Post a Job Free
18 viewsjobseeker
Alexander T. — Senior Full-Stack Software Engineer from Argentina

Alexander T.

Senior Full-Stack Software Engineer

Argentina 3-6 years
Open to offersNew to Platform
Languages
SpanishEnglish
Video Introduction
No video introduction yet
The candidate has not added a video.
Contact information and social networks are private. Connect to unlock.
Hidden

About

Alexander T. is a seasoned Full-Stack Software Engineer and AI Integration Specialist with over five years in software development and more than two years focusing on architecting production-grade AI systems. Based in Argentina, he is open to remote work with US and international teams. He specializes in designing and deploying solutions powered by large language models, such as RAG pipelines and chatbots integrated with platforms like WhatsApp, built on .NET and Python backends. His professional experience includes leading development for an enterprise utility management system serving thousands of users at Excelencia Digital Software. In addition to his enterprise engagements, Alexander has worked as a freelance developer, delivering over 15 production applications, contributing to the gaming industry, and optimizing SQL Server databases for improved latency. His technical proficiency extends to backend architecture with C# .NET, frontend technologies such as Vue.js and Angular, and handling databases like PostgreSQL and MongoDB. He is adept at deploying complex solutions in Docker environments and has engineered real-time operational modules for enhanced system responsiveness.

Experience

  • Full-Stack Engineer & AI Developer

    Excelencia Digital Software — DECSA · 2024 — Present
    Served as the lead developer for an enterprise system focused on electrical utility management. Designed and implemented production RAG architectures utilizing LangChain and LangGraph with the Qdrant vector database. Integrated LLM agents into transactional workflows connected to the WhatsApp Business API to automate end-user interactions. Developed real-time operations modules using SignalR for mass complaint management and on-call technical guard tracking. Created geospatial analysis features employing PostGIS for infrastructure asset visualization and network management. Architected scalable backend services in C# .NET, deploying via Docker on hybrid Linux/Windows Server environments. Developed cross-platform web and mobile interfaces using Vue.js and Capacitor. Managed a varied data infrastructure consisting of PostgreSQL, SQL Server, MongoDB, and Redis.

  • Freelance Full-Stack Engineer & AI Developer

    Upwork · 2020 — Present
    Delivered over 15 production-ready applications leveraging .NET Core, C#, and Angular/Vue.js, with an emphasis on scalable SaaS architectures. Designed RAG pipelines and orchestrated LLM API for automated data extraction and AI-powered functionalities. Optimized SQL Server databases, achieving significant reductions in critical query latency. Managed Docker deployments for client production systems in both Linux and Windows environments. Contributed to a multiplayer title successfully launched on platforms such as Steam, Google Play, and the App Store, with real-time multiplayer features implemented using Photon Fusion for over 100 concurrent users. Integrated in-app purchases with Google and Apple payment APIs and enabled cross-platform cloud save functionality. Executed A/B testing and analytics frameworks that led to improvements in ad revenue and user retention.

Skills & Expertise

AI and Data ScienceGerman (Fluent)AI EngineerFull Stack DeveloperSupercreator

Education

  • Higher Technical Degree in Software Development
    IES Normal Superior General Manuel Belgrano · — — 2025