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
Modern product work
Engineering practice
Domains
Deeper context
Selected engineering stories
- Legacy modernization / performanceeShopWorld
- Complex reconciliation / domain logicTegus
- End-to-end SaaS with AI-assisted engineeringAlquimia Tech
- Greenfield API / qualityWealth.com
