CRM, Camera API, Google Cloud Functions, Back-end, Full-stack, HTML5, TypeScript 3, Python, Next.js

HubSpot and Google Cloud Data Integration Specialist

2024 - 2024
BERP LLC
  • 开发并实现了一个Google Cloud Function，用于自动化数据查询和处理, including setting up Service Accounts for secure connections.
  • 创建并配置了一个私有的HubSpot应用程序，并进行了身份验证，以启用API访问并安全地处理数据.
  • Integrated and queried 15,000 entries from HubSpot based on specific parameters, 包括在Google BigQuery中执行复杂的SQL查询.
  • 开发了一种处理和分析数据的算法，包括匹配、排序和过滤. 确保在CSV文件中高效存储，以供客户审阅，并最终将处理后的数据写回HubSpot.
  • Deployment of the cloud function to the cloud, including comprehensive testing, debugging, and environment setup.
Technologies: HubSpot, Google Cloud, Google BigQuery, Google Cloud Functions, api, SQL, REST APIs, REST, Cloud, Authorization, Deployment

Technical Team Lead

2023 - 2023
Caster
  • Led and managed the development team, 支持初级开发人员并培养协作工作环境.
  • 设计并实现了集成OpenAPI的AI聊天机器人的架构和功能.
  • 从零开始开发了一个用于事件管理和组织的React Native应用程序，并成功地在各种应用商店发布.
  • 实施CI/CD管道和端到端测试，以确保代码质量并确保持续的软件交付.
  • Interviewed, evaluated, onboarded, and trained new developers, 确保他们迅速融入到自己的角色中，并适应组织.
  • 进行定期的代码审查，以确保软件质量和遵守最佳实践.
Technologies: OpenAPI, Amazon Web Services (AWS)， Firebase, TypeScript, React Native, Hasura, Bitrise, CI/CD Pipelines, Architecture, Detox, E2E Testing, Scrum, Technical Recruiting, LangChain, Google Cloud Functions, Back-end, Node.js，谷歌云平台(GCP)，全栈，最小可行产品(MVP)， HTML5, TypeScript 3

Senior Full-stack Developer

2022 - 2022
Caster
  • 在React Native中开发了一个移动应用程序来创建、邀请、管理和加入某些事件.
  • 重构现有应用程序的部分，以降低代码复杂性并提高性能.
  • 为Firebase authentication和Hasura实现了一个JWT认证流.
  • 引入了一个使用Storybook、RNUI和Zeplin的UI样式系统.
Technologies: React Native, GraphQL, TypeScript, Hasura, JavaScript, Storybook, PostgreSQL, AWS Lambda, Firebase, Auth0, Zeplin, REST APIs, ECMAScript (ES6), OpenAI GPT-3 API, OpenAI GPT-4 API, Android, iOS, Camera API, Google Cloud Functions, Back-end, Node.js，谷歌云平台(GCP)，全栈，最小可行产品(MVP)， HTML5, TypeScript 3, Python

Front-end Developer

2022 - 2022
Aluma Technologies Ltd.
  • 从头开始开发一个web应用程序来管理和处理智能文档工作流.
  • 集成PDFTron预览，注释，编辑和导航PDF文档.
  • Implemented a component library with Tailwind CSS.
  • 使用Jest处理自动化单元和端到端测试的实现, Testing Library, and Playwright.
Technologies: Svelte, JavaScript, TypeScript, Playwright, Jest, Storybook, PDFTron, PDF, Tailwind CSS, Minimum Viable Product (MVP), HTML5, TypeScript 3

Software Developer

2020 - 2021
inovex
  • 为电子健康领域的混合React Native移动应用程序提供开发和测试支持. 重构旧的应用程序，并引导从JavaScript到TypeScript的过渡.
  • 为这个电子健康产品开发和测试React web应用程序.
  • 创建概念设计并实现CI/CD管道.
Technologies: TypeScript, JavaScript, React, React Native, Docker, Jest, Git, Codeship, Bitbucket, REST, Xcode, Front-end, Mobile App Development, Software Development, HTML, CSS, Figma, GitHub, Scrum, Visual Studio Code (VS Code), REST APIs, ECMAScript (ES6), Android, iOS, Camera API, Google Cloud Functions, Full-stack, HTML5, TypeScript 3

