Hire the Best CSS3 Developers in Scarborough, ON

Software Developer with 3+ years of experience delivering scalable web applications and automation solutions. Strong expertise in JavaScript, React, HTML, CSS, and WordPress, combined with hands-on experience using Python for automation, scripting, and data processing. Skilled in designing and integrating REST APIs, building reusable UI components, optimizing application performance, and debugging complex cross-browser issues. Proven ability to develop efficient, maintainable code and streamline workflows through automation. Experienced in working across the full development lifecycle, collaborating with cross-functional teams, and delivering high-quality, user-focused solutions in fast-paced environments. Technical Skills: JavaScript, Python, SQL, Typescript, HTML5, CSS3, React, WordPress, Kony, JUnit, PyTest, Git, REST APIs, API Integration, JSON, Automation Scripting, Debugging

🚀 AI and AWS Certified Fullstack SAAS Developer building since 2016 with 100% Job Success 🚀 Worked as a Sr. Software Engineer at U.S. Enterprise; "SolarWinds" (~$729M ARR + 300K+ customers). 🚀 Worked as Lead Engineer at "Ericsson (4G/5G)" their 2025 Net Sales was SEK 236.7 billion. 🚀 Worked on both Web and Mobile Apps for "Strava" AI driven Fitness-tracking & Social Networking SAAS Platform (~$2.2B Valuation, ~180M+ users) with GPS-powered exercise logging. During the past 10 years, I have gained hands-on experience in end-to-end Software Development (MVP + SAAS). I helped building, scaling, and modernizing production systems for Startups and large Enterprises alike. I can help with: - MVP & SAAS Development - Web and Mobile Application Development - Frontend and Backend Development - Chrome Extension Development - AI App Development. AI Chatbots and AI Agents - Machine Learning, NLP, LLMs, RAG - CRM and ERP integration + Development - Monolith to Microservices architectures - Cloud Engineering / DevOps - Automations (n8n, Make, Zapier) - AI-driven coding tools (GitHub Copilot, Claude code) - Low-code / no-code tools (Bubble, Retool, Lovable, Bolt, Airtable, Base44) - eCommerce / Shopify Stores 🏆Snapshot of my Technical Skills and Stacks: 🎯Frontend Development: • React, Next.js, Vue.js, Nuxt.js, Angular, Svelte • Redux, Redux Toolkit, MobX, Vuex, Pinia, Context API • CSS3, SASS/SCSS, TailwindCSS, Styled-Components, Emotion, HTML/CSS • SPA, PWA (Offline support, push notifications) 🎯Backend Development: • Node.js (Express, NestJS, Fastify), Python (Django, Flask, FastAPI), PHP (Laravel) • RESTful APIs, GraphQL APIs, WebSockets & Real-Time APIs • Third-Party Integrations (Stripe, PayPal, CRM, Twilio, Sendbird, Google Analytics / GA4, Mailchimp / SendGrid, Google Maps API, Mapbox) • Multi-tenant SaaS, Microservices & Service-Oriented Architecture • Event-Driven Architecture: Queues and message brokers (RabbitMQ, Kafka, Pub/Sub) • Background Jobs & Scheduling: Celery, BullMQ, Sidekiq 🎯 Authentication & Security • Auth0 / Okta / Firebase Auth • OAuth2 / OpenID Connect • JWT – Token-based authentication 🎯Databases: • PostgreSQL, MongoDB, Redis, Firebase / Firestore, Neo4j • Elasticsearch / OpenSearch 🎯AI & LLM Integration: • GPT-4/4o, Claude, LLaMA, LangChain, RAG pipelines • Embeddings, fine-tuning, multi-agent systems • Vector databases (Pinecone, Weaviate, FAISS) 🎯DevOps & Infrastructure: • AWS (Amazon Web Services): EC2, ECS, EKS, Lambda, RDS, S3, CloudFront, Route 53, CloudWatch, Secrets Manager, IAM, DynamoDB, Aurora, Elastic Beanstalk • Google Cloud Platform (GCP): Compute Engine, Cloud Run, Cloud Functions, Cloud SQL, Firestore, BigQuery, Cloud Storage, Pub/Sub • Microsoft Azure: Virtual Machines, Azure Functions, Azure SQL, Blob Storage, Cosmos DB, App Service, Key Vault • Serverless Hosting: AWS Lambda, Google Cloud Functions, Azure Functions for scalable microservices • Traditional Hosting & VPS: Nginx, Apache, cPanel setups, managed WordPress hosting, dedicated servers • Containerization: Docker, Docker Compose • Orchestration: Kubernetes (EKS, GKE, AKS), Helm Charts, deployment pipelines • Version Control & Pipelines: Git, GitHub Actions, GitLab CI/CD, Bitbucket Pipelines, Jenkins • Infrastructure as Code (IaC): Terraform, AWS CloudFormation • Monitoring & Metrics: Prometheus, Grafana, CloudWatch, Datadog, New Relic • Centralized Logging: ELK Stack (Elasticsearch, Logstash, Kibana), OpenSearch, Sentry 🚀 Highlights of my SUCCESS STORIES: ✔ I developed Web, Chrome extension, Android/iOS apps for Coursology “AI Homework Helper,” with a user base of over 600,000 students ✔ I developed and implemented Web + Mobile apps for “Total Dental Healthcare” at 13 Bay Area locations. ✔ I worked with Keyfree Technologies Inc. and developed both hardware and software solutions that facilitate P2P rentals, fleet management, anti-theft, connected services, insurance integration. Why Work With Me? ✅ Proven Track Record; Delivered 50+ projects on time, with excellent client retention ✅ Clean Code & Best Practices; SOLID, DRY, Test-driven ✅ Fluent English communication and Agile Workflows 📩 Click Invite or DM me!

