Tiagoperes

Senior AI Engineer

PwC

Mar 2026 - Present • 6 mos

Building an AI-enabled internal audit platform that accelerates the full audit lifecycle: risk sensing, audit planning, fieldwork, and audit reporting. The platform is built for accuracy and traceability over sensitive documents, with retrieval-grounded answers and the guardrails, evals, and observability a production AI system needs. Python and FastAPI services, a React frontend, PostgreSQL and Docker underneath, LangChain and LangGraph in the LLM and agent layer, running on Azure. Client work under NDA, so the detail here stays at the level of the system and my part in it.

Senior Full Stack Developer

Fiverr • Freiberufler

Jul 2024 - Present • 2 yrs 2 mos

Pro freelancer with 25+ completed orders, delivering full-stack and AI-enabled systems end to end. What clients come to me for: shipping the one AI feature that has been hard to crack, taken from prototype to production rather than a demo that fizzles after the call; production RAG and knowledge systems with retrieval, agents, tool-calling and evals over their own documents and tools; AI architecture, whether that means designing it right from the start, pressure-testing an approach, or getting a stalled build moving again; and MVP web apps and workflow automation when speed matters. Notable clients include Laiwyer, Lighttable, and Tecology, where I supported product delivery, architecture improvements, and production hardening. Stack: Python, FastAPI, Django, PostgreSQL, React, Next.js, LangChain and LangGraph, OpenAI and Azure OpenAI, AWS, GCP, Azure, Docker, and CI/CD. Clear scope and a fixed price before we start.

Software Engineer

Tiago Martins Peres

Mar 2014 - Present • 12 yrs 6 mos

I'm a builder who takes ideas to production without drama: launch-ready MVPs, workflow automation, and AI-enabled features with the guardrails and observability real systems need. Over 10+ years across startups, SMEs, and enterprises I turn ambiguous requirements into an actionable plan and deliver end to end, including deployment and handoff documentation. Common engagements: React and Python apps, RAG and tool-calling workflows over a client's own documents and tools, automation that improves reliability, and KPI dashboards. Clear scope, timeline, and price before anything starts. I read every brief myself and reply within one business day.