As a .NET developer, I am a skilled software developer who specializes in creating applications using the Microsoft .NET Core. I have a strong understanding of programming concepts and are proficient in languages like C#.
My primary role is to design, develop, and maintain applications using the .NET framework. This involves working with various tools and technologies to build desktop, web that run on Windows operating systems and other platforms.
I am also adept at working with different software development methodologies such as Agile or Scrum and are able to work collaboratively with other team members, including project managers, designers, and other developers.
🔥 What I specialize in:
C# / VB.NET Desktop Application Development (WinForms, DevExpress)
SQL Server performance tuning & query optimization
ERP & Accounting Systems (Inventory, GST, Reporting)
QuickBooks Desktop Integration (QB SDK, automation, sync)
Fixing slow applications caused by database or code issues
Excel/VBA → .NET Application or DLL Conversion
API integrations & system synchronization
Auto-updaters (Application + Database migration)
Industrial systems (Serial Port, Bluetooth, real-time control)
💡 Proven real-world experience:
✔ Inventory & Billing Systems with DevExpress
✔ Custom CRM & HRM Solutions (Multi-User)
✔ Financial Dashboards with Real-Time Charts
✔ Booking & Scheduling Tools with Reminders
✔ Secure Login & Licensing Applications
✔ ERP system for diamond industry (high-volume transactions)
✔ Optimized SQL performance for business-critical systems
✔ QuickBooks automated order & invoice sync
✔ Bulk email automation system (Google API integration)
✔ Excel VBA converted to scalable VB.NET DLL
✔ API-based auto-update system with database upgrades
✅ Technical Expertise
✔ Languages & Frameworks: C#.NET, VB.NET, WinForms, Desktop Application, .NET Framework, .NET Core
✔ UI Frameworks: DevExpress, Custom Controls
✔ Backend Logic: Complex Business Rules, Data Processing, API Integrations
✔ Databases: SQL Server (Advanced) - [Stored Procedures, Functions, Triggers, Query Optimization, Performance Tuning, Indexing & Execution Plans],
Oracle Database, MS Access, Database Design & Architecture, Data Migration & Integration
✔ Extras: Reporting, Printing, Multi-language Apps, Licensing Systems, Crystal Reports / RDLC Reporting, Git Version Control
⚡ Why clients hire me:
✔ 14+ years of strong industry experience
✔ Expert in C#, .NET, and enterprise application development
✔ Strong database optimization and performance tuning skills
✔ Experience in SQL Server, Oracle, and MS Access
✔ Strong experience with real-world business systems (ERP)
✔ I quickly identify performance bottlenecks and fix them
✔ Focus on speed, stability, and long-term scalability
Database
Oracle
C#
VB.NET
DevExpress
Microsoft SQL Server
SAP Crystal Reports
Microsoft SQL Server Reporting Services
DevExpress Reporting
Database Management
Web API
Bot
Microsoft Access
DevOps
Andrew P.
Glasgow, United Kingdom
$100/hr
5.0
1 jobs
Experienced Oracle Database Administrator with 14+ years of working with Managed Service Providers and large cororations within the Financial Sector. Strong IT professional focused on Oracle Database Administration, Performance Tuning, Solaris, AIX & Linux.
I am a keen PC gamer, and a regular tech blogger writing about everything and anything in the world of Tech.
Red Hat Enterprise Linux
Oracle Upgrade
Linux System Administration
Oracle RAC
Oracle Data Guard
Oracle Patching
Oracle WebLogic Server
Oracle PLSQL
PRADEEP G.
Slough, United Kingdom
$55/hr
4.3
5 jobs
Oracle/SQL/PostgreSQL Database Administrator, Certified Scrum Master
Experienced & highly motivated IT professional with extensive knowledge of Oracle (Data Guard & Grid Infrastructure) 23ai/21c/19c/18c/12c/11g/10g/9i/8i, MSSQL 2005/8/12/14/19, PostgreSQL 13.10 /12.2 /9.6, MongoDB, Oracle Cloud (OCI), Amazon RDS, Microsoft Azure, Google Cloud, Exadata Machine X6/3-8, Golden Gate 11g/12c & Python 3.6. Recognised mentor and coach for new team members. Strong client relationship building skills.
