Hire the Best JavaScript Engineers
Ukrainka, Ukraine
Senior Front-End Developer | Expert in Angular & React Native & Vue | TypeScript | SCSS | Node.js 🔹 8 Years of Professional Experience 🥇Top Rated (100% Job Success Rate) I’m an experienced Front-End Developer with a strong foundation in modern web technologies and over 7 years of experience in building scalable, high-performance web applications. My focus is on delivering visually appealing and user-friendly solutions that exceed client expectations. 📌 𝐌𝐲 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: ✔️ 7+ years of professional experience in web and mobile app development. ✔️ 5+ years of uninterrupted experience with Angular 2+ and related technologies (TypeScript, RxJS, NgRx and different UI libraries). ✔️ 2+ years of development experience with React/Redux/React Native, Nuxt.js, Vue.js and Wordpress ✔️ good knowlege of AJAX, JSON, REST API, GRAPH QL, OOP, SOLID, DRY, KISS, YAGNI ✔️ good understanding Docker, CI-CD integration ✔️ good knowlege Node.js, Express, Mongo DB, PostgreSQL 📌 𝐇𝐨𝐰 𝐈 𝐂𝐚𝐧 𝐇𝐞𝐥𝐩 𝐘𝐨𝐮: ✅ Implementing sleek, pixel-perfect interfaces based on detailed UX/UI designs ✅ Collaborating with designers and developers to bring your vision to life ✅ Ensuring scalable, optimized, and maintainable code for long-term success ✅ Creating reusable components and optimizing applications for maximum performance Strong communication skills, work well both independently and within the team. Quickly learns and masters new concepts and skills. 📌 𝐌𝐲 𝐒𝐤𝐢𝐥𝐥𝐬: Angular, AngularJS, Angular CLI, Single Page Applications (SPA), Reactive Forms, Template-Driven Forms, RxJS, NgRx, State Management, Component-Based Architecture, Dependency Injection, TypeScript, JavaScript, Progressive Web Applications (PWA), Lazy Loading, HTML5, CSS3, SCSS, SASS, Bootstrap, Material Design, Angular Material, TailwindCSS, React Native, Vue.js, Vuetify, Pinia, PrimeNG, Kendo UI, Webpack, Babel, ESLint, RESTful APIs, GraphQL, API Integration, CRUD Operations, RxJS Operators, Jasmine, Karma, Protractor, Responsive Design, Cross-Browser Compatibility, Accessibility (WCAG), Figma, Git, GitHub, GitLab, Bitbucket, CI/CD, Docker, Firebase, Websockets, Socket.IO, Data Visualization, Chart.js, Highcharts, Agile Development, Scrum, Jira, Trello, Slack, Website Optimization, Performance Tuning, Lighthouse Audits, Browser Developer Tools, SEO Best Practices, Localization, Internationalization (i18n), Security Practices (OWASP), Design Systems, Component Libraries, Frontend Architecture, Code Refactoring, Debugging, Documentation, UI/UX Collaboration, SaaS Platforms, Ecommerce Platforms, Real-Time Applications.
