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Lucas Theo

@lucastheo

Backend-focused software engineer with hands-on experience in data-intensive systems.

Brazil
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What I'm looking for

I am looking for remote opportunities that foster collaboration, innovation, and growth.

I am a dedicated Backend Developer with over 4 years of experience in backend and full-stack development. My journey began with a Bachelor's Degree in Computer Science, followed by a Postgraduate program in Software Engineering. I have a strong passion for clean architecture and pragmatic problem-solving, which has driven my success in delivering scalable and high-performance systems.

Currently, I work at BigDataCorp as a Development Analyst, where I develop and maintain RESTful APIs using Python (FastAPI) and C# (.NET Core). My role involves optimizing data ingestion and transformation services, ensuring data integrity across distributed systems, and participating in Agile ceremonies. I take pride in my ability to implement asynchronous processing and caching layers, which have improved API response times by over 40%.

Previously, I served as a Full Stack Developer at ACCO Brands (Tilibra), where I developed internal systems using Oracle and Microsoft SQL Server. My contributions included refactoring legacy code to reduce system downtime and integrating dashboards for real-time performance tracking. I am fluent in English and currently seeking international remote opportunities to further my career.

Experience

Work history, roles, and key accomplishments

BI
Current

Development Analyst

BigDataCorp

Oct 2024 - Present (1 year 8 months)

Developed and maintained RESTful APIs using Python (FastAPI) and C# (.NET Core) to power real-time data ingestion and transformation services. Integrated PostgreSQL and MongoDB databases, optimizing indexing strategies and ensuring data integrity across distributed systems.

AT

Full Stack Developer

ACCO Brands (Tilibra)

Jan 2021 - Present (5 years 5 months)

Developed and maintained internal systems using Oracle11g/19c and Microsoft SQL Server, ensuring data integrity and high performance for enterprise applications. Refactored legacy Java/PLSQL code, reducing system downtime by 65%.

Education

Degrees, certifications, and relevant coursework

Pontifical Catholic University of Rio de Janeiro (PUC-Rio) logoPP

Pontifical Catholic University of Rio de Janeiro (PUC-Rio)

Postgraduate in Software Engineering, Software Engineering

2025 -

Currently pursuing a postgraduate degree in Software Engineering, focusing on advanced concepts and practices in software development. This program enhances my expertise in building robust and scalable software solutions.

UB

USC - Brazil

Bachelor’s Degree in Computer Science, Computer Science

2019 - 2022

Completed a Bachelor’s Degree in Computer Science, gaining a strong foundation in computer science principles. This included coursework in algorithms, data structures, and software development methodologies.

UR

UNESP - ETEC Isaac Portal Roldán

Technical Degree in Electronics, Electronics

2014 - 2016

Obtained a Technical Degree in Electronics, providing a solid understanding of electronic systems and hardware. This program developed my skills in technical problem-solving and practical application of electronic principles.

Tech stack

Software and tools used professionally

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