FR.

Argentina · Open to remote opportunities worldwide · Full-time or contractor

Francisco Roldán

Senior Python Engineer & Technical Lead

I build Python-based enterprise software, design backend integrations, and lead development teams from requirements to delivery.

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Languages

Spanish: Native · English: Intermediate

13+ years of experienceDIAMO · Co-founder since 2013Frappe / ERPNext

About

Hands-on engineering. Technical leadership.

Co-founder and partner at DIAMO since 2013, with 13+ years in software development. I translate complex business requirements into backend systems, accounting workflows, and practical software solutions.

My work combines Python development and architecture with team leadership, project planning, and coordination with clients. I stay involved from technical decisions through deployment and ongoing support.

  • Python & backend architecture
  • Team leadership & project delivery
  • ERP systems & business workflows

Projects

Selected engineering work

Featured project · Python / Frappe / ARCA

Argentina localization for ERPNext

Challenge

Adapt ERPNext to Argentine accounting and tax requirements, integrating local invoicing, tax calculations, and reporting into ERP workflows.

My contribution

Developed the comprehensive Argentina localization for DiamoERP, including electronic invoicing, tax customizations, and fiscal reports.

Implementation

  • ARCA electronic invoicing integrated with ERPNext.
  • Tax perceptions and withholdings for local business workflows.
  • VAT reporting and customizations for Argentine accounting requirements.

Python · Frappe · OAuth

MercadoLibre integration & event broker

Developed the MercadoLibre integration and event broker with centralized OAuth authorization, token lifecycle management, durable webhook processing, and signed event delivery to ERP sites.

Python · REST APIs

DiamoERP platform development

Built shared platform capabilities for site configuration, user and API access management, subscription limits, and usage tracking.

Python · Flow · LLMs

AI integration for ERP operations

Integrated Flow assistants and purchasing tools with per-site model configuration, access controls, token-based metering, and credit management.

Open source

Building with Frappe. Contributing upstream.

Alongside custom application development, I contribute fixes and features to the Frappe ecosystem. My merged pull requests date back to 2017.

View all Frappe pull requests

Technical focus

Backend

Python, REST APIs, multi-tenant systems, integrations, business logic

Enterprise software

Frappe, ERPNext, accounting, purchasing, sales, inventory

Infrastructure & data

Docker, MariaDB / MySQL, PostgreSQL, Supabase, cloud deployments

AI & automation

LLM integration, agents, tool calling, MCP, OpenAI-compatible APIs

Experience

Engineering and delivery, end to end.

DIAMO

Co-Founder & Technical Lead

2013 — Present

DIAMO builds enterprise software and ERP solutions. My role combines hands-on development, technical direction, and project management.

  • Lead development teams, define technical direction, and support implementation.
  • Manage projects from requirements and planning through deployment and ongoing support.
  • Coordinate scope, priorities, and timelines with clients and internal stakeholders.
  • Design and develop Python applications, ERP extensions, APIs, and automated business workflows.

Let’s talk about your next backend challenge.

Available for fully remote Senior Python / Backend Engineer and Technical Lead roles, as an employee or international contractor.

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