Here’s what I can bring to your project: ✧ Top-notch experience in all of today's most popular WordPress themes and plugins ✧ Brilliant Portfolio ✧ 24/7 ultra-reliable communication Services I provide: • Custom WordPress Website Development • Figma to WordPress | No Template | Custom Development • Divi Expert • Landing Page Design • E-Commerce Solutions • Website Optimization • Mobile Responsiveness • Blog Setup and Content Management • SEO Optimization • Website Maintenance • Expertise in web hosting management and WordPress site migrations, especially on Hostinger • Web-specific technologies (PHP, HTML5, CSS3, jQuery, javascript, SQL/NoSQL, Ajax) Why You Should Choose Me: ✅ Tailored Solutions: I understand that your project is unique, and I take a personalized approach to creating a WordPress website that aligns with your specific needs. ✅ Results-Driven: My focus is on delivering tangible results – whether it's increased user engagement, lead generation, or online sales. ✅ Collaborative Approach: I view our working relationship as a partnership, where your input and feedback are invaluable in shaping the final product. ✅ Continued Support: Even after your website is launched, I'm here to provide ongoing support and assistance to keep your online presence thriving. I am excited to start working, and create something extraordinary together. Feel free to contact me anytime so that I can meet ALL your business needs! MY WORK AREA KEYWORDS: ELEMENTOR | WORDPRESS | SEO | SEARCH ENGINE OPTIMIZATION | DIVI | WP FORMS | UI/UX | HOSTING | HOSTINGER | MAILCHIMP | MENTORSHIP | WEBSITE MAINTENANCE | WEBSITE FIX | THEME FILE EDIT | YOUR DEDICATED SOLUTION

💎 6 years of experience 👨‍💻 Developer behind Forbes Advisor | Hello! I’m Jestin, a seasoned Full Stack Developer with over 6 years of experience in crafting dynamic web and mobile applications. Whether you're launching a new platform or enhancing an existing one, I’m here to deliver top-notch solutions that align with your vision and goals. 🔧 Comprehensive Expertise: Frontend Development: - React.js, Vue.js, Next.js - JavaScript/jQuery, HTML5, CSS3, Bootstrap Backend Development: - PHP (Laravel, CakePHP, CodeIgniter, WordPress) - Node.JS/Express.JS Database Management: - MySQL, MSSQL, MongoDB, PostgreSQL, Oracle Hybrid Mobile Apps: - React Native 🔍 Advanced Technical Skills: - API Development: Social Networking, Payment Gateway, Marketing - Other Technologies: OCR, Motion Tracking, Logo Detection, Vehicle Counting - Cloud & Deployment: Firebase, AWS, Heroku - Desktop Applications: Electron 🚀 Why Work With Me? - Detail-Oriented: Clean, maintainable, and efficient code. - Goal-Focused: Thrive in fast-paced environments, consistently achieving project goals. - Client-Centric: Prioritize understanding your needs to deliver tailored solutions. Let’s transform your ideas into reality with cutting-edge technology and exceptional development practices. Whether you're launching a new project or improving an existing one, I’m here to help. 📩 Ready to Collaborate? Just a Message Away!

Driven and proficient Full Stack Developer, adept at leveraging both Front End and Back End Technologies. Thrived in dynamic, high-tech environments, seamlessly collaborating with cross-functional teams through the Agile Methodology. My Skills: 1. Javascript and Typescript 2. Angular, Ionic 3. React Js, React Native 4. Angular Js 5. Node Js with Express Js 6. MongoDB, MySQL, PostgreSQL 7. HTML, CSS, Bootstrap, Angular Material, Material UI My Services: 1. Web Development 2. Mobile App Development 3. API Development 4. Migration of existing website to new technology 5. Bug Fixing 6. Code Review 7. Code Refactoring Give me a chance to showcase my projects and skills. I am sure you will be happy with my work. All the projects that I mentioned in the Portfolio section are mostly developed for fun and learning. I won't be able to share the projects that I worked for businesses due to NDA. I am new on upwork and all i need is a chance to prove myself.