André Müller Andre Muller Software Engineer muller.a.a@pm.me https://aamuller.com Earth / Remote https://github.com/aamuller https://www.linkedin.com/in/aamuller

I'm a software engineer at 800.com, where I work on telecommunications software for voice, SMS, phone numbers, APIs, voice AI agents, and customer-facing web products. Before that, I worked at A2 Hosting, building software for hosting infrastructure, customer support, billing, and web products. I also co-founded Dayback, where I worked on software for renewable-energy systems. I started with programming, studied information systems, and later earned a master's degree in mechatronics from IFSC, where my research involved simulation, controls, and software for mechatronic systems.

Web and mobile applications with clear product value Cloud services that connect products, providers, and operations APIs and integrations between complex providers Automations that reduce cost, remove manual work, or make teams faster Telecom and messaging systems Voice AI agents and conversational, AI based workflows Embedded and edge software when the problem touches hardware 800.com

Building and maintaining telecom software across voice, SMS, phone number inventory, XML-based voice APIs, WebRTC, SIP, voice agent workflows, APIs, product features, and customer-facing web applications.

Created telecom features that let customers use cloud-hosted custom numbers Worked with XML-based voice APIs, WebRTC, SIP, and voice agent workflows Worked with multiple telecom providers and their APIs Built APIs and integrations around telecom capabilities Developed marketing web experiences that supported customer growth javascript typescript node.js react voice sms webrtc sip voice agents llm apis apis telecom A2 Hosting

Worked on hosting infrastructure, billing, customer support tooling, developer environments, and marketing websites.

javascript php node.js react hosting billing support tooling web Dayback

Led software and product development for renewable-energy products, including photovoltaic forecasting, microgrid systems, industrial hardware, and hybrid wind/solar concepts. Participated in Shark Tank Brazil and helped attract awards, investment, and partnerships.

energy mobile embedded forecasting SENAI Institute of Technology

Managed and built R&D projects in automation, industrial systems, energy efficiency, remote labs, SCADA/LabVIEW systems, and applied technology consulting.

automation r&d scada labview Master's Degree in Mechatronics, IFSC Bachelor's Degree in Mechatronic Engineering, IFSC Technologist in Industrial Mechatronics, IFSC Information Systems Technician, CEFET/SC Research topics included modeling and co-simulation for mechatronic systems, robot design, controls, servo drives, embedded software, and hardware and software design for data acquisition systems. JavaScript TypeScript Node.js React PHP Python Web applications Mobile applications REST APIs GraphQL API design Cloud services AWS Docker Linux Git CI/CD PostgreSQL MySQL Telecom software VoIP Voice AI agents Conversational AI LLM APIs Claude API OpenAI API Prompt engineering WebRTC SIP SMS XML voice APIs Internal tools Platform engineering Test automation Unit testing Integration testing End-to-end testing QA engineering Playwright Jest Embedded software Mechatronics Controls Data acquisition systems