Performance Tuning Specialists For Hire
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Hire slaguiban
I am a full-stack engineer with over 9 years of experience in web development, managing all aspects of the development process. I have worked on 15+ projects and solved complex business problems in various industries including booking, healthcare, eCommerce, pet salon, and car insurance. I have consistently saved...I am a full-stack engineer with over 9 years of experience in web development, managing all aspects of the development process. I have worked on 15+ projects and solved complex business problems in various industries including booking, healthcare, eCommerce, pet salon, and car insurance. I have consistently saved costs while increasing profits. I am keen on writing clean and reusable code using best practices. - Netsuite/ERP - React/NextJs/Vue - React Native/SwiftUI - Laravel/Nodejs/Django - AWS/Azure less -
Hire Bwatter
✅ Your success is guaranteed because my progress depends on it ✅ I provide fast, high-quality solution to your project quickly and I am available to start your work immediately. Contact me via chat💬 to discuss and start your project now. I know you need someone who understands your goals, and is available to help...✅ Your success is guaranteed because my progress depends on it ✅ I provide fast, high-quality solution to your project quickly and I am available to start your work immediately. Contact me via chat💬 to discuss and start your project now. I know you need someone who understands your goals, and is available to help you immediately by ensuring you succeed because his success ultimately depends on your progress. As highlighted on my profile, my contributions have significantly impacted my client success, leading to numerous positive reviews (⭐⭐⭐⭐⭐) for projects completed. You will experience the best level of service professionalism because clients who have worked with me confirmed it and made these glowing reviews: "Good Communication, Knowledgeable and understanding." "Second time working with Okaerezina, and his work is impressive! Will work with him again." "Did a great job before deadline." "Good work and fast!" "Pure Excellence!!! Shall continue to use his services in the future." Area of proficiency and vast experience: ✅ Programming: ✓ Python ✓ R ✓ JavaScript ✓ VBA ✓ PHP ✅ Accounting Services ✓ Bookkeeping ✓ Account Balancing ✓ Account receivable ✓ Account payable ✓ QuickBooks ✓ Invoicing ✓ Credit Note ✅ Web Services: ✓ WordPress ✓ Shopify ✓ WIX ✓ Drupal ✓ Joomla ✓ Squarespace ✓ Email Template Design ✓ XML ✓ HTML5 ✓ HTML ✓ CSS ✓ CSS3 ✓ Responsive Web Design ✓ Progressive Web Apps (PWA) ✅ Data Entry/Processing & PDF Services: ✓ Spreadsheet - Google Sheets, Microsoft Excel ✓ Document - Google Docs, Microsoft Word ✓ Copy Typing ✓ Slide - PowerPoint, Google Slides ✓ Pdf/Word/Web to Excel ✓ Excel to Web ✓ Excel to XML ✓ W2 Form ✓ 1040 form ✓ Paystubs ✓ Bank Statements ✓ Electronic Form (Field Validation, Auto Calculation, Auto Population) ✓ Forms ✓ Excel VBA ✓ Google Sheet Automation ✓ Excel Formula ✓ Macros ✅ IT Support Services: ✓ Microsoft Office / 365 support ✓ LibreOffice ✓ Operating System ✓ Troubleshooting ✓ Computer Repair ✓ Network Administration ✓ Network Security ✓ Performance Tuning ✓ Active Directory ✓ Technical Support ✓ Application Support ✓ System Administration ✅ Database/Data Analysis Services: ✓ Web Search ✓ Research ✓ Product Sourcing ✓ Market Research ✓ Internet Research ✓ Business Research ✓ Web scraping ✓ Data Collection ✓ Data Cleansing ✓ Data Modeling ✓ Data Analysis ✓ Data Management ✓ Database Management ✓ Project Management ✓ Claris FileMaker ✓ Microsoft Access ✓ SQL ✓ MySQL ✓ Data Visualization ✓ Tableau ✓ Microsoft Power BI with DAX development ✓ Reports ✓ Dashboards ✅ Additional Services: ✓ Oracle Primavera ✓ Contact List / VCard for Windows, Mac, Apple, Android, Outlook ✓ Audio Services ✓ Audio Processing ✓ Audio/Video Transcription ✓ Virtual Assistant ✓ Search Google for Specific Company's Website and contact details ✓ Inventory Management Thank you for visiting my profile as I look forward to a successful, positive working relationship with you! Write me via chat💬!!! less -
