Hire the best TypeScript Developers in Koeln, DE
Check out TypeScript Developers in Koeln, DE with the skills you need for your next job.
- $90 hourly
- 5.0/5
- (20 jobs)
🇩🇪 Nuxt Developer ✔️ Expert in payment integration for Nuxt/Vue apps ✔️ Skilled with Tailwind CSS ✔️ Secure and scalable payment solutions ✔️ Quality-driven, client-focused ✔️ Let’s build success together! SaaS Payment Integration Headless Shop Custom Cart Custom payment integration for Stripe, Paddle, PayPal, and Klarna. Payment integration is complex: multiple methods, security, errors, and user experience. I solve these with modular architectures and strong security practices. Thorough testing ensures smooth payment flows. My user-first approach makes checkout easy and trustworthy. ⬛ Quality over Quantity 📞 Available for calls the same day 𝐌𝐘 𝐒𝐊𝐈𝐋𝐋𝐒: ▪️ PCI Compliant development ▪️ Vue and NuxtJs expertise ▪️ Tailwind CSS for modern, responsive designs ▪️ NestJs Backend ▪️ Databases: MongoDB, Postgres ▪️ API integration and backend connectivity ▪️ Efficient project management 𝐏𝐑𝐎𝐕𝐈𝐃𝐄𝐑𝐒 𝐈 𝐖𝐎𝐑𝐊 𝐖𝐈𝐓𝐇 𝐄𝐕𝐄𝐑𝐘 𝐃𝐀𝐘: ▪️ Google Cloud ▪️ Cloudflare ▪️ Supabase ▪️ Netlify 𝐈 𝐎𝐅𝐅𝐄𝐑: ▪️ Innovative solutions ▪️ German reliability ▪️ Commitment to building something great together 𝐓𝐎𝐎𝐋𝐒 𝐈 𝐔𝐒𝐄: ▪️ NeoVim for efficient code editing ▪️ Git for version control and collaboration ▪️ Docker for containerization and consistent environments CONTACT HOURS: Remote Only - 06:00 - 12:00 German Time
TypeScript
HTML5ExpressJSAgile Software DevelopmentRESTful APIAPI IntegrationFront-End DevelopmentHTMLWeb DevelopmentNode.jsPostgreSQLJavaScriptTailwind CSSVue.jsNuxt.js - $80 hourly
- 5.0/5
- (7 jobs)
Hi there, my name is Ali, I’m a German passionate and enthusiastic Full Stack Engineer with focus on Security and DevOps. I have more than 8 years of solid work experience developing custom solutions for small, medium and large-sized businesses. I've been working in several fields in the past years including e-commerce, insurance software, custom CRMs, big data and real-time applications. I do speak 6 languages fluently and it surely helps me working in all team sizes and constellations. I do agile software development with SCRUM. Below is a short list of technologies I work with - Vue, Nuxt, Angular, React (Web, Native) - Tailwindcss, CSS Grid, Flexbox - Webpack, Rollup, Gulp - Spring Boot, NodeJS, NestJS, Faust - JUnit, Jest, Cypress, Puppeteer - MySQL,PostgreSQL/PostGIS, MariaDB, Firestore - REST, GraphQL, SOAP - Apache Kafka, Spark, and Faust - Serverless architectures (Microservices/Nanoservices) - Keycloak, Auth0, Firebase, AWS Cognito, Azure AD - Docker, Docker-Swarm, Kubernetes, Kubeadm - Terraform, Ansible - JFrog, JFrog Xray, SonarCloud, Syft, Grype - AWS, GCP, Azure, Hetzner - Gitlab, BitBucket, Github, Jira - Lerna, Turborepo, Yarn Workspaces
TypeScript
JestCypressTestingJavaScriptVue.jsDevOpsReactAngularNode.jsApache KafkaKubernetesGolangMicroservice - $35 hourly
- 5.0/5
- (3 jobs)
Hello! I'm a dedicated and self-motivated frontend developer with nearly 7 years of experience in creating stunning and unique websites and progressive web applications. My passion for web development drives me to consistently deliver high-quality, user-friendly digital solutions. Key Strengths: Efficient Problem Solver: Expert at analyzing and fixing bugs swiftly to ensure seamless user experiences. Team Player: Proven track record of providing assistance to team members, fostering a collaborative and productive work environment. Versatile Skill Set: Proficient in HTML, CSS, JavaScript, and modern frameworks like React and Angular. Responsive Design: Skilled in building responsive, mobile-first websites that look great on any device. Cross-Browser Compatibility: In-depth understanding of cross-browser issues and solutions. Version Control: Experienced with Git for efficient version control and collaboration. What I Offer: High-Quality Development: Committed to writing clean, maintainable code that adheres to best practices and industry standards. Attention to Detail: Focused on creating visually appealing and intuitive user interfaces. Continuous Improvement: Always eager to learn new technologies and improve existing skills to stay ahead in the ever-evolving tech landscape. Whether you need a single-page application or a complex web solution, I am well-equipped to contribute to innovative and successful projects. Let's work together to bring your vision to life!
