Gleidson Thuller
Engineering Manager @Personio
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WORK HISTORY
Engineering Manager @Personio
Munich, DE
Led a large-scale migration from a PHP monolith to distributed systems using Kotlin and AWS. Re-platformed key consumer-facing features, including the Employee List and Employee Profile, migrating to React with TypeScript and delivering a 30% improvement in perceived performance.• Managed the delivery of a high-performance, scalable, and reliable Search API to serve organizational data across the company, capable of handling req/sec under 200ms upon release.• Improved engineering efficiency and system stability by implementing lightweight, outcome-driven Agile processes. Results include boosting focus time for engineers to 75%+, a reduction of high-impact incidents from over 10 to 2 per year, and a bug backlog drop from more than 100 to fewer than 20.• Scaled the core domain from 5 to 27 engineers in 18 months during a hypergrowth phase, and have been continuously building, growing, splitting, and restructuring remote-first, distributed teams to support product expansion, enabling the broader product area to reach 50–60 engineers overall.• Currently managing two cross-functional teams and 11 engineers, fully responsible for the Organizational Data domain. This includes maintaining and expanding the company’s most complex UI component, along with other critical full-stack systems used company-wide.• Successfully revitalized two teams with delivery and quality challenges by optimizing capacity vs. backlog, strategically tackling critical technical debts, integrating stakeholder feedback, implementing robust onboarding and documentation systems, and developing a comprehensive team maturity plan, resulting in measurable improvements in team perception and delivery as tracked by weekly health check with scores averaging 4 out of 5 on different key indicators.• Introduced and scaled team retrospectives and health check tooling adopted by more than 34 teams, with its success leading to company-wide rollout to over 70 teams driven by executive leadership.
EDUCATION
Centro Universitário Metodista Bennett
Bachelor, Foreign Relations
Harvard Business School Online
Other; Certificate in Management Essentials
SKILLS
ABOUT GLEIDSON THULLER
Results-driven Engineering Manager with 20+ years of software development experience, including 7 years leading high-performing, cross-functional teams. Proven expertise in scaling distributed systems (1B+ daily requests), modernizing architectures (e.g, monolith to 38 microservices), and significantly improving system resilience (e.g. reducing incidents by 80%+) and delivery efficiency. Adept at fostering continuous team growth, optimizing Agile processes, and partnering with Product and Design to drive business-aligned outcomes. Combines deep technical acumen with strategic leadership to deliver impactful solutions. Core Competencies: People & Technical Leadership • Cross-functional Collaboration • Communication • Stakeholder & Delivery Management • Hiring • Coaching & Mentorship • Agile Methodologies • System Architecture • Product & Strategic Thinking • Engineering Efficiency • Team Growth
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