CAREER SUMMARY:
•ITIL v4 & Scrum Master with over 27 Years of experience in Oracle Database Administration
•DBA with a depth knowledge of Infrastructure Projects, Operations tasks including Operating Systems, Networking, Firewall, Shared storage, Virtual Machines/vCenter & Cloud Infrastructures.
•Oracle Autonomous Database Cloud 2020/2021 Certified Specialist
•Oracle Cloud Database Migration and Integration 2021 Certified Specialist
•Certified Oracle AI Vector Search Professional (1Z0-184-25)
•Oracle Certified Professional (OCP) 12c/11g/10g DBA
•Oracle RAC Certified Administrator 10g
•Oracle Exadata 11g Certified Implementation Specialist
•Oracle Enterprise Linux Certified Associates
•Oracle Certified SQL and PL/SQL programmer
•AWS Certified Cloud Practitioner
•Six Sigma Green Belt Certified Professional.
•Sun Certified Programmer for the Java 2 Platform 1.4
•Cloudera Certified Administrator for Apache Hadoop (CCAH) (License: 100-013-767)
•PCAP – Certified Associate in Python Programming (PCAP-31-03)
•Experience with AWS, EC2/Compute Engine/Bare Metal/VMWare, RDS PostgreSQL/Oracle,
•Experience with Oracle Cloud Infrastructure, Oracle Database Cloud Service (DBCS), ADB
•Exadata (Database Machine) Administration for 10 x X3-8 Full Rack Exadata Racks (Production, Development & Test), including Configuration, & Patching all Components
•Architected & Setup 60TB 11g Oracle RAC HA & DR database using Data Guard & Golden Gate
•Supported 60TB large data database with 100 billion row tables, 3 TB Arch log per day.
•Design approach & migrated OLTP 11g DG 8TB to 12c DG database using Golden Gate
•Successfully migrated OLAP 10g RAC to 11g RAC database of total size of 10 TB
•Architected & Integration of Oracle 12/19c Database with Oracle Unified Directory (OUD) & LDAP
•Successfully Integration of Centrally Managed Users (CMU) with Oracle 19c.
•Successfully upgraded 10g/11.2/12.1/19c Oracle database to 12.2/19c/21c using Manual Method
•Integration of RMAN with Snapcenre, IBM SPP/SP/TSM, EMC Legato Networker Mgr & DD Boost
•Performance Tuning of SQL Queries, Database, Application & Performance Monitoring
•Supported Oracle & SQL Server 2000/2K5/2K8/2012/14/19 databases on Windows 2003 to 2019
•Design & Configured HA Oracle Enterprise Manager 13c/12c Cloud Control (OEM 12c)
•Extensive knowledge & Hands on experience with Ticketing tool SM9, ServiceNow & JIRA
•Extensive knowledge of AWS, EC2, RDS, Data Migration/Loading to RDS & AWS Console Expert.
•Strong skills in Linux/Unix system administration (RHEL)
•Strong knowledge of VM Ware, Load Balancer, DNS, Firewall & Networking
•Experience working Data Warehousing, ETL/interface configuration and management.
•OLTP/OLAP Data modelling, logical & physical design & Implementation using ER Win & Studio
•Strong Data Analysis Skill and writing PL/SQL Code utilities for data retrieval and load
•Writing Database Security baselines, remediation and data hardening.
•Experience working with TDE, Data Compression (EHCC, OLTP), Smart Scan
•Excellent communication, writing standards guide, handover/knowledge documentation
Oracle Programming
Oracle Exadata
Oracle Data Guard
Oracle Patching
Oracle APEX
Oracle PLSQL
Oracle Upgrade
Oracle GoldenGate
Oracle Performance Tuning
High Availability and Disaster Recovery
Mohammed A.
London, United Kingdom
$15/hr
5.0
2 jobs
𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗪𝗲𝗯 & 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝗖𝗿𝗼𝘀𝘀-𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 | 𝗔𝗜/𝗠𝗟 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘀𝘁
Full stack mobile app developer with 7+ years of experience in Mobile App Development, specializing in iOS, Swift, Android, Kotlin, KMM, Kotlin Mutliplatform / KMP, React Native, and Flutter. I have successfully delivered 120+ mobile applications in different roles as mobile app developer, flutter app developer, flutter full stack developer, flutter flow, mobile app design, mobile ui ux designer, swift ios developer, android developer, kotlin developer, react native developer, mobile game developer achieving a 5-star rating on Upwork and helping clients scale their businesses with high-performance solutions.
