Hire the Best Ubuntu Developers in California
Los Angeles, California
Hi, I'm Dylan – a Shopify Partner developer and designer based in Los Angeles with 15+ years of experience in web development, e-commerce, and graphic design. I help brands elevate their online presence with high-performance Shopify stores, seamless integrations, and conversion-driven design. I have helped businesses double and triple their online sales while working with me. If you want a Shopify store that is truly fine tuned and the driving force of your business, I'd love to hear from you! My Expertise Includes: ✅ Custom Theme Development & Shopify 2.0/Liquid ✅ Shopify Plus, Shopify POS, ✅ Conversion & Speed Optimization ✅ App Integrations: Klaviyo, Back in Stock, Exit Intent Pop-ups, Recharge and more ✅ Custom Shopify Apps & API Integrations ✅ ADA Compliance Audits & Development ✅ Advanced Checkout Customizations ✅ Headless Shopify Stores, Shopify Oxygen ✅ SEO, Audits, A/B Testing ✅ Senior Level WordPress/WooCommerce Development ✅ WordPress/WooCommerce to Shopify Migrations ✅ Branding & Custom UI/UX Design ✅ Speed Performance & Auditing ✅ Unique Portfolio or Artist Sites ✅ Full-stack Web Development As a Shopify Partner and WordPress expert, I blend modern design, branding, and technical development to create standout e-commerce experiences. I’ve worked with tech startups, e-commerce brands(DTC), restaurants, food/beverage and fashion labels, helping them scale with Shopify 2.0, Liquid, and top-tier design solutions. 🥇 Top Rated Contractor since 2018 🥇 15+ years of professional experience 🥇 100% Client Satisfaction Rate 🥇 300+ real stores built/customized on Shopify in the last few years 🥇 Shopify Plus Partner since 2018 🥇 8 and 9-figure clients (On Upwork and Independently) I offer a boutique experience backed by agency-level enterprise expertise (I worked as a creative director for a web development agency for many years), ensuring a hands-on, strategic approach for ambitious brands. Whether you need a new site build, complex feature customization, or performance optimizations, I deliver ADA-compliant, mobile-first, and high-converting solutions. My pricing: Custom themes for Shopify range from $1k - $10k+ Hourly projects are negotiable based on needs/complexity Let’s get to work! Message me today to discuss your project! Tech Stack: Design Software: Adobe Suite, Figma, Canva CMS: Shopify, Shopify Plus, WordPress, Squarespace, Wix, Sanity Languages & Frameworks: HTML5, CSS, SQL, SCSS, JavaScript, jQuery, Webpack, PHP, JSON, Node.js, React.js, and many many more. Servers & OS: Apache, cPanel, AWS, Ubuntu, Railway Familiar Hosts/Domain Providers: Bluehost, Siteground, Cloudways, Namecheap, GoDaddy, Vercel Don't see what you're looking for? Feel free to ask me about anything else you need help with! About me: Born and raised in Chicago, IL, but now live in Los Angeles with my wife. We have two cats (my supervisors) and we love the outdoors. I went to college in Chicago for web development (UX/UI). I'm really passionate about music, art and brand direction. I have a full professional level graphic design background. I'm easy to work with, very friendly, polite, and have great communication and grammar!
- Shopify
- Shopify Website Redesign
- Shopify Plus
- Shopify Website Design
- Shopify Theme
- Liquid
- Responsive Design
- Search Engine Optimization
- Theme Development
- Theme Customization
- Klaviyo
- Shopify Development
- Conversion Rate Optimization
- Design Enhancement
- Ecommerce Performance Optimization
San Diego, California
Senior WordPress Developer. Reliable and responsive. Result-oriented work. On time. "Top Rated Plus" Upwork premium freelancer, member of an Upwork PRO group. 14+ years skill in full-stack web site development (prototype, graphic design, front-end, back-end, SEO). Back end experience: PHP (WordPress, Laravel), C# (ASP .NET MVC, Web API, Entity Framework, Orchard, Kooboo, Umbraco). Front end experience: HTML5 / CSS3, SASS, LESS, Bootstrap 5, Html5 animation, JS, jQuery, AJAX, Json, Rest API, Angular 1-2-4, React.js, Vue.js, Node.js, Three.js. Other experience: Windows/Unix Server administration, Git, Azure, AWS and cloud solutions. In terms of WordPress can provide: ✔️ custom theme design or theme/template modification; ✔️ responsive HTML (will pass Google mobile-friendly test, work on any device and OS); ✔️ retina display support; ✔️ HTML5 animation if needed; ✔️ WordPress/Woo back end; ✔️ WordPress multisite and membership, BuddyPress, bbPress; ✔️ custom plugin development; ✔️ 3rd-party services and payment systems API integration; ✔️ SEO, make AMP compliant, setup CDN (Cloudflare); ✔️ support; ✔️ warranty. Great experience with: ✔️ e-commerce; ✔️ payment systems integration (PP, Stripe, Authorize.net and similar); ✔️ Google Maps API (custom design, clusters, routing, radius, speed/time/distances calculation, etc.); ✔️ responsive CRM and dashboards, high-traffic web-projects; ✔️ experience with Microsoft Power BI. Keep the warranty, always available, fast response and turnaround. === TAGS === WordPress Developer ; WordPress expert ; Fullstack developer.
