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Expert Oracle & MySQL Database Developer | Query Optimization & API Integrations With 24+ years of experience in database development, I specialize in Oracle (PL/SQL), MySQL, and SQL query optimization to improve performance, scalability, and efficiency. I have helped businesses reduce query execution times by 80%, migrate databases seamlessly, and integrate complex APIs for high-volume data processing. 🔹 Key Expertise: ✅ Oracle PL/SQL, MySQL, SQL Performance Tuning ✅ Database Design, Optimization, and Refactoring ✅ ETL, Data Migration, API & Automation Integrations ✅ Custom Reports & Dashboards (Looker Studio, BI Tools) ✅ Enterprise-level Systems for Finance, eCommerce, and SaaS My clients have described my work as "fast and precise," "expert-level tuning," and "seamless data integration." I am available for both short-term consulting and long-term database development projects. Let’s optimize your database performance today!

16+ years delivering scalable solutions across Oracle (certified), PostgreSQL, MySQL, SQL Server, MS Access, and more. Trusted by long-term clients for reliable, high-quality work. Expertise: • PL/SQL, tuning, optimisation, migrations (Oracle + multi-DB) • Advanced Sql queries, procedures and functions development • ETL/ELT pipelines, Python automation • Odoo customization, modules, APIs • Data analytics and processing • Data cleaning and converting to other forms like csv, sql , json etc • Make custom CRUD applications • Biometric sync (ZKTeco/BioTime → Odoo HR/Payroll) • Oracle Forms & Reports development/maintenance; PHPRunner rapid web apps; desktop DB (MS Access, LibreOffice Base) • Legacy Oracle: Install & configure Forms 6i on Windows 11 (unsupported workaround) Results: Zero-touch payroll for 500+ users; 70%+ faster queries. Available for short and long-term partnerships. Message me to discuss your project!

I'm very friendly, easy to talk to, and easy to work with. Whether you are technical or not, I talk in plain English with no jargon so that you know exactly what's going on and how things work. I don't just work FOR you, but WITH you. I can tackle any Ruby tasks that you need. I can write anything from small Ruby scripts to full-blown Web applications. My code is clean, readable, and regularly refactored. TESTING IS A HIGH PRIORITY IN MY WORK, NOT AN AFTERTHOUGHT. I WILL WORK FOR A LOWER RATE FOR GOOD CAUSES. Efficient and Easy for You For web applications, I use Heroku, a service that allows me to quickly give you a product in a working state so you can immediately interact with it. No work needed on your end. I just give you a web address, and you see results in seconds. Knowledgeable I regularly follow Ruby news and attend conferences, so you can be confident that I am keeping up with technology. Flexibility I can work any day of the week at any reasonable hour of the day. I've had clients across the globe and have had no problems making myself available at a time that is convenient for them. I respond to emails quickly and give plenty of warning if I will not be available. "Why should I hire you when I can hire multiple developers for the same price?" Developers that are cheaper are often less experienced and less skilled. They might spend hours on the wrong solution to a problem. That means they could spend more time trying to make it work and more time trying to fix it. But a good developer will make better decisions, produce higher quality code, and can get the job done better and faster. With a good developer, you may very well spend less time and money and get a better product. Why Testing Matters There is no such thing as bug-free code. If you were an online bank, how confident are you that every transaction is working like it is designed to? Can you afford to have a bug? With automated tests, you have code that verifies your application is working as expected. Most good programmers nowadays are thoroughly testing their code. It helps with development, and it helps when things go wrong like many things eventually do. Tests will also help you make sure that fixing a bug here won't cause another bug way over there. Not having automated tests makes development SEVERAL TIMES slower, costing more money and more headache. Frameworks, gems, tools, etc. that I use: Ruby on Rails Sinatra HAML/SASS JavaScript CoffeeScript jQuery Minitest RSpec Jasmine Capybara Nokogiri Faraday Sidekiq Pro Bundler RVM ch-ruby homebrew PostgreSQL ActiveRecord Heroku SOA

Hey, I'm Ahmad Javeed, I'm a software engineer with more than 5 years of experience, I specialize in database management, Microsoft Access database or Access database engineering and database administration. and also in UI & UX designing, Android development, Web development, Full Stack development, and software development, also Please contact me and let make a best software solution for your business.