Hire adisonw
------------------------------------------------------------------------------------------------------------------------------------------------------------------ ⚡ Need a Software Engineer that the CLIENTS LOVE? Let's talk!⚡ Welcome to be here and thank you so much. I believe you are interested in me when you visit...------------------------------------------------------------------------------------------------------------------------------------------------------------------ ⚡ Need a Software Engineer that the CLIENTS LOVE? Let's talk!⚡ Welcome to be here and thank you so much. I believe you are interested in me when you visit my profile page. I am a highly skilled Full Stack, Mobile Engineer, AI, and Blockchain with over 11+ years of hands-on experience. I've successfully built several websites, mobile apps, AI project, and Web3 apps, and these will be great help for future work. ⭐ Tech Stack: ✔️ Frontend: HTML, React, Next, Vue ✔️ Backend: PHP, Express, Django ✔️ Mobile: Flutter, React Native, Kotlin, Java, Swift ✔️ Database: MySQL, PostgreSQL, MongoDB ✔️ Payment: Stripe, Paypal ✔️ AI: Python, Tensorflow, Keras ✔️ Web3: Solidity, Rust, Smart Contract ⭐ Help you with: ✔️ Develop responsive, modern Web apps. ✔️ Build secure and stable Backend ✔️ Develop cross-platform Mobile apps ✔️ Integrate payment gateways ✔️ Implement efficient CNN + LSTM ✔️ Develop sophisticated Smart Contact ✔️ Support real-time communication ⚡ Now I can swear ⚡ " I am the dev who will consider your project as my own. Deadlines, clean code, and performance? I won't miss. I will never let you worry or be disappointed with your project." less -
Hire sasaprogramer21
Seasoned software developer with over 7 years of experience in web, mobile, desktop, and AI/ML development. Proven track record of successfully delivering complex, large-scale projects for top-tier IT companies in Europe. Highly skilled in tackling challenging technical problems and collaborating effectively with...Seasoned software developer with over 7 years of experience in web, mobile, desktop, and AI/ML development. Proven track record of successfully delivering complex, large-scale projects for top-tier IT companies in Europe. Highly skilled in tackling challenging technical problems and collaborating effectively with cross-functional teams. Committed to providing professional, high-quality solutions and maintaining strong communication with clients. Web Development: React, Angular, Vue.js, Node.js, Express, PHP, Laravel Mobile Development: Android (Java, Kotlin), iOS (Swift, Objective-C) Desktop Applications: C#, .NET, Electron, Qt AI/ML: Python, TensorFlow, PyTorch, scikit-learn, Natural Language Processing Databases: MySQL, PostgreSQL, MongoDB, Redis DevOps: Docker, Kubernetes, AWS, Azure, GCP Project Management: Agile methodologies, Scrum, Kanban less -
Hire natesd
✅Python✅PHP✅Scraping✅ Automation ✅Full-Stack ✅Mobile✅Web3✅Excel + Power BI I'm a Staff-level Software Engineer with 20+ years of experience building complex systems across startups and global companies like Cisco Systems and Qualcomm. I specialize in designing and delivering production-grade systems end-to-end - from...✅Python✅PHP✅Scraping✅ Automation ✅Full-Stack ✅Mobile✅Web3✅Excel + Power BI I'm a Staff-level Software Engineer with 20+ years of experience building complex systems across startups and global companies like Cisco Systems and Qualcomm. I specialize in designing and delivering production-grade systems end-to-end - from low-level real-time infrastructure all the way up to full-stack web and mobile applications. Most developers focus on one layer. I bring deep systems expertise + full-stack execution, which means I can take ownership of your entire product. ⚡ What I Do 🔹 Real-Time & Performance-Critical Systems Low-latency applications, streaming, audio/video, and systems that must perform under pressure. 