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Oracle is a leading provider of database software and technology, renowned for its robust and scalable Oracle Database system used by enterprises worldwide. Oracle's suite includes powerful tools for data management, cloud services, application development, and enterprise resource planning (ERP) solutions. Oracle Developers specialize in using Oracle technologies like PL/SQL, Oracle Forms, and Oracle Reports to build, optimize, and maintain complex database systems essential for businesses looking to manage large volumes of data efficiently.
Ready to enhance your business with expert Oracle solutions? The best way to find a quality Oracle Developer is on Freelancer. With the widest range of skilled Oracle Developers for hire, Freelancer allows you to connect with professionals who can tailor solutions to your specific needs and budget. Freelancer's Milestone Payment system ensures you only pay when you're 100% satisfied, making it the safest way to hire an Oracle Developer.

7.9
7.9
100%

Villa De Merlo, Argentina
$25 USD per hour
I started with BeOS in 2002, because of a friend, who showed me something other than Windows, Always I worked repair PC & Laptops. Now I have more 10 years of experience in Server Linux. I can manager servers dedicated, servesr VPS, servers shared, etc. Setup and management you server; Apache/Nginx/Tomcat. SMTP Postfix, POP/IMAP Dovecot. FTP Vsftpd, Proftpd, Pure-ftpd-mysql. Dns Bind9, dnsmasq. File Server & printer Samba (dc-ac). Network administrator: isc-server-dhcp, openvpn, etc. Install and renew SSL certicate. All services on cloud; AWS, Azure, etc. Also website and E-mail migrations. ALL panels and web managers. Management all Linux distributions. Setup, security and optimization your server. __________________________ VERY IMPORTANT!!! “Hi I'm Matias, someone is trying to impersonate me, this account is the only one active and verified by freelancer! I DON'T USE ANY OTHER MEANS OF CONTACT, ONLY FREELANCER CHAT!” -----------------------------------------

8.0
8.0
99%

Nairobi, Kenya
$5 USD per hour
Master’s degree holder with over 10 years of experience in academic research writing, data analysis, and statistical modeling. I specialize in producing well-structured, evidence-based academic work for undergraduate, postgraduate, and doctoral-level clients. My work is grounded in peer-reviewed literature, sound research methodologies, and strict adherence to academic integrity standards. I have successfully completed research projects involving: ✔️Quantitative, qualitative, and mixed-methods studies ✔️Hypothesis testing, regression analysis, ANOVA, time-series analysis, and panel data ✔️Survey design, instrument validation, and data interpretation ✔️Systematic literature reviews and meta-analytical support ✔️Research proposals, theses, and dissertations ✔️Journal articles (APA, Harvard, MLA, IEEE) ✔️Data analysis using SPSS, R, Python, SAS, Excel, and Power BI Academic Coursework & Learning Support: ✔️ Weekly assignments and continuous assessment tasks ✔️ Discussion posts and academic reflections ✔️ Quizzes, tests, and timed assessments ✔️ Lab-based coursework and platform-guided assignments ✔️ Pearson, uCertify, McGraw-Hill Connect, WileyPLUS, MindTap, ALEKS, Blackboard, Moodle tasks ✔️ Data-driven lab reports and technical coursework Software Analysis, Design & Implementation (Academic & Project-Based): ✔️ Software Requirements Specification (SRS) ✔️ Business Requirements Document (BRD) ✔️ Functional & Non-Functional Requirements Analysis ✔️ System Analysis & Design (Use Case, Class, Sequence, Activity Diagrams) ✔️ Database Design (ERD, EERD, normalization up to 3NF/BCNF) ✔️ SQL Development & Database Implementation ✔️ Oracle, MySQL, PostgreSQL, MSSQL, MongoDB ✔️ Documentation aligned with IEEE & academic standards What sets me apart: ✔️ Original, plagiarism-free academic writing ✔️ Manual paraphrasing — no AI humanizing tools ✔️ Clear academic tone and logical argumentation ✔️ Unlimited revisions until expectations are met

