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Zain here! I'm a seasoned Full Stack developer with a keen eye for detail and great coding skills. With the use of the most effective Front end tools and approaches, Front End Expertise: ✅ HTML5, CSS3, JavaScript, TypeScript ✅ React, Redux Backend Expertise: ✅ Java, Servlets, JDBC, Hibernate, ✅ Spring Boot, Spring Cloud, Spring JPA ✅ Oracle, MySql, Informix, PostgreSQL, Firebase ✅ GCP (BigQuery, CloudFunctions etc) ✅ SAP commerce cloud(Hybris) certified ✅ Salesforce Datorama(Marketing cloud intelligence) 𝙈𝙮 𝘾𝙤𝙧𝙚 𝙅𝙖𝙫𝙖/𝙎𝙥𝙧𝙞𝙣𝙜 𝘽𝙤𝙤𝙩 𝙀𝙭𝙥𝙚𝙧𝙩𝙞𝙨𝙚: 💥 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬: Spring boot, Hibernate, Web Services, Spring MVC, Spring Rest, Spring Gateway, SAP Commerce Cloud etc 💥 𝐃𝐞𝐯𝐎𝐩𝐬: Azure DevOps, CI-CD 💥 𝐃𝐚𝐭𝐚𝐁𝐚𝐬𝐞: SQL Server 2008, MySQL, Oracle 💥 𝐎𝐭𝐡𝐞𝐫 𝐓𝐨𝐨𝐥𝐬 & 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬: SVN, GIT, PostMan 💥 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 𝐌𝐨𝐝𝐮𝐥𝐞𝐬: Spring Security 💥 𝐓𝐞𝐬𝐭𝐢𝐧𝐠: JUnit, Mockito 💥 Maps Integration: Google Map 💥 Third-party Integrations: SendGrid API, Salesforce Marketing Cloud API. 💥 Remarkable working experience with Fintechs 💥 Worked with one of the Europe's biggest clients on Salesforce Datorama. 📞 Let's get connected via a call/chat and discuss your project. Have a project? 𝗧𝗲𝗹𝗹 𝗺𝗲 𝗮𝗯𝗼𝘂𝘁 𝗶𝘁 Upwork Invites are working properly, so I'm eager to get them from you! Cheers, Zain

✅ UpWork Top Rated Developer ✅ 100% JSS Hi! I am Vladislav, and I am working as a front-end web developer for four years. I mostly specialize in JavaScript, TypeScript, React.js, Node.js, Nest, Firebase. I have successfully completed more than seven long-term projects and many one-time projects. I am an enthusiastic worker and goal-oriented person with good communication skills. If you are looking for a creative and optimistic person who loves coding and solving different problems, I am ready to work with you! Have any questions? Want to discuss your project? Feel free to contact me 🗒️ and have a nice day! 😉 1. JS: ✔ ReactJS ✔ Redux (RTK) ✔ NodeJS ✔ TypeScript ✔ JavaScript ✔ Express ✔ Nest ✔ Firebase ✔ PostgreSQL 2. SEO Optimisation 3. Site speed optimization 4. API development 5. Managing DNS 6. Hosting and cPanel 7. Website Migration 8. AWS 9. Nginx

10+ years experience in mobile and web full-stack development, I am the Swiss Army Knife of software development. I have expert knowledge in: - React / React-Native / Expo - NextJS / NodeJS - JavaScript / TypeScript - Google Firebase / Google Cloud Platform - MongoDB / PostgreSQL I regularly use the above stack in my day-to-day work, but I am also comfortable adapting to different tools that may be more suitable for a specific task. I am passionate about translating beautiful designs into efficient code to create exceptional user experiences. I am proficient in working across the entire web and mobile stack, focusing on writing testable code that follows the "Don't Repeat Yourself" principle. I also prioritize setting up automated pipelines for repetitive tasks. My approach is pragmatic, and I prefer integrating proven third-party software rather than reinventing solutions. I aim to release quickly and frequently, iterating until the customer is satisfied. I have experience working in diverse teams across various time zones, ranging from startups to large enterprises. I am solution-oriented and known to be the man for the hard and rough jobs. I work efficiently and take pride in delivering high-quality work on time.

