Cesar Cardoso
I’m a Platform Team Lead and hands-on Data/Backend Engineer with 17+ years in tech. I build and lead systems around data platforms, APIs, integrations, observability, and automation, with current work focused on energy-market infrastructure at suena energy. I care about clear ownership, reliable pipelines, pragmatic architecture, and helping teams turn messy operational data into systems people can trust.
Experience
Platform Engineering Lead, suena energy - 07.2026 - now | Hamburg, Germany
- Lead the Platform team as a player-coach, combining people leadership, delivery management, architecture, and hands-on backend development.
- Own and evolve the company’s platform capabilities across APIs, backend services, databases, external integrations, observability, and health monitoring.
- Lead the architectural decoupling of APIs, energy-market interfaces, and billing processes from a legacy monorepo into independently maintainable services.
- Design the company’s data-platform strategy, connecting domain databases through a shared analytics layer while preserving clear data ownership across departments.
- Enable Data Science, Trading, Operations, and Finance teams through reliable APIs, data pipelines, internal tooling, and third-party integrations.
- Establish engineering conventions, sprint practices, technical priorities, and team responsibilities while recruiting and mentoring backend engineers.
- Contribute to a company-wide business intelligence and reporting platform intended to replace disconnected spreadsheets and manual reporting processes.
- Apply AI-assisted engineering workflows to software development, technical investigations, decision management, and organizational knowledge sharing.
Tech stack: Python, Django, PostgreSQL, AWS (Lambda, CloudWatch, RDS, S3, Secrets Manager), Docker, Grafana, REST APIs, Git, Jira, and integrations with energy-market and asset-management platforms.
Backend Engineer, suena energy - 02.2026 - 06.2026 (4 Months) | Hamburg, Germany
- Developed a centralized alerting and health-monitoring system for production services;
- Led the development of the analytics platform consolidating data from multiple company databases;
- Upgraded the company’s core Django repo from Django 4.2 to 5.2, resolving compatibility issues and modernizing its backend foundation;
- Collaborated across Engineering, Data Science, and Trading team to design reliable backend and data solutions.
Tech stack: Python, Django, PostgreSQL, Docker, AWS, Grafana, REST APIs and Git.
Data Engineering Volunteer, Parceiros Pela Amazônia - PPA - 12.2025 - 03.2026 (4 Months) | (remote)
- Transforming data collection processes into structured and stable pipelines;
Tech stack: GCP (Functions, BigQuery, Dataform, Looker), SQL und Python (Pandas, NumPy).
Personal Development and Relocation Preparation - 07.2024 - 09.2025 (1 Year 2 Months) | Brazil, Japan, Germany
Following 17 years of professional experience in software development, I dedicated a period to personal growth, exploring new fields such as Audio Engineering and Japanese culture, while preparing for my relocation to Germany.
- Germany VISA
(Chancenkarte - § 20a AufenthG) Preparation and Relocation | 02.2025 - 09.2025;
- German Studies in Goethe-Institut in Hamburg for A2-Zertifikat, Germany | 02.2025 - 03.2025;
- Data Engineering Studies in Coursera | 12.2024 - 01.2025
- Japanese Culture and Language Studies in Kosaka, Japan | 10.2024;
- Audio Engineering Studies in São Paulo, Brazil | 07.2024 - 08.2024;
Data Engineering Lead, Laboratoria - 07.2021 - 06.2024 (3 yrs) | Lima, Perú (remote)
- Transformed data collection processes into structured and stable pipelines, enhancing operational efficiency;
- Integrated multiple new data sources into the data lake, expanding the organization’s data capabilities;
- Collaborated with C-Suite to establish OKRs, improving data reporting to donors and stakeholders;
- Led the implementation of data governance measures, establishing a robust data management framework;
Tech stack: GCP (Functions, BigQuery, Storage, Dataform), Docker, Postgres, Firebase, MongoDB, SQL and Python (Pandas, NumPy, PySpark).
Software Engineering Lead, Laboratoria - 10.2018 - 07.2021 (2 yrs 10 mos) | Lima, Perú (remote)
- Designed and managed teams to develop systems supporting the entire student journey, from application to graduation;
- Facilitated integration among stakeholders to achieve shared technical goals, enhancing collaboration;
- Led the transformation of physical teams into effective remote teams, boosting productivity;
- Collaborated with product owners and developers to design, build, and maintain web solutions;
Tech stack: GCP, NodeJS, React, Docker,MongoDB and Firebase.
