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$75/hr
100%
Job Success
$7K+ earned
Offers consultations
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SQL Server slow? SQL Server Agent jobs failing? Planning an Azure SQL migration and need to know what will break? I diagnose the problem, explain it in plain English, and give you a prioritized plan.
I have worked with Microsoft SQL Server for more than 20 years. I am Expert-Vetted on Upwork, with a 100% Job Success Score and 5.0 feedback across eight jobs.
Most engagements begin with a focused diagnostic. We meet through Upwork, I review what is actually happening, and you get a straight answer. The cause may be a query, an index, configuration, a failed job, or an architecture decision.
If it is a small fix, I will say so. If it needs a larger effort, I will define that work before you commit.
WHAT I HANDLE
- Slow queries and execution plans
- SQL Server Agent job failures
- Index, memory, tempdb, and configuration problems
- SSIS packages failing after environment changes
- Reports with inconsistent or untrusted results
- Azure SQL migration readiness and execution
Beyond database rescue, I build and modernize line-of-business applications in C#, ASP.NET Core, Blazor, and Azure. I also work on AI features that must operate against existing SQL Server data and permissions. That work starts with the business question, access rules, and a clear way to verify the result.
BACKGROUND
I have run Coding Innovations since 2009. My work includes healthcare, retail, supply chain, and automotive systems. Before that, I was a lead developer and architect at Perot Systems (Dell).
Credentials: MCSA SQL 2016 Database Development, MCDBA for SQL Server 2000, MCAD (.NET), Certified ScrumMaster. US military veteran.
I work remotely on consulting engagements.
HOW TO START
Use Upwork Messages to tell me what changed, when it started, and what business process is affected. If you have an execution plan or error message, include it. I will tell you the next useful step.
$60/hr
$70K+ earned
Available now
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Senior QA Engineer with 13+ years of experience across manual testing, test automation, performance testing, and QA leadership. I specialize in building QA processes and automation frameworks from the ground up. I've done this repeatedly, for companies ranging from Web3 startups to fintech platforms to SaaS products, often as the sole QA resource with no existing process to build on.
What I bring to a project:
🤖 TEST AUTOMATION
I design and build automation suites tailored to the platform: Synpress/Cypress for Web3 wallet flows (~300 automated tests), Appium/WebdriverIO for mobile, and Selenium/Protractor for traditional web apps. At one company, I helped grow a suite to ~2,000 automated test cases across 8-10 products and cut regression testing time by over 90%.
🛠️ QA PROCESS & LEADERSHIP
I've built QA operations from scratch multiple times: bug triage workflows, JIRA structures, release gates, and regression checklists. I've also led teams of up to 18 QA engineers and trained manual testers to write and maintain their own automated tests.
✅ FULL-STACK TESTING COVERAGE
Functional, regression, UAT, performance/load (JMeter), API testing (Postman/Newman), and post-production monitoring. I'm comfortable owning quality end-to-end, not just executing test cases.
📊 BUSINESS ANALYSIS
I've regularly doubled as a BA, writing acceptance criteria, Gherkin specs, and bridging the gap between stakeholders and engineering.
I work well as an independent, self-directed QA resource. I don't need heavy oversight to figure out what a product needs and build the right quality process around it. ISTQB-certified. Experienced working remotely with US and international clients.
Let's talk about what your product needs and how I can help you ship with confidence.
$75/hr
$10K+ earned
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Patrick G.
has worked
.
Welcome to DevPort Studio – Where Your Digital Vision Comes to Life!
I'm Patrick, strategist at DevPort Studio, a dynamic full-stack web design and development agency based in the heart of St. Louis, MO. We're not just local dev shop though; our digital footprint stretches across the US and around the globe, serving a diverse clientele from innovative marketing agencies to cutting-edge eCommerce brands and forward-thinking B2B enterprises.
At DevPort Studio, we don't just build websites and mobile apps – we craft digital experiences that captivate, convert, and conquer. Our secret? A potent blend of creativity, technical prowess, and an unwavering commitment to your success.
