Passionate about coding and problem solving, possessing over 10 years of experience & proven success in Technical Support and Customer Service, with a strong ability to deliver efficient user focused solutions. Alongside extensive experience in AIR/Flex apps development and its different frameworks which allow me to produce cross platforms applications. I also have worked with several APIs & ANEs. I also have a good experience in FFmpeg which is the magic to edit and manipulate media files. I have a good experience and practices with timeline animation and tweens with Adobe Animate / Flash also some good practices with frame by frame animation and export it as swf or HTML5 canvas. I have gained this experience during the past 9 years since I had made and participated in several Adobe Air projects mostly were games, puzzles, educational, images & video processing and some utilities apps.

I have more than 14 years of experience in software development. Used technologies are Adobe RIA (Flex|Flash|ActionScript 3.0|AIR|Mobile Platform Android and iOS) and Streaming Server (FMS|Red 5|Wowza). From my previous IT experience we can found next technologies J2EE, PHP, HTML, JavaScript, VBScript, Pascal, Delphi, C/C++, C++Builder, FoxPro, Assembler, RDBMS (MySQL|MSSQL|Informix|Firebird|Interbase|SQLite), WebServers (JRun|JBoss|Tomcat|Apache), CMS(Joomla|Wordpress|Drupal|Alfresco|Sitefinity), OS(Linux|Windows). Angular, NodeJs, MongoDB

As a software developer since 2005, I've worked across various professional fields, including: • E-commerce and AI API integrations • Multimedia, rich user interfaces and game development • Web development: frontend, backend and middleware • Databases and CRM solutions • Accounting and real estate industry solutions • Interactive mapping, navigation and weather services

5+ years experience - HTML5, PHP, MySQL, JavaScript, VBA for Excel, ActionScript, Air, Flash, Flex, Delphi. Converting different applications from FLASH to HTML5/canvas. Create VBA macros for Excel. Creating usable web application development PHP, MySQL.

AFX Animation is one of the top online animation provider and completed over 2500 animation videos with almost every popular style of animation for the clients all over the World. We are specialized in all types of animation both in 2D and 3D format. We are FAST, Reliable, and Affordable. We always like to go for a long term association with all our clients. We work for 24X7 and available on Skype round the clock. We may work under tight deadlines.

Are you looking for a professional software developer who can solve unsolved tasks, is highly organized, and has deep knowledge and experience developing optimized and robust code? I'm an experienced and dedicated professional with over 16 years of experience in designing, developing, implementing, and supporting software solutions. My aim is to create fast, lightweight, and highly optimized solutions that perform well with minimal use of system resources. My favorite kind of work is solving unsolvable problems. My main skills are fast learning and ongoing professional development. Last two years I made mostly cross-platform desktop/mobile applications on the Qt framework using C++, QML, and CMake. Difficult unsolvable problems are my favorite job. And I am sure that my experience, knowledge, and enthusiasm will help to solve any of your problems.

I have more than 9 years of experience in the field of Software Development. I have been consistently rewarded for hard work with promotions and increased responsibilities. These rewards are a direct result of my expertise in Software Development, my commitment to personal and professional excellence, and my excellent written and oral communication skills.

Thanks for stopping by. My name is Oscar Polanco, a full-time freelance graphic, web designer, and programmer with over 20 years of experience under my belt. I’m passionate about helping my clients bring their visions to life through print and digital designs. I really believe that design can only be original and relevant if it finds inspiration from the conditions and circumstances in which it is required. That's why I work with people rather than just for them. I work efficiently and meticulously because I know our clients want effective and flawless designs in a timely manner. I have extensive experience in print and web design, including: Website • Flyers • Branding • Brochures • Posters • Magazines • Packaging • Infographics • & more As a Freelancer: I’m communicative, detail-oriented, organized, energetic, and self-motivated. My client's satisfaction is my #1 priority. I won’t stop until you’re totally satisfied. (Seriously, take a quick look at my feedback from my other clients). Want to work together? I’d love to collaborate with you. Reach out and let’s get started!

👋 Hi, I’m Oleksii - a Twilio expert with over 7 years of hands-on experience building scalable, real-time communication systems using the full Twilio stack: 📞 Programmable Voice / SMS, 🧠 TaskRouter & Flex, 🎛️ Studio, Functions, Conversations, Sync, Webhooks and more. I’ve successfully completed 120+ Twilio projects on Upwork, including: • Eliminating latency issues in phone calls 🔧 • Creating SMS marketing automation pipelines 📲 • Developing full-scale Flex dashboards with custom workflows 🧩 Clients describe me as: “Very skilled, excellent communicator, smart guy and a pleasure to deal with.” “Oleksii was very helpful and available :) We no longer have problems with latency during our phone calls.” 🛠 Whether you need help with: • Twilio Studio call flows • Complex webhook-based automation • TwiML, IVR, call forwarding setups • Integrating Twilio with CRMs or internal systems • Building voice/SMS logic in Node.js, Laravel, or Firebase environments …I’ve got you covered. Let’s bring your Twilio-powered solution to life 🚀 Feel free to invite me to your job or message me with questions.

If you are looking for a developer who can take complete technical ownership of your system—from database architecture to secure AI integration—I am here to help. I specialize in building multi-tenant SaaS platforms, modernizing backend codebases, and safely integrating AI/LLM agents into existing databases. On Upwork, my business is built on long-term trust. My average client relationship lasts 2 to 4 years because I focus on writing clean, scalable code that reduces your API bills and technical debt. --- ### 🚀 RECENT HIGH-IMPACT DELIVERABLES 1. Secure Text-to-SQL AI Assistant - Built a secure Text-to-SQL query generation engine using LangChain Expression Language (LCEL) and PyMySQL deployed on AWS Lambda. - Hardened security by implementing dynamic query parsing to prevent SQL injection and cross-tenant data leaks. - Synchronized AI logic with enterprise backend constants (Java constants for open/closed invoices, freight logic, and cost analysis). 2. SaaS Architecture & Multi-Tenancy - Refactored a monolithic backend into a multi-tenant SaaS platform with shared-database partitioning. - Implemented dynamic host/subdomain routing middleware using AsyncLocalStorage for thread-scoped tenant isolation. - Built dynamic frontend branding injection systems and administrative super-consoles. 3. Resilient API & Batch Processing Pipelines - Engineered a local OCR (Tesseract) + Groq LLM pipeline to process thousands of book pages, bypassing expensive cloud APIs. - Built rate-limiting guardrails (TPM/RPM pacing) and a stateful auto-resume CSV engine to prevent data loss on API crashes. - Integrated eBay SDK & Polk SOAP APIs with self-healing OAuth token renewal loops. --- ### 🛠️ TECHNICAL MATRIX - Languages: Java (Spring Boot 3, Hibernate), C#/.NET, Kotlin, Node.js, Python - AI/Data: LangChain (LCEL), OpenAI/Gemini APIs, PyMySQL, Vector DBs, Elasticsearch - Frontend: React (Redux, Vite), Vue.js, WPF/XAML, Bootstrap 5 (RTL layout) - Cloud & DevOps: AWS (Lambda, S3, EC2, SQS), Docker, CI/CD, Nginx reverse proxy --- If you have a complex system that needs stabilization, or a database you want to supercharge with safe, production-ready AI tools, click the "Invite" button to start a conversation.