Available to hire
I am a seasoned Senior Backend Engineer with over 15 years of experience in building scalable applications and utilizing cloud-native technologies. I have a passion for artificial intelligence and love solving complex problems with innovative solutions. My journey has taken me through various roles in engineering, and I enjoy collaborating with teams to deliver high-quality results.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Language
Javanese
Fluent
Portuguese
Fluent
English
Fluent
Spanish; Castilian
Fluent
Work Experience
Full Stack Engineer at CIT
November 1, 2025 - March 1, 2026Developed and maintained scalable backend applications using Java and Spring Boot based on microservices architecture. Implemented secure and high-performance REST APIs for distributed systems integration.
Full Stack Engineer & AI Specialist at SchiefAI
January 31, 2025 - October 13, 2025Designed and deployed GenAI APIs with LangChain, OpenAI, and vector databases to automate document workflows, achieving a ~40% reduction in manual processing time. Built Spring Boot and FastAPI microservices with AWS and Databricks integrations for scalable cloud deployments. Implemented asynchronous ingestion pipelines using Python asyncio to process thousands of concurrent events in real time. Delivered high-concurrency APIs in Golang, reducing system latency by ~25%.
Full Stack Engineer & AI Specialist at SchiefAI
January 31, 2025 - July 9, 2025Developed GenAI-based APIs using LangChain and LLMs for automation and knowledge retrieval. Built microservices with Spring Boot and FastAPI using Django, deployed on AWS and Azure Databricks. Implemented high-performance backend components in Golang, optimizing concurrency and reducing API latency. Designed RAG pipelines with vector databases and OpenAI API. Utilized asyncio, FastAPI async routes, and event loops to build non-blocking data ingestion services.
Full Stack Engineer & AI Specialist at chiefAI
January 31, 2025 - July 9, 2025Developed GenAI-based APIs using LangChain and LLMs for automation, semantic search, and enterprise knowledge retrieval. Built microservices with Spring Boot and FastAPI using Django, deployed solutions on AWS and Azure Databricks. Optimized backend performance with Golang and concurrency improvements, created AI-driven chatbots, and implemented RAG pipelines with vector databases.
Full Stack Engineer & AI Specialist at chiefAI
January 31, 2025 - July 9, 2025Developed GenAI-based APIs using LangChain and LLMs for automation, semantic search, and enterprise knowledge retrieval. Built microservices with Spring Boot and FastAPI using Django, deployed solutions on AWS and Azure Databricks. Implemented high-performance backend components in Golang optimizing concurrency and reducing API latency. Created AI-driven chatbots and implemented RAG pipelines with vector databases.
Full Stack Engineer & AI Specialist at SchiefAI
January 1, 2025 - January 1, 2025Designed and deployed GenAI APIs with LangChain, OpenAI, and vector databases to automate document workflows, reducing manual time by 40%. Built microservices in Spring Boot and FastAPI with AWS and Databricks for scalable cloud deployments. Implemented asynchronous ingestion pipelines with Python asyncio handling thousands of concurrent events and delivered high-concurrency APIs in Golang to reduce latency by 25%.
Full Stack Engineer & AI Specialist at SchiefAI
January 1, 2025 - October 23, 2025Designed and deployed GenAI APIs using LangChain, OpenAI, and vector databases to automate document workflows, reducing manual work by 40%. Built microservices with Spring Boot and FastAPI, integrated with AWS and Databricks for scalable cloud deployments. Implemented asynchronous ingestion pipelines with Python asyncio handling thousands of concurrent events and delivered high-concurrency Golang APIs reducing latency by 25%.
Full-Stack Developer & AI/Data Consultant at Freelancer
December 31, 2024 - October 23, 2025Developed full-stack apps for healthcare and e-commerce with React/Angular frontends and FastAPI/Node.js backends. Built recommendation systems and interactive dashboards; created custom chatbots and RAG pipelines with LangChain + OpenAI API, cutting support workload by up to 35%. Automated ETLs with scraping, multiprocessing, and threading to reduce report generation time from hours to minutes.
Full-Stack Developer & AI/Data Consultant at Freelancer – Remote
December 31, 2024 - October 13, 2025Developed full-stack applications with React/Angular frontends and FastAPI/Node.js backends for healthcare and e-commerce clients. Built recommendation systems and interactive dashboards with TypeScript, RxJS, and React Hooks, increasing user engagement by ~30%. Created custom chatbots and RAG pipelines with LangChain + OpenAI API, reducing support workload by up to 35%. Automated ETLs with scraping, multiprocessing, and threading, cutting report generation from hours to minutes.