Dive into our tech arsenal:
🌟 WordPress Wizardry
- Custom development that pushes boundaries
- Mastery of HTML, CSS, Javascript, and PHP
- Theme and plugin sorcery
- Page Builder virtuosos (Elementor, Beaver, & Divi)
- SEO strategies that skyrocket your visibility
🛒 eCommerce Excellence
- Shopify stores that sell themselves
- WooCommerce wonders on WordPress
- Magento magic for robust online marketplaces
💻 Web Portals & SaaS Solutions
Frontend Flair:
- Vue.js, React, and Angular artistry
- React Native for cross-platform brilliance
Backend Backbone:
- Laravel, Node.js, and Python powerhouses
📱 Mobile Marvels
- iOS native development with Swift
- Android mastery using Kotlin/Java
- Hybrid harmony via React Native
Ready to transform your digital presence? Let's create something extraordinary together.
$80.99/hr
Available now
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Most AI features fail in the last mile, not the model. The demo works, then it meets a real app, a real API budget, and a real user on a bad network.
That last mile is what I do. I am a staff-level engineer with 10+ years shipping production software, and for the past few years my focus has been integrating AI into products that people actually use: inside mobile apps, behind APIs, and in the browser.
What I build for clients:
AI inside mobile apps (my sharpest niche). On-device and cloud inference in Android (Kotlin) and iOS (Swift). Gemini and Gemini Nano, Apple Foundation Models, ML Kit, hybrid routing between local and cloud so you are not paying API costs for every keystroke. Very few engineers work at this intersection, and it shows in the results.
AI in the backend. LLM integrations, RAG pipelines, vector search, tool calling and agent workflows, structured output with schema validation, streaming, caching, evaluation and cost control. Built to be observable, not magical.
AI in the frontend. Chat and copilot interfaces, streaming responses, graceful failure states, and the unglamorous UX work that decides whether people trust the feature.
Turning a proof of concept into something you can ship. Rate limits, retries, prompt injection defenses, PII handling, latency budgets, and a bill that does not surprise you in month three.
Background: I have led engineering teams, owned architecture decisions, shipped apps at scale on the App Store and Google Play, and delivered for large organisations where "it works on my machine" was never going to be enough. I write a weekly technical series on AI in mobile, which means I stay current on purpose rather than by accident.
How I work: I tell you what a thing actually costs before you commit to it. If a simple tool solves your problem better than an LLM, I will say so and save you the money. Clear communication, working code, no mystery.
Stack: Kotlin, Swift, Python, TypeScript, Node. OpenAI, Anthropic Claude, Google Gemini, open-weight models. LangChain, vector databases, RAG, function calling, MCP. Jetpack Compose, SwiftUI, React. AWS, GCP, Firebase, Docker, CI/CD.
Tell me what you are trying to build and what it needs to cost. I will tell you honestly whether I am the right person for it.
$65/hr
$0 earned
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I’m a senior full-stack engineer with 11+ years of experience, currently working on high-scale systems in financial services.
On Upwork, I focus on one thing: helping you fix problems fast.
Most of my work comes from jumping into existing codebases and fixing issues that other developers couldn’t resolve.
If your app is broken, slow, or stuck in deployment — I can usually identify the issue quickly and get things working without dragging it out for weeks.
What I typically help with:
• React bugs and UI issues
• AWS / backend debugging
• API failures and data flow problems
• Performance issues and slow apps
• Payments (Stripe) and integrations
• AI integrations (chat, automation, OpenAI APIs)
I’m used to working in production environments where things need to be fixed quickly and correctly.
I prefer quick, focused projects where I can deliver real value fast rather than dragging work out unnecessarily.
If you’re stuck on something, feel free to reach out — happy to take a look.
$64/hr
100%
Job Success
$60K+ earned
Offers consultations
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Looking for the development, scaling or maintenance for your project, you are at the right place.
My expertise spans:
• Websites, Web Applications (SaaS)
• Mobile Apps (IOS / Android / React Native)
• Desktop Applications
• Blockchain, Web3 Applications
Associated with
Calipso
$70K+
earned
$250/hr
$5 earned
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🚀 AI Expert | Software Architect | Ex-Airbnb Inc. | Visionary
I specialize in building next-generation AI-powered software solutions and development teams that drive innovation and transform businesses. With a solid background from my time at Airbnb and extensive experience in crafting scalable software architectures, I offer a full suite of services designed to meet the needs of both startups and large enterprises.
Here's What I Bring to the Table:
🔹 Full-Stack Software Development
- Web Development: Expert in building responsive and highly scalable web applications using modern frameworks.
- Mobile Development: Full-stack expertise in iOS and Android app development with a focus on seamless user experiences and cutting-edge functionality.