I have 12+ years of professional experience working in enterprise web applications. Fluent with Database programming. Currently, I am working as Principal Database Engineer in a USA based company providing solutions for trade and risk management. My responsibility covers: 1. Modeling complex business requirements in database 2. Database design 3. Writing stored procedures, jobs, functions, Reports 4. ETL operation using SSIS/CLR 5. Mentoring junior developers 6. Database documentation 7. Database Unit test (Tsqlt) Skill: 1. Microsoft SQL Server 2. MySQL 3. Oracle 3. PHP 4. JavaScript 5. Excel VBA

🚀 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐀𝐒𝐏.𝐍𝐄𝐓 𝐂𝐨𝐫𝐞 | .𝐍𝐄𝐓 | 𝐒𝐐𝐋 𝐒𝐞𝐫𝐯𝐞𝐫 Hi, I’m 𝐌𝐮𝐡𝐚𝐦𝐦𝐚𝐝 𝐔𝐬𝐚𝐦𝐚 𝐘𝐨𝐮𝐬𝐚𝐟, a backend developer focused on building 𝐬𝐞𝐜𝐮𝐫𝐞, 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞, 𝐚𝐧𝐝 𝐡𝐢𝐠𝐡-𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐛𝐚𝐜𝐤𝐞𝐧𝐝 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 using 𝐀𝐒𝐏.𝐍𝐄𝐓 𝐂𝐨𝐫𝐞, 𝐂#, 𝐚𝐧𝐝 𝐌𝐢𝐜𝐫𝐨𝐬𝐨𝐟𝐭 𝐒𝐐𝐋 𝐒𝐞𝐫𝐯𝐞𝐫. I help businesses design and develop reliable backend solutions—whether that’s creating APIs from scratch, improving existing systems, or building architectures that stay clean and maintainable as applications grow. 💡 𝐖𝐡𝐚𝐭 𝐈 𝐃𝐨 • Build 𝐑𝐄𝐒𝐓𝐟𝐮𝐥 𝐀𝐏𝐈𝐬 with ASP.NET Core • Design 𝐜𝐥𝐞𝐚𝐧 𝐚𝐧𝐝 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐚𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞𝐬 (layered & clean architecture) • Implement 𝐚𝐮𝐭𝐡𝐞𝐧𝐭𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐚𝐧𝐝 𝐚𝐮𝐭𝐡𝐨𝐫𝐢𝐳𝐚𝐭𝐢𝐨𝐧 (JWT, ASP.NET Identity, RBAC) • Optimize 𝐒𝐐𝐋 𝐒𝐞𝐫𝐯𝐞𝐫 𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 using efficient queries and stored procedures • Integrate 𝐭𝐡𝐢𝐫𝐝-𝐩𝐚𝐫𝐭𝐲 𝐬𝐞𝐫𝐯𝐢𝐜𝐞𝐬 (payment gateways, Facebook webhooks, external APIs) • Develop 𝐛𝐚𝐜𝐤𝐠𝐫𝐨𝐮𝐧𝐝 𝐣𝐨𝐛𝐬 𝐚𝐧𝐝 𝐬𝐜𝐡𝐞𝐝𝐮𝐥𝐞𝐝 𝐭𝐚𝐬𝐤𝐬 for automation 🛠 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐒𝐤𝐢𝐥𝐥𝐬 • Backend & APIs • ASP.NET Core, .NET, C# • REST APIs, Webhooks, Background Services • JWT authentication & role-based access control 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 & 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 • Microsoft SQL Server, T-SQL • Stored procedures, indexing, query optimization • SQL Server Agent jobs, backup & recovery strategies 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞 & 𝐁𝐞𝐬𝐭 𝐏𝐫𝐚𝐜𝐭𝐢𝐜𝐞𝐬 • Clean Architecture & layered design • Object-Oriented Programming (OOP) 𝐄𝐯𝐞𝐧𝐭-𝐝𝐫𝐢𝐯𝐞𝐧 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 • Maintainable and testable codebases 𝐓𝐨𝐨𝐥𝐬 • Git, Visual Studio, SSMS, Postman ⚙️ 𝗛𝗼𝘄 𝗜 𝗪𝗼𝗿𝗸 I focus on understanding 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗿𝗲𝗾𝘂𝗶𝗿𝗲𝗺𝗲𝗻𝘁𝘀 first, then designing backend solutions that are: ✅ Secure ✅ Scalable ✅ Easy to maintain ✅ Built for long-term growth Whether you need a 𝗻𝗲𝘄 𝗯𝗮𝗰𝗸𝗲𝗻𝗱 𝘀𝘆𝘀𝘁𝗲𝗺, 𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝗶𝗺𝗽𝗿𝗼𝘃𝗲𝗺𝗲𝗻𝘁𝘀, or 𝗱𝗮𝘁𝗮𝗯𝗮𝘀𝗲 𝗼𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻, I bring a detail-oriented and professional approach to every project. 🤝 𝗪𝗵𝘆 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲? • Clear and transparent communication • Clean, well-structured code • Strong focus on performance and stability • Ownership and responsibility for backend systems If you’re looking for a backend developer who thinks beyond simply “making it work,” let’s connect and talk about your project. 📩 𝗠𝗲𝘀𝘀𝗮𝗴𝗲 𝗺𝗲 𝗮𝗻𝘆𝘁𝗶𝗺𝗲 𝘁𝗼 𝗴𝗲𝘁 𝘀𝘁𝗮𝗿𝘁𝗲𝗱. — 𝗠𝘂𝗵𝗮𝗺𝗺𝗮𝗱 𝗨𝘀𝗮𝗺𝗮 𝗬𝗼𝘂𝘀𝗮𝗳 Backend Developer | ASP.NET Core | SQL Server