🔹 AI Integration (Production, Not Hype) RAG systems, speech processing, and integrating AI into real-world products. 🔹 Full-Stack & Mobile Development Modern web apps and cross-platform mobile apps when needed—built on solid backend architecture. 🔹 System Architecture (0 → Scale) I design systems that are maintainable, scalable, and ready for real users—not just prototypes. 🏆 Experience Highlights Technical Lead — Cisco Systems ✔ Led real-time audio and ML-powered systems used in Webex ✔ Delivered cross-platform production systems (desktop + mobile) ✔ Owned architecture from design to deployment Senior Software Engineer — BabbleLabs ✔ Built real-time AI speech systems from scratch ✔ Developed system-level integrations across OS environments 🧩 Technical Breadth Systems & Backend: C/C++, Python, Go, Node.js, distributed systems, microservices Full Stack: React, modern frontend frameworks, REST APIs Mobile: Cross-platform + native integration experience AI / Data: LLMs, RAG, speech processing, real-time ML Platforms: Linux, macOS, Windows 🎯 What Makes Me Different Most freelancers: -Build features I: 💪Design systems that last 💪Solve complex engineering problems 💪Own projects end-to-end 📩 Let’s Talk If you need someone who can design, build, and scale your system the right way, send me a message - I'll help you define the best approach before we start. less -
Hire albertof73
albertof73 albertof73
$50 USD / hour
⭐Software Engineer⭐Mobile⭐Game⭐WordPress⭐Shopify⭐United States👋 SENIOR FULL STACK ENGINEER | 19+ YEARS EXPERIENCE I'm a Senior Full Stack Software Engineer with over 19 years of professional development experience, delivering production-grade web apps, mobile platforms, and cloud infrastructure for companies ranging from fast-moving startups to Fortune 100 enterprises like...👋 SENIOR FULL STACK ENGINEER | 19+ YEARS EXPERIENCE I'm a Senior Full Stack Software Engineer with over 19 years of professional development experience, delivering production-grade web apps, mobile platforms, and cloud infrastructure for companies ranging from fast-moving startups to Fortune 100 enterprises like Norfolk Southern and Walmart. I build scalable, maintainable, high-performance systems — the kind that don't break in production and don't accumulate technical debt. 🛠️ MY CORE TECH STACK 🎨 Frontend: React, Next.js, TypeScript, Redux, Tailwind, Responsive & Accessible UI (WCAG 2.1) 📱 Mobile: React Native, Android (Java/Kotlin), PWA ⚙️ Backend: Node.js, Express, NestJS, Java, Spring Boot, REST & GraphQL APIs, Microservices ☁️ Cloud & DevOps: AWS (EC2, S3, Lambda, RDS, ECS, EKS), Docker, Kubernetes, Terraform, Jenkins, GitHub Actions, CI/CD 🗄️ Databases: PostgreSQL, MySQL, MongoDB, Redis, DynamoDB 🧪 Quality: TDD, Jest, JUnit, Code Reviews, Agile/Scrum, Git 🚀 SERVICES I OFFER ✅ Full-Stack Web App Development (end-to-end) ✅ Frontend Development with React / Next.js / TypeScript ✅ Backend & API Development (REST, GraphQL, microservices) ✅ Cloud Architecture & AWS Migration ✅ DevOps & CI/CD Pipeline Setup ✅ Code Audits, Refactoring & Legacy Modernization ✅ Mobile App Development (React Native, Android) ✅ Technical Mentorship & Team Augmentation 📈 SELECTED RESULTS 🔹 Norfolk Southern — Architected AWS infrastructure with 99.9%+ uptime; cut microservice latency by 40% 🔹 Walmart — Reduced deployment time by ~60% through CI/CD automation 🔹 InstaFit — Scaled consumer fitness platform during high-growth phase 🔹 Multiple Clients — Delivered dozens of full-stack apps with zero production downtime during migrations 🔹 Mentored 5+ junior/mid engineers on TDD, clean code & modern architecture 💡 WHY CLIENTS HIRE ME AGAIN ⭐ 19+ years of senior-level experience — I solve, I don't experiment on your dime ⭐ Clear communication — responses within 1–3 hours during working hours ⭐ Honest timelines — I tell you what's risky upfront ⭐ Clean, tested, documented code ⭐ Bilingual (English & Spanish) — comfortable with US & LATAM clients ⭐ Long-term partner — most of my clients come back 🌎 AVAILABILITY 📅 Flexible hours covering US & LATAM time zones 💬 Response time: usually within a few hours 💼 Hourly, fixed-price, or retainer engagements 🔒 NDA-friendly 📩 LET'S TALK Send me a message with: 1. What you're building (or trying to fix) 2. Your timeline & rough budget 3. Any technical preferences or constraints I'll reply within a few hours with honest feedback. Looking forward to building something great with you. 🚀 less -