Experienced Full-Stack Web Developer | Open to Collaboration As a freelance developer since 2018, I bring expertise across the full software development lifecycle, from initial design to production deployment. Core Competencies: Full-Stack Frameworks Proficient in scalable frameworks for modern web development: Frontend-First Frameworks: - Next.js - NestJS - Nuxt.js - SvelteKit - SolidStart Backend-First Frameworks: - Laravel - Symfony Back-End Development Skilled in building robust and efficient server-side solutions using Python, Go, PHP, and JavaScript. Specialized frameworks include: - Flask - FastAPI - Express.js, Node.js Front-End Development Adaptable to the dynamic JavaScript landscape and experienced with: React, Solid, Svelte, Vue HTMX, jQuery Databases: Deep experience with relational and NoSQL databases: Relational: PostgreSQL, MySQL, MariaDB, SQLite NoSQL: MongoDB, Firestore, DynamoDB While I favor writing raw SQL queries with database drivers, I collaborate effectively in team settings using ORMs like: Drizzle, SQLAlchemy, Prisma, Django ORM Backend-as-a-Service (BaaS) Proficient in implementing BaaS solutions for streamlined deployment: Supabase, PocketBase, Vercel (DB), AWS Amplify, Firebase Development Philosophy Problem Solving: While testing is a personal growth area, I embrace Test-Driven Development (TDD) to ensure high-quality, bug-free code. Adaptability: Continuously upskill in emerging technologies and frameworks. Collaboration Guidelines Upwork Policy Adherence: Communication and payment must remain on Upwork until a contract is established. External communication tools or profile sharing outside Upwork’s platform are not permitted. Platform Exclusivity: I do not work outside the Upwork platform to ensure security and compliance. Let me know if there’s a project we can work on together!

Hi, I’m Christine 👋 I specialize in building AI-powered platforms that combine mobile apps, backend APIs, and marketing websites into one seamless experience. My background bridges technical development with project management, so I don’t just write code – I take projects from idea to launch, ensuring every detail is delivered. ✨ Recent project highlights: ScenePartner App – A full-stack AI rehearsal platform for actors. Built in Flutter (iOS & Android) with Firebase, FastAPI backend, GPT-4/Claude script parsing, ElevenLabs voice generation, and RevenueCat subscription system. SelfTapePartner Website – A responsive marketing site built in Next.js/React with Tailwind, Framer Motion animations, Firebase waitlist integration, and Netlify/Vercel deployment. 💡 What makes me different: I can handle end-to-end development: mobile apps, backend, cloud, and web. Strong AI & automation expertise (GPT-4, Claude, ElevenLabs, Firebase Functions). Experience with subscription apps, multi-language support, and in-app purchases. Clear, proactive communication and structured project management. If you’re looking for someone who can lead, build, and deliver modern digital products with AI and subscription models at the core – let’s talk.

Hello, nice to meet you! My name is Jan, and I am a professional, skilled, and detail-oriented backend and fullstack developer. I am a very pragmatic, talented, and quick-to-learn developer and partner. I am quick to understand the needs of your business and your technical requirements, and my pride in my work ensures that I always deliver a fantastic product that meets or surpasses your expectations, and that I do it on time. I have both formal experience/education: - MSc in Software Design from the IT University of Copenhagen And practical experience: - Lead backend developer and fullstack developer at Flimmer, a startup in Copenhagen developing a video streaming app for children. (Expo/RN, Convex, 3rd party APIs & integrations) - Web projects: e-commerce, browser game, etc. - Expert Convex developer (and contributor) 🟢 What can I do for you? I can help you build, improve, or launch your mobile or web app wherever it is in process - from early design and architecture through development to deployment and hosting. I work fullstack, backend, and mobile, and can integrate with any third party services and APIs that you are interested in or would suit your project. - MVP development: Having worked in a startup, I am particularly skilled at moving fast to prototype and build MVPs - Changes or amendments to existing systems: I can work alone or with your team of developers to build new features, fix bugs, and take your product further - Performance optimizations and troubleshooting: Through my formal academic background and my experience as a backend engineer I have built strong skills in optimization and performance troubleshooting 🟢 Tools and frameworks Frontend Development - Next.js, React, Expo/React Native - Responsive design that works on all devices Backend & Database Systems - SQL Databases (PostgreSQL etc.) - NoSQL (Convex, MongoDB, Firebase, etc.) - Node.js - High-performance server applications Programming Languages - TypeScript - Frontend and backend, multiple paradigms - Go (Golang) - Backend development - Java Mobile Development - Cross-platform mobile apps with Expo - App Store/Google Play Store deployment and management - Continuous development and integration DevOps & Deployment - Docker containerization - Automated deployment pipelines - Continuous integration and maintenance - Production monitoring and optimization 🟢 Working with me When working with you as my client, I put a great effort into communicating clearly with you to understand your requirements, desires, and wishes. I never enter into an agreement with someone if I don't believe that I can provide a quality solution to their problem. In me, you will find an extremely conscientious and dedicated person who values good communication very highly. At the same time, I am also a very very relaxed, funny, and easy-going person who never gets frustrated or angry :) Thank you very much for reading, I look forward to hearing from you!