You will get Oracle Developer, Oracle PLSQL, Database Developer, Database Development

Denys P.Status: Offline
Denys P. Denys P.
4.9

Let a pro handle the details

Buy Database Queries services from Denys, priced and ready to go.
Denys P.Status: Offline
Denys P. Denys P.
4.9

Let a pro handle the details

Buy Database Queries services from Denys, priced and ready to go.

Project details

Is your Oracle database underperforming?
Need help with complex SQL queries, PL/SQL procedures, or schema design?
Struggling with slow SQL queries or complex PL/SQL logic?

I’ll help you design, write, and optimize high-performance Oracle SQL & PL/SQL code tailored to your business needs.

Whether you need stored procedures, schema design, or query tuning, I bring 10+ years of experience working with Oracle databases in enterprise environments. I focus on clean, efficient, and well-documented code that’s ready for production.

What sets this project apart?
You’re not just getting code - you’re getting a strategic partner who understands data, performance, and real-world Oracle systems from the inside out.
Database Type
MySQL, MS SQL, Oracle, SQLite, PostgreSQL
What's included
Service Tiers Starter
$149
Standard
$249
Advanced
$599
Delivery Time 3 days 5 days 7 days
Number of Revisions
235
Number of Queries
234
Query Debugging
Query Optimization
Query Scheduling
Query Analysis
Source Code
Optional add-ons You can add these on the next page.
Additional Revision
+$50
4.9
11 reviews
91% Complete
9% Complete
1% Complete
(0)
1% Complete
(0)
1% Complete
(0)

JK

Jason K.
4.85
Apr 1, 2025
Full Stack Development needed for Hybrid Approach Denys and his Dev Team were very skilled and he was able to provide our project with the respective Dev required (Full stack, Front end, Back end) when we needed it. I would definitely hire Denys and his team again.

RS

Robert S.
5.00
Sep 10, 2023
Senior UI Developer for Fintech SaaS

RS

Robert S.
5.00
Mar 27, 2023
Senior Angular Developer for SaaS Solid developers

TJ

Toasha J.
5.00
Aug 2, 2021
Interactive Broker - API Integration

AB

Ashok B.
5.00
Jun 16, 2020
Oracle DBA familiar with EUS
Denys P.Status: Offline

About Denys

Denys P.Status: Offline
Full Stack Development | Oracle Developer | Web Development | PM
100% Job Success
4.9  (11 reviews)
Zaporizhzhya, Ukraine - 6:09 pm local time
⚡️ Full Stack Development
⚡️ Desktop Software Development

💻 Back-End Development

📜 .NET and C#:
🔹 ASP.NET Core
🔹 Entity Framework Core
🔹 FluentValidation
🔹 MediatR
🔹 Automapper
🔹 FastExpressions
🔹 Serilog
🔹 SignalR
🔹 Identity Framework Core
🔹 BenchmarkDotNet
🔹 xUnit, nUnit, FluentAssertions, NSubstitude, Bogus
🔹 Polly
🔹 Azure DevOps
🔹 Azure services (Virtual Machines, App Services, AKS, Azure SQL, Azure AD, Storage, Networking)
🔹 CI/CD tools and practices (Azure DevOps, GitHub Actions)
🔹 Networking concepts (VNet, NSG, VPN, ExpressRoute)
🔹 Scripting and automation (PowerShell, Azure CLI, Python)

📜 Databases:
🔹 MS SQL
🔹 MySQL
🔹 Postgres
🔹 MongoDB
🔹 Oracle

📜 Architecture:
🔹 DDD
🔹 Event Driven Design
🔹 Clear Architecture

💻 Front-End Development

🚀 Expertise in:

📱 React & React Native (Expo): Building dynamic web and mobile applications
🌐 Modern Frontend Frameworks: Proficient in React, Angular 2+, Vue.js, and Next.js for responsive, scalable web development
🔧 Backend Knowledge: Familiar with PHP (Laravel, Slim, Lumen) and Node.js for basic backend integration
🛒 CMS & E-Commerce: Expertise in WordPress, WooCommerce, Plentymarkets, Magento theme/plugin development, and custom integrations
✨ Clean, Efficient Code: Passionate about writing maintainable and scalable solutions for a smooth user experience
🔗 API Integration: Skilled in SOAP/RESTful API development and integration for seamless client connectivity