IT Director, TECHO - 06.2016 - 10.2018 (2 yrs 5 mos) | Santiago, Chile
- Spearheaded technology strategy and systems management across 21 countries in Latin America, the Caribbean, and the USA;
- Designed a comprehensive 10-year digital transformation strategy for TECHO Internacional;
- Redesigned central systems for finance and volunteer management to enhance operational efficiency;
- Elevated TECHO’s profile as a technology leader at international events in Chile, the UK, and the Netherlands;
- Implemented Cloud Computing solutions to enhance organizational efficiency;
Tech stack: GCP, Python, PHP, Linux, Mysql, Wordpress.
Project Manager, Alfaiataria Digital - 10.2014 - 04.2016 (1 yrs 7 mos) | São Paulo, Brazil
- Played a pivotal role in optimizing online campaign processes and managing tech teams for high-profile clients;
- Improved campaign delivery time from 10 days to just 2 days, significantly enhancing operational efficiency for Jaguar Land Rover;
- Oversaw website development for notable brands, including Teto Brasil and Donato Viagens, ensuring high-quality digital experiences;
- Acted as the main technical representative, leading multiple squads in online advertisement and web development initiatives;
Tech stack: PHP, MySQL, HTML5, Adobe Flash, Wordpress, Magento, GA4.
Software Engineer, ERPFlex - 08.2012 - 10.2024 (2 yrs 3 mos) | São Paulo, Brazil
- ERP System development using PHP, Adobe Flex, MySql.
Tech stack: PHP, Adobe Flex, MySql.
Software Engineer, Alfaiataria Digital - 02.2012 - 08.2012 (7 mos) | São Paulo, Brazil
- System development using PHP, MySql, WordPress and FaceBook integration.
Tech stack: PHP, MySql, Wordpress.
IT Director (Co-Founer), Incandescente - 07.2009 - 02.2012 (2 yrs 8 mos) | São Bernardo do Campo, Brazil
- Responsible for technology strategy, product design and development.
Tech stack: PHP, MySql, Adobe Flex.
Software Engineer, RAPP Brasil - 08.2011 - 10.2011 (3 mos) | São Paulo, Brazil
- System development using PHP, MySql, WordPress and FaceBook integration.
Tech stack: PHP, MySql, Wordpress.
Software Engineer, ERPFlex - 01.2010 - 07.2011 (1 yrs 7 mos) | São Paulo, Brazil
- ERP System development using PHP, Adobe Flex, MySql.
Tech stack: PHP, Adobe Flex, MySql.
Web Developer, Click;Pronto - 05.2008 - 12.2009 (1 yrs 8 mos) | Santo André, Brazil
- ERP System development using PHP, ASP.NET, CSS, Javascript, Flash, Ajax, MySql, MS SQL Server.
Tech stack: PHP, CSS, Javascript, Flash, Ajax, ASP.NET, MySql, MS SQL Server.
Intern Programmer, OIC - 01.2008 - 05.2008 (5 mos) | São Bernardo do Campo, Brazil
- System development using ASP.NET, PHP, CSS, Javascript, Adobe Flash, Ajax, Oracle.
Tech stack: ASP.NET, PHP, CSS, Javascript, Adobe Flash, Ajax, Oracle.
Intern Web Designer, Click;Pronto - 06.2007 - 12.2007 (7 mos) | Santo André, Brazil
- Website Designing, photo editing, web development using CMS Joomla, PHP, HTML, CSS, Javascript, Adobe Flash.
Tech stack: PHP, CSS, Javascript, Adobe Flash, Joomla.
Education
Human Science, Sociology, History and Philosophy
System Analysis and Development
Technical High School - ETEC Lauro Gomes | 2004 - 2005
Information Technology
Languages
- Brazilian Portuguese: Native | C2
- English and Spanish: Fluent | C1
- German, French and Italian: Basic | A2
Other courses
IBM - Hands-on Introduction to Linux Commands and Shell Scripting - 01.2025 (view certificate)
IBM - Databases and SQL for Data Science with Python - 01.2025 (view certificate)
IBM - Python Project for Data Engineering - 01.2025 (view certificate)
IBM - Python for Data Science, AI & Development - 01.2025 (view certificate)
IBM - Introduction to Relational Databases (RDBMS) - 01.2025 (view certificate)
IBM - Introduction to Data Engineering - 12.2024 (view certificate)