Hire the Best Code Refactoring Specialists in Istanbul, TR

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Serhat S.

Istanbul, Turkey

$50/hr
5.0
2 jobs

📌📌📌 "WHO" Am I? Hi, I am Serhat! I am a Sr. Software Developer, Project Architect, DevOps/System Engineer with 8 years of experience. I've worked at many enterprise companies as Software Developer and Software Architect for many years. Afterwards, I started to work as Freelancer to give enterprises a software/server support. Now, I am on Upwork to give best quality IT support to individuals and companies. 📌📌📌 "WHY" me? 💯Secure code development & deploying, 💯On-time delivery, 💯Documentation support, 💯Professional support while/after project 📌📌📌 "WHAT" can I do for you? 📂Linux server management & configurations & problem fixing 📂Integrate DevOps & DevSecOps tools 📂Develop secure, stabil and high performance Web Applications & Web APIs 📂Craete monolith or distrubuted software architectures 📂Create database architectres 📌📌📌 My Skills! 💻 Languages ✔C# ✔Python ✔HMTL5 & CSS3 ✔JavaScript ✔SQL ✔Bash & Shell 💻 Frameworks ✔.NET Core (dotnet core / ASP.NET Core) ✔Flask & Flask Restful ✔Django ✔jQuery ✔Wordpress ✔ELK Stack 💻 Databases ✔PosgreSQL ✔MSSQL (Microsoft SQL Server) ✔SQLite ✔MongoDB ✔Redis ✔ElasticSearch 💻 DevOps Tools ✔Docker / Docker Swarm / Kubernetes ✔Gitlab CI/CD ✔Jenkins ✔Ansible 💻 Infrastructure ✔OS: Alpine / Debian / Centos / Ubuntu ✔WEB SERVER: Nginx / Apache ✔BROKERS: RabbitMQ 💻 Clouds ✔Amazon Web Service (AWS) ✔Google Cloud ✔Digital Ocean ✔Cloudflare 💻 Project Management Tools & Metodologies ✔Git (Github/Gitlab/Bitbucket) ✔Agile Tools (Jira / Asana / Trello / Taiga) ✔Communication Tools (Slack / Discord) ✔Agile (Scrum / Kanban / Waterfall) ✔Pair Programming 💻 Development Metodologies & Architectures ✔Clean Code / Refactoring ✔Security Coding ✔SOLID Principles ✔DRY / KISS / YAGNI ✔DDD / TDD / Onion Architecture / Microservice Architecture

  • Amazon Web Services
  • Flask
  • Redis
  • JavaScript
  • Google Cloud Platform
  • Git
  • MongoDB
  • Django
  • Python
  • Docker
  • ELK Stack
  • PostgreSQL
  • Kubernetes
  • ASP.NET Core
Emir B.

