b
billuyar

Bilal U.

@billuyar

Senior Dot NET, SQL Server and Python Developer

Turquie
Anglais, Turc
Certaines informations sont présentées en anglais.
À propos de moi
Senior software developer with 12+ years of building business software end to end, from requirements and database design to deployment and support. Core strengths: SQL Server (T-SQL, stored procedures, query tuning, reporting), C# / ASP.NET Core back ends and APIs, and Python for data processing and automation. How I can help: - Slow SQL queries, reports and database design - .NET APIs, web and desktop apps (WPF, WinForms) - Python scripts, data pipelines and automation - ERP and e-commerce integrations (payments, shipping, e-invoicing) Clear communication in English and Turkish.... Plus d’infos

Compétences

b
billuyar
Bilal U.
hors ligne • 

Voir mes services

Prestashop
I will build prestashop store and integrate payment, shipping and ai chatbot
De150 $US / projetPlus de détails
Développement des bases de données
I will fix slow sql server queries, write tsql and build c sharp dotnet apps
De60 $US / projetPlus de détails

Portfolio

Expérience professionnelle

Self-Employed_/ Freelancer

Self-Employed / Freelancer

Freelance • 4 yrs 5 mos

Freelance Software Developer

Mar 2026 - Oct 2026 • 7 mos

Built and launched an online store on PrestaShop 9 (PHP, MariaDB, Docker) with a mobile-responsive layout for an e-commerce client. - Integration modules that automate the order flow from checkout to invoice: online card payments, carrier shipping (shipment creation, labels, tracking, returns) and accounting with Turkish e-invoicing - Profit and pricing calculator, bulk product import and stock synchronization - Python tools that export supplier catalogs to Excel and generate bulk product, category and image import files

Independent Software Developer

Apr 2022 - Feb 2026 • 3 yrs 10 mos

Designed, built and ran self-funded software products. - Technical-analysis and trade-signal platform for market price data: Python calculation engines, Flask REST API, SQL Server, Linux / systemd, push notifications - Framework for line-of-business web apps: React / TypeScript front end and ASP.NET Core (.NET 10) back end on SQL Server, shipped as reusable npm and NuGet packages - Since 2025, AI-assisted development with Claude Code, Codex and Gemini CLI across design, coding, review and deployment

Confidential

Senior Software Developer

Confidential • Temps plein

Sep 2012 - Mar 2022 • 9 yrs 6 mos

Delivered enterprise software at a software consultancy for clients in agriculture, shipbuilding, telecommunications and construction: ERP-integrated desktop apps, web apps and REST services. - Seedling production ERP for two of Antalya's leading seedling producers: order intake, sowing plans, grafting, greenhouse capacity, stock and invoicing, with business logic and all reports in T-SQL (C#, WPF, SQL Server) - Cost-accounting system for a multinational young-plant producer: multi-stage T-SQL cost-allocation engine and 15+ reports (C#, WPF, Entity Framework 6) - Dealer sales and activation system for a national mobile operator, an Android warehouse app with a WCF service, and an ASP.NET purchasing and approval platform - Work-in-progress reporting per ship project for a multinational shipbuilder - Owned each project across the full SDLC, working directly with client stakeholders