TypeScript
StrapiSoftware ArchitectureWeb Design PluginReduxHTTPSNode.jsNext.jsReact - $100 hourly
- 0.0/5
- (0 jobs)
Software Developer, Digital Product Designer, Agile Project Manager and Lean Entrepreneur. Co-Founder MX Tickets and seal.wtf, several years of collaboration with Chow Grabber, The Call Center School and injixo.
TypeScript
HTMLUser Experience DesignDesign ConceptSoftware Architecture & DesignContinuous IntegrationLean StartupAgile Software DevelopmentwebpackUser Interface DesignAgile Project ManagementExpo.ioReactJavaScriptReact Native - $150 hourly
- 0.0/5
- (0 jobs)
I am a seasoned Fullstack developer and Head of IT at a small software startup. I leverage my expertise in SvelteKit, Node.js, Go, Elixir/Phoenix, Linux servers, automation, and system architecture to create high-performing and scalable applications. My experience spans from initial architecture design to ongoing maintenance and optimization.
TypeScript
Web Application DevelopmentSoftware ArchitectureERP SoftwareJavaScriptElixirPhoenix Web FrameworkGolangSvelteNode.jsLinuxProduct DevelopmentWeb DevelopmentWeb ApplicationArtificial Intelligence - $90 hourly
- 0.0/5
- (0 jobs)
I'm a freelance developer focused on helping small and medium-sized businesses build fast, reliable web applications. I specialize in creating solutions that include user authentication, database integration, and AI tools, tailored to meet each business’s unique needs. Whether you need a simple platform or a more complex application, I aim to deliver clean, efficient code with a strong emphasis on usability and scalability. Let’s work together to bring your ideas to life quickly and effectively. Skills: Typescript, Next.js , prisma , Postgres, mongoDB OpenAI API & more
TypeScript
AI App DevelopmentPostgreSQLMongoDBVercelOpenAI APIHTMLCSSJavaScriptNext.js - $20 hourly
- 5.0/5
- (4 jobs)
Hi, I’m Serhii Iver, a 35-year-old Front-End Developer with over 5 years of experience building fast, modern web applications using React.js, Next.js, and TypeScript. I have a strong background in state management with Redux Toolkit and React Query (TanStack Query), and I enjoy crafting clean, responsive UIs with Tailwind CSS, Material UI, and Ant Design.I'm also experienced with writing tests using Jest and Enzyme, and working with CI/CD pipelines (GitHub Actions, Jenkins). While my main focus is front-end, I’m confident with back-end technologies like Node.js, PHP, MySQL, and MongoDB as well as server environments (Ubuntu, Nginx, PM2, etc).
