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Freelance Oracle SQL Developer - Qaiser Mehmood
Freelance Oracle SQL Developer5.0 (7 reviews)

I don't just write code — I **define the architecture**. For over two decades I've been the person CTOs and lead developers call when a system is *failing under load*, a migration is at risk, or an AI integration needs to be done **right the first time**. With **21 years** of hands-on architecture experience, I specialize in **C#, .NET, Blazor, ASP.NET Core, SQL, Python**, and AI agents built with **Semantic Kernel, LangGraph, and custom tool-calling pipelines**. I design and deliver systems where performance, reliability, and intelligent automation aren't optional — they're the baseline. I've helped teams migrate from legacy .NET Framework to .NET 8, integrate AI into production pipelines, and recover systems failing under scale — without full rewrites. I've shipped AI to **production** — not to a Jupyter notebook. I'm the creator of **FreeAIVoice** ([freeaivoice.com](https://freeaivoice.com)) — a live AI voice platform with AI Voice Generation, Voice Cloning, and Speech-to-Text across **30+ languages** and a developer API. I know what it takes to build AI products that handle real users, real traffic, and real failure modes. --- **Here's where I'm most useful to you:** - **The AI Integration Trap** — You've been asked to add AI to your existing .NET system but don't know whether to use *Semantic Kernel*, raw OpenAI APIs, or a Python sidecar. I've made that decision dozens of times. I'll make it faster and safer for you. - **The Blazor Bottleneck** — Your Blazor app is slow, state management is tangled, and you're unsure if you chose *Server or WASM* incorrectly. I can diagnose what went wrong and map a clean path forward — often in a single session. - **The Legacy Modernization Cliff** — You have a 10-year-old .NET system that needs AI or modern tooling but wasn't designed for it. I specialize in *incremental refactoring paths* that don't require a full rewrite and don't break what's already working. --- **What I Do Best:** - **Software Architecture & System Design** — scalable, maintainable systems from greenfield to enterprise - **AI Agent Development** — production-grade agents with Semantic Kernel, LangGraph & AutoGen — *not demos* - **Blazor & ASP.NET Core** — Server, WASM, hybrid — full-cycle development and performance tuning - **Python & AI Automation** — RAG pipelines, workflow automation, voice AI, LLM integrations - **Legacy .NET Modernization** — refactoring strategy, migration paths, incremental upgrades - **Architecture Audits & Code Reviews** — identifying structural risks before they become production incidents - **Debugging Complex Systems** — when the stack trace doesn't tell the whole story

Freelance Oracle SQL Developer - Cliffosa Okoro
Freelance Oracle SQL Developer4.9 (120 reviews)

As a software developer with 8 years of experience, I am captivated by programming paradigms and the best practices for designing and implementing software architectures. **I'm happy to offer a 10-minute free session to look at your current work if any exist. This will help us see if I can solve your problem before you pay for a session. This way, I'll better understand what you need and can help you more effectively.** Let's collaborate to create impactful solutions.

Freelance Oracle SQL Developer - Mian Yasir Iqbal
Freelance Oracle SQL Developer5.0 (96 reviews)

As an expert Software Engineer, I specialize in creating efficient and robust solutions. My expertise extends to advanced web scraping, including handling JavaScript-heavy websites while avoiding reCAPTCHA and IP blocking. With a focus on delivering data in formats like CSV, Excel, and Word, I also offer data cleanup services and database management using MySQL, PostgreSQL, and MongoDB. I take pride in building responsive websites, ensuring they are fluid across all screen sizes. With flexible working hours, I am dedicated to meeting the needs of my clients and ensuring their satisfaction.

Freelance Oracle SQL Developer - Anup Mistry
Freelance Oracle SQL Developer5.0 (57 reviews)

**Microsoft Certified Power BI, Python, and SQL professional with 10+ years of experience delivering high impact analytics solutions. Skilled in data visualization, dashboard design, and technical problem solving to drive actionable, data-driven insights for businesses.** **Technical Proficiencies:** * **Visualization Tools**: Power BI (Microsoft Certified PL-300) * **Database Languages:** Google BigQuery, MySQL, PostgreSQL, T-SQL * **Object Orientated Programming:** Python (pandas, polars, sqlalchemy), VBA * **Cloud Platforms:** AWS, Azure, dbt, Microsoft Fabric, Power BI Service * **Other:** DAX, Excel, Power Automate, Power Query **Data Analysis Skills:** * Automation * API integration * ETL * Dashboard UX Design * Data modelling and architecture * Data storytelling * KPI Development **For prospective mentees / freelance clients:** _Transparent project quotations and plans - Regular project status updates - Will work to tight timelines - Discounts available for longer term projects_ * I also specialise in building trading algorithms and back-testing models, in MQL4, MQL5, MT4, MT5, Interactive Brokers API. * For freelance jobs and long term mentoring, intro calls are free (allowing you to assess the suitability of a partnership). Discounts are offered for longer term agreements of 1 week or more.

