Tiago Espanha
Niterói, Rio De Janeiro
Summary
Senior Software Engineer with 8+ years of experience in backend and full-stack development. Specializes in distributed systems, event-driven architectures, and IAM solutions. Proven expertise in designing and scaling microservices, and leading cross-functional teams. Strong background in Golang, Typescript, and Javascript, proficiency in PostgreSQL, Kubernetes, Terraform, and cloud computing (AWS/GCP).
Overview
8
8
years of professional experience
Work History
Staff Software Engineer
Isaac
08.2023 - Current
- Collaborated with cross-functional teams to deliver high-quality software products on schedule.
- Designed and implemented a Single Sign-On (SSO) service, unifying multiple user databases and streamlining authentication across the organization. This reduced authentication complexity, accelerating the development of new services by 20% by allowing teams to focus on business logic instead of access management.
- Designed and implemented a centralized permissions management system, based on Google's Zanzibar model, which improved consistency in access control and simplified permissions management across multiple platforms
- Re-architected the company's authentication and authorization middleware, improving scalability, usability, and resilience to support high-growth demands.
- Revamped team documentation by updating existing materials and creating new resources, improving domain understanding across technical and product teams, and significantly accelerating onboarding time.
- Mentored team members on technical and soft skills, facilitating study sessions on SOLID principles and Clean Architecture, resulting in team-wide adherence to best practices
- Provided architectural and technical support for complex cross-team projects, enhancing alignment and reducing project timelines for critical initiatives
- Participated in technical leadership meetings, contributing to company-wide coding standards, promoting consistency and maintainability across projects.
Senior Software Engineer
Isaac
07.2022 - 08.2023
- Led the planning and implementation of a key financial system, leveraging microservices architecture with Golang, PostgreSQL, Redis, and event-driven architecture, enabling the secure and efficient processing of over BRL 120 million monthly.
- Built a new user portal with Next.js for the frontend and BFF, leveraging a microservices architecture with Golang, PostgreSQL, and Redis for caching. This enhanced scalability and resilience, driving a 300% increase in monthly active users.
- Optimized critical workflows, reducing report generation time by 95% by refactoring a Python and Pandas-based process, significantly improving system efficiency
- Designed and implemented a centralized auditing system in Golang, using a pub/sub architecture, which increased observability of critical company workflows and virtually eliminated support tickets related to 'who did it'.
- Diagnosed and resolved major database storage growth issue, due to indefinitely open transactions, which prevented WAL data from being deleted, stabilizing storage usage across company.
- Established best practices for synchronous/asynchronous communication, ensuring atomicity in distributed systems.
Senior Software Engineer
Gupy
03.2020 - 06.2022
- Developed microservices in NodeJS (TypeScript), PostgreSQL and Elasticsearch
- Established pipelines for continuous integration (CI) and continuous delivery (CD) of new features using Jenkins and Terraform
- Led the planning and implementation of the decoupling of a system portion into microservices, ensuring scalability, error tolerance, and observability
Freelance Software Engineer
Freelance
10.2018 - 02.2020
- Worked as a Technical Leader on a chatbot project using Python and Django, convincing stakeholders of the need to implement a new architecture to make the system more modular, enabling faster deliveries
- Led the project and implementation of a Content Management System (CMS) using TypeScript, React, and PostgreSQL, effectively prioritizing tasks and defining scope to drive efficient development and alignment with business objectives.
Software Engineer
Codezone
10.2017 - 10.2018
- Backend development for marketing campaigns using Laravel and MySQL
- Web game development with PixiJS
Junior Software Engineer
Codezone
04.2017 - 09.2017
Intern
Codezone
10.2016 - 03.2017
Education
Information Systems -
UFF - Universidade Federal Fluminense
Niteroi, RJ12.2024
Informatic -
CEFET Centro Federal de educação Tecnológica Celso Suckow
Rio de Janeiro, RJ12.2010
Skills
- Golang
- JavaScript
- TypeScript
- Python
- Rust
- Automated Testing
- PostgreSQL
- Redis
- Elasticsearch
- Kafka
- GCP
- AWS
- Software architecture design
- Clean architecture
- DDD
- Choreography and Orchestration
- SOLID
- Terraform
- Github Actions
- Team leadership
- Web application development
- Continuous integration and deployment (CI/CD)
Languages
Portuguese
Bilingual or Proficient (C2)
English
Advanced (C1)
Timeline
Staff Software Engineer
Isaac
08.2023 - Current
Senior Software Engineer
Isaac
07.2022 - 08.2023
Senior Software Engineer
Gupy
03.2020 - 06.2022
Freelance Software Engineer
Freelance
10.2018 - 02.2020
Software Engineer
Codezone
10.2017 - 10.2018
Junior Software Engineer
Codezone
04.2017 - 09.2017
Intern
Codezone
10.2016 - 03.2017
Informatic -
CEFET Centro Federal de educação Tecnológica Celso Suckow
Information Systems -
UFF - Universidade Federal Fluminense
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