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Daniel Atoche

@danielatoche

Senior backend engineer building reliable Python/FastAPI and AI/LLM powered systems with structured outputs and dependable workflows.

Peru

Message

What I'm looking for

I’m looking for a role where I can build production-grade FastAPI/Python backends and ship LLM/agentic workflows with validation, state management, and reliability—working with strong engineering practices, clear ownership, and measurable outcomes.

I’m a Senior Backend Engineer with 5+ years building Python backend systems, APIs, automation workflows, and internal tools across AI-enabled products, cybersecurity, enterprise environments, and education. I specialize in FastAPI, asynchronous programming, API design, testing, clean architecture, and integrating reliable external services.

In my recent work, I’ve applied this backend foundation to LLM-powered systems—focusing on structured outputs, validation layers, tool-based/agentic workflows, state management, and execution flows that are dependable in production. I bring a strong emphasis on reliability: idempotency, error recovery, fallback handling, and observability.

As Founder & Lead Backend Developer for DiagNotes, I’ve designed layered backend services for an AI-powered desktop application, leading architecture decisions around boundaries, transaction ownership, async processing, and failure recovery. Previously, I built AI-assisted agentic workflow systems for legal operations (Google APIs + Telegram) and developed cybersecurity-focused LLM integrations using FastAPI and async REST APIs.

Experience

Work history, roles, and key accomplishments

Current

Founder & Lead Backend Engineer

Current

DiagNotes

Jul 2024 - Present (2 years)

Designed and built backend services for an AI-powered desktop application for medical interpreters using FastAPI, PostgreSQL, and layered asynchronous architecture. Implemented authentication, billing/subscriptions, structured LLM workflows with validation layers, and reliable external-provider integrations with idempotency and observability.

fastAPI PostgreSQL AsyncIO Pydantic Observability

AI Backend Engineer (Agentic Workflow)

Laude Consulting

Dec 2025 - Apr 2026 (4 months)

Designed and implemented an AI-assisted agentic workflow system for legal operations, automating case tracking, deadlines, notifications, and coordination. Built structured, validated LLM agent workflows with state management in PostgreSQL and integrated Google APIs and Telegram for scheduling and human-in-the-loop review.

LangGraph PydanticAI LLM Integrations Validation AI Agentic Workflow

Senior Python Developer

EnCrypt

May 2023 - Jul 2024 (1 year 2 months)

Developed FastAPI-based asynchronous backend services integrating LLMs into social-engineering threat detection and automated response systems. Built LangChain workflows for threat classification and analysis pipelines, improving reliability through robust error handling, SQL-backed data flows, and Dockerized deployments.

fastAPI LLMs (LangChain Threat Analysis SQL Docker Error Handling CI CD

Python and Java Instructor

Elev8 Education

Jul 2023 - Dec 2023 (5 months)

Prepared 200+ students for international Python certification exams by teaching practical backend programming, debugging, algorithms, and clean code practices. Delivered structured instruction focused on writing maintainable, well-tested Python solutions.

Python Java Debugging Algorithms Clean Code Teaching

Junior Python Developer

Intel

Mar 2022 - Mar 2023 (1 year)

Built Python and Pandas automation tools for internal hardware validation, reducing manual QA effort and improving reporting workflows. Developed data ingestion scripts and REST APIs to power internal dashboards for manufacturing metrics.

Python Pandas REST APIs Data Ingestion QA Automation SQL API Integration Debugging

Discrete Mathematics Professor

Instituto Tecnologico de Costa Rica

Jul 2021 - Jul 2022 (1 year)

Instructed 100+ students in set theory, logic, combinatorics, and graph theory to strengthen analytical reasoning and algorithmic thinking. Designed learning activities that emphasized problem-solving and rigorous mathematical foundations.

Set Theory Logical Graph Theory Problem Solving Algorithmic Thinking Teaching Analytical Thinking Analytical Rigor

Junior Python Developer

TecService - Logixsoft

Jan 2020 - Jul 2021 (1 year 6 months)

Developed backend components using Python, Django, FastAPI, and SQL Server, including APIs and improvements to deployment workflows. Wrote unit and integration tests to ensure backend correctness and reliability.

Python Django fastAPI SQL Server API Development Unit Testing Integration Testing Code Quality