7.5
7.5
100%

Basti, India
$40 USD per hour
Certified Server & Cloud Architect with 15+ years of strong hands-on experience in designing, managing and optimizing IT infrastructure across multi-cloud environments. Expert in AWS, Oracle Cloud (OCI), Azure, Google Cloud, DigitalOcean along with Linux, UNIX, Windows, VMware and OpenStack. Strong experience in Oracle Apps, databases and enterprise IT services. Certified AWS Cloud Architect Professional and Generative AI certified for AWS and Oracle Cloud (OCI), with hands-on experience in AI model deployment, cloud-based AI infrastructure, automation using AI tools and integrating AI services with cloud platforms. Strong experience in application development and production-ready deployments including eCommerce platforms (Magento, WooCommerce, Shopify etc), WordPress, PHP-based applications and custom web solutions. Specialized in end-to-end setup from development to production, including CI/CD pipelines, scaling, security hardening and high availability architecture. Expert in Cloudflare setup, CDN configuration, WAF implementation, firewall security and protection against DDoS and web attacks. Strong experience in production-grade email server setup and deliverability including DKIM, DMARC, SPF, RBL, spam filtering and secure mail flow configuration. Expert in cloud architecture, setup, configuration and high-level infrastructure design for scalable and secure environments. Strong expertise in IT cost optimization, improving performance, reducing cloud billing and ensuring best utilization of resources. Expert in troubleshooting live production issues, server failures and cloud problems with proper RCA and quick resolution. Extensive experience in migrations including servers (Linux/Unix/Windows), websites, applications, databases (Oracle, MySQL, PostgreSQL, MongoDB) and mail systems like Zimbra, Exchange, Office 365, cPanel, Plesk and more. Experienced in network security, firewall setup, vulnerability assessment and securing infrastructure against cyber threats. Hands-on experience with DevOps tools like Jenkins, Terraform, Ansible, Prometheus and Grafana for automation and monitoring. Strong experience with hosting panels like cPanel/WHM, Plesk, DirectAdmin, ISPConfig, Webmin, Virtualmin and others. Worked on monitoring and management tools like Nagios, Cacti, Zenoss and other enterprise solutions. Certified RHCE, RHCSA, RHCVA, OpenStack, Oracle Cloud (OCI) Professional and Mirantis Cloud certified. Expert in Active Directory, Microsoft Exchange and Windows server environment setup, migration and management. I believe in delivering reliable, scalable and production-ready solutions with strong security and proactive support. AS AN ENGINEER, I BELIEVE NOTHING IS IMPOSSIBLE TO IMPLEMENT. In addition to this, I look forward to working on your projects in your budget.

10.0
10.0
98%

Puttalam, Sri Lanka
$20 USD per hour
If you are seeking a strategic technology partner who delivers modern, scalable, and intelligent digital solutions, you are in the right place. We are a forward-thinking team specializing in Software Engineering, Web & Mobile Development, AI Solutions, and Intelligent Automation. Our approach is focused on building future-ready systems that combine clean architecture, performance, and business impact. Our technical expertise spans PHP, Node.js, Angular, Flutter, React, React Native, C#, VB.NET, and leading platforms such as WordPress, WooCommerce, Magento, and PrestaShop, supported by enterprise-grade databases including MySQL, PostgreSQL, Oracle, and SQL Server. Beyond development, we help businesses scale through AI-driven innovation and automation, including: - AI chatbots, voice agents, and virtual assistants - Workflow and process automation using Make (Integromat), n8n, and custom solutions - AI-powered data processing, content generation, and decision support - CRM, marketing, and operations automation to reduce costs and increase efficiency We have strong expertise in API-based integrations and ecosystem automation, connecting platforms such as Amazon, eBay, Shopify, Walmart, Lazada, Wish, and logistics providers including USPS, UPS, FedEx, and DHL, enabling seamless commerce and fulfillment workflows. Our focus is not just on delivery, but on measurable outcomes, speed, reliability, scalability, and long-term value. We thrive on complex challenges and continuously adopt the latest AI and automation trends to keep our clients ahead of the curve. Review our portfolio below and let our work demonstrate the standard we uphold. We are committed to delivering solutions that are intelligent, efficient, and built for growth.

9.2
9.2
100%

BANGKOK, Thailand
$130 USD per hour
Hi, I’m Marjan, Website & Software Developer with 16 years of experience and 4,400+ successful projects delivered worldwide. I help businesses build fast, secure, professional and conversion-focused websites, eCommerce stores, custom web applications, booking systems, dashboards and scalable digital platforms. My expertise includes: • WordPress, Elementor & Custom Theme/Plugin Development • Shopify Store Design, Setup & Customization • Full-Stack Web Development • SaaS, MVP & Custom Web Application Development • Booking Funnels, Lead Generation Forms & Dashboards • PHP, JavaScript, HTML, CSS & API Integrations • Wix, Webflow & Business Website Development • Technical SEO, Speed Optimization & Website Maintenance What you can expect when working with me: • Clear and professional communication • Clean, maintainable and scalable work • Careful attention to detail • On-time delivery and long-term support Whether you need a business website, Shopify store, WordPress development, custom platform, SaaS MVP, booking funnel or ongoing website support, I can help you plan, build and launch it properly. Let’s discuss your project and create something that works for your business.

