Open to opportunities

Francisco Jair

@franciscojair

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Backend-focused Software Engineer with 4+ years of experience.

Brazil

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What I'm looking for

I am looking for a role that fosters innovation, collaboration, and growth opportunities.

As a backend-focused Software Engineer with over four years of experience, I have a proven track record of building scalable microservices, AI integrations, and high-volume ETL pipelines. My expertise in Python, Spark, and cloud-native DevOps has enabled me to significantly reduce data processing times by up to 75%, delivering intelligent systems for nationwide clients.

Currently, I serve as a Tech Lead at Proffer in Rio de Janeiro, where I lead the development of an AI-driven platform that analyzes product pricing across microregions. My role involves designing RESTful APIs for seamless data integration and implementing advanced filters and data export tools to enhance user experience. Previously, I was a Lead Software Engineer, where I developed a microservice that collected pharmaceutical prices across Brazil, achieving an impressive 86.67% performance improvement in ETL processing times.

My academic background includes a B.S. in Computer Science and ongoing M.S. studies in Intelligent Systems at the Federal University of Piauí. I am passionate about leveraging technology to solve complex problems and improve operational efficiency, and I continuously seek opportunities to innovate and contribute to impactful projects.

Experience

Work history, roles, and key accomplishments

Current

Tech Lead

Current

Proffer

Aug 2024 - Present (11 months)

Led the development and deployment of Monitoramento IA, an AI-driven platform that ingests and analyzes product pricing across microregions, generating real-time, personalized insights for strategic decision-making. Designed and deployed a RESTful API to expose processed data, allowing seamless system-to-system integration and supporting high-throughput real-time queries based on client geolocatio

AI RESTful APIs Agile Methodologies CI CD Pipelines Data Integration User Experience

Lead Software Engineer

Proffer

May 2023 - Present (2 years 2 months)

Spearheaded the design of a microservice responsible for the daily collection of over 67 million pharmaceutical prices across Brazilian cities, leveraging scalable architectures and parallel processing techniques. Developed a PySpark-based ETL pipeline to process over 27 million product records, reducing total ETL time from 5 hours to 40 minutes — a 86.67% performance improvement.

Microservices Pyspark ETL Scalability System Integration

Software Engineer Consultant

Infatec

Jan 2020 - Present (5 years 6 months)

Contributed to the architecture and rollout of data ingestion workflows with data validation and transformation stages, ensuring data quality and compliance with government health systems. Built a Django-based microservice using computer vision algorithms to automate the grading of multiple-choice exams, accelerating correction across 20+ municipalities and integrating results with existing educat

Data Ingestion Data Validation Django Computer Vision Apache Spark ETL Microservices

Undergraduate Research Student

UFPI

Sep 2019 - Present (5 years 10 months)

Engineered a web-based learning module using Django to support nephropathology education during medical residency, leveraging a structured case database to deliver dynamic, quiz-driven training content and improve student engagement. Designed and implemented a full-featured learning management system (LMS) with class and student management capabilities, integrated with an adaptive quiz engine that

Django Web Development Learning Management Systems (LMS)Database Management Educational Technology Student Engagement

Education

Degrees, certifications, and relevant coursework

Federal University of Piauí (UFPI)

M.S. in Intelligent Systems, Intelligent Systems

Currently pursuing a Master of Science degree in Intelligent Systems at the Federal University of Piauí. Focusing on advanced topics within intelligent systems.