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Leonardo KrugerLK
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Leonardo Kruger

@leonardokruger

Software Engineer at 200DEV for Banco BV, improving banking API resilience and cutting UAT request costs by 90%.

Brazil
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At 200DEV, I engineered fallback routines for Banco BV’s Java 21 and Spring Boot banking APIs, supporting continuity during external service failures across more than 16,500 weekly transactions. I also developed mock services that reduced UAT request costs by 90% and removed delivery delays of one to two days.

At 200DEV, I advanced Datadog monitoring and resolved critical incidents in real time. I worked with Docker, Kubernetes, and GCP deployments, and participated in developing event-driven microservices with Kafka.

At Cedro Technologies, I technically evolved high-availability microservices for BTG Pactual’s fixed-income product management. I participated in System Design discussions, conducted code reviews, mentored developers, and architected automated bulk rate configuration.

Earlier, I engineered ETL pipelines at Bradesco, developed meteorological APIs and hydrological dashboards at Sistema Meteorológico do Paraná - SIMEPAR, and built REST APIs and an OpenAI API-powered chatbot for YUR’s health and fitness app.

Experience

Work history, roles, and key accomplishments

YU

Full Stack Developer

YUR

Nov 2022 - Jan 2023 (2 months)

Built back-end systems and integrations for a health and fitness mobile application. Engineered an OpenAI API-powered chatbot with domain-specific content filters and mitigated AI processing latency.

Bradesco logoBR

Software Engineer

Bradesco

May 2021 - Oct 2022 (1 year 5 months)

Engineered ETL pipelines using Python and Flask, saving over 4 hours weekly on manual Business Intelligence data processing. Configured an internal Git server bypassing corporate network restrictions.

EU

Executive VP / QA Analyst / Web Developer

Ecomp - Empresa Júnior de Informática da UFPR

Feb 2018 - Apr 2019 (1 year 2 months)

Executive leadership, code review, and web development applied to junior enterprise projects.

Education

Degrees, certifications, and relevant coursework

Universidade Federal do Paraná logoUP

Universidade Federal do Paraná

Bachelor's Degree, Computer Science

Ongoing Bachelor's degree in Computer Science, expected to complete in December 2027.

freeCodeCamp logoFR

freeCodeCamp

Back End Development and APIs, Back End Development

Completed the Back End Development and APIs certification in 2023.

Alura logoAL

Alura

HTTP: Understanding the Web Under the Hood, Web Development

Completed the HTTP: Understanding the Web Under the Hood certification in 2018.

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