Istanbul, Turkey

$75/hr
4.9
47 jobs

I’m Emir Borovac — a Senior Python Engineer & AI Specialist with deep experience in automation, reverse engineering, scraping, machine learning, and building high-performance backend systems. I've reverse-engineered platforms like Instagram, built AI data extraction pipelines, and created custom automation systems that save 40+ hours of manual work weekly. If you're looking for a results-driven, highly skilled developer who delivers on time — let’s connect! 🧰 𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 𝗣𝘆𝘁𝗵𝗼𝗻 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 ✔ Flask, FastAPI, Django, Celery ✔ Custom APIs, RESTful + GraphQL ✔ Backend Architecture & Scaling 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 & 𝗦𝗰𝗿𝗮𝗽𝗶𝗻𝗴 ✔ Selenium, Playwright, BeautifulSoup ✔ Headless browsers, CAPTCHA bypass ✔ Social media, legal & e-commerce data 𝗔𝗜, 𝗠𝗟 & 𝗗𝗮𝘁𝗮 𝗣𝗿𝗼𝗰𝗲𝘀𝘀𝗶𝗻𝗴 ✔ OpenAI, LLMs, LangChain, Transformers ✔ Image OCR + NLP for document parsing ✔ Scikit-learn, PyTorch, TensorFlow 𝗔𝗣𝗜 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀 ✔ Solana, Reddit, Instagram (reverse engineered) ✔ WordPress, Google Cloud, Firebase ✔ Payment & eCommerce APIs 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀 ✔ Docker, GitHub Actions, CI/CD ✔ AWS, GCP, Azure ✔ PostgreSQL, Redis, MongoDB 🧰 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝗜 𝗣𝗿𝗼𝘃𝗶𝗱𝗲 🐍 Python Engineering & Automation ✔ Custom automation scripts & bots ✔ Complex backend systems with Django / FastAPI / Flask ✔ Web & desktop app development using Tkinter, Electron.js ✔ Task scheduling with Celery & cron jobs ✔ Cross-platform Python tools with GUI 🧠 AI, Machine Learning & Data Science ✔ ML model development (classification, regression, clustering) ✔ Deep Learning (CNNs, LSTMs, RNNs) with PyTorch / TensorFlow / Keras ✔ NLP: Chatbots, summarizers, sentiment analysis, legal AI ✔ OpenAI / HuggingFace / LangChain / LLM pipelines ✔ AI for receipts, invoices, documents, OCR ✔ Generative AI: text-to-image, content creation ✔ AI Automation & multi-agent systems (LangChain, CrewAI) 🕷 Web Scraping & Reverse Engineering ✔ Scrapers for any website (eCommerce, Reddit, Instagram, TikTok, Facebook, legal sites) ✔ Bypass protections: Cloudflare, CAPTCHA, dynamic content ✔ Reverse engineering of web apps & APIs (media downloaders, geo-story extractors) ✔ Proxy rotation, user-agent spoofing, headless scraping ✔ Data parsing from PDF, HTML, JSON, XML, TXT 🌐 API Design, Integration & Custom Backends ✔ RESTful & GraphQL APIs ✔ Authentication systems (OAuth2, JWT) ✔ Real-time APIs with WebSocket ✔ Integration with third-party APIs: WordPress, Google Cloud, Solana, OpenAI ✔ Custom plugin development (e.g. WordPress auto-publishing) 💻 Full Stack Web Development ✔ Django + React / Vue / Next.js web applications ✔ Responsive frontend using Tailwind, Bootstrap, HTML5, JS ✔ Flutter for cross-platform mobile apps ✔ Admin dashboards, CRMs, internal tools ✔ Pagination, authentication, charts & real-time updates ☁️ DevOps & Deployment ✔ Dockerized environments ✔ CI/CD with GitHub Actions, GitLab, Jenkins ✔ Kubernetes for microservices ✔ Serverless functions (AWS Lambda, Firebase) ✔ App deployment to AWS, Heroku, GCP, Azure ✔ Nginx, Gunicorn, Apache server configuration 📊 Data Analytics & Visualization ✔ Data wrangling with Pandas & NumPy ✔ Visual reports using Matplotlib, Seaborn, Plotly ✔ Database design: PostgreSQL, MySQL, SQLite, Redis ✔ Google Sheets automation ✔ Structured data transformation & cleaning 🎯 Extra Services You Might Need ✔ Code refactoring, optimization & cleanup ✔ Debugging and performance tuning ✔ Technical documentation writing ✔ Project planning, architecture design ✔ Technical mentoring / code review ✔ Legacy code migration / modernization ✔ Freelance team collaboration ✅ Why Work with Me? ✔ 100% Job Success – Clients trust me to deliver on time with high-quality results. ✔ Automation & AI Focused – I specialize in reducing manual work and boosting efficiency. ✔ Problem-Solving Mindset – I love reverse engineering, debugging, and optimizing systems. ✔ Reliable & Responsive – You’ll get clear communication, fast iterations, and flexible solutions. ✔ Security & Best Practices – I prioritize performance, maintainability, and secure coding standards. 💻 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗪𝗲𝗯 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 ✔ Django, FastAPI, Flask, Node.js & Express backends ✔ React, Vue, Next.js with Tailwind & Bootstrap ✔ Full-featured apps: dashboards, CRMs, APIs, Auth, Realtime UI ✔ Cross-platform desktop apps using Electron.js + backend logic I am looking forward to hear back from you! 🎯

  • Python
  • API
  • Web Scraping
  • Automation
  • ML Automation
  • AI App Development
  • Machine Learning Model
  • Data Manipulation Language
  • Data Analysis
Enes D.

