Back to homepage

Professional asset

Accessible resume summary

Paulo Coelho Filho is a senior software engineer with 15+ years of experience across backend systems, .NET, APIs, databases, modernization, architecture, reliability, product ownership, and practical AI-assisted engineering.

Canonical PDF
/documents/paulo-coelho-resume.pdf
Review status
reviewed-no-known-private-metadata
File size
134,622 bytes
Last reviewed
2026-09-03

Professional impact

Selected outcomes and impact

€300K

recovered

Optimized a critical legacy financial process at eShopWorld, helping recover approximately €300,000.

30 min → ms

performance shift

Reduced a legacy duty-drawback process from roughly 30 minutes to milliseconds after reverse-engineering its behavior.

40%

fewer bugs

Helped reported bugs fall by approximately 40% while strengthening Easynvest's Account API v2.

70%

coverage

Increased automated test coverage to roughly 70% within about two weeks during a major API initiative.

Experience

Career experience

Alquimia Tech

Founder / Senior Software Engineer

2025-present

Founded Alquimia Tech and designed OmniLex, a legal-document automation SaaS for reusable smart templates and structured document generation.

  • Built a legal-document automation SaaS from concept to production, owning product requirements, architecture, technical direction, testing, deployment, and customer validation.
  • Designed document-generation workflows around structured templates, mappings, calculations, optional blocks, placeholders, and DOCX/XML processing.
  • Used AI coding agents as implementation support while retaining responsibility for decomposition, review, debugging, validation, tests, and acceptance.

Tegus

Software Engineer

Jul 2022-Nov 2024

Worked on financial-modeling software, primarily an Excel add-in used by investors customizing analyst-produced company models.

  • Designed a model-update approach that preserved customers' spreadsheet customizations while integrating updated company models.
  • Modeled spreadsheet entries around stable predecessor and anchor relationships so reconciliation did not depend only on row position.
  • Owned development of a Windows installer, including machine-wide and per-user installation paths for enterprise environments.

eShopWorld

Software Engineer

Dec 2020-Nov 2021

Worked on large-scale international ecommerce and financial systems with legacy C# services, relational databases, and high-risk release processes.

  • Reverse-engineered and optimized a critical legacy financial process from roughly 30 minutes to milliseconds, helping recover approximately €300,000.
  • Moved appropriate filtering and query work closer to the database while preserving existing business behavior.
  • Was selected to onboard an external senior engineering team and act as a technical bridge between contractors and internal leadership.

Wealth.com

Software Engineer

Dec 2021-2022

Worked in a startup building wealth and estate-planning software, with significant ownership of backend product capabilities.

  • Designed and delivered a greenfield .NET API with strong automated test coverage from the beginning.
  • Worked closely with product and frontend engineering on API contracts and a user-profile questionnaire feature.
  • Adapted architecture after senior feedback by moving appropriate business logic out of database configuration and into backend code.

Easynvest

Software Engineer

Dec 2017-Nov 2018

Worked on financial and investment software as part of a growth-oriented engineering team delivering Account API v2.

  • Helped strengthen Account API v2 by increasing automated test coverage to roughly 70% within about two weeks.
  • Improved confidence in the API during a significant new-version delivery effort.
  • Reported bugs subsequently fell by approximately 40%, and the initiative shipped in about three months.

Infinite Software

Software Engineer

Aug 2018-Oct 2019

Worked primarily on backend .NET software in a team environment where automated testing and delivery discipline could be improved.

  • Helped strengthen automated testing and CI practices in a .NET codebase.
  • Introduced and advocated for xUnit and TDD-oriented workflows.
  • Contributed to approximately 65% automated test coverage in the relevant codebase/workflow.

Matera

Software Engineer

Nov 2014-Dec 2017

Worked across backend business software and financial technology projects, including market-risk related systems.

  • Developed .NET backend/API functionality and database scripts across SQL Server and Oracle environments.
  • Worked with automated tests and production support/deployment activities.
  • Gained exposure to conversational technology with Dialogflow and AWS deployment/support work.

Earlier experience

Software development and support roles

Before 2014

Earlier professional experience established the foundation for a long software engineering career.

  • Worked in junior .NET development and software support roles.
  • Built enterprise support experience at IBM.
  • Completed internship and COBOL development experience at Capgemini.

Technology vocabulary

Core skills and domains

Core backend

  • C#/.NET
  • ASP.NET Core
  • REST APIs
  • SQL
  • Databases

Modern product work

  • TypeScript
  • Node.js
  • NestJS
  • React
  • PostgreSQL

Engineering practice

  • TDD
  • Automated testing
  • CI/CD
  • Architecture
  • Reliability

Domains

  • Financial systems
  • Ecommerce
  • Legal tech
  • AI-assisted engineering

Deeper context

Selected engineering stories