Python AI Developer & Data Scientist at Freelancer
December 31, 2024 - July 9, 2025Delivered AI applications and automation solutions using LangChain and OpenAI APIs. Built recommendation systems, web scraping pipelines using multiprocessing and threading for performance. Created BI dashboards and ETL jobs for clients in healthcare and e-commerce sectors. Used asyncio and background tasks to integrate concurrent REST and websocket-based data streams.
AI Developer & Backend Engineer (Python / C#) at Freelancer
December 31, 2024 - July 9, 2025Delivered AI applications and automation solutions using LangChain, OpenAI APIs, and large language models. Built recommendation systems, document analyzers, and chatbot integrations using Python and FastAPI. Created RESTful APIs with C# and .NET Core, managed data layers with Entity Framework and PostgreSQL, and automated deployments using GitHub Actions and Docker.
Full Stack Engineer | AI Specialist at SchiefAI
October 1, 2024 - January 1, 2025Designed and deployed GenAI-powered REST APIs using LangChain, OpenAI, and vector databases, reducing manual document processing time by 40%. Developed scalable microservices using Spring Boot and FastAPI for distributed cloud-native systems.
Full Stack Engineer & AI Specialist at chiefAI
October 1, 2024 - January 31, 2025Designed and deployed GenAI APIs with LangChain, OpenAI, and vector databases, automating document workflows and reducing manual time by 40%. Developed microservices in Spring Boot and FastAPI, integrated with AWS and Databricks, enabling scalable cloud deployments. Built asynchronous ingestion pipelines with Python asyncio and event loops, processing thousands of concurrent events in real time. Delivered high-concurrency APIs in Golang, reducing system latency by 25%.
AI Developer & Backend Engineer (Python / C#) at Freelancer
January 31, 2024 - July 9, 2025Delivered AI applications and automation solutions using LangChain, OpenAI APIs, and LLMs. Built recommendation systems, document analyzers, and chatbot integrations using Python and FastAPI. Created RESTful APIs with C# and .NET Core for logistics and financial tools. Used Entity Framework and PostgreSQL to manage robust data layers; automated deployments via GitHub Actions and Docker.
Full-Stack Developer & AI/Data Consultant at Freelancer
January 1, 2024 - January 1, 2024Developed full-stack apps with React/Angular frontends and FastAPI/Node.js backends for healthcare and e-commerce clients. Built recommendation systems and dashboards with TypeScript, RxJS, and React Hooks; created custom chatbots and RAG pipelines with LangChain + OpenAI API; automated ETLs with scraping and multiprocessing, cutting report generation from hours to minutes.
Java Software Engineer at Qintess
July 31, 2023 - October 13, 2025Developed serverless microservices in AWS Lambda with DynamoDB and Docker, reducing infrastructure costs by ~20%. Implemented Master Data Management pipelines in PL/SQL, increasing data reliability. Ensured high availability with deduplication and idempotent workflows.
Java Software Engineer at Qintess
July 31, 2023 - July 9, 2025Developed systems using AWS Lambda, S3, DynamoDB, and Docker. Maintained enterprise data pipelines with PL/SQL and MDM tools. Applied message deduplication and idempotent operations to ensure reliable delivery in AWS-based flows.
Java Software Engineer at Qintess
July 31, 2023 - July 9, 2025Developed systems with AWS Lambda, S3, and Docker. Worked with master data management and PL/SQL for enterprise data governance.
Java Software Engineer at Qintess
July 31, 2023 - July 9, 2025Developed systems using AWS Lambda, S3, and Docker. Worked with MDM and PL/SQL for enterprise data governance.
Java Software Engineer at Qintess
July 1, 2023 - July 1, 2023Developed serverless microservices in AWS Lambda with DynamoDB and Docker; implemented Master Data Management pipelines in PL/SQL; ensured high availability with deduplication and idempotent workflows.
Java Software Engineer at Qintess
July 1, 2023 - October 23, 2025Developed serverless microservices on AWS Lambda with DynamoDB and Docker; implemented Master Data Management pipelines in PL/SQL and ensured high availability with deduplication and idempotent workflows.
Full-Stack Developer | AI/Data Consultant at Freelancer
January 1, 2023 - January 1, 2024Developed full-stack applications using React, Angular, and Node.js. Built responsive user interfaces and created recommendation systems that increased user engagement by 30%.
Full-Stack Developer & AI/Data Consultant at Freelancer
January 1, 2023 - December 31, 2024Developed full-stack applications with React/Angular frontends and FastAPI/Node.js backends for healthcare and e-commerce clients. Built recommendation systems and interactive dashboards with TypeScript, RxJS, and React Hooks, increasing user engagement by 30