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Omid K.
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Omid K.

.NET Backend Developer | API Integration & Workflow Automation

I help teams running .NET business applications connect their software, synchronize data, and automate manual handoffs. I build C# / ASP.NET Core APIs and integrations so information moves between systems without repeated data entry. If your team copies records between applications, reconciles disconnected systems, or depends on manual steps to keep operations moving, I can help you build a more reliable integration. WHY WORK WITH ME My integration experience spans airport operations, banking onboarding, gift-card platforms, and clinic management software. I have connected operational workflows with accounting software, introduced APIs between legacy and modern applications, and implemented configurable forms and business processes. I work with existing systems and their constraints. Before implementation, I clarify which system owns each record, how information should move, and how failures should be handled. The first milestone has a defined scope and acceptance criteria. CORE SERVICES • Business system integration Connect .NET applications with accounting software, operational platforms, and third-party APIs to reduce duplicate entry and manual handoffs. • REST API development Build and extend ASP.NET Core APIs that expose business functionality and support communication between applications. • Data synchronization and processing Implement data mapping, validation, and transaction handling for records moving between connected systems. • Workflow automation Connect forms, onboarding steps, document routing, and approval processes using backend services, Elsa Workflows, and Formio where appropriate. • Legacy system integration Build facade APIs and integration layers that allow WCF or .NET Framework applications to work alongside modern .NET services during phased modernization. • AI integration within business workflows Connect LLM APIs to application processes, with structured inputs and outputs, validation, and human review before generated content is applied. RELEVANT EXPERIENCE 🏆 Top Rated Plus | 100% Job Success Score 💰 $100K+ Earned on Upwork | ⏱️ 3,600+ Hours Delivered 🎯 Senior .NET Architect & Full-Stack Specialist

🇹🇷Istanbul, Turkey$35/hr100% JSS5.00 (5)Since Jul 2021

Earnings and projects

MRR
$1k

Last 6 months ÷ 6

World#46,699 / 412k
🇹🇷Country#343 / 3,515
Revenue, last 30 days
$0

Last 6 months: $6.2k

Total earnings
$108k

Billed in all: $113k

World#35,971 / 412k
🇹🇷Country#277 / 3,515
Per project
$12k

$3.1k in the last 6 months

World#12,648 / 412k
🇹🇷Country#102 / 3,515
Projects, last 6 months
2
50% fixed50% hourly
World#88,918 / 412k
🇹🇷Country#683 / 3,515
Projects in all
9

Across 10 contracts

70% fixed30% hourly
World#212,268 / 412k
🇹🇷Country#1,793 / 3,515

Earnings, last 30 days

$113kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$110k$112k$114k$116kOct 8Oct 23Nov 7

Skill rankings: Top 11% in RESTful API

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