Hire the best API Developers in Frankfurt am Main, DE

Check out API Developers in Frankfurt am Main, DE with the skills you need for your next job.
  • $40 hourly
    ⭐️Angular ⭐️React⭐️ASP.NET Core ⭐️C# ⭐️Azure ⭐️Frontend Development ⭐️Backend Development ⭐️Full Stack Development I am a full-stack developer with expertise in front-end development. I have 5+ years of professional experience in Germany. I lay the foundations of software so that it is extensible and stable in the long run. I can produce well-maintained cost-effective, and well-researched solutions. If you are looking for a full-stack expert developer proficient in developing web applications using the latest JavaScript frameworks like Angular or React, I would love to help you! 🛠 My skillset ✔Angular ✔React ✔Azure ✔JavaScript ✔.NET ✔C# ✔SQL ✔ECMAScript 6 ✔Typescript ✔HTML 5 ✔CSS ✔Flex-box ✔Bootstrap I have worked with small to large companies providing quality solutions and customer satisfaction. Some of my projects include web applications for health care systems, the aviation industry, the financial sector, and health insurance systems. I love new challenges, and I prefer exciting and challenging projects. I take time with my clients and ensure that their goals are achieved. Contact me with your idea, and I will lend you my expertise to help you get where you want to go! :)
    vsuc_fltilesrefresh_TrophyIcon API Development
    C#
    Software Development
    RESTful API
    ASP.NET Core
    API
    Angular
    .NET Framework
    React
    Git
    CSS
    SQL
    TypeScript
    JavaScript
    HTML
  • $33 hourly
    I am an experienced software professional in Application development [Java] , Data handling, Primary application support with professional fluency in English. My experience includes from developing the application to Handling P1 and P2 support. I take responsibility and strive to be a perfectionist so I will complete the tasks with standard quality and on-time. Tech Stack : Java (Spring Boot, Spring, Hibernate) MySQL, Elasticsearch, MongoDB
    vsuc_fltilesrefresh_TrophyIcon API Development
    Hibernate
    Spring MVC
    API
    RESTful API
    SQL
    SQL Programming
    RESTful Architecture
    Product Development
    Spring Boot
    Back-End Development
  • $50 hourly
    I love building products. And I am good at it. Over the past 15 years, I have dedicated myself to providing software solutions to a diverse range of businesses, from startups to Fortune 500 companies. My area of specialization encompasses developing web and mobile solutions, particularly for marketplaces and Software as a Service (SaaS) platforms. In recent years, my focus has shifted towards leveraging AI/LLM, including prompt engineering, to drive progress across multiple industries such as healthcare, social media, e-commerce, customer support, hospitality, professional services, developer tools, real estate, and finance. I aim to deliver results that not only meet but exceed the expectations of my clients, ensuring their success in an ever-evolving digital landscape. Career/Client Stats ✅ Awardee of Stanford Medical University's Grant Project ✅ Built MVP for 10+ startups that successfuly raised seed round ✅ Help generate $25M in revenue (and counting!) for MVP solutions delivered Upwork Stats ✅ Expert-Vetted (since 2022) ✅ Over $1M+ earned (across agency/freelancer) ✅ 100% Job Success ✅ Over 100+ successful jobs completed My Skills ✅ PM: Product Development, Project Management ✅ UI/UX Design: Figma, Adobe Suite ✅ Full Stack Engineering: Frontend, Backend, DevOps, SecOps ✅ Web Application Development: NextJS, ReactJS, AngularJS, VueJS, NestJS, NodeJS ✅ Mobile Application Development: iOS, Android, React Native ✅ AI: OpenAI, Stable Diffusion, LangChain, LLMs, ChatGPT, Prompt Engineering, Artificial Intelligence Recent Interest/Experiences ✅ Utilizing LLMs for automation, summarization, and response generation. ✅ Proficient in prompt engineering and fine-tuning methodologies. ✅ Exploring the intricacies of prompt engineering and fine-tuning techniques (LLMOps). ✅ Implementing machine learning algorithms for sentiment analysis in social media platforms. ✅ Integrating NLP techniques into mobile applications for voice-enabled search and commands. ✅ Optimizing web and mobile applications for SEO, incorporating AI algorithms for content optimization. ✅ Experimenting with AI-based image recognition for visual search capabilities in e-commerce platforms. ✅ Creating AI-driven recommendation engines for personalized product suggestions. ✅ Implementing AI-driven fraud detection algorithms in e-commerce and financial applications. ✅ Integrating AI-driven content generation tools for automated internal workflow for CRM/CMS. ✅ Experimenting with AI-driven personalized recommendations for content discovery Tools I am experienced in: ✅ AWS products Amazon Route 53, Amazon API Gateway, AWS Lambda, Amazon DynamoDB, AWS Aurora (MySQL), Amazon S3, Amazon SageMaker, Amazon SNS, Amazon EventBridge, Amazon CloudWatch, AWS Secrets Manager, AWS Systems Manager, Amazon CodeGuru, Amazon Comprehend, Amazon Comprehend Medical, Amazon DevOps Guru, Amazon Forecast, Amazon Fraud Detector, Amazon HealthLake, Amazon Kendra, Amazon Lex Amazon Lookout, Amazon Monitron, Amazon Omics, Amazon Personalize, Amazon Polly, Amazon Rekognition, Amazon Textract, Amazon Transcribe, Amazon Translate, AWS Panorama ✅ Microsoft Azure products Azure DNS, Azure API Management, Azure Functions, Azure Cosmos DB, Azure Database for MySQL, Azure Blob Storage, Azure Cognitive Search, Azure Bot Service, Azure Machine Learning, Azure Notification Hubs, Azure Event Grid, Azure Monitor, Azure Key Vault, Azure Automation. ✅ Web Frontend Next.js, Nuxt.js, Angular, React, Vue, Electron, Redux, MobX, tailwind-css, Sass, Less, Material UI, Ant Design, Styled Components, Gatsby, Svelte, Bit.dev. ✅ Backend Node.js, MongoDB, Redis, PostgreSQL, SQL, MySQL, GraphQL, Cassandra, RabbitMQ. ✅ Mobile Frontend React Native, iOS, Android, Expo, Fastlane, Appium.
