# Umut Şentürk — Backend Developer & Software Engineer

> Umut Şentürk is a backend developer and software engineer based in Edirne,
> Turkey. He specializes in Python (Django, FastAPI) and Node.js, building
> payment and shipment integrations, REST/SOAP APIs, and scalable e-commerce
> backends that process millions of orders per month. Currently Backend
> Developer at Akinon.

## Profile

- **Name:** Umut Şentürk
- **Role:** Backend Developer / Software Engineer
- **Location:** Edirne, Turkey
- **Website:** https://umutsenturk.com/
- **GitHub:** https://github.com/umutsenturk/
- **LinkedIn:** https://www.linkedin.com/in/umut-%C5%9Fent%C3%BCrk-a90444203/
- **Email:** umutsenturk22@gmail.com
- **Languages:** Turkish (native), English

## Skills

- **Programming languages:** Python, JavaScript, TypeScript, PHP, SQL
- **Backend:** Django, FastAPI, Node.js (Express.js), Celery, REST APIs, SOAP, JWT authentication, microservices
- **Frontend:** React, Solid.js, HTML, CSS, SASS
- **Databases:** PostgreSQL, MySQL, MongoDB
- **Cloud & DevOps:** AWS (EC2, S3, RDS), Google Cloud Platform, Docker, GNU/Linux (Arch, Debian, Red Hat based), Git, Nginx, Gunicorn
- **Domains:** Payment integrations, shipment/logistics integrations, e-commerce backends, web scraping & automation, high-scale event-driven and asynchronous systems

## Experience

### Akinon — Backend Developer (February 2024 – Present)
3rd-party payment and shipment integrations on a high-scale e-commerce platform.
- Built and maintained Django-based SOAP/REST payment integrations: MPGS (incl. Apple Pay), Cybersource (Authorize.Net), Unicredit, PayU, Masterpass, Moka, Mobilexpress (Lidio), Craftgate, NKolay, Netopia (Bitcoin).
- Supported Apple Pay, credit cards, Masterpass wallet, hosted payment pages, funds transfer, and cryptocurrency payments.
- Built shipment integrations with Sky Express, Carriyo and FarEye (order creation, tracking, webhook callbacks).
- Designed provider integrations as independent extensions/microservices; used Celery for asynchronous processing and webhook/IPN handling.
- Engineered flows resilient enough to process millions of e-commerce orders per month using idempotency, retries, timeouts and compensation logic.
- Acted as interim team lead; consistently achieved 140%+ of performance KPIs; collaborated with stakeholders across Europe and MENA.

### Boranka — Backend Developer (March 2023 – February 2024)
Products: Boranka Application Framework (BAF), PetekB2B, PetekCRM, Mergen.
- Designed a Google-like API versioning and scope-based authorization system with the CTO; built a custom JWT solution.
- Contributed to BAF and core modules of PetekB2B (dealer/sales management), PetekCRM (customer relationship management) and Mergen (international shipment management).
- Optimized PostgreSQL queries and schema migrations; applied ACID/transactional safeguards for data consistency.
- Extended Django with SASS and SolidJS (TypeScript): modals, auto-filled relational fields, tax/price auto-calculation, searchable dropdowns, drag-and-drop uploads.
- Mentored and onboarded new developers.

### PopularPicks.co — Freelance (project shelved by client)
Email newsletter system for the most popular news.
- Installed and maintained a Linux server; scheduled daily/weekly cronjobs.
- Integrated Gmail API (GCP) to fetch emails; built a Python BeautifulSoup4 parser; stored results in MySQL.
- Built an admin panel; integrated SendGrid (delivery) and SparkLoop (referrals/engagement).

### Freelancer (December 2020 – March 2023)
- Delivered 150+ successful projects for international clients (US, EU, MENA, Asia) with a consistent 5-star rating.
- Web scraping & automation with Selenium and BeautifulSoup4 (Amazon, Twitter, Google, Maps, Facebook).
- Designed and deployed APIs with Node.js (Express) and Python (FastAPI).
- Content/document automation (WordPress publishing; PDF, Word, Excel, CSV); Linux server administration; built a freelancer auto-bidder tool.

### Wiseback — Intern (July 2021 – November 2021)
- Built a web scraping system (Selenium, BeautifulSoup4).
- Created a FastAPI backend service to manage scraping scripts and expose data.
- Implemented JWT-based authentication/authorization; designed PostgreSQL models and schemas.

### Kırklareli University — Computer/Software Engineering Student (2016 – 2022)
- Final-year project: Student Affairs Information System for the Turkish Language Application and Research Center (10-person team).
- Backend exam/grade management with full CRUD; student-data import via national ID; built with PHP and SQL.

## Contact

For backend development, software engineering, payment/shipment integration or
freelance inquiries, reach Umut Şentürk at umutsenturk22@gmail.com or via
https://www.linkedin.com/in/umut-%C5%9Fent%C3%BCrk-a90444203/.