💪🏻 The following stack that successfully used:
🔹 SCSS
🔹 CSS
🔹 HTML
🔹 TypeScript
🔹 RXJS
🔹 NGRX
🔹 NextJS
🔹 ReactJS
🔹 REDUX
🔹 SAGA
🔹 Promises
🔹 Server Side Rendering based on NextJS
🔹 NestJS
🔹 MySQL
🔹 ExpressJS
🔹 Plentymarkets

⚡️ PM:
🔹 20+ years of system analysis, application development and programming experience
🔹 Oracle | PL/SQL development, and Project Management experience
🔹 Leading team up to 10 persons
🔹 Ability to meet deadlines
🔹 Strong problem-solving and communication skills
🔹 Strong experience in contact with exacting project stakeholders
🔹 Experience in project estimation, timely realization control, requirements definition, design, architecture, testing and support
🔹 Clear understanding of all stages in software development
🔹 Strong leadership abilities, good communication skills
🔹 Well skilled in Oracle development
🔹 Understanding of people management
🔹 Technology evaluation and business requirements analysis skills

🧠 AI:
🔹 Machine Learning
🔹 Large Language Models (LLM)
🔹 Prompt Engineering
🔹 LangChain
🔹 OpenAI
🔹 Anthropic
🔹 Google GenAI
🔹 FAISS
🔹 Retrieval Augmented Generation (RAG)

⚡️ Database Administration
⚡️ Database Development
⚡️ Solution Architecture

𝙎𝙚𝙖𝙧𝙘𝙝 𝙛𝙤𝙧 𝙢𝙚 𝙪𝙨𝙞𝙣𝙜 𝙩𝙝𝙚𝙨𝙚 𝙠𝙚𝙮𝙬𝙤𝙧𝙙𝙨:
C#, ASP.NET Core, .NET Framework, Entity Framework, SQL Server, PostgreSQL, MySQL, REST APIs, JSON, XML, GraphQL, Razor, Blazor, Php, Python, Angular, React, Vue.js, JavaScript, TypeScript, HTML5, CSS3, SCSS, Bootstrap, Tailwind, Azure (App Services, Functions, DevOps, Blob Storage), AWS, Docker, Kubernetes, Microservices, CI/CD, Git, GitHub, GitLab, TDD, xUnit, NUnit, Dapper, Swagger, OAuth, JWT, WebSockets, RabbitMQ, Redis, SignalR, Sitecore, Umbraco, Kentico, DNN, Orchard Core, Contentful, Strapi, ADO.NET, ASP.NET MVC, AngularJS, AJAX, Adobe Photoshop, ASP.NET Web API, Google Analytics, Google Chrome Extension, Ecommerce Website, Browser Extension, Web Application, Website Redesign, API, API Integration, Desktop Application, Website Optimization, Software Debugging, Web Development, Database Development, AI Agent Development, WildFly, Apache HTTP Server, Eclipse Jetty, Microsoft IIS, IBM WebSphere, SQLite, Mimer SQL, Azure Cosmos DB, MongoDB, EC2, ECS, Lambda, S3, RDS, CloudFormation, AWS Backup, IAM, CloudFront, CloudWatch, Laravel, Larvel, Larval, Lavarel, Plentymarkets, iOS, Android, Oracle, PLSQL, PL/SQL, plsql, Anuglar, Angural, Agnural, Angurla, Reatc

Steps for completing your project

After purchasing the project, send requirements so Denys can start the project.

Delivery time starts when Denys receives requirements from you.

Denys works on your project following the steps below.

Revisions may occur after the delivery date.

Purchase & Requirements Submission

Once you purchase the project, you'll send over your requirements—this includes a brief description, schema details, sample data (if available), and any specific goals or problem areas.

Project Understanding & Scope Confirmation

I’ll review all materials thoroughly, ask clarifying questions if needed, and confirm the scope, timeline, and deliverables with you before starting development.

Review the work, release payment, and leave feedback to Denys.