    vsuc_fltilesrefresh_TrophyIcon API Development
    TypeScript
    React
    ChatGPT
    OpenAI API
    Product Management
    React Native
    Database Administration
    DevOps
    Web & Mobile Design Consultation
    iOS Development
    Mobile App Development
    Mobile App Design
    Web Development
    Web Design
  • $50 hourly
    Projects Hybrid NFT Marketplace (Antier Solutions) Utilized Opensea SDK for listing NFTs from Opensea Opensea API integration along with the SDK for creating unique features like trending tables. Decentralized storage for storing data of NFTs Created and tested solidity contracts for minting novel unique NFTs YSL Decentralized exchange (Antier Solutions) Integrated Uniswap V2 contracts with the front end. Created slippage tolerance calculation logic Tested contract after separating 0.25, 0.05 fee ratio Provenance Blockchain project Used typescript for creating robust frontend with testing Integrated rust contracts with the frontend ProvenanceWallet library Interacting with blockchain using wallet connect-js Decentralized Exchange (Antier Solutions) Used web3.js library for communication with the chain
    vsuc_fltilesrefresh_TrophyIcon API Development
    Solana
    Token Standard
    NFT Marketplace
    AI App Development
    Bot Development
    Web Wallet
    Blockchain Development
    API
    Web Development
    Web Application
    HTML
    Blockchain
    Blockchain Architecture
  • $100 hourly
    My Skills: * Test Driven Development * React * AWS * Angular * PHP Applications * Google Firebase * Wordpress Theme / Plugin Development * Clean and Robust Coding * Working with any API * Semantic Markup/Valid Code * Webpage Structure (Microdata) * Data Structure and Data Controlling * MVC Frameworks * REST API * SOAP API * Unit Testing * E2E Testing * Docker * Vagrant * Great Potential to pick up and eager to learn Latest web technologies to expand the skill set. Over the last 8 years, I have developed a wide range of web applications and websites from scratch for companies, small businesses and magazine, news sites . My core competency lies in complete end-end management of an application development project or to maintain or continue development of existing ones.
    vsuc_fltilesrefresh_TrophyIcon API Development
    Front-End Development
    React Native
    Firebase
    Android App Development
    TypeScript
    React
    JavaScript
    PHP
    Angular
    WordPress Plugin
    Amazon Web Services
    Vue.js
    WordPress
  • $30 hourly
    * Software Developer with 9 years of experience as full stack developer on .NET tech stack (Restful .NET WebAPI, Microservices, Docker, AWS, Kafka, Redis, MAUI, XAML,UWP, WPF, Win-UI, SDLC, Clarity, Jira, Service Now, Confluence ) * Led team with matrix structure and managing release planning & rollout * Working in agile methodology (SCRUM), involved in creating epics, user stories, estimation & sprint planning * Involved in E2E testing, automated testing, user acceptance & unified functional testing
    vsuc_fltilesrefresh_TrophyIcon API Development
    Amazon Web Services
    XAML
    C#
    Docker
  • $40 hourly
    Working with data teams and founders, analyzing and modelling data, designing and implententing cutting edge cloud-based data warehousing architectures and data-driven AI products are both my passion and occupation. --- End to End Data Product Developement. My broad multi-year domain experience in diverse business and technology roles, combined with my data science and engineering skills helps me quickly identify the value hidden in the data and define, comunicate as well as execute a clear strategy to unlock it. I hold an MSc in Engineering and Business Economics, a Corporate-MBA and multipleNanodegrees, MOOCs (MITx, Columbia, UBC, Microsoft, AWS) in Computer Science, Software Development, Data Science, Machine/Deep Learning and Artificial Intelligence. ---- Mentor and Project/Code reviewer at Udacity's Data Science, AI for Trading, AI Programming with Python & Business Analytics Nanodegrees --- Forum Mentor for the Bertelsmann Data Science Scholarship. Passionate self-learner and problem solver, I love mentoring and teaching people of all kinds of backgrounds about the power of data and programming. Excited to have a chat about your next data and AI project!