Freelance Oracle SQL Developer - Asma Hashmi
Freelance Oracle SQL Developer5.0 (1 reviews)

My recent freelance work has involved Development and programming (Web Development, Oracle Form Builder, Oracle Report Builder, PLSQL, Enterprise Services, Open Sources). I worked on various website using a MySQL and Oracle database, I love to work with both, they are good for different purposes. I've built several APIs so other website/application may interact with it. I know about responsive design, I like when the website I design can be easily scaled down to iPad or iPhone size since more and more user uses mobile devices nowadays! • Wordpress, Magento, Joomla • Codeignitor, YII, Zend • - ActionScript, Javascript, PHP, AJAX, jQuery • Bootstrap, jQuery, Prototype I understand how working with freelancers can be frustrating mainly because they can be unreachable and you just don't know if they are a good fit. just completed the badge of Generative AI for Healthcare from Google :) https://www.cloudskillsboost.google/course_templates/1081/badge I'm available 24/7 by phone/skype/email, you won't have any problems getting in touch with me.

Freelance Oracle SQL Developer - Ezequiel Mansilla
Freelance Oracle SQL Developer

Accomplished innovative System Engineer with more than 10-years-experience working with multidisciplinary teams and technologies building enterprise solutions for private sectors. Provide expertise and services at all levels of execution, assuming high levels of responsibility for their delivery. Have performed the roles of Software Developer and Front End Technical Lead for numerous projects requiring the execution of all aspects of design and development of new value added to software solutions. Most of the projects were related to health care. Really proactive and learning spirit. I like working in groups because of the synergy in them. Skills and knowledge essential for solving problems and improvements.

Freelance Oracle SQL Developer - syed saqib ghawas
Freelance Oracle SQL Developer4.9 (317 reviews)

Hello I have been working in the market for the past 10 years. in the field of Database, SQL, Oracle, SQL Server, MySQL, NOSQL,DWH,ETL ,reporting and BI tools. Have knowledge of multiples domain areas such as Finance & banking ,Telecom, health care, Tax & Legal and FMCG

Freelance Oracle SQL Developer - Ali Ashraf
Freelance Oracle SQL Developer5.0 (16 reviews)

I am a full stack developer having 15+ years of experience and have good problem solving and debugging skills. I mainly work in .NET, PHP, Python and JavaScript.

Freelance Oracle SQL Developer - Bijal Soni
Freelance Oracle SQL Developer5.0 (6 reviews)

Hello there! Thank you for visiting my profile. My name is Bijal, and I am a **PMP-certified Technical Project Manager** with *over 17 years* of extensive experience in .Net technologies. I specialize in a wide range of .Net frameworks and have also worked with Angular, React, and JavaScript. In addition to leading projects, I mentor my team throughout different phases of development. I have successfully built and led various software solutions across web, e-commerce, mobile, and cloud platforms. My expertise also extends to **AI development**, where I focus on integrating intelligent solutions into our projects. I have domain knowledge in industries such as **Insurtech, Fintech, Real Estate, and Medtech**, allowing me to bring a well-rounded perspective to every project. Feel free to reach out if you have any questions about your code, development architecture, or the integration of AI into your solutions. Happy coding!

Freelance Oracle SQL Developer - Calvince Otieno
Freelance Oracle SQL Developer5.0 (1 reviews)

Software Developer with over 6 years of experience specializing in back-end engineering. Proven ability to design and build resilient, scalable micro-services using Java, Spring Framework, and cloud-native technologies. Consistently delivers high-performance software that enhances user experience and drives operational efficiency. Open to new challenges in Software Engineering roles.

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Frequently asked questions

How long do Oracle SQL projects normally take?

The length of a project depends on many factors, including the scope of your project and the technical complexity of it. When you post a freelance Oracle SQL project request on Codementor, you’ll have the option to indicate when you’d expect the project to be completed. We suggest chatting with the interested developers to ensure both sides are on the same page. For more information on how to post a freelance Oracle SQL request on Codementor, check out our article.

How much does it cost to hire a freelance Oracle SQL developer?

We don’t charge anything when you post a freelance hiring request for Oracle SQL developers! You’ll have the chance to determine what the budget for your project is when you post the request. You’ll only need to pay the developer if you’re 100% satisfied with their work. Please know that Codementor charges a small service fee when a developer completes the job.

What makes Codementor Oracle SQL developers different?

We do a comprehensive technical and communications screen of all Oracle SQL developers at Codementor. Our network includes book authors, popular open source contributors, top Stack Overflow users and engineers at top tech companies. In addition, to continually ensure the quality of our freelancers, we regularly check in on existing Oracle SQL developers’ user satisfaction rates.

What happens if I’m not happy with the freelancer’s work?

As a platform, we strive to ensure you’re always happy with your Oracle SQL project’s results. If you’re unsatisfied with the results, you can choose to get a refund for the project. Additionally, you can contact our support team should you need any further assistance with your project.

For more answers to frequently asked questions, see here.

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