Istanbul, Turkey

$12/hr
5.0
1 jobs

💻 Software Developer | Python • C • HTML/CSS • JavaScript Hi! I'm a detail-oriented and reliable software developer with hands-on experience in: - Python scripting and automation - C programming for performance-critical tasks - Responsive website development with HTML/CSS - Interactive features with modern JavaScript - Game Develop and bug fixing I specialize in small to medium-sized projects like: - Custom scripts and automation tools - Bug fixing and code cleanup - Static websites and landing pages - Small frontend apps or UI enhancements - Code conversions (e.g., from C to Python, etc.) What you can expect: ✔️ Clean and well-documented code ✔️ Fast communication and clear updates ✔️ 100% commitment to meeting deadlines Let’s bring your idea to life – efficiently and affordably! I can help.

  • Python Script
  • Web Scraping
  • Automation
  • Data Cleaning
  • Web Development
  • Game Development
  • C
  • HTML5
  • CSS 3
  • Responsive Design
  • JavaScript
  • Bug Fix
  • Game Development Bug Fix
  • Game Mechanics
Hamza K.

Istanbul, Turkey

$12/hr
5.0
5 jobs

𝐈'𝐦 𝐇𝐚𝐦𝐳𝐚 — a B2B Automation Engineer, Unity 3D Mobile Game Developer (C#) & QA Specialist with an engineering mindset. I don't just complete tasks; I build robust Python scripts, architect technical game prototypes, and bulletproof your software's user experience. I don't just "freelance" — I take full ownership of your product's code, your data pipelines, and your peace of mind. 📋 𝐇𝐞𝐫𝐞'𝐬 𝐄𝐱𝐚𝐜𝐭𝐥𝐲 𝐖𝐡𝐚𝐭 𝐈 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 𝐅𝐨𝐫 𝐘𝐨𝐮: 🎮 Unity 3D Mobile Game Development (C#) ✅ Technical Game Design: Engineering playable 3D prototypes from scratch in Unity using C# ✅ Core Mechanic Development: Building character controllers, physics-based interactions, and UI systems ✅ Optimization & C# Scripting: Debugging code, refactoring scripts, and optimizing games for mobile performance ✅ Asset Integration & Technical Art: Balancing Level Design in Unity with technical coding requirements 🕵️‍♂️ QA Engineering & Testing ✅ Rigorous Exploratory Testing: Identifying critical edge cases and "hidden" bugs before production ✅ Android/iOS & Web QA: Comprehensive layout audit, database input validation, and API endpoint verification ✅ Game QA & Technical Audits: Frame-rate scaling, device-specific scaling issues, and mechanic deconstruction ✅ Engineer-Friendly Reports: Step-by-step reproduction guides, full logs, and video briefs (Check my portfolio section) 🤖 Web Scraping & Data Automation (Python) ✅ Custom Scrapers for Dynamic Sites: Playwright, BeautifulSoup, and Selenium for e-commerce, real estate, and directories ✅ Data Pipelines & Verified B2B Lead Gen: Cleaning bounce rates to under 3% and formatting data for CRMs ✅ Automated Scheduled Extraction: Scheduled bots that bypass detection and deliver clean JSON/Google Sheets ✅ Competitive Intelligence: Extracting market and competitor data for structured, high-level analysis ⚡ Real Results Delivered: → 100k+ dynamic data points scraped, cleaned, and structured for B2B outreach → 100% autonomous execution of QA audits for mobile apps, stopping critical UI leaks before release → Unity 3D prototypes engineered from idea to playable C# builds within days → Zero-error CRM data migrations and automated database list cleaning 🔧 Tools I Work With Daily: Unity (C#) · Python · Playwright · BeautifulSoup · Selenium · Excel · Google Sheets · Airtable · SmartLead · Apollo · LinkedIn Sales Navigator · Jira · ClickUp 🌟 What Sets Me Apart: I respond within 1–2 hours. I communicate before problems happen, not after. I think like a Software Engineer and execute with a QA tester's precision. Micromanagement is not required — you give me the technical goal, I deliver it optimized, clean, and exactly how you need it. No excuses. No disappearing acts. Available 30+ hours per week. Consistent daily overlap with US Eastern and European time zones. If your game mechanics are clunky, your code is a mess, your data scrapers are broken, or your app's UI is overflowing let's engineer a solution. Send me a message. I'll reply within a couple of hours with a clear, engineering led plan.

  • Unity
  • Python
  • C#
  • Software
  • Flutter
  • Google Play
  • Data Analysis
  • .NET Core
  • .NET Framework
  • Angular
  • React

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