- WordPress
- WooCommerce
- PHP
- WordPress Plugin
- WordPress Development
- Elementor
- WordPress Theme
- WordPress Security
- WordPress Multisite
- WordPress Customization
- Web Design
- CSS
- JavaScript
- HTML
- Vue.js
San Diego, California
25+ years in Software Development Available for 40-60 hrs./wk. Excellent references from CEOs of the companies. Bringing products to market: inception, spec, architecture, implementation, testing. Seeking for software development projects in the following areas on Windows Platforms: - Recent successful GPT-3/3.5/4 API experience with C#, DALL-E interface, and OpenAI Whisper. - Experience of developing RAG Web Service enabling chatting with private corpus of documents, based on Azure Cognitive Search SDK, Azure OpenAI API and Azure Cosmos Vector DB for vector, hybrid, and semantic search. Segmenting Word/PDF/Excel/CSV/Text documents, embeddings, and ingestion. - Worked with ML.NET in VSTO Outlook Add-In environment for email classification. - Experience with Text-To-Speech and Speech-To-Text using AWS, Azure, Google, Eleven Labs, and other vendors. Experience with Google Voice Services, including Diarization (recognition of different speakers and designation in the transcript), and Medical Transcription. Able to produce STS (Speech-to-Speech) application - interacting with ChatGPT over microphone and speakers. Recent Development Experience of TTS with OpenAI. - AI Training of basic GPT models using fine-tuning, and embedding techniques with vector databases, such as Pinecone, Qdrant, and Milvus APIs. - OpenAI Completion and Embeddings API, GPT-3/3.5/4, Whisper API for Transcribing and Translation - Azure Semantic Kernel, Azure Data Explorer (ADX), Azure Blob Storage, Azure Analytical Services. - AWS Text-To-Speech, AWS Storage - Web Services: REST-API, ASP.NET Framework and Core, WCF Web Services, Microservices - Azure Active Directory Authentication from Desktop Applications in C# - Desktop applications with C#/.NET Framework/.NET Core, WinForms, WPF, DevExpress - Microsoft Office VSTO/COM Add-Ins for Outlook, Excel, Word, and PowerPoint - Client/Server Systems: Sockets and high-level protocols, such as HTTP, FTP, MQTT - Windows Services - Microsoft Dynamics 365 - Hardware Interface: USB/RS232/RS485 Technologies and Frameworks: - Languages: C#, C/C++, Python, MicroPython, XML, JSON - Databases: SQL, SQLite, MySQL, Entity Framework 6/Core and LINQ. - Networking: Sockets (.NET and Winsock), REST API, WCF, HTTP, FTP, MQTT, packet-level TCP/IP, - Serial (RS232/RS485), MODBUS. - IDE: Visual Studio 2010 through 2022 - Office Add-Ins: VSTO Add-ins for Outlook, Excel, Word, PowerPoint. Add-In Express Framework. - VOIP: PJ SIP Stack with DBUS, Asterisk, Open Phone Abstract Library (OPAL) - Active Directory/LDAP/ADSI - Monte Carlo Simulations in C# - Linux: C/C++ and Python with MQTT Development on Ubuntu and Raspbian. - AES256 Encryption, Monte-Carlo Simulations, SHA256, PGP/GnuPG PKI (Public Key Infrastructure) Application binaries signing (Authenticode), Security Certificate generation in code based on CA. - Installers with Advanced Installer, Deployment strategies. - Product Licensing
- Windows Forms
- C++
- C#
- Microsoft Visual Studio
- C
- XML
- DevExpress
- JSON
- Web Service
- Microsoft Outlook
- Winsock
- TCP/IP
- Microsoft Excel
- Plugin Development
- Quantitative Analysis
San Diego, California
Engineering leader with 18 years at Intel and Workday, now available for fractional and contract engagements. I've built and managed global teams of 18+ developers, standardized estimation practices across multiple Scrum teams, and served as the go-to technical escalation point for 75+ university clients on a major SaaS platform. I've build out and delivered rally-rank - a mobile first app delivered to both the google play store and the apple app store. I've also consulted for the sherard show - a content management platform using AWS for video and content delivery. I also do hands-on technical audits — codebase reviews, architecture assessments, process evaluations — backed by real operational experience, not just theory. Recently shipped a React Native app (iOS + Android) end-to-end to stay sharp on the tools your developers are using. BS in Computer Science & Mathematics, Cal Poly Pomona. Strongest in fintech, SaaS, and mobile. I'm well versed in Claude Code. I can help you with your development workflow and train you how to use Claude Code so that it optimizes your development flow.
