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Freelance Oracle Database Developer - Qaiser Mehmood
Freelance Oracle Database 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 Database Developer - Cliffosa Okoro
Freelance Oracle Database 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 Database Developer - Anup Mistry
Freelance Oracle Database 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 Database Developer - Asma Hashmi
Freelance Oracle Database 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.

Relational DatabaseOracle PL/SQLDatabase AdministrationOracle 11gPHPMySQLWeb DevelopmentJavaScriptMySQL Optimization
Freelance Oracle Database Developer - Vivek Sachdeva
Freelance Oracle Database Developer5.0 (17 reviews)

Hi, I have over a decade of experience in full-stack programming. I have hands-on experience with Java, Spring, Hibernate, Node.js, React, ElasticSearch, MySql, Postgres, Oracle, MongoDb, and numerous AWS technologies ranging from networking to serverless. I also believe in infrastructure as code and have provisioned and deployed infrastructure using Cloudformation and AWS CDK. I subscribe to the agile methodology and believe in outcome more than activity.

Freelance Oracle Database Developer - Nihat KIZILTOPRAK
Freelance Oracle Database Developer

Senior Java Developer with over 17 years of experience building scalable enterprise applications, with strong focus on backend systems, REST APIs, and distributed architecture. Hands-on expertise in Java (up to 21), Sprng , Spring Boot, React ,Angular , TypeScript ,Oracle DB,PostgreSQL, and microservices. Proven track record in insurance and finance tech domains. Comfortable working in agile environments, and highly skilled in transforming business requirements into technical solutions.

Freelance Oracle Database Developer - syed saqib ghawas
Freelance Oracle Database 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 Database Developer - Adetokunbo Ige
Freelance Oracle Database Developer5.0 (10 reviews)

Hi, I'm Adetokunbo Temitayo Ige, a DevOps Engineer with experience in Platform Engineering, SRE, Database Administration, and Technical Writing. I hold a B.Sc in Computer Science from Babcock University and an M.Sc in Business Information Technology from Middlesex University. I have experience working with the following technologies * AWS * Docker, Kubernetes * Terraform (IAC), Pulumi * Azure * CI/CD ( GitHub Actions, Gitlab CI, Jenkins) * Python and Bash * Linux * GCP Blog: https://igeadetokunbo.medium.com/

Freelance Oracle Database Developer - Mohammed Tajuddin
Freelance Oracle Database Developer5.0 (4 reviews)

I am a Microsoft Certified Azure Developer Associate (AZ-204), Microsoft Certified: DevOps Engineer Expert (AZ-400), and Azure Administrator (AZ104). I have been working in the IT industry since 2004. I am highly experienced in ASP.NET Core, C#, Oracle Database, PL/SQL, APEX, Angular, Oracle Database, Web API, Oracle Cloud, and SQL Databases. Currently working as an integration and full-stack developer. I have extensive experience in Azure DevOps, Azure Logic App, Function App, APIM, and Data Factory.

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Frequently asked questions

How long do Oracle Database 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 Database 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 Database request on Codementor, check out our article.

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

We don’t charge anything when you post a freelance hiring request for Oracle Database 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 Database developers different?

We do a comprehensive technical and communications screen of all Oracle Database 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 Database 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 Database 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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