Backend Development & API Architecture
Platforms & Cloud
Programming & Frameworks
Databases & Caching
DevOps & CI/CD
Data Engineering
AI & Machine Learning
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
Freelance Services
Professional backend, cloud, and data engineering services tailored to your business needs. From scalable API development to AI/ML integration and cloud infrastructure optimization.
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.
View Backend ExpertiseAI/ML Integration Services
Machine learning implementation with Python using HuggingFace, LangChain, OpenCV, and TensorFlow for business automation, data analytics, and intelligent features.
View AI/ML ServicesCloud Infrastructure & DevOps
AWS/GCP architecture design with 30-40% cost reduction, Kubernetes orchestration, and CI/CD automation for reliable, scalable deployments.
View Cloud SolutionsData Pipeline Engineering
Robust ETL/ELT pipelines orchestrated with Apache Airflow, data warehousing on Snowflake, and analytics infrastructures with PySpark and Hadoop that deliver actionable business insights at scale.
View Data SolutionsExperience & Enterprise APIs
- Migration Architecture: Designed and implemented an enterprise-grade ETL pipeline orchestrated with Apache Airflow, 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
- 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 orchestrated with Apache Airflow, integrating with Snowflake for data warehousing across heterogeneous data sources
- API Enhancement: Implemented comprehensive versioning strategy ensuring smooth transitions
- Technical Excellence: Developed extensive test suites improving code quality by 35%
Project: PayPal / Venmo
- 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
- 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
- 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
Recommendations
"It was great working with Lobato at Dextra. He demonstrated excellent proficiency in Python, delivered quickly, created high-quality solutions, and always supported the business area with great dedication. Furthermore, he had an excellent relationship with the team, contributing to a collaborative, positive, and pleasant work environment. I highly recommend him as a professional!"
"Working with Henrique was an enriching experience. His expertise in Python is exceptional, and his ability to apply complex concepts in a practical and efficient way made a significant difference in the projects we collaborated on. Henrique demonstrated a unique talent for optimizing processes and finding innovative solutions to challenging problems. Beyond his technical proficiency, Henrique has a collaborative approach and was always willing to share his knowledge, helping to elevate the technical level of the entire team. His attention to detail, combined with his passion for development, makes him an indispensable professional in any tech team."
"Although we worked on different fronts in the development sector, Henrique was essential to my professional development. His way of explaining Linux, a very alien topic for me at the time, made me completely rethink the way I work, especially in automating repetitive tasks, as well as debugging and analyzing problems in the module I maintained, which runs mainly on Linux servers. In addition, his insights into Python development proved to be extremely valuable in my academic development, especially in data analysis projects. His way of explaining complex and abstract concepts is excellent. I can say without a doubt that he was one of the best tutors of my career and that I grew a lot professionally and academically thanks to his influence."
"I had the privilege of studying Engineering alongside Henry, and from the very beginning, it was clear that he was someone with exceptional intelligence and impressive dedication. His ability to grasp complex concepts and his capacity to lead his peers in academic activities always stood out. Over time, I’ve seen Henry evolve from a brilliant student into an extremely talented professional in the field of Python development. What impresses me most about Henry is the combination of his technical depth and his innovative approach to problem-solving. He doesn’t settle for simply solving challenges efficiently; he always seeks the most elegant and sustainable solution. His logical reasoning and attention to detail are qualities that make him a top-tier developer. More than that, he genuinely enjoys learning and constantly improving, which is one of his greatest strengths. Following Henry's journey has been a true inspiration. His evolution from an excellent student to a standout professional in the world of programming fills me with pride. Working with him is always an enriching experience, and I feel privileged to have had the opportunity to witness his growth and success firsthand."
"I had the privilege of working with Henrique at IK Tech, where his technical expertise and leadership truly stood out. As a Senior Software Engineer and founder, Henrique combines deep knowledge with a strategic mindset, consistently delivering innovative solutions to complex challenges. He’s not only a skilled engineer but also a mentor who fosters collaboration and drives success. I highly recommend Henrique for any team or project."
"Working with Henrique was undoubtedly one of the most positive experiences I’ve ever had. Beyond being a highly skilled professional with expertise in technologies such as Python, Django, Kubernetes, GCP, and AWS, Henrique also stands out as an incredible human being. His empathy, patience, and generosity are qualities that transform the work environment and make any challenge more manageable. Henrique is not just a technical problem solver — he is a true leader by example. Always willing to listen, help, and share knowledge, he inspires everyone around him to give their best. His ability to unite people and foster a strong team spirit is something rare and extremely valuable. Having the opportunity to work alongside someone so committed to excellence and, at the same time, so genuinely human was a privilege. Henrique not only adds value to projects but also to the people around him, leaving a positive impact wherever he goes. Any team would be fortunate to have him."
"Henry Lobato is a professional with a great desire to learn and always be up to date, contributing to his own growth and that of the company. It was an honor to work with him and I completely recommend to any company."
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.