JOSE SANTOS

Principal Software Engineer

Professional Summary

Principal Software Engineer with 20+ years of experience architecting and delivering high-scale, mission-critical software systems across Fortune 500 companies, government environments, financial platforms, and transportation systems. Expert in .NET, Azure, distributed systems, microservices, cloud-native architecture, big data platforms, Apache Spark, Kafka, Scala, Kotlin, C#, and SQL Server. Proven record leading cross-functional engineering teams, defining scalable system architecture, modernizing legacy platforms, and delivering reliable services that process millions of transactions and events. Strong focus on performance, scalability, reliability, collaboration, mentoring, and engineering excellence.

Technical Skills

Languages: C#, Java, Kotlin, TypeScript, Scala, T-SQL

Frameworks: .NET Core, ASP.NET MVC, Web API, Angular, React, GraphQL

Cloud & Data: Microsoft Azure, Apache Spark, Kafka, Redis, cloud-native services, big data platforms

Databases & Reporting: SQL Server, PostgreSQL, T-SQL, SSRS, business intelligence reporting

Messaging & Observability: RabbitMQ, Logstash, Graylog, IBM MQ, distributed messaging, logging pipelines

Engineering Practices: Distributed systems, microservices, CI/CD, performance optimization, system design, architecture modernization, technical leadership, mentoring

Professional Experience

Cubic Transportation Systems — Principal Software Engineer

Sep 2025 – Present

Architect and deliver CRM-integrated single-page application platforms using .NET MVC, Angular, and React for large-scale metropolitan transit systems.
Lead modernization initiatives that transform legacy systems into scalable, maintainable, cloud-ready architectures.
Collaborate with distributed engineering teams to improve platform performance, reliability, maintainability, and delivery quality.

Intuit — Staff Software Engineer

Apr 2024 – Sep 2025

Engineered cloud-native services using Kotlin, GraphQL, and Kafka to support financial platform modernization.
Designed event-driven architectures processing 2M+ business transactions daily while meeting strict latency and reliability requirements.
Owned end-to-end implementation and production onboarding of the Business Transaction ingestion layer for QuickBooks modernization services.

Microsoft — Principal Software Engineer

Aug 2022 – Apr 2024

Led teams of 6–10 engineers delivering Azure-based big data platforms using Apache Spark and Scala.
Defined architecture for batch and real-time streaming pipelines handling large-scale enterprise datasets.
Designed sovereign cloud onboarding strategy enabling secure migration of government workloads.
Coordinated multi-region engineering activities to deliver highly available cloud systems.

Cubic Transportation Systems — Principal Software Engineer

Jan 2017 – Aug 2022

Architected a high-throughput logging platform processing millions of events per hour using C# and distributed messaging systems.
Integrated Kafka, Logstash, and Graylog pipelines for scalable data ingestion and observability.
Led Angular modernization from version 4 to version 6 and developed reusable enterprise UI components.
Designed performance validation systems supporting 1,250 concurrent users and 200K+ API calls per hour.
Mentored engineers and led code quality initiatives that improved maintainability and delivery speed.

Mogo Financial — Senior CRM Engineer

Feb 2015 – Jan 2017

Designed real-time integration services connecting financial backend systems with Microsoft Dynamics CRM.
Implemented event-driven messaging pipelines using RabbitMQ and .NET.
Delivered business intelligence and reporting solutions using SQL Server, SSRS, and T-SQL.
Developed automation tools that improved operational efficiency and data visibility.

Colliers — Software Engineering Team Lead

Jan 2013 – Jan 2015

Led a team of 5–7 engineers delivering enterprise CRM solutions aligned with business strategy.
Executed large-scale CRM migration from CRM 4 to CRM 2013 with minimal downtime and high data integrity.
Developed a real estate platform integrating CRM and Google Maps APIs under aggressive timelines.

CGI — Consultant / Software Developer

Apr 2012 – Dec 2012

Developed enterprise business intelligence and reporting systems using .NET and SQL Server.
Optimized critical database workloads, reducing execution time from hours to minutes.
Built internal tooling for CRM automation and migration processes.

Iomer — Senior Software Developer

Mar 2011 – Apr 2012

Delivered multiple enterprise CRM and SharePoint integration projects.
Designed a data migration framework achieving up to 8x performance improvement over legacy tools.

Sierra Systems — System Analyst

Aug 2010 – Feb 2011

Developed government tax and financial systems using .NET Windows Forms.
Performed system analysis and contributed to critical state-level platforms.

Earlier Career — Brazil

1994 – 2010

Taught algorithms, data structures, .NET, and database systems as a professor and mentor.
Managed 20+ engineers as a technical lead for banking and ERP systems.
Designed enterprise platforms that improved operational efficiency across multiple industries.

Education

Master’s Degree, Information Systems — Federal University of Campina Grande
Bachelor’s Degree, Information Technology — Tiradentes University

Certifications

Microsoft Certified Technology Specialist (MCTS): .NET Framework 4, Web Applications
Microsoft Certified Technology Specialist (MCTS): Accessing Data with Microsoft .NET Framework 4
Microsoft Certified Technology Specialist (MCTS): SharePoint 2010, Application Development
Microsoft Dynamics CRM 2013 Customization and Configuration (MB2-703)

Volunteer and Open-Source Projects

GitHub Open-Source Portfolio: github.com/airamez

Maintains volunteer and open-source projects on GitHub, including software libraries, educational platforms, ERP work, and independent game projects.

Apyvyra: Open-Source ERP — apyvyra.com | GitHub

Developed and maintains an open-source ERP platform focused on modular business application capabilities.

Ze Bomber and Ze Gunner — Unreal Engine Games

Published two Unreal Engine 3D games on Steam, demonstrating independent game development, release management, and creative engineering experience.
Ze Bomber on Steam
Ze Gunner on Steam

Volunteer Coding Education

YouTube playlists supported by GitHub repositories with 400+ classes teaching coding from zero to Full-Stack.
codando.live
codelearn.live

C# .NET Graph Library — ZeGraphos on GitHub

Developed a comprehensive C# .NET graph library designed for single-machine memory usage, supporting weighted, unweighted, directed, and undirected graph types.
Implemented an interface-first API design with common graph algorithms and operations, including shortest path, maximum flow, minimum spanning tree, graph coloring, and topological sorting.
Built unit tests, performance benchmarks, efficient adjacency-list data structures, and NuGet-ready packaging for distribution and consumption.