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rspier-ax/README.md

Rodolfo Spier

Senior Software Engineer

Full-Stack Product Engineering · Architecture · Modernization

I build software products from interface to infrastructure: web applications, APIs, integrations, automation, and event-driven systems.

LinkedIn Email Brazil


About

Senior Software Engineer building and modernizing software professionally since 2018.

My background combines full-stack product engineering, frontend architecture, backend development, system integration, platform modernization, and technical leadership.

I have worked on enterprise applications, customer-facing products, internal platforms, automation, authentication, auditability, data workflows, and real-time systems.

My experience includes Carnegie Learning, Computing System Innovations, ADP, and Dell Technologies, collaborating with distributed teams across the world.

What I’ve built and contributed to

  • Designed and delivered full-stack products across web applications, backend services, APIs, databases, integrations, and cloud infrastructure.
  • Built scalable frontend foundations using reusable component systems, shared libraries, state management, accessibility standards, and responsive application architecture.
  • Developed backend capabilities including authentication, authorization, audit logging, messaging, automation, background workflows, and external system integrations.
  • Modernized enterprise platforms through incremental migrations, architectural improvements, technical debt reduction, and stronger engineering foundations.
  • Contributed beyond implementation through system design, technical planning, mentoring, code reviews, documentation, and collaboration with Product, Design, Support, and Engineering.

Technologies

Languages, runtimes, and backend

TypeScript JavaScript C Sharp .NET Java Spring Python Go Node.js NestJS

Application and service development: TypeScript · JavaScript · C# · .NET · ASP.NET Core · Java · Spring Boot · Python · Go · Node.js · NestJS · Fastify

Used across full-stack products, REST APIs, internal services, system integrations, automation, background processing, authentication, messaging, and service-oriented applications.

Frontend and application architecture

React Angular Next.js Tailwind CSS HTML5 CSS3 Sass Material UI Vite

Frontend engineering: React · Angular · Next.js · TypeScript · RxJS · NgRx · Nx · Tailwind CSS · Angular Material · HTML · CSS · Sass · Vite

Focused on scalable application architecture, reusable component systems, design systems, state management, accessibility, responsive interfaces, API-driven workflows, performance, and incremental frontend modernization.

Data, messaging, and distributed systems

PostgreSQL MongoDB Redis Apache Kafka

Data and messaging: PostgreSQL · MongoDB · Redis · Apache Kafka · SQL · event-driven architecture · caching · data modeling

Used for transactional data, operational workflows, asynchronous communication, real-time updates, event streaming, caching, and integration between application services.

Cloud, infrastructure, and delivery

Docker Kubernetes AWS Azure GitHub Actions Jenkins GitLab Git Linux PowerShell

Cloud and delivery: AWS · Azure · Docker · Kubernetes · GitHub Actions · Jenkins · GitLab CI/CD · Git · Linux · PowerShell

Experience supporting containerized applications, cloud environments, automated builds, deployment pipelines, quality gates, environment configuration, release workflows, and repeatable engineering processes.

Testing and engineering quality

Testing and quality: Jest · React Testing Library · unit testing · integration testing · automated testing · code coverage · SonarQube · CI/CD

Testing, maintainability, documentation, observability, accessibility, and developer experience are treated as part of product delivery rather than separate finishing steps.

Pinned Loading

  1. semantic-forge semantic-forge Public

    Semantic model workbench for designing, validating, versioning, and publishing analytical models — OpenUI5, SAP CAP, OData V4, TypeScript.

    TypeScript

  2. dispatch-lab dispatch-lab Public

    Real-time operator dispatch console — Angular, Go, SSE, POA (Brazil - RS) demo

    TypeScript

  3. decision-desk decision-desk Public

    Enterprise risk-review workspace built with Next.js, React, and TypeScript, featuring auditable decisions, resilient async states, deterministic demo scenarios, and structured case summaries.

    TypeScript