- JavaScript
- HTML
- SCSS
- Bootstrap
- Angular
- AngularJS
- Angular Material
- TypeScript
- RxJS
- React Native
- REST API
- GraphQL
- Flexbox
- Nuxt.js
- Firebase
Los Angeles, California
📣 FREE technical consultation (details below) 🐻 Proud UC Berkeley graduate (Applied Mathematics & Economics) and an entrepreneurial, reliable full-stack software developer with broad expertise across modern technologies (listed below). 💪💪💪 With experience as: • Full-Stack Team Lead at Camping World, a publicly traded company • Lead Technical Teaching Assistant at Hack Reactor, a leading software engineering bootcamp • Founder of Atini Studio, a high-performance software development agency With years of experience working with clients and leading engineering teams, I prioritize accountability, clear communication, and efficient execution. 🌈🌈🌈 I’m the founder of Atini Studio, a vibrant software development agency and a team I like to call software doctors: highly skilled engineers and creative UI/UX designers who diagnose, fix, and elevate digital products. ⌨️⌨️⌨️ What I help clients with: 📌 MVP development for startups 📌 Full-stack web applications 📌 Cross-platform mobile apps 📌 AI-powered features & integrations 📌 Clean implementation from Figma to production 📌 API integrations (Stripe, OpenAI, Google, Zoom, etc.) 📌 Performance optimization 📌 Technical architecture planning 📌 Product roadmap & scaling strategy We also leverage AI internally to accelerate development workflows and improve efficiency, so you get faster delivery without sacrificing quality. 🧩 Complimentary Technical Consultation Not sure how to move forward with your product? I can help you clarify: • The right tech stack • MVP scope • Timeline and budget expectations • System architecture decisions • Whether your current product is built correctly I offer a complimentary strategy session to help you create a clear and practical execution plan. 💻 Tech Stack: • Front End JavaScript | TypeScript | React | Next.js | React-Native | Angular | Vue.js | Tailwind CSS • Back End Node.js | NestJS | Python | Django | PostgreSQL | MongoDB | MySQL | ORM | GraphQL • API Integrations ChatGPT / OpenAI | Stripe | Google | Zoom | and more... • DevOps Amazon Web Services (AWS) | Firebase/GCP(Google Cloud Platform) | Azure | Docker • Testing Jest | Mocha | TDD • Developer Tools Git | npm | Webpack | Babel | Agile Methodology | Nginx • Design Adobe XD | Figma
- JavaScript
- Node.js
- React
- AWS Amplify
- CSS 3
- RESTful API
- React Native
- Firebase
- Angular
- Amazon EC2
- Database
- WordPress
- ChatGPT
- AI Development
- AWS Development
Rio de Janeiro, Brazil
I build mobile apps — the real kind, native, shipped to the store, used by actual people — and lately the AI systems inside them. I've been doing the first for 20 years and the second long enough to know where it actually pays off. I'm Expert-Vetted on Upwork (top 1% of talent), with 100% Job Success, 5,700+ hours, and $200K+ earned. Behind that is 20+ years in software — a decade architecting enterprise systems at Accenture for Fortune 500s, then CTO of a SaaS startup I scaled from 3 to 30+ engineers and took to consumer scale. I'm completing Stanford's AI Professional Program now. What you get is a CTO-caliber technologist who never stopped writing production code. I work two ways, depending on what you need: ⸻ ★ MOBILE APPS — zero to App Store ★ (fixed-price) You have an idea or a validated concept; I deliver the finished app, live in the App Store and Play Store. Architecture, design, frontend, backend, deployment, and the part most people underestimate — actually getting through store review, native builds, push, Live Activities, the works. I've shipped 20+ mobile apps, several used by hundreds of thousands of people, and I handle the whole build personally. Shipping a native app to a store is a different discipline than deploying a web app, and it's the discipline I've spent years in. ★ AI SYSTEMS — design & build ★ (hourly) Production AI/LLM systems, not prototypes. My recent work is a multi-vendor LLM pipeline that benchmarked 21 model-and-strategy combinations across Claude, GPT, and Gemini over 54 recipe sources in 7 countries — automated quality scoring against an Opus gold-standard reference, and cost tuned across a 150x price spread down to the best quality-per-dollar. The hard part of AI work isn't calling an API; it's knowing where AI actually earns its keep, which model fits which job, and how to architect a pipeline that holds up in production. That's what I do, then I build it — often straight into the mobile products above. ⸻ The background behind that: 10 years at Accenture on large-scale systems for Fortune 500s in healthcare, telecom, oil & gas, and retail. Then CTO at a SaaS startup — engineering scaled 3 to 40, a multi-service platform shipped with payments, identity, and real-time processing running at consumer scale. 📎 Stanford — AI Professional Program (completing August 2026) 📎 Kellogg — Product Strategy 📎 TOGAF Certified Enterprise Architect ⸻ Native Mobile (React Native / Expo, App Store & Play Store delivery) · TypeScript/JavaScript · LLM APIs (Claude, GPT, Gemini) · Prompt Engineering · Multi-Model Pipelines · React · Next.js · Node.js · Supabase · PostgreSQL · AWS · Solution Architecture
