I am working full time at Upwork, having 17+ years of experience, mainly with Server side apps and scripts, Backend Rest APIs | Web APIs, Api Integrations, desktop software development, Windows Services, Software Add-ins, Sync Apps (to sync data between servers), Application Installers, SQL & NoSQL database development, PowerShell and VBScript scripts.
I have been working at Upwork since April 2010, completed 300+ projects, 10000+ hours, have high client retention, and I have been Top Rated Upwork freelancer for the last 7 years, and Top Rated Plus for last few months..
I have great expertise with following technologies, APIs, and frameworks:
Winform Apps,
WPF Apps, WPF MVVM, XAML
WPF Apps using Figma
WPF POS Apps
PowerShell automation, PowerShell scripts to install Apps
VBScript, VBA scripting
Rest API\ Web API development,
HTTP Web Api Clients, Rest Api Clients, Rest Api Wrapper SKDs
Web Services (SOAP),
Windows Services, Multi-threaded windows services
App Installers (using Visual Studio Setup Projects and WIX setup toolkit)
Auto Updating Apps & Installers, Silent Installers (from Windows Services)
Windows Backup Apps (to Azure, AWS, or FTP),
Windows USN Journal Api for backup,
WebHooks, JSON
Exchange Server 2007/2010/2013/2016/2019,
Office 365, MSOnline PowerShell Module
MS Graph Api,
Azure AD integration,
Azure AD PowerShell Module
Azure Multi-tenant Apps, Azure OAuth
Outlook Rest Api,
Azure Runbooks, Azure WebJobs
Active Directory Integration,
.Net Active Directory Api, Active Directory PowerShell Module
Exchange Web Services Api (EWS API)
Azure Blob Api,
AWS S3 Api,
AWS Polly Text To Speech API
Exchange Transport Agents,
C#, VB.net, .Net Core
VC++.Net, COM, ActiveX, Win32 API, MFC, Multi threaded Apps
Outlook Addins (Outlook Object Model), VSTO Addins,
Outlook Mail Merge (with MS Excel | MS Word + Database)
Redemption (MAPI),
AddinExpress, DevExpress
OOP, WCF, Asp.net,
AD Password Filter,
WMI (Windows Management Instrumentation Api)
Google Mail Api, Calendar Api, Google Directory API, Google OAuth, Google GSuite Api | Google Workspace Api
Python scripts with MS Graph api
MS SQL Server, MySql Server, SQLite programming,
Azure SQL Server,
Entity Framework,
NoSql (MongoDB)
Exchange Online,
Office-365-PowerShell, Office365-API
Exchange Server Multi-Tenancy (Address Book Policies)
Active Directory & Windows Server Automation,
Exchange Server installation, Email Migration, Auto Discovery, Mail Flow configuration,
Exchange Server migration scripts,
Exchange-To-Exchange and Exchange-To-Office365 Email Migration apps (scripts) development,
Outlook Connectivity
Hyper V API using WMI,
WinSCP Api for FTP and sFTP
Windows Firewall API
Sync Apps (one way or bidirectional sync), to sync data between 2 systems
(e.g AD+DB, Exchange+DB, AzureAD+DB, Office365+MongoDB, BambooHR+LearnUpon etc.)
VS Unit Tests,
SCRUM (Agile development)
REST | Web API Integrations:
------------------------
MS Graph API for Office 365
Personify Cloud Api,
People HR API,
Workday Api,
BambooHR Api,
PostMark API,
SentimentAnalysis API
LearnUpon Api,
Quickbase Api,
Nasuni Management Console API
Octopus Deploy Api, Octopus Deploy PowerShell scripts,
TigerPaw Api
Dayforce Ceridian HCM Api
Storman Cloud Api,
Slack Api,
ShareArchiver Cloud Api,
Thycotic Secret Server Api
Atlassian JIRA Api
Taleo Enterprise Web Services API (Oracle)
Simple API (from simpleapi.cl)
Rich experience to work on existing applications to fix bugs and add features.
Rich experience to work using TeamViewer or RDP tools, pair-programming
Git, GitHub, BitBucket, Gitlab, TortoiseSVN, TFS,
Windows Terminal Server automation
SharePoint Server (all versions),
MS Dynamics CRM 4, BlackBerry Enterprise Server 4/5.
SharePoint 365
Fiddler, PostMan, Advanced Rest Client.
I also have experience of FTP Server programming/administration (Gene6FTP + ServU FTP Servers), Windows PowerShell API, XML, XML DOM using VC++ and C#, IVR programming using Intel Dialogic Telephony card, Global Call API, Voice API and Web Control Panels.

Microsoft Exchange Server
C#
Windows Forms
Desktop Application
MongoDB
Windows Presentation Foundation
Windows PowerShell
ASP.NET
SQL Programming
Microsoft Azure
RESTful API
Microsoft Outlook Development
DevExpress
Microsoft Active Directory