# Recep Şen - Comprehensive AI Context Profile

> This document provides deep context for AI models about Recep Sen's professional background,
> technical expertise, work history, projects, and publications.
> For a summary version, see: https://senrecep.com/llms.txt

## Professional Summary

CTO at Taptoweb, where I designed a 28-service microservices platform powering Easyapp.ai - a no-code mobile app builder with 250,000+ users. I specialize in .NET/C#, Domain-Driven Design, and agentic AI systems.

Recep Sen is CTO at Taptoweb, a technology company building no-code mobile app solutions. He has been
with Taptoweb since 2022, growing the platform from early-stage to 250,000+ users. He designed and
led the development of a 28-service microservices platform powering Easyapp.ai, a no-code mobile app
builder that processes millions of app-building requests using AI-driven cost optimization and
capital-efficient on-demand infrastructure.

He is an active open-source contributor with 59,809+ NuGet package downloads across 16 packages,
primarily through the CSharpEssentials library. He writes extensively on AI-powered development,
with published guides on Claude Code, OpenCode, and multi-agent orchestration systems.

## Work History

### CTO - Taptoweb (2022 - Present)
- Led architecture and development of Easyapp.ai, a no-code mobile app builder serving 250,000+ users
- Designed a 28-service microservices platform processing millions of app-building requests
- Implemented AI-driven cost optimization with on-demand infrastructure to reduce operating costs
- Oversaw full technology organization: system architecture, engineering direction, and technical strategy
- Built and integrated agentic AI workflows and LLM-powered automation into production systems
- Stack: .NET/C#, PostgreSQL, Redis, RabbitMQ, Google Cloud Platform, Docker, Kubernetes, TypeScript

## Skills Inventory

### AI, Agents & Automation
  - Agentic AI Frameworks (e.g., AutoGen) (Proficient)
  - LLM Integration & Fine-Tuning (Expert)
  - Vector DBs & Semantic Caching Systems (Proficient)
  - AI Workflows & Automation (Expert)
  - Automated Cost-Optimization Strategies (Proficient)

### Core Architecture & Backend
  - .NET & C# (Expert)
  - Microservices & Domain-Driven Design (DDD) (Expert)
  - Node.js & Nest.js (Proficient)
  - Go (Golang) (Familiar)

### Data & Messaging
  - PostgreSQL (Expert)
  - Redis (Expert)
  - RabbitMQ (Expert)
  - MongoDB (Proficient)
  - Elasticsearch (Proficient)

### Cloud Native & DevOps
  - Google Cloud Platform (GCP) (Proficient)
  - Docker & Containerization (Proficient)
  - CI/CD Pipeline Architecture (Proficient)
  - Kubernetes (K8s) (Proficient)

### Frontend & API Layer
  - TypeScript (Expert)
  - Next.js (Proficient)
  - API Design (Expert)

## NuGet Packages

- **CSharpEssentials**: C# library implementing the Result Pattern, Any Pattern, and Maybe Pattern
  - 59,809+ total downloads across 16 NuGet packages
  - URL: https://www.nuget.org/profiles/senrecep
- **Aspire Microservice Starter Template**: Production-ready .NET Aspire orchestration starter
  - URL: https://github.com/senrecep/Aspire

## Projects

### Easyapp (2022)
- URL: https://easyapp.ai
- Description: Led the architecture and development of a microservices-based platform serving 250,000+ users. Implemented AI-driven cost optimization and a capital-efficient, on-demand infrastructure.
  Tags: AI, Mobile, No-Code

### Aspire Microservice Starter Template (2024)
- URL: https://github.com/senrecep/Aspire
- Description: A template for creating a microservice with the Aspire Framework.
  Tags: .NET, Aspire, Microservices

### CSharpEssentials (2023)
- URL: https://github.com/senrecep/CSharpEssentials
- Description: Simplifies C# development by providing essential building blocks, including a framework for implementing common design patterns such as the Result Pattern, Any Pattern, and Maybe Pattern.
  Tags: C#, .NET, Design Patterns, Functional Programming

### Portfolio Template (2025)
- URL: https://github.com/senrecep/portfolio
- Description: A fast, SEO-optimized portfolio template with unlimited language support, dark/light themes, and fully customizable sections for any profession. Built with Next.js 15 and React 19. MIT licensed.
  Tags: Next.js, React, TypeScript, i18n, Open Source

### Career & Salary Comparison Simulator (2025)
- URL: https://salary-sim.senrecep.com/
- Description: Turkey's most comprehensive salary comparison simulator. Compare net income between SGK salaried employees (4/a) and Bağ-Kur self-employed (4/b). Gross/Net salary, tax, premium, employer cost calculations. 2026 TES Reform simulation, Young Entrepreneur support, Service Export exemption. Monthly/Yearly mode, TRY/USD currency support.
  Tags: JavaScript, Finance, Tax, SGK, Bağ-Kur