- JavaScript
- Node.js
- GraphQL
- React
- React Native
- SQL
- iOS Development
- Android App Development
- Solution Architecture
- J2EE
Abu Dhabi, United Arab Emirates
I build 3D web experiences that make people stop scrolling and actually interact. For the past 10+ years on Upwork (and 4+ deep in Three.js/WebGL), I’ve been helping brands turn flat interfaces into interactive products, whether that’s a product configurator, a landing page that converts, or a full 3D application. I’m not just plugging models into a scene. I care about performance, UX, and why the experience exists. If it doesn’t load fast, feel smooth, and serve a purpose, it doesn’t ship. Most of my work sits at the intersection of: 3D product visualization & configurators Interactive marketing experiences Data-driven / real-time 3D apps Developing Web3-enabled frontends (wallet integration, on-chain interactions). Implementing AI-powered features (smart interactions, data-driven behaviors, and generative workflows inside 3D environments). I work mainly with Three.js, React Three Fiber, GLSL, WGSL. Plus whatever it takes to get the job done cleanly (full-stack development, integration, and cloud deploy). Coming from a design + architecture background, I tend to think in systems, not just scenes. That helps when projects get complex, multiple states, dynamic data, performance constraints, all of it. I am capable of: make a product easier to understand online stand out with something interactive (not just another static page) build a serious 3D web app
- JavaScript
- Three.js
- Web Development
- Blender
- OpenGL
- Game Development
- Virtual Reality
- React
- Responsive Design
- CSS
- GSAP
- WebGL
- Unity
- TypeScript
- Autodesk Maya
Pozuelo de Alarcon, Spain
About Us = = = = At ALGO, we design and develop systems, platforms, and automation powered by AI and emerging technologies. We integrate AI agents, software, data, and infrastructure to turn complex use cases into real, scalable, production-ready solutions. What We Do = = = = We build solutions in: AI, agents, platforms, systems, and automation, along with Blockchain, IoT, Immersive Technologies, Robotics, Game Development, Cybersecurity, Digital Twins, and Quant Engineering. Our focus is clear: moving from isolated experiments to integrated systems that generate real business impact. Why ALGO = = = = ALGO combines advanced engineering, expertise in emerging technologies, and strong execution capabilities to help companies design, develop, and scale complex technology solutions. Let’s build what matters = = = = If you’re looking to turn AI or emerging technologies into real solutions, ALGO can help.
- JavaScript
- Python
- Artificial Intelligence
- API
- Machine Learning
- API Integration
- Automation
- Web Development
- Node.js
- React
- Amazon Web Services
- Graphic Design
- PHP
- PostgreSQL
- Adobe Illustrator
- HTML5
- Web Application
- TypeScript
- Lead Generation
- Next.js
Wood Dale, Illinois
Highly skilled Airtable developer with 8+ years of experience in designing, building, and optimizing custom Airtable solutions. Expertise in workflow automation, data integration, and team collaboration. Proven track record of delivering scalable, user-friendly, and efficient Airtable applications. Key Skills: • Airtable development (bases, tables, views, forms, workflows) • Workflow automation (scripts, APIs, Zapier) • Data integration (APIs, CSV, Google Sheets, Excel VBA) • Team collaboration (permissions, roles, workflows) • Database design and optimization • User interface (UI) customization • Airtable API and scripting
- JavaScript
- Airtable
- Zapier
- Excel Macros
- Automated Workflow
- Automation
- Visual Basic for Applications
- Database Maintenance
- Database Report
- Database Integration
- Database Administration
- Database Design
- Database Development
- Data Migration
- Jotform
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