Backend Development & API Architecture

Platforms & Cloud

AWS GCP Docker Kubernetes Snowflake

Programming & Frameworks

Python Developer Django REST Flask FastAPI JavaScript

Databases & Caching

PostgreSQL MySQL SQLAlchemy Redis DynamoDB

DevOps & CI/CD

GitHub Actions Jenkins Terraform CloudFormation Prometheus

Data Engineering

Apache Spark PySpark Hadoop ETL Pipelines Data Validation

AI & Machine Learning

Langchain HuggingFace OpenCV TensorFlow Keras

API Development & Cloud Infrastructure

With over a decade of experience delivering high-impact backend solutions, I specialize in building scalable, robust APIs that solve complex business challenges. As a freelance Python consultant, my work has directly contributed to:

Accelerated API Performance

45-85% improvement in response times for client projects

Cloud Cost Optimization

30-40% decrease in infrastructure costs for startups

Secure Backend Architecture

SOC2 compliance and robust API security implementations

Technology Stack

Most Used Languages

Freelance Services

Scalable Backend API Development

Custom REST and GraphQL APIs built with Django and FastAPI for startups and enterprises. Microservices architecture that scales to millions of users with high performance.

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AI/ML Integration Services

Machine learning implementation with Python using HuggingFace, LangChain, OpenCV, and TensorFlow for business automation, data analytics, and intelligent features.

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Cloud Infrastructure & DevOps

AWS/GCP architecture design with 30-40% cost reduction, Kubernetes orchestration, and CI/CD automation for reliable, scalable deployments.

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Data Pipeline Engineering

Robust ETL/ELT pipelines, data warehousing, and analytics infrastructures with PySpark, Hadoop, and Snowflake that deliver actionable business insights.

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Freelance Projects & Enterprise APIs

OneTrust — Senior Python Developer Sep 2023 – Present | Remote, USA
Privacy and compliance software platform
Led the development of a mission-critical data migration platform following OneTrust's acquisition of Convercent, a major compliance management platform. The challenge involved migrating terabytes of sensitive compliance data across different database schemas while maintaining strict data integrity and privacy requirements.
Key Contributions:
  • Migration Architecture: Designed and implemented an enterprise-grade ETL pipeline achieving 99.9% data accuracy with zero privacy violations
  • Technical Challenges: Developed a flexible mapping engine handling schema transformations across 50+ complex data types
  • Performance Optimization: Reduced data processing time by 45% through parallel batch processing
  • Implementation: Created robust Django APIs with PostgreSQL integrations handling 100+ custom fields
  • Infrastructure: Designed Kubernetes-based client tools deployable in various environments, including air-gapped networks
Successfully migrated 20+ enterprise clients with zero data loss incidents, accelerating time-to-value for acquired customer base.
Python Django PostgreSQL Kubernetes AWS Docker Microservices
SecurityScorecard — Senior Python Developer Apr 2022 – Sep 2023 | Remote, USA
Cybersecurity rating platform
Enhanced their cybersecurity rating platform, which continuously monitors and assesses the security posture of organizations worldwide. Tackled challenges in scaling data collection infrastructure and making complex security insights more accessible to business users.
Key Contributions:
  • AI Integration: Built a Langchain-powered chatbot with FastAPI for non-technical users to interact naturally with security data
  • Infrastructure Scaling: Implemented microservices handling 1M+ hourly API requests with 99.95% uptime
  • Data Pipeline Development: Created resilient ingestion pipelines across heterogeneous data sources
  • API Enhancement: Implemented comprehensive versioning strategy ensuring smooth transitions
  • Technical Excellence: Developed extensive test suites improving code quality by 35%
Systems contributed to a 30% increase in API usage and enabled the platform to handle 3x more vendors per customer.
Python Django Langchain FastAPI Snowflake AWS Jenkins Docker
IKTech — Senior Python Developer & Cloud Architect Jul 2020 – Present | Remote, USA
Consulting firm with projects for Fortune 500 clients

Project: PayPal / Venmo

Strengthened authentication flows for Venmo's financial transaction systems handling millions of daily transfers, improving security while maintaining seamless user experience.
  • Security Enhancement: Created Python validation decorators preventing common attack vectors
  • Testing Framework: Developed comprehensive QA testing for 20+ edge case scenarios
  • Infrastructure: Deployed CI/CD pipelines using Kubernetes and SSO workflows

Project: ProbiusDx

Led cloud migration for a bioinformatics startup analyzing medical diagnostic data, optimizing performance for compute-intensive analysis while ensuring regulatory compliance.
  • Cloud Migration: Migrated services from Azure to AWS, reducing costs by 40%
  • Architecture: Designed microservices with 99.9% uptime serving 100K+ daily API requests
  • ML Integration: Built real-time analysis pipelines with sub-second response times
Reduced fraudulent authentication attempts while accelerating time-to-market for critical diagnostics platform.
Python Flask SQLAlchemy AWS Docker Jenkins Kubernetes OpenCV Keras
Previous Experience — Senior Roles in Python Development 2016 – 2021 | Various Locations
  • BairesDev: Modernized legacy systems to AWS serverless infrastructure, reducing costs by 40%
  • Dextra Digital: Built PySpark/Hadoop ML pipelines processing 10M+ daily records for Serasa Experian
  • GPr Sistemas: Developed SNMP-based monitoring banking network devices
  • Sintecsys: Created wildfire detection system that detected 500+ early-stage fires
  • Multiway: Built ALPR system processing 1M+ vehicles daily with 98% detection accuracy
Python Django Flask PySpark Hadoop AWS PostgreSQL TensorFlow OpenCV

Ready to Build Something Amazing?

I help businesses build reliable, high-performance technical solutions that solve real problems. Whether you need scalable APIs, cloud cost optimization, or AI integration, let's discuss how I can deliver measurable value to your project.

99.9% uptime for mission-critical systems
30-40% cloud infrastructure cost reduction
High-performance APIs handling millions of requests
Comprehensive testing and documentation
Schedule a Free Consultation Email Me About Your Project

Education & Certifications

B.Sc. Computer Science
University of London
2023
Software Analyst
USF
2017–2020
AWS Certified Cloud Practitioner
2021
Professional Pentest Certifications
Desec Security
2017
Modern Web Exploitation
Alura
100+ hours
Advanced PostgreSQL Administration & Performance Tuning

Languages

🇧🇷 Portuguese (Native)
🇺🇸 English (Advanced)
🇷🇺 Russian (Basic)