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Vietnam
$14/hr
100%
Job Success
$1K+ earned
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✅JAVA
- Java core, java command line Application, JavaFX, Java web(Spring, Struts, Sevlet)
- Strong with many modern framework like String, Quarkus,...
- Jasper, Tibco jasper report, convert jrxml into jasper file
- Run ffmpeg to convert video/image format
- JSP and servlet coding, Thymleaf
- SQL developer with experience to improve Database performance
- API integration, RestAPI development
- Familiar with AWS service such as: S3, EC2, lambda or VPC
- Web scraping with Java and Selenium web driver
✅Database
- Expert at SQL query with complicate query
- Database optimization and query tuning
- More than 10 years experience working with many relation database such as Oracle, MySQL, Postgres
- Database design, schema design
✅KAFA
- Expert level of kafka development
- Strong at message queue and event processing
- Expert in kafka configuration, consultancy
- Work well on both java/python
✅PYTHON:
- Flask and Django framework
- Pandas, Numpy, PyGUI, Twinker
- Web scraping with Selenium, BeautifulSoup, HTML parse,...
✅NODEJS
- Typescript
- Express framework with MongoDB, Relational DB
✅Bash scrip/Powershell
- Shell script, C shell, Powershell
- Automation script for web scrapting, sending mail, task processing, ...
✅Cloud:
- AWS, GCP, Azure
✅Front-end:
- Angular, VueJS and ReactJS
$13/hr
$0 earned
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Need a high-performance Oracle solution built from the ground up? 🚀
I don’t just modernize—I architect, develop, and automate end-to-end enterprise platforms. As an Oracle ACE Apprentice and OCP with 6+ Cloud Certifications, I transform complex data into scalable business assets.
🚀 What I Deliver:
🏗️ End-to-End Development: Architected systems with 130+ tables and 150+ PL/SQL units, ensuring absolute data integrity.
🤖 AI Integration: Implementing Oracle AI Vector Search (RAG) for intelligent, semantic search across enterprise data.
⚡ Modernization: Seamlessly migrating Forms to APEX, delivering 40% performance gains and cutting processing time by days.
📱 Mobile-First Backends: Engineering secure ORDS REST APIs for Flutter, achieving 70% higher reliability.
☁️ Cloud Operations: Full OCI deployment, Autonomous DB optimization, and automated CI/CD pipelines.
💻 Tech Stack:
Oracle APEX 24.x • PL/SQL • OCI • AI Vector Search • ORDS • Flutter • Autonomous DB.
From database design to AI-powered apps, I build it all. Let’s discuss your vision and build a solution that lasts.
$10/hr
$100+ earned
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Enthusiastic Oracle Database Administrator with the below mentioned skills:
● Manages Oracle 19c, 18c and 12c databases on Linux and AIX servers.
● Created ASM disk groups, addition, resize and deletion of ASM disks.
● Performed Oracle Grid and RDBMS Installation on (12c/18c/19c) production servers.
● Configured Oracle Dataguard with and without DG Broker for High availability.
● Performed Grid and RDBMS installation on Google Cloud and Bare Metal servers.
● Performed RAC configuration on Linux servers.
● Experience on Transparent Data Encryption and database compression.
I possess good communication skills and can handle customers as well. I provide 100% work satisfaction with dedication and responsibility towards the work assigned to me.
$90/hr
100%
Job Success
$100K+ earned
Available now
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With over 20 years of extensive experience in software development, a strong foundation in a variety of programming languages, and a proven track record in delivering efficient and scalable software solutions, I am confident in my ability to contribute effectively to your team.
I specialize in full stack development, data engineering, database design, cloud migration, API integrations, and enterprise application modernization. My main technical strengths include .NET, C#, React, Angular, SQL Server, PostgreSQL, AWS, Azure, ETL, SSIS, Power BI, Tableau, Docker, Kubernetes, and microservices.
Throughout my career, I have worked with healthcare, fintech, government, aviation, and enterprise clients. I have built web applications from the ground up, optimized slow systems, designed data warehouses, created ETL pipelines, developed reporting dashboards, migrated legacy systems to modern cloud platforms, and led development teams through full project lifecycles.