Keywords:
“Full stack developer,” “Full stack web developer,” “Full stack engineer,” “Full stack development,” “Full stack programmer,” “Full stack software developer,” “Full stack JavaScript developer,” “MERN stack developer,” “MEAN stack developer,” “LAMP stack developer,” “JAMstack developer,” “Senior full stack developer,” “Remote full stack developer,” “Freelance full stack developer,” “Backend and frontend developer,” “Web application developer,” “SaaS developer,” “API developer,” “Cloud developer,” “Enterprise application developer,”
“Frontend developer,” “Frontend engineer,” “React.js developer,” “React expert,” “React Native developer,” “Angular developer,” “AngularJS expert,” “Vue.js developer,” “Next.js expert,” “Nuxt.js developer,” “Svelte developer,” “JavaScript developer,” “TypeScript developer,” “jQuery developer,” “Bootstrap expert,” “Tailwind CSS developer,” “HTML5 developer,” “CSS3 developer,” “UI developer,” “UX developer,”
“Backend developer,” “Node.js developer,” “Express.js expert,” “Python developer,” “Django developer,” “Flask expert,” “FastAPI developer,” “PHP developer,” “Laravel developer,” “Symfony developer,” “CodeIgniter expert,” “Ruby developer,” “Ruby on Rails developer,” “Java developer,” “Spring Boot expert,” “Kotlin developer,” “C# developer,” “ASP.NET developer,” “.NET Core developer,” “Golang developer,”
“Database developer,” “SQL developer,” “MySQL expert,” “PostgreSQL developer,” “MongoDB developer,” “NoSQL expert,” “Firebase developer,” “DynamoDB expert,” “Oracle database developer,” “Redis developer,” “GraphQL developer,” “Database administrator,” “Data modeling expert,” “Database optimization,” “ETL developer,” “BigQuery expert,” “Snowflake developer,” “Supabase developer,” “CouchDB expert,” “MariaDB developer,”
“Mobile app developer,” “iOS developer,” “Android developer,” “Flutter developer,” “React Native expert,” “Xamarin developer,” “Swift developer,” “Kotlin mobile developer,” “Objective-C developer,” “Cross platform developer,” “Progressive web app developer,” “Hybrid app developer,” “Mobile UI developer,” “Mobile UX expert,” “Mobile backend developer,” “API integration developer,” “Firebase mobile developer,” “App Store deployment,” “Play Store deployment,” “iOS/Android full stack developer,”
“DevOps engineer,” “Cloud engineer,” “AWS developer,” “AWS Lambda expert,” “Azure developer,” “Google Cloud developer,” “Kubernetes expert,” “Docker developer,” “CI/CD expert,” “Jenkins developer,” “Terraform expert,” “Ansible developer,” “Serverless developer,” “Cloud native developer,” “Infrastructure as code,” “Cloud security expert,” “Microservices developer,” “Cloud API developer,” “Amazon EC2 expert,” “AWS RDS developer,”
“E-commerce developer,” “Shopify developer,” “WooCommerce expert,” “Magento developer,” “BigCommerce developer,” “OpenCart expert,” “Prestashop developer,” “Wix developer,” “Squarespace developer,” “WordPress full stack developer,” “Drupal developer,” “Joomla developer,” “CMS developer,” “Custom plugin developer,” “Theme customization expert,” “Headless CMS developer,” “Sanity expert,” “Contentful developer,” “Ghost CMS expert,”
“REST API developer,” “GraphQL API expert,” “API integration developer,” “Payment gateway integration,” “Stripe integration expert,” “PayPal integration developer,” “Braintree integration,” “Twilio developer,” “Zapier expert,” “Webhooks integration,” “Social media API developer,” “Google Maps API developer,” “Firebase integration,” “Third party API developer,” “API automation expert,” “SOAP API developer,” “Custom API developer,” “API security expert,” “Microservices API developer,” “API testing developer,”
“Blockchain developer,” “Web3 developer,” “dApp developer,” “Smart contract developer,” “NFT expert,” “AI developer,” “Machine learning developer,” “Data science expert,” “TensorFlow developer,” “PyTorch developer,” “Chatbot developer,” “OpenAI developer,” “LangChain expert,” “RPA developer,” “IoT developer,” “AR/VR developer,” “Game developer,” “Unity developer,” “Unreal Engine developer,” “Three.js developer,”
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