Front-end Developer

2018 - 2020
弗劳恩霍夫制造工程与自动化研究所
  • 继续使用Kotlin开发和支持原生Android应用程序，以支持知识管理.
  • Conceived, planned, 并开发了一个web React应用程序来支持生产过程和知识管理.
  • 开发了一个React web应用程序，以实时的方式可视化实时数据.
Technologies: React, Redux, OAuth, Git, Docker, Jenkins, REST, Android SDK, Kotlin, Front-end, Mobile App Development, HTML, CSS, React Native, Visual Studio Code (VS Code), iOS, Camera API, HTML5, TypeScript 3

Mymories | An App for Sharing Images Without Losing Data

http://mymories.de
一种服务，可以在一个活动中轻松地与多人共享图像，而不会丢失数据, such as a party, wedding, or holiday. Users can also display live images on a screen. I conceived, designed, and developed the idea from scratch, including the React Native application, the React web front end, and the back end hosted via google cloud functions.

Shuttle Up | An App for Crowdfunding Party Buses

http://shuttle-up.de
A hybrid app to create and organize crowdfunded bus travels. 我在前端使用Angular的Ionic框架开发了这个应用程序, Firebase on the back end, 以及通过Paypal SDK和Stripe进行支付整合，以阻止和接收付款.

Personal Portfolio Page

一个具有响应式设计的投资组合网站，为用户体验和SEO优化. Build with React and Next.用于页面的服务器端渲染和强大的SEO和响应式的TailwindCSS设计, including light and dark modes.

Languages

JavaScript, TypeScript, CSS, HTML, HTML5, TypeScript 3, SQL, ECMAScript (ES6), Java, C++, Kotlin, Bash, GraphQL, Python

Frameworks

React Native, Redux, Jest, Tailwind CSS, Next.js, Android SDK, Angular, Ionic, Svelte, Detox

Libraries/APIs

React, REST APIs, Node.. js, Stripe API, Stripe, Camera API, PayPal API，剧作家，OpenAPI

Tools

Git, Xcode, GitHub, Codeship, Bitbucket, Jenkins, Figma, Adobe Experience Design (XD), Cron, Balsamiq, PDFTron, Auth0, Zeplin

Paradigms

REST, Mobile Development, Scrum, UX Design, E2E Testing

Platforms

Visual Studio Code (VS Code), Firebase, Google Cloud Platform (GCP), Mobile, MacOS, Docker, WordPress, Amazon Web Services (AWS), iOS, HubSpot, Kubernetes, AWS Lambda, Vercel, Bitrise, Android

Storage

谷歌云，数据库，关系数据库，Backblaze B2, Hasura, PostgreSQL

Other

Front-end, Mobile App Development, Software Development, API Integration, Full-stack, Minimum Viable Product (MVP), OAuth, GitHub Actions, Storybook, MERN Stack, APIs, Google Cloud Functions, Back-end, Google BigQuery, Cloud, Networking, Machine Learning, Data Analysis, Prototyping, Certified ScrumMaster (CSM), PDF, OpenAI GPT-3 API, OpenAI GPT-4 API, CI/CD Pipelines, Architecture, Technical Recruiting, LangChain, HubSpot CRM, Authorization, Deployment

2015 - 2018

Bachelor's Degree in Business Informatics

Furtwangen University - Furtwangen, Germany

JANUARY 2022 - PRESENT

Kubernetes for App Developers (LFD459)

The Linux Foundation

MARCH 2019 - PRESENT

Certified Scrum Master

Scrum Alliance

Collaboration That Works

How to Work with Toptal

在数小时内，而不是数周或数月，我们的网络将为您直接匹配全球行业专家.

1

Share your needs

在与Toptal领域专家的电话中讨论您的需求并细化您的范围.
2

Choose your talent

在24小时内获得专业匹配人才的简短列表，以进行审查，面试和选择.
3

Start your risk-free talent trial

与你选择的人才一起工作，试用最多两周. Pay only if you decide to hire them.

Top talent is in high demand.

Start hiring