I can help with:
• Full stack web application development
• NET / C# backend development
• React / Angular frontend development
• SQL Server / PostgreSQL database design
• ETL, SSIS, data warehouse, and reporting
• AWS / Azure cloud deployment and migration
• API integrations and microservices
• Power BI, Tableau, and Grafana dashboards
• Legacy system modernization and performance optimization
I am comfortable working independently or as part of a team, and I can take a project from requirements gathering and architecture through development, testing, deployment, and ongoing support.
My goal is always to build solutions that are secure, scalable, reliable, and easy to maintain.
$30/hr
$50 earned
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I bring extensive experience in managing and optimizing PeopleSoft Campus Solutions and enterprise applications. My expertise spans both the technical and functional aspects of PeopleSoft administration, with a strong foundation in database management and system integration.
> Database Administration: Proficient in SQL, Oracle, and MS SQL Server, with a focus on optimizing enterprise applications.
> System Management: Experienced in managing Windows operating systems and handling PeopleSoft environments for various industries.
> User & Security Administration: Skilled in setting up and managing security protocols for PeopleSoft applications.
> Integration Broker Configuration: Proficient in configuring integration broker and managing seamless data exchange between systems.
> Application Server Development: Expertise in developing and maintaining application servers to enhance system performance.
Notable Projects:
Indus University of Health Sciences, Karachi
BUITEMS Quetta, Balochistan
Askari Bank Pakistan
DUHS Krachi, Pakistan
Doha Institute of Graduate Studies, Qatar
Shaafay M.
has worked
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$40/hr
$5K+ earned
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I’m a NetSuite Consultant & Developer with 9+ years of hands-on experience in NetSuite implementations, customization, integrations, and post-go-live support across multiple business domains.
Over the years, I have worked extensively on end-to-end NetSuite implementations, helping businesses streamline operations, optimize workflows, and improve reporting capabilities. I have also provided long-term post-implementation support, resolving day-to-day operational issues and developing tailored enhancements based on evolving business requirements.
My expertise includes custom development using SuiteScript 1.0 & 2.x, Suitelets, User Events, Map/Reduce Scripts, Scheduled Scripts, Workflows, Saved Searches, PDF/Advanced PDF templates, and SuiteAnalytics.
I have also worked on NetSuite integrations with third-party platforms such as eCommerce systems, payment gateways, shipping providers, CRMs, and external APIs to ensure smooth data synchronization and business process automation.
I specialize in building scalable and efficient NetSuite solutions that improve automation, operational efficiency, and overall business performance.
Whether you need implementation support, custom development, integrations, troubleshooting, or process optimization, I can help deliver reliable and business-focused NetSuite solutions.
$25/hr
$0 earned
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I am an experienced ORACLE APEX & PLSQL DEVELOPER with over 7 years of expertise in Oracle FORMS 6i, REPORTS 6i, and APEX Application development. As a Lead DEVELOPER at BSS92, I specialize in SQL, PL/SQL, and Oracle APEX (versions 19.2 to 24.2), with a solid understanding of Oracle 10g to 21c RDBMS. Proficient in responsive web techniques, HTML5, CSS3, and JavaScript, I elevate user experiences within applications. Notably, I attained the Oracle APEX Cloud Developer Certified Professional designation in 2023, highlighting my proficiency in cloud-based Oracle APEX development and unwavering commitment to achieving outstanding outcomes.
Egypt
$12/hr
$100+ earned
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Objective
An enthusiastic and driven learner, looking to enhance my practical knowledge in the Web development and
information technology sector
$50/hr
$0 earned
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Professional Overview
15+ years of backend development expertise specializing in database-driven applications and enterprise system integration. I build robust, scalable backend solutions that power mission-critical business operations.
Currently: Senior Database Administrator in the medical education sector, architecting backend systems and ensuring 99.9% uptime for enterprise applications.
