Hire the Best C# Developers & Programmers
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I build practical Python tools that automate repetitive work, extract and transform data, and connect systems through APIs. 🐍⚙️ My focus is simple: if a process is manual, repetitive, or data-heavy, I turn it into a reliable script, desktop tool, backend service, or automated workflow. 🚀 Core services: • Web scraping and data extraction 🌐, including dynamic and protected websites • Python automation ⚙️ for files, Excel, browser tasks, reporting, and internal workflows • API integrations and backend tools 🔗 using FastAPI and Flask • AI-powered workflows 🤖 for text processing, translation, content transformation, and structured data • Data cleaning and conversion 📊 across CSV, JSON, Excel, SQL, and external APIs • Custom Python utilities 🧰 for practical business operations Tech stack: Python, FastAPI, Flask 🐍 Playwright, Selenium, Scrapy, BeautifulSoup, Requests 🕷️ OpenAI and other AI APIs 🤖 PostgreSQL, MySQL, SQLite 🗄️ Pandas, openpyxl, schedulers, and automation tools ⚙️ HTML, CSS, JavaScript, and TypeScript 🎨 How I work: • Clear scope and practical architecture 🧠 • Clean, maintainable code 🧼 • Honest communication and realistic estimates 💬 • No unnecessary complexity 🚫 • Focus on reliability, privacy, and real-world use 🔒 For projects initiated through Upwork, communication and contracting remain on Upwork. ✅

I’m a backend-focused developer who builds and fixes web applications, APIs, and automation scripts. If your project is stuck, broken, or missing functionality, I can help you get it working quickly and reliably. What I can help you with: • Fixing bugs and debugging backend logic • Building and improving REST APIs (Node.js, Python) • Creating simple, clean web applications • Automating tasks and writing scripts • Integrating external services and APIs I have hands-on experience with systems programming (C/C++), backend development, and real-world projects including a microservices system, a Slack automation bot, and low-level applications like a Unix shell and a raycasting engine. I focus on clear communication, fast turnaround, and delivering working solutions — not just code. If you need someone who can understand your problem and solve it without wasting time, feel free to reach out.

I build production-ready web applications and real-time systems end-to-end, from architecture to deployment. I’ve developed platforms with real-time chat, secure voting systems, and AI-powered pipelines, focusing on performance, scalability, and clean backend design. I focus on building reliable systems that are easy to maintain and ready for real-world use, not just prototypes.

I'm Costel, a seasoned Expert Full-Stack Developer with 20 years of experience and a Master’s in Computer Science, specializing in Custom Web Applications and WordPress. My expertise encompasses a broad range of solutions, including bespoke web applications, CMS, ERP systems, API development & integrations, e-commerce, as well as comprehensive WordPress front-end and back-end services. My approach prioritizes quality, performance, and scalability, ensuring each project not only meets but exceeds expectations. My expertise includes: - Custom web applications using Laravel, PHP/MySQL/HTML/CSS/JS (I've developed tens of custom complex systems eg: order management systems, production planning/tracking, invoicing, inventory management, email marketing solutions, job listings, medical platforms, web portals, etc.) - CMS / ERP systems - API development & integrations - WordPress bespoke themes, plugins, customizations - WooCommerce & Prestashop e-commerce solutions - Websites speed optimizations I ensure lightweight, robust solutions, optimized for speed and SEO, tailored to drive results and conversions. My commitment is reflected in my Upwork success, with a record of high ratings and client satisfaction, representing a recent yet significant part of my extensive career. What sets me apart? - Exceptional communication, projects/task understanding, always bringing innovative ideas and solutions - High-quality delivery, minimizing revisions and bugs - Reliability in meeting deadlines, with a well-organized approach - Passion and dedication to every project, ensuring 100% commitment - Agility and flexibility, adapting to the dynamic nature of software projects I’m here to make sure your project thrives, countering the industry’s trend of delays and budget overruns. Partner with me for a seamless, successful development experience.

Hi! 👋 I'm George and I’ve been maintaining a daily development practice for 4+ years, rapidly iterating on gameplay systems and shipping projects under tight timelines. I’ve released multiple projects and built a lot of prototypes from scratch, often taking ideas from concept to builds in days rather than months. What we can do together 🌟 🔬 Rapid prototypes (test gameplay ideas quickly) 📲 Playable demos for pitching/investors 🍰 Vertical slices for onboarding & playtesting 🎮 Full game development through release If you want reliable gameplay results instead of endless planning, message me and we’ll build a playable first version. I usually show results within the first few hours of development.

If you need a custom app built from scratch — or you’re stuck with a half-finished codebase from a previous developer — I can help you move it forward without unnecessary rewrites. I’m Adrian, founder of Peer Concept, a small software development team. Clients work directly with me, and I bring in my team when the project needs extra frontend, backend, DevOps, QA, or UI/UX capacity. Most of our work comes from two situations: - founders building a product from zero - teams stuck with an unfinished or messy app that needs to move forward What we build and fix: - custom web applications using React, Next.js, Angular, Node.js, Django, FastAPI, and .NET - mobile apps with React Native - REST APIs and third-party integrations: payments, CRMs, internal tools, external platforms - AI features using OpenAI, Claude, LLM APIs, automation workflows, and custom AI tools - existing app takeovers — we read the code, understand the system, and continue development - end-to-end delivery: scope → build → deploy → maintain Relevant examples: - AuctionForecast — took over a data-heavy wine auction platform after multiple developers and continued development without a rewrite - Firefly — built an AI compliance monitoring system that analyzes customer communications and risk signals - DrForms — developed an AI medical documentation app that turns doctor-patient audio into structured reports - MyKidsTales — built an AI storytelling platform with personalized story generation - Blue Mountain Loans — built a consumer lending platform with application, e-signature, direct deposit, payment-processing, and risk-scoring API integrations Recent client feedback: “Adrian did a great job on our loan platform. We had multiple API integrations and a complex flow, and he handled everything smoothly.” We don’t take every project. But when we do, we focus on clear communication, stable delivery, and shipping working software. Send me a short description of what you’re building or trying to fix, and I’ll tell you within 24 hours if we’re a good fit.