    vsuc_fltilesrefresh_TrophyIcon API Development
    TensorFlow
    Image Processing
    Natural Language Processing
    Data Scraping
    Artificial Intelligence
    Electron
    PyQt
    Data Analysis
    Data Engineering
    PyTorch
    Machine Learning
    Python
  • $30 hourly
    Hi there! I am a senior full stack developer with over 10 years of experience specialising in Javascript. Throughout my career, I have gained expertise in various Javascript frameworks such as Node.js, React, Vue.js, Nest.js, and Next.js. I have worked extensively with technologies like GraphQL, REST APIs. Additionally, I have experience with React Native for building cross-platform mobile applications, good at GCP, Docker and 3rd parties API integration (like Paypal, Stripe, Twilio, Spotify, Slack, Telegram etc.) I have a strong passion for building scalable and reliable web and mobile applications, and I am always eager to learn new technologies and techniques to stay up to date with the latest industry trends. I am a team player and enjoy collaborating with cross-functional teams to deliver high-quality products. I am confident that my skills and experience make me a valuable asset to any project, and I am excited to bring my expertise to your team.
    vsuc_fltilesrefresh_TrophyIcon API Development
    Google Maps API
    NestJS Development
    Twitter/X Bootstrap
    RESTful API
    Google Cloud Platform
    NestJS
    JavaScript
    Node.js
    React
    Next.js
    webpack
    Twilio API
    Web Development
    GraphQL
  • $30 hourly
    Hi, I am a Full stack Developer with with over 6 years of hands-on experience , specializing in a diverse range of technologies including React, JavaScript, NodeJS, and Generative AI. My expertise spans both web and mobile development, having successfully delivered top-notch solutions across various industries such as Healthcare, Logistics, E-commerce, EdTech, Fintech, and Real Estate using AI. ❇️ My Expertise: - Web Development: I have a proven track record of creating dynamic, responsive, and user-friendly web apps. My skill set encompasses a wide array of technologies, including HTML, CSS, JavaScript, and a range of modern front-end and back-end frameworks, ensuring an unparalleled web experience for your audience. - Mobile App Development: I excel in building cross-platform and native mobile applications that drive engagement and user satisfaction. My proficiency spans iOS and Android, utilizing Flutter, React Native, and native programming languages to deliver seamless mobile experiences. - Industry Diversification: I've successfully contributed to projects in the Healthcare, Logistics, E-commerce, Edtech, Fintech, and Real Estate sectors. This extensive exposure equips me with a unique understanding of industry-specific challenges and opportunities. - Custom Solutions: I am committed to delivering tailor-made solutions that align with your business objectives. Whether it's developing a custom CMS, integrating payment gateways, or creating scalable e-commerce platforms, I can bring your vision to life. - Agile Methodology: I'm well-versed in agile project management, ensuring a flexible and collaborative approach to development that keeps you informed and engaged throughout the project lifecycle. ❇️ Services I Offer: - Front-end Development - Back-end Development - Mobile App Development - API Development & Integration - Database Design - E-commerce Solutions - Custom Web Applications - Real-time Systems Whether you're a startup, a large enterprise, or an entrepreneur, I'm here to collaborate and bring your ideas to life. Let's discuss your project, and I'll provide a tailored solution that exceeds your expectations. Let's embark on a journey to create exceptional web and mobile solutions for your business.
    vsuc_fltilesrefresh_TrophyIcon API Development
    Generative AI
    MERN Stack
    Web Development Consultation
    Web Development
    React Native
    NodeJS Framework
    Dart
    Flutter
    RESTful API
    Mobile App Development
    React
    Node.js
    JavaScript
    API
  • $30 hourly
    I specialize in full-stack web development, with extensive experience in Java (Spring Boot) and TypeScript (Angular). My expertise lies in implementing robust web applications, handling both backend and frontend development tasks seamlessly. I excel in integrating authentication and authorization functionalities using technologies like Keycloak. In addition to my web development skills, I am proficient in creating and utilizing RESTful APIs, employing development tools such as Git, Eclipse, Visual Studio Code, and Postman to streamline the development process. My academic background includes a study on the application of subdivision and displacement of Lagrange elements in 3D printing, where I utilized tools like MeshLab and programming languages like C++ within Visual Studio. Furthermore, I have hands-on experience in game development using Java and frameworks like Slick2D and eea. I have developed games from scratch, focusing on aspects like environment design, character development, and user interaction. Moreover, I have ventured into mobile game development, particularly on the Android platform, where I created an engaging game centered around exploring city landmarks within a set timeframe. In addition to my development skills, I am adept at data visualization using D3.js and data analysis with Python. I have successfully implemented visually appealing data visualizations in frontend applications and conducted in-depth data analysis tasks in backend systems. Overall, I bring a diverse skill set encompassing web development, game development, and data analysis to any project, along with a passion for innovation and problem-solving.
    vsuc_fltilesrefresh_TrophyIcon API Development
    TensorFlow
    Python
    Scrum
    JavaScript
    Back-End Development
    Web API
    Angular
    Spring Boot
    Java
    API
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