### QMS - Quality Management System (2024)
- URL: https://github.com/senrecep/qms
- Description: An enterprise-grade quality management system featuring two core modules: Document Management (DMS) with full revision history, two-stage approval workflows, targeted distribution, and tracked read confirmations; and Corrective Action Requests (CAR/DFI) with an 8-step ISO 9001 workflow, root cause analysis, corrective action tracking with teams and costs, and professional PDF reports. Includes real-time SSE notifications via Redis Pub/Sub, async email delivery through BullMQ with automated reminders and escalation, role-based access control, and a full audit trail. Built with Next.js 16, Bun, TypeScript, PostgreSQL (Drizzle ORM), and Redis.
  Tags: Next.js, TypeScript, PostgreSQL, Redis, BullMQ, Docker

## Blog Posts & Publications

### Stop Writing Code, Start Managing Systems: The Real Potential of AI-Powered Development (02/28/2026)
- URL: https://senrecep.com/en/blog/stop-writing-code-start-managing-systems
- Summary: Stop treating AI as an autocomplete and start thinking like a CTO. A comprehensive guide to Claude Code covering CLAUDE.md strategy, context management, hooks, custom agents, multi-agent orchestration, model routing, and self-learning systems.

### AI Coding Tools: The Complete Guide to Claude Code, OpenCode & Modern Development (01/24/2026)
- URL: https://senrecep.com/en/blog/ai-coding-tools-complete-guide
- Summary: From zero to production: Master AI-assisted development with the right tools. Learn Claude Code, OpenCode, oh-my-opencode, MCP, skills, and advanced techniques for professional development.

### Production-Grade AI Development with Claude Code: A Comprehensive Ecosystem Guide (01/21/2026)
- URL: https://senrecep.com/en/blog/production-grade-ai-development-claude-code
- Summary: Transform Claude Code from a simple Q&A tool into a professional-grade development environment with plugins, custom agents, skills, MCP servers, and hooks.

### Performance Analysis of Parameter Passing Methods in C# (02/20/2025)
- URL: https://senrecep.com/en/blog/performance-analysis-parameter-passing-csharp
- Summary: Deep dive into C# parameter passing: Comparing struct, class, record & ref types with benchmarks. Learn best practices for optimization.

### The Modern Way to Manage C# Business Rules: Rule Engine Pattern (02/04/2025)
- URL: https://senrecep.com/en/blog/modern-way-manage-csharp-business-rules
- Summary: A modern C# pattern for managing business rules that provides centralized control, high testability, and optimal performance through the Result Pattern

### Google Cloud Secret Manager Integration for Your .NET Applications (01/30/2025)
- URL: https://senrecep.com/en/blog/google-cloud-secret-manager-dotnet
- Summary: A .NET library for Google Cloud Secret Manager integration with features like prefix filtering, region-specific configuration, and JSON/raw secret support

### Blockchain Based E-Voting System (01/23/2022)
- URL: https://www.researchgate.net/publication/365993522_4_International_New_York_Academic_Research_Congress_Full-Text_Book
- Summary: This research proposes the development of a secure and fast online voting system using blockchain technology. This system not only offers low processing delay and high security level but also simplifies the verification of data integrity across multiple polling stations.

## Certificates & Credentials

- Dive Into Refactoring - Refactoring.Guru (Dec 2024)
  - Credential ID: #000053812
  - Credential URL: https://drive.google.com/file/d/1nkuUA7nszo4cnkOL3ZbMU5x7Bxlyjl8F/view?usp=sharing
- Pragmatic Clean Architecture - Milan Jovanovic Tech (Dec 2024)
  - Credential ID: cert_y7sc2384
  - Credential URL: https://drive.google.com/file/d/1ywBRKVFl-GlfeduOWuIe7M36ikBB0Qp2/view?usp=sharing
- Golang 101 - Mustafa Akgül Özgür Yazılım Kampı (Sep 2023)
- Centralized log management with Graylog - Mustafa Akgül Özgür Yazılım Kampı (Feb 2023)
- CCNA-1 - Mustafa Akgül Özgür Yazılım Kampı (Jan 2020)

## Pages

- [Portfolio](https://senrecep.com/en): Homepage with skills, projects, and blog posts
- [Resume](https://senrecep.com/en/resume): Full CV and work experience
- [CV PDF](https://senrecep.com/files/cv.pdf): Downloadable resume

## Contact Information

- Email: me@senrecep.com
- Phone: +905319649002
- Amateur Radio Callsign: TB1REC
- [LinkedIn](https://www.linkedin.com/in/senrecep/)
- [GitHub](https://github.com/senrecep)
- [Medium](https://medium.com/@senrecep)
- [X](https://x.com/senrecep0)