10.0
10.0
97%

Surat, India
$15 USD per hour
⭐ Top 1% on Freelancer.com | Narola Infotech - Digitalising Businesses Since 2005 ✎ About Us We are Narola Infotech, a globally recognized IT solutions company with 20+ years of experience delivering high-performance web, mobile, and enterprise software solutions to 1500+ happy clients across 50+ countries. Trusted by Fortune companies like CGI, L&T, Infosys, Biocon, and TVSNext. We don't just build software, we build lasting partnerships. Our approach is simple: understand your vision, deliver beyond expectations, and stay with you every step of the way. ✎ Why Choose Us? ➬ 20+ Years of Industry Experience ➬ 350+ Talented IT Professionals ➬ 3000+ Successfully Delivered Projects ➬ 95% Client Retention Ratio ➬ 4.9 ⭐ Clutch Rating ➬ 100% Project Success Ratio ➬ Clutch Top 1000 Companies Global 2022 ➬ Best Outsourcing Company - SGCCI ✎ Our Services ➬ Custom Web & Mobile App Development ➬ Custom Enterprise Software Development ➬ AI/ML & Data Analytics Solutions ➬ QA & Software Testing (Automation, Security, Performance) ➬ DevOps, Cloud Migration & Managed Services ➬ Salesforce Consulting, Implementation & Support ➬ Staff Augmentation - Dedicated Teams or Individual Developers ➬ Support & Maintenance ✎ Tech Stack ➬ Frontend: ReactJS, AngularJS, VueJS, NextJS, NuxtJS ➬ Backend: Node.js, Java, PHP, Laravel, .NET, Python, Django, WordPress ➬ Mobile: Flutter, React Native, iOS (Swift), Android (Java/Kotlin) ➬ Cloud & DevOps: AWS, Azure, Docker, Kubernetes, Jenkins, CI/CD, Terraform ➬ Database: MySQL, MongoDB, PostgreSQL, Firebase, MS-SQL ➬ Other: Salesforce, MS Dynamics 365, Power Platform, Big Data, AI/ML, Automation ✎ Industries We Serve ● Fintech ● Healthcare ● Retail & Ecommerce ● Education ● Real Estate ● Media & Entertainment ●Transport & Logistics ✎ Our Strengths ➬ Agile Development Methodology ➬ Daily & Weekly Progress Reports ➬ Clear Communication & Collaboration ➬ 100% Plagiarism-Free & Secure Delivery ➬ Guaranteed Data Privacy & NDA Protection ➬ Flexible Engagement Models: ● Fixed Cost ● Time & Material (Hourly) ● Dedicated Team ● Hybrid Model (Fixed + Hourly) ✎ Our Promise "You will get the value of every penny you spend. We are committed to driving your business forward with reliable, quality solutions powered by technology and innovation." - Ashish Narola, CEO

8.2
8.2
99%

Baguio City, Philippines
$30 USD per hour
We're a community driven by a passion for computing technology. Our group consists of fellow enthusiasts, architects, engineers, hackers, and analysts, all for advancing information technology and computer science. Our goal is to contribute to knowledge through research, experiments, and practical experiences. We leverage this knowledge to develop innovative solutions for the digital world. We are expanding our services to reach more people. For more information and inquiries, send us a message, and let's discuss it over a cup of coffee.

9.1
9.1
98%

Rawalpindi, Pakistan
$30 USD per hour
A Firm providing comprehensive range of Accounting, Taxation, Financial Consultancy and IT enable services through its experienced and qualified team members comprising of Chartered Accountants, CPAs and Bookkeeping Specialists. 1. Accounting/Bookkeeping (QBO, Oracle ERP, NetSuite, Xero, MS Dynamics Business Central) 2. Company setup in accounting software 3. Audit and Financial Modelling 4. MS Excel Analysis 5. Business Analysis/Valuations 6. Bank Reconciliations 7. Cash flow analysis 8. Preparation of financial statements 9. Budgeting and Forecasting 10. Accounts Payable/Receivables Management Apart from these we have specialized team working in the following areas: 1. Data Entry 2. Web Scraping and Research 3. Data Conversion (PDF to Excel, JPEG, XML etc) 4. Content Writing, Ghostwriting, Articles, Technical Writing 5. Virtual Assistant 6. Oracle Implementation (SQL, JAVA, Patching, Database Admin etc)