Hire anumdev333
Full Stack & AI Developer | Laravel | PHP | WordPress | Wix | React | Vue | Node.js | Next.js | AI Automation | Cloud Solutions I build fast, scalable, and conversion-focused web applications and AI-powered systems using modern full-stack technologies. With 7+ years of hands-on experience, I develop robust digital...Full Stack & AI Developer | Laravel | PHP | WordPress | Wix | React | Vue | Node.js | Next.js | AI Automation | Cloud Solutions I build fast, scalable, and conversion-focused web applications and AI-powered systems using modern full-stack technologies. With 7+ years of hands-on experience, I develop robust digital products that combine clean architecture, performance, and real business impact. I work across backend, frontend, and AI systems to deliver complete end-to-end solutions—from idea to production-ready deployment. ⭐Core Expertise I develop custom web applications using PHP and Laravel, building secure APIs, SaaS platforms, and complex backend systems. I create high-performing WordPress websites with custom themes, plugins, WooCommerce stores, and advanced page builders like Elementor and Divi. On the frontend, I build responsive, modern interfaces using React.js, Vue.js, Next.js, JavaScript (ES6+), TypeScript, HTML5, and CSS3 with Tailwind CSS and Bootstrap when needed. I also design and implement AI-driven systems including LLM integrations, OpenAI API solutions, NLP pipelines, Computer Vision (YOLO, object detection), predictive models, and workflow automation. ⭐Technologies & Tools ✔️ Backend: PHP, Laravel, CodeIgniter, Node.js, Express.js ✔️ Frontend: React.js, Vue.js, Next.js, TypeScript, Tailwind CSS ✔️ CMS & E-commerce: WordPress, WooCommerce, Shopify ✔️ AI/ML: OpenAI API, LLM apps, NLP, Computer Vision, TensorFlow, PyTorch ✔️ Mobile: Flutter, React Native ✔️ Cloud & DevOps: AWS (EC2, S3, Lambda), Docker, server deployment & optimization ✔️ Automation: Zapier, Make.com, n8n, custom API workflows ✔️ Databases: MySQL, PostgreSQL, MongoDB ✔️ Version Control & Workflow: Git, GitHub, Bitbucket ⭐What I Deliver ✔️ Full-stack web applications and SaaS platforms ✔️ WordPress custom development and performance optimization ✔️ WooCommerce stores with advanced functionality ✔️ AI-powered tools, chatbots, and automation systems ✔️ API integrations and third-party system connectivity ✔️ Web scraping, data extraction, and backend automation ✔️ Speed optimization, security hardening, and scalable architecture I’ve delivered 50+ successful projects combining modern UI, strong backend architecture, and AI-driven features to improve business efficiency and user experience. Let’s build something scalable, fast, and actually useful for your business. Best regards, Anum Sheraz less -
Hire johnnier3
Hi, I'm Johnnie Reece, a Preferred Freelancer and senior full-stack engineer. For 10+ years I've shipped web, mobile, and emerging tech for startups and Fortune 500 companies, on time and without surprises. What I build: - Pixel-perfect web and mobile apps (React, Next.js, React Native, Flutter) scoring 98-100 on...Hi, I'm Johnnie Reece, a Preferred Freelancer and senior full-stack engineer. For 10+ years I've shipped web, mobile, and emerging tech for startups and Fortune 500 companies, on time and without surprises. What I build: - Pixel-perfect web and mobile apps (React, Next.js, React Native, Flutter) scoring 98-100 on Lighthouse - Secure, scalable