Core Backend Expertise
Application Development & Integration
• Database-Driven Applications: Enterprise-grade backend systems
• System Integration: ERP systems, legacy modernization
• Performance Optimization: Backend bottleneck resolution
• Python & APIs: Database automation, basic data processing
Database Backend Technologies
• Oracle Systems: 9i through 19c (OCP Certified) - Expert level
• SQL Server: 2005-2019, T-SQL optimization
• PostgreSQL: Advanced querying and performance tuning
• MongoDB: NoSQL database fundamentals
Cloud & Infrastructure
• Oracle Cloud Infrastructure: AI-certified specialist
• Microsoft Azure: Fundamentals and Data certified
• Cloud Migration: Backend system transitions
• Scalable Architecture: High-availability designs
What I Deliver for Your Backend
✅ Scalable System Architecture - Design robust backend infrastructure that grows with your business
✅ Database Performance - Optimize backend queries for 70% faster response times
✅ System Integration - Connect disparate systems seamlessly
✅ Cloud Migration - Modern backend solutions in the cloud
✅ Reliable Operations - 99.9% uptime for mission-critical applications
Technical Stack
Core Languages: SQL, PL/SQL, T-SQL, Python
Backend Databases: Oracle, SQL Server, PostgreSQL, MongoDB
Cloud Platforms: Oracle Cloud, Microsoft Azure
Enterprise Systems: Oracle EBS, JD Edwards
Development Tools: Visual Studio, Linux/Windows Server
Industry Experience
• Enterprise Experience: Backend systems across medical education, government ministries, container terminals, manufacturing, and multi-business conglomerates
• Complex Integrations: ERP backends, data warehousing, reporting systems
• Regulated Environments: Healthcare compliance, government security standards
Education & Certifications
• MBA in Information Technology (CGPA 3.7/4.0)
• Data Analytics Essentials Certified (CISCO 2024)
• Oracle Cloud Infrastructure 2023 AI Certified
• Oracle Certified Professional (OCP) - Database Systems
• Microsoft Azure Certified - Cloud Fundamentals
Why Choose Me for Your Backend?
• Proven Track Record: 15+ years building enterprise backend systems
• Performance Focus: Expertise in optimizing slow, inefficient backends
• Full-Stack Understanding: Database to application layer expertise
• Reliable Delivery: Strong communication and project completion rate
Ready to build or optimize your backend infrastructure for peak performance.
________________________________________
Specializing in database-heavy backend applications and enterprise system modernization. Let's discuss your backend challenges.
$25/hr
$0 earned
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Are you building a new ERP module or scaling your existing one, only to be held back by a database that can't keep up? A poor foundation leads to slow performance, data integrity issues, and limits your business growth.
I don't just fix databases; I build them for the long haul. I am an ERP Database Architect who specializes in designing and developing robust, scalable backend systems from the ground up. I ensure your new Inventory, Sales, or Finance module is built on a solid, high-performance foundation right from the start.
With over a decade of experience, I bridge the gap between business logic and database technology. I translate complex requirements—like multi-warehouse inventory tracking, complex financial reporting, or automated payroll calculations—into efficient, reliable, and well-structured database designs.
My end-to-end ERP database services include:
🗄️ Greenfield Database Design: I architect new ERP schemas with normalized tables, proper constraints, and scalable relationships to support your business processes.
🔧 Custom Module Development: I build the core database objects—tables, views, stored procedures, functions, and triggers—that power your custom ERP features.
🚀 Performance by Design: I ensure performance isn't an afterthought. I implement intelligent indexing and write efficient SQL code so your new systems are fast from day one.
🛡️ Data Integrity & Security: I design robust role-based security and implement critical business logic in the database to ensure your data is accurate and protected.
📈 Legacy System Refactoring: I modernize and redesign outdated ERP databases to improve scalability, maintainability, and support new features.
I am proficient across the major database platforms, including Oracle (11g-19c), SQL Server, PostgreSQL, and MySQL, and can develop on-premise or in the cloud (Azure/AWS).
If you're planning a new ERP implementation, adding a critical module, or need to untangle a complex legacy database, let's talk. I provide clear, reliable solutions that form the dependable backbone of your business operations.