7.8
7.8
98%

48 NAOGAON, Bangladesh
$30 USD per hour
Welcome to my profile. Are you looking for a senior developer to bring your great idea alive? If your answer is yes, you have visited the right profile. I am a senior developer/architect for more than 6 years of working experience . I have implemented more than 1000+ projects including Social media marketing so far and I am proficient in following technologies, I have a Team, those who are better/best in their fields. I don't dare to tell we are the best rather to the best of our ability we try to give my/our best. Me And Our team Support you Graphic Designer, Website,apps, SEO , Disital Marketing. Full Stack Developer - ASP.Net Inventory Software (offline) - WordPress custom development. Theme customization. PSD to Wordpress, Plugin development. - Magneto development. E-commerce website development. - Front end development. We are very good with HTML/CSS, Responsive coding. Bootstrap development. We write W3C validated code. - Website optimization we use Gtmetrix as as standard and can get any website in A/B grade. - PHP application development. "You dream it. I build it!" Thank you for spending your valuable time on my profile.
An Oracle Developer is a database specialist who designs, builds, and maintains applications and data structures on Oracle Database using PL/SQL, SQL, and Oracle's developer toolset. These freelancers translate business logic into reliable, high-performance database code that powers enterprise systems, financial platforms, and reporting pipelines. Hiring an experienced Oracle developer means getting clean schema design, optimized queries, and stored procedures that scale under production loads.
Oracle developers build the data layer that keeps mission-critical applications running. They write PL/SQL packages, procedures, functions, and triggers; design normalized schemas; and tune queries that handle millions of rows. Their work directly affects application response times, reporting accuracy, and the cost of running Oracle infrastructure.
A freelance Oracle developer typically delivers production-ready database code, technical documentation, migration scripts, and performance benchmarks. Whether you are modernizing a legacy system, integrating Oracle with a new application, or building reporting layers, an Oracle PL/SQL developer brings the depth needed to avoid expensive rework.
A capable Oracle SQL developer works fluently across Oracle's ecosystem and modern integration tooling. Look for hands-on experience with:
Oracle remains the database of choice for organizations with heavy transactional and regulatory demands. Common use cases include:
Strong candidates demonstrate deep PL/SQL fluency, schema design judgment, and a track record of tuning slow systems. Look for portfolios that include real performance gains, complex package code, and migration projects. Oracle Certified Professional (OCP) and Oracle Certified Master (OCM) credentials are useful signals, as is documented experience with specific Oracle versions matching your environment.
Review writing samples of stored procedures or anonymized scripts to assess code clarity, error handling, and use of bulk operations. Pay attention to whether candidates discuss execution plans, statistics, and indexing strategy unprompted — that is a strong indicator of senior-level skill.
Sample interview questions to use directly:
Freelancer.com gives you access to a global pool of Oracle developers, PL/SQL programmers, and database consultants across every Oracle version and industry vertical. You can compare proposals from senior developers, certified Oracle professionals, and full database teams in one place. Clients set their own budgets and receive competitive bids, making it straightforward to match scope to spend.
The platform's ratings, written reviews, and verified profiles help you assess quality before you commit. Milestone Payments hold funds until you approve work, giving you control over engagements ranging from one-off scripts to multi-month migrations. With freelancers on Freelancer.com available across time zones, you can keep development moving around the clock.
Ready to build, tune, or migrate on Oracle?
Hiring an Oracle developer works best when you treat the database environment as a first-class part of the brief. The clearer you are about Oracle version, schema scope, and integration points, the faster you will receive bids from genuinely qualified freelancers. The process below walks through posting, reviewing, and awarding the project on Freelancer.com.
Your project post is the single biggest determinant of bid quality. Oracle work spans many sub-disciplines — PL/SQL development, performance tuning, APEX, migrations, ERP customization — so a precise brief filters for freelancers whose experience matches your stack. Head to the
Bids are short proposals that show how each freelancer interprets your brief. A strong Oracle developer will respond with a clear technical approach — not just a price. Read each proposal carefully and shortlist the candidates who demonstrate genuine understanding of PL/SQL, your Oracle version, and the type of work you need.
Your final decision should combine proposal quality with profile evidence. For Oracle work, consistency matters more than a single standout project — you want a freelancer who has delivered reliable database code repeatedly. Spend time on each shortlisted profile before awarding.
An Oracle Developer writes the PL/SQL code, designs schemas, and builds the application logic that lives inside the database. An Oracle DBA focuses on installation, backup, security, patching, and overall database health. Many senior freelancers cover both areas, but for application work you should prioritize development experience.
Yes. Many clients hire Oracle freelancers for short engagements such as writing a specific package, tuning a slow report, building an APEX form, or scripting a data migration. Define the deliverable clearly in your brief and you will receive focused bids for the exact scope.
If your application runs on Oracle Database and uses PL/SQL, stored procedures, or Oracle-specific features such as packages, sequences, or APEX, hire an Oracle developer. A general SQL developer may handle basic queries but typically lacks the depth needed for tuning, partitioning, and PL/SQL package design on Oracle.
Match the freelancer's experience to your environment. Oracle 19c is the current long-term support release widely used in production, while many enterprises still run 12c or are migrating to 21c or Oracle Autonomous Database on OCI. State your version in the project brief so candidates can confirm direct experience.
A focused PL/SQL script or query tuning task can be completed within days, while a full migration, APEX application, or data warehouse build typically runs over several weeks or months. Timeline depends on data volume, integration complexity, and testing requirements, all of which should be discussed during shortlisting.

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