Hi, I'm Pedro 👋

Deliver cross-stack changes across Angular 18, TypeScript, API workflows, auth/RBAC and deployment configuration for an enterprise microservices platform spanning multiple client environments.

• Build back-end services with .NET Core and EF Core behind modular, high-performance APIs, and ship Angular 18 and Material UI dashboards that turn rail operations data into workflows operators can act on.
• Harden OAuth 2.0, Keycloak and Open Policy Agent authorization paths, reducing auth regression risk and making RBAC behaviour easier to validate across distributed services.
• Improve release confidence for 15+ Docker Swarm services by tightening health checks, deployment validation, service configuration and acceptance criteria before multi-client releases.
• Hold the line on unit and integration coverage to meet Siemens Mobility rail safety standards, partnering with cross-functional teams to shape features around operational requirements.

Taught Python, JavaScript, AI and Blockchain in the Diploma of IT program, alongside full-time engineering work.

• Designed industry-aligned curriculum with hands-on projects, covering fundamentals end to end — syntax, variables and I/O through conditionals, loops, testing and debugging.
• Ran live demonstrations and guided coding sessions rather than leaning on theory, helping students debug both their code and their development environment.
• Adapted explanations across very different technical backgrounds and levels of English, building students toward working independently with code.
• Teaching made me significantly better at turning abstract technical ideas into something concrete and clear.

Founded a studio building custom software for small businesses, and took it from zero to paying clients.

• Delivered client projects end to end on Next.js, TypeScript, Node.js, Postgres, C#, React, Docker, Linux and GCP.
• Owned everything engineers usually never touch: sales, scoping, pricing, support and product calls.
• Shipping on my own dime made me far sharper about which technical decisions are actually worth paying for.

Reduced bulk invoice processing from 3 hours to 30 minutes by architecting a distributed Agenda.js job queue with parallel workers, retries and failure recovery.

• Led migration of a 50K+ LOC Meteor.js monolith to React and TypeScript, introducing unit tests, typed module boundaries and safer incremental delivery paths.
• Owned CI/CD and zero-downtime release practices for the Lead Roster platform, supporting 10K+ active users without disrupting sales operations.
• Reduced P0 incident risk by improving observability, debugging production issues, and turning recurring customer-facing failures into permanent fixes.
• Ran complex MongoDB queries and data migrations, working with business analysts to align features with business needs.

Improved API response times from 4 seconds to 800 ms by tuning PostgreSQL queries, adding indexes, introducing Redis caching and using TimescaleDB hypertables.

• Built a high-throughput IoT ingestion layer with Node.js, Express, MQTT, GCP and NGINX, processing data from 50+ ESP32 edge devices.
• Created a Python automation framework with Selenium and OCR that reduced manual video analysis from 6 hours to 1.2 hours per batch.
• Delivered real-time operational tools across React Native, Socket.io and Django REST for dispatch visibility, KPI reporting and leadership decision-making.
• Stood up Postgres with PostGIS for geoJSON support, and configured infrastructure with Docker, Dokku, Nginx Proxy Manager and Ubuntu Server.

Migrated 8 critical insurance integration services from legacy BPEL to C#/IIS within 3 months, preserving backward compatibility while improving testability and reducing maintenance overhead.

• Migrated the Oracle SOA bus to .NET WCF services integrating with Oracle databases.
• Rebuilt SOA BPEL flows in C#, testing APIs with SoapUI and applying singleton and facade patterns backed by unit tests.
• Deployed executables on IIS for Windows Server, working directly with clients to determine project requirements.

Built BPEL and ODI integrations between legacy systems, Oracle Retail Merchandising, Microsoft SQL Server, XML/JSON payloads and REST APIs on Oracle WebLogic.

• Created web service APIs and integrated SQL Servers through WebLogic.
• Wrote procedures, functions and queries in PL/SQL.
• Managed ETL processes migrating data from legacy databases to new systems.

Developed new features for the AgendaBit and LocalBit systems in PHP and CodeIgniter.

• Implemented front-end functionality with AJAX, jQuery and Bootstrap.
• Redesigned legacy code, applying object-oriented principles and the Factory design pattern.
• Provided training for new employees and supported end users.