- Python
- JavaScript
- AI Agent Development
- CI/CD
- GitHub
- Docker
- React Native
- Supabase
- Firebase
- SQL
- Microsoft SQL Server
- App Store
- Node.js
- Full-Stack Development
- Large Language Model
San Francisco, California
Hi there, I design and build scalable cloud-native platforms. • AWS DevOps Professional Certified • Proficient in EC2, ECS, EKS, Terraform, and CI/CD automation My Platform Engineering Services: • Infrastructure as Code (Terraform, Ansible) • Kubernetes (EKS, GKE) • Containers & Orchestration (ECS, Fargate, Docker) • Observability (Prometheus, Grafana, OpenTelemetry) • Cost Optimization & Auto Scaling • Secure CI/CD Pipelines (GitHub Actions, CodePipeline) • AWS (VPC, IAM, RDS, S3, CloudFront, ACM, Route 53) • GCP, DigitalOcean, Vercel migrations • Secrets Management (SSM, Secrets Manager, Vault)
- CMS Development
- RESTful API
- Full-Stack Development
- Back-End Development
- DevOps
- Front-End Development
- AWS Development
- Next.js
- CI/CD
San Diego, California
Working in the start-up and technology space for over 30 years, I have a history of successfully leading software development, AI-powered product launches, and technical strategy initiatives. As a technical executive, I work closely with domain experts, engineers, and stakeholders to drive product vision; as an engineer, I contribute hands-on across the full stack. From a technical standpoint, I work across Node.js, TypeScript, Python, PHP, Bash, Go, and Rust, with experience in cloud-native architectures on AWS, GCP, and Digital Ocean. I build and deploy with Docker, Terraform, and GitHub Actions CI/CD pipelines, and I maintain a self-hosted private infrastructure lab supporting local AI model serving, automated testing, and development workflows. My database experience spans PostgreSQL, MySQL, MongoDB, Redis, Qdrant (vector DB), and more. My extensive AI experience includes context engineering, RAG pipelines (embeddings, vector search, reranking), and agentic coding workflows. I work with LLM providers including OpenAI, Anthropic, Google, Meta, Cerebras, Groq, and DeepSeek, and I build with tools like vLLM, Ollama, LangChain, and PyTorch. I've developed custom MCP servers, AI-assisted development toolchains for Claude Code, Gemini CLI, and Qwen Code, and I maintain an active open-source portfolio including llm-interface (120+ GitHub stars). Recent project work includes a production Rust API for brand voice alignment through stylometric analysis — a ground-up rewrite from Python with ML-based content safety and optional CUDA GPU acceleration. I have a diverse management background, leading teams of various sizes and configurations — on-site, remote, nearshore, and offshore — with Agile and SCRUM methodologies (Certified Scrum Master). Notable accomplishments include: - Co-founded two public companies achieving peak valuations of $600M and $73M - Built data acquisition pipelines including proxy-based web scrapers and reverse-engineered proprietary validation schemas, improving extraction accuracy from 9% to 81% for a major utility client - Founded and ran a technology consultancy for 8 years, delivering enterprise CMS software, a contextual advertising network, and services including SEO, security audits, and custom development - Led and mentored teams ranging from 5 to 24 members across multiple companies, from early-stage startups to growth-stage ventures - Established TDD practices with automated CI/CD across all active projects, backed by dedicated self-hosted infrastructure I am confident I can hit the ground running and immediately become a valuable asset to your project. My experience as both a technical leader and a hands-on contributor means I can operate at whatever level your engagement requires — from architecture and strategy down to shipping code.
- JavaScript
- PHP
- Node.js
- Prompt Engineering
- Software
- Software Development
- Scrum
- Product Development
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