Thiago Santos

Solutions and Data Architect with over 10 years of experience in complex corporate environments, working on the definition, evolution, and governance of solutions and data architectures. Specialist in transforming legacy environments into modern, scalable, and data-driven platforms, connecting business strategy to technical execution. Solid experience in building AS IS / TO BE architectures, using the C4 model, microservices, and REST APIs, ensuring architectural clarity, decoupling, and sustainability of solutions.

Strong performance in data architecture, with the design and implementation of Data Lakes, Data Warehouses, and ETL/ELT pipelines, using Databricks, PySpark, SQL, Oracle, and Cloud (AWS). Hands-on experience with backend and frontend development stacks, including C#/.NET with Entity Framework, Python for data engineering and automation, and React for web applications integrated with APIs. This hands-on experience ensures realistic architectural decisions, oriented towards operation, performance, and maintainability in production.

I have strong experience in modernizing legacy systems, integrating multiple business domains, and consolidating data from ERPs such as SAP, Protheus, and Mega, ensuring interoperability, traceability, and reliability of information. I work on defining migration strategies, decoupling, and continuous evolution of the architecture without negatively impacting the business. In addition to technical expertise, I play an active role in architectural and data governance, defining standards, best practices, quality policies, security, and observability.

Experience with Power BI, Splunk, ElasticSearch, and automation tools (UiPath, Automation Anywhere, Power Automate, BotCity), ensuring control, visibility, and operational efficiency. I act as a technical reference and lead architect, supporting engineering, data, and product teams in decision-making, technical prioritization, and stack definition. My focus is on building solutions that scale, perform, and generate real value, where architecture is not documentation — it's a competitive advantage.

I possess professional fluency in multilingual environments, with English at a B2 level, allowing me to confidently participate in technical meetings, architectural documentation, negotiations, and alignment with international teams and partners. I also have Spanish at a B1 level, with strong communication skills in corporate and technical contexts, and French at an A2 level, used for technical reading, understanding documentation, and basic communication in professional settings.

SOLUTIONS ARCHITECT at ACT DIGITAL (2025-03 – 2026-02)

• Design and evolution of enterprise architectures using the C4 model (Context, Container, Component), ensuring clarity, governance, and technical-strategic alignment.
• Conducting AS IS / TO BE analyses, mapping legacy environments and defining scalable, resilient, and business-oriented target architectures.
• Architecture of APIs and microservices, synchronous and asynchronous integrations, focusing on decoupling, security, and observability.
• Definition and governance of data architecture, including Data Lake, Databricks, and SQL/Oracle databases, ensuring performance and integrity.
• Technical work with C#/.NET, Entity Framework, React, and Python, supporting teams in the design and implementation of solutions.
• Evaluation and definition of technology stack, architectural patterns, and best practices, acting as a technical reference for engineering teams.
• C4 Model | AS IS / TO BE | Microservices | REST APIs | Data Lake | Databricks | SQL | Oracle | C# |.NET | Entity Framework | React | Python

SOLUTIONS AND DATA ARCHITECT at GRUPO T2C (2020-12 – 2025-03)

• Focus primarily on building solutions based on business needs, making use of existing company services and technological resources.
• Responsible for reusing functionalities and services, aligning new solutions with already defined architectural principles, respecting existing standards and integrations. Use of tools such as Python, Power BI, Spark, PySpark, Splunk, ElasticSearch, and SQL.
• Seek a balance between functional and non-functional requirements with the necessary prioritization and compromises.
• Develop ETL and ELT for data manipulation for process mining tools and BI dashboards, create big data and maintain data warehouses, advanced SQL concepts, stored procedures, triggers and functions, extract SAP data from ORACLE databases, and develop data in Python for data mining.
• Develop data architecture, data migration, data connection and manipulation in SQL and SAP, and data development in the main ERPs: SAP, PROTHEUS, and MEGA.

Business intelligence analyst at Kessef Bank (2019-01 – 2020-12)

• Business Intelligence (BI) Analysis, Project Development, Database Administrator

COORDENADOR DE TI at EUREKA TRADING (2017-06 – 2019-06)

Responsible for the company's technology area, ERP configuration and support, development of new technologies such as QR codes on packaging, management of operating systems, development of contingency plans and process flows. Responsible for integrations, development and training of new tools, ERP and CRM manager. Develop projects and solutions related to Business Intelligence and Analytics, Big Data and Self-service BI, aiming to innovate the company's data analysis culture.

Database Administrator at XCODE (2015-02 – 2016-12)

• Responsible for database administration and all data manipulation operations
• Database modeling and application development
• Lists and reports
• Management of the project to be developed, participation in the project scope and startup
• Team leader with experience in Agile Scrum and Kanban development
• Development and standardization of internal reports, distribution of tasks to be developed, programming standardization, leadership

MBA in Economics and Business Management – Paulista University (2020-01 – 2020-12)

MBA in Business Intelligence, Information Technology – Cruzeiro do Sul University (2017-01 – 2018-12)

Technologist in Data Processing – Fatec - Jose Crespo Gonzales (2008-01 – 2013-12)