TypeScript
NodeJS FrameworkMVC FrameworkObject-Oriented ProgrammingReact NativejQueryTemplatesMySQLJavaScriptHTML5CSS 3Node.jsReactNext.js - $40 hourly
- 4.9/5
- (4 jobs)
🚀 Senior Full Stack Engineer | 🤖 AI Enthusiast | 7+ Years of Experience Frontend: HTML5 | CSS3 | SCSS | Styled Components | Tailwind | React JS | Redux | Svelte | Angular | TypeScript | JavaScript Backend: Node.js | Python | Django | FastAPI | GO | PHP | Laravel Cloud & DevOps: AWS Serverless (Lambda | API GW | DynamoDB) | Docker | Kubernetes | Terraform Database: MySQL | PostgreSQL | MongoDB | DynamoDB APIs: REST | GraphQL | Hasura | gRPC Testing: Jest | Mocha | Cypress | Playwright | TDD | BDD Project Management: Agile | SCRUM | JIRA | Confluence === Overview === 👋 Hi there! I'm a passionate Senior Full Stack Engineer with over 7 years of experience in building cutting-edge digital solutions. I thrive on creating impactful products that users ❤️ and ensuring top-notch quality throughout the development process. 💼 In my current position, I collaborate with Product Managers, Designers, and fellow Engineers to deliver end-to-end features that drive innovation. My role involves: 🔄 Developing MVPs and MLPs to bring valuable functionality to life. 📄 Writing RFCs to communicate proposed solutions. 🛠️ Crafting POCs to validate new ideas and features. ✅ Ensuring high standards of code quality through rigorous unit and end-to-end testing. 🌟 My tech stack includes JavaScript, TypeScript, React JS, AWS Serverless, GraphQL, and Docker, among others. I've worked across various industries, from energy solutions 🌍 at Epilot to media 🎥 at Vidy, and even government services 🏛️ at IBM. My experience spans full-stack development, refactoring complex codebases, and engineering responsive user interfaces. 🚀 Beyond my professional work, I'm an AI & Machine Learning enthusiast. I’m constantly learning and experimenting with the latest in AI, taking on personal projects to sharpen my skills. Additionally, I love sharing my journey and insights through blogging 📝 on Medium, where I break down complex topics for a wider audience. 🤝 If you're looking for a skilled engineer who combines technical expertise with a passion for innovation, let’s connect! I’m excited to bring your vision to life. === 📅 Availability === Open to new opportunities 🚀
TypeScript
MySQLServerless StackSvelteAngularMongoDBOpenAPIDevOpsNext.jsAmazon Web ServicesDockerNode.jsPythonVue.jsReact - $40 hourly
- 0.0/5
- (0 jobs)
As a full-stack web developer, I have successfully completed my first freelance projects and self-initiated concepts. Now, I am seeking exciting challenges to expand my portfolio and deliver innovative solutions. Over the past two years, I have systematically developed strong programming skills and completed prestigious online courses, including certifications from Harvard University. My background as a business journalist adds unique value to IT projects: I excel in research, quickly immerse myself in new topics, and always keep the bigger picture in mind—beyond just the lines of code in my VS Code editor.
TypeScript
Web DevelopmentContent CreationJavaScriptSupabaseLeafletReactStrapiContent Management SystemNext.jsWeb DesignTailwind CSSHTML5CSSPython - $30 hourly
- 0.0/5
- (0 jobs)
✅ Binance Smart Chain - Building DeFi & Dex by forking Pancakeswap, Pantherswap, Goosedefi and so on - Upgrading Pancakeswap Dex from V1 to V2 - Forking and costomizing Safemoon token - ICO preslae landing page and smart contract for selling token - Trading Bot (Frontrunning, Sniping) - Developing smart contracts using a Solidity programming language. - Developing RPC using client libraries such as Web3. - Static analysis of smart contracts for gas consumption and optimization using Remix IDE. - Securing smart contracts using libraries like OpenZeppelin. - Developing Ethereum dApps using Truffle framework. - Integration with crypto wallets such as Metamask. ✅ Ethereum - Building DeFi by forking Sushiswap - Building Dex by forking Uniswap - ICO preslae landing page and smart contract for selling token - Developing smart contracts using a Solidity programming language. - Developing RPC using client libraries such as Web3. - Static analysis of smart contracts for gas consumption and optimization using Remix IDE. - Securing smart contracts using libraries like OpenZeppelin. - Developing Ethereum dApps using Truffle framework. - Integration with crypto wallets such as Metamask. - Deploying smart contracts on test networks such as ropsten/rinkeby as well as Ethereum mainnet. ✅ Polygon(MATIC) - Building DeFi & Dex base on Polygon network - ICO preslae landing page and smart contract for selling token - Developing smart contracts using a Solidity programming language. - Integration with crypto wallets such as Metamask. ✅ Day to day used tech by me ✅ Binance Smart Chain Ethereum Polygon Stellar Ripple HyperLedger Aergo Vechain Qtum OmiseGo GoChain Blockchain A senior Blockchain Developer/enthusiast providing Blockchain solutions to Startups and Enterprises. I review business models and help them adjust their businesses within the growing blockchain ecosystem. Please message and don't hesitate to discuss your project with me!
TypeScript
Vue.jsLaravelCakePHPNext.jsUI/UX PrototypingNuxt.jsMagentoWordPressReactData MiningBlockchainJavaScript - $10 hourly
- 0.0/5
- (0 jobs)
I'm a developer experienced in building websites for small and medium- sized businesses. -I know HTML and CSS, JavaScript and C. -I work on frontend projects.
TypeScript
ExpressJSNode.jsBootstrapTailwind CSSReact NativeCSSHTMLJavaScript Want to browse more freelancers?
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