backends in Node.js/NestJS, Java/Spring Boot, .NET, and Python - High-performance Shopify and WordPress stores, custom apps, and headless setups - Blockchain dApps, smart contracts, and Web3 integrations - Automation bots, scrapers, and AI workflows - AWS infrastructure with 99.99%+ uptime and auto-scaling How I work: Daily updates, live demos, direct access (no middlemen). I act as your technical partner, flagging risks early and writing clean, documented code built to last. Clients come back because I ship faster, cleaner, and more reliably. Ready to start? Message me. I reply fast and can begin immediately. less -
Hire saadhey
💡 ZERO UPFRONT COSTS | MULTIPLE DESIGN OPTIONS | UNLIMITED REVISIONS | 24/7 AVAILABILITY Hello there! 👋 I’m a performance-focused Full Stack Developer & Creative Designer with 8+ years of experience crafting high-quality digital solutions. Whether it’s custom web applications, engaging UI/UX designs, or...💡 ZERO UPFRONT COSTS | MULTIPLE DESIGN OPTIONS | UNLIMITED REVISIONS | 24/7 AVAILABILITY Hello there! 👋 I’m a performance-focused Full Stack Developer & Creative Designer with 8+ years of experience crafting high-quality digital solutions. Whether it’s custom web applications, engaging UI/UX designs, or conversion-driven ad campaigns, I help brands grow and make a strong online impact. 🚀 WHY CHOOSE ME ✅ All-in-one solution for Development, Design & Digital Marketing ✅ Clean, pixel-perfect UI/UX with seamless user journeys ✅ Quick communication & timely project delivery ✅ Payment only after complete satisfaction 🔹 MY MAIN SKILLS Web Development & Full Stack Solutions ✅ MERN Stack (MongoDB, Express, React.js, Node.js) ✅ WordPress & WooCommerce Development ✅ Shopify Store Setup & Customization ✅ Custom Web Apps & API Integrations ✅ Fully Responsive & Mobile-Optimized Design ✅ Website Support & Speed Enhancements ✅ Third-Party APIs & Payment Integrations ✅ Robust & Scalable Web Applications 🎨 UI/UX & Creative Services ✅ UI/UX Design for Websites & Mobile Applications ✅ Logo Creation & Brand Identity ✅ Vector Art & Illustrations ✅ Motion Design, Animations & Video Editing ✅ Infographics & Presentation Materials 📈 Marketing & Advertising ✅ Google Ads (Search, Display, Shopping) ✅ Meta Ads (Facebook & Instagram) ✅ Social Media Handling & Content Strategy ✅ SEO-Optimized Design & On-Page SEO 💡 I focus on delivering outcomes, not just making claims. Every project is handled with attention to detail, creativity, and a strong focus on ROI. 🤝 Let’s collaborate to turn your ideas into reality—whether you need a high-converting website, eye-catching design, or ad campaigns that generate results. 🚀 Ready to begin? Click Hire Me and let’s create something great together! less -
Hire iosifpeterfi
Senior Systems & Security Engineer with 15+ years in enterprise-grade IT. I design, harden, and operate high-availability infrastructure, and I streamline delivery with automation and clean processes. My focus: reliability, security, and clear documentation—so changes are low-risk and handovers are...Senior Systems & Security Engineer with 15+ years in enterprise-grade IT. I design, harden, and operate high-availability infrastructure, and I streamline delivery with automation and clean processes. My focus: reliability, security, and clear documentation—so changes are low-risk and handovers are effortless. Strengths: • Infrastructure architecture & operations (Linux/Windows, virtualization, networking) • Security hardening, identity & access, monitoring/observability • Automation & DevOps practices (CI/CD, config management, IaC) • Cloud platforms, Docker, Kubernetes • Data pipelines, Zoho/ERP integrations, BI dashboards • Migrations and upgrades with minimal downtime • Concise runbooks, risk-aware planning, and stakeholder-friendly communication Certifications: CompTIA Security+, Microsoft MCSE/MCSA/MCITP Languages: English (C2), German (C1), native Romanian Location: Germany • NDA-friendly • Reliable and responsive less