🤖 Artificial Intelligence & Machine Learning
- Generative AI & NLP: Unlock the power of language with AI models capable of generating creative content, insights, and automation.
- Computer Vision: Advanced systems for image recognition, facial detection, and visual data analysis.
- Reinforcement Learning & LLMs: Cutting-edge techniques to develop smart, self-improving AI solutions.
- Recommendation Engines: Creating intelligent recommendation systems that drive user engagement and conversions.
🏢 Enterprise Software Development & Cloud Solutions
- Enterprise Software: Designing robust and scalable enterprise solutions tailored to your business needs.
- Cloud Computing: Expertise in AWS, Google Cloud, and Azure to power your applications with reliability and speed.
📊 Data Science & Advanced Analytics
- Turning data into actionable insights with advanced analytics, machine learning models, and statistical methodologies to optimize business strategies.
🎨 UI/UX Design & Branding
- UI/UX Design: Crafting intuitive user experiences and sleek interfaces that enhance engagement.
- Brand Identity: Logo design and prototyping that align with your brand's vision and mission.
📈 Agile Project Management & SEO
- Scrum Mastery: Leading projects with agile methodologies to deliver on time and within scope.
- WordPress & SEO: Optimizing content for search engines to boost visibility and drive organic traffic.
🛠️ Industries I Serve:
- Oil & Gas
- Consumer Products
- E-commerce & Retail
- Healthcare & Pharmaceuticals
- Finance
- Entertainment
Why Work With Me?
- Ex-Airbnb Expertise: Leveraging my experience from one of the world's most innovative companies.
- Proven Track Record: Delivered AI and software solutions that consistently exceed expectations.
- Visionary Approach: Always thinking ahead to help businesses prepare for the future of technology.
Let's bring your vision to life! Whether you need a full-scale AI implementation, a sleek mobile app, or robust enterprise software, I’m here to help turn your ideas into reality.
💬 Ready to transform your project? Let's chat!
$60/hr
$20K+ earned
Available now
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[🔥TOP @ Upwork🔥] As a highly experienced software developer with over 20 years of experience, I have completed over 50 projects for notable clients such as the United Nations, Yelp, REMAX, Gilead, Chegg, and Mercari.
I am proficient in
- web front-end development using HTML/CSS/JS library and frameworks
- web back-end development using Node/PHP/Python
- mobile development using React Native/Firebase/XCode
- CI/CD, deployment to AWS, google clouding server
- project management using Trello, Jira, Git, and Gitlab
- unit testing, database management
I have a diverse background, having studied at UCLA in Los Angeles and working for companies in LA, San Francisco, and New York. I have founded startups and served as a director for a multi-million dollar company. Throughout my career, I have built a wide range of products for top companies and have consistently honed my coding skills.
Currently, I have recently purchased a condo on the beautiful island of Madeira in Portugal and am semi-retired. However, I miss working on exciting projects and am seeking new opportunities. My skillset includes proficiency in PHP (Laravel/CodeIgniter/Symfony) and JS (React/Angular/Vue/Express/Next) for over 10 years each, as well as experience with mobile development (iOS/Android/React Native/Flutter) for over 8 years. In addition, I am an experienced graphic designer and project manager.
If you are interested in discussing the possibility of working together, please send me a Calendly link or schedule a zoom call to discuss further.
Associated with
New York Digital Group
$200+
earned
$75/hr
$2K+ earned
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Published web, mobile, and desktop applications for companies and startups from different sectors (logistics, gaming, e-commerce, SAAS etc.) using technologies such as React, React Native, Electron.js, Next.js, and TypeScript.
✅Production Experience with React Native
✅Developed / Deployed a Mobile Application on the App Store and Play Store
✅Developed / Deployed a Desktop Application on macOS and Windows
✅Developed / Deployed Web Applications
✅Experience with Next.js
✅Experience with AWS Serverless, CodePipeline, Lambda Functions
✅Experience withTypeScript
✅Experience with Electron.js
✅Experience working with Figma
✅Experience with Responsive Design
✅Experience with a headless CMS like Strapi
✅Shopify App development experience
I have professional experience in every aspects of frontend development such as web development, mobile development, desktop app development, CSS, JavaScript, responsive design, API integrations, SSR, CSR, CI/CD, SEO, analytics, and crash reporting.
$60/hr
$0 earned
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I am a mobile app and web developer with more than fifteen years of experience in website and mobile applications development.
I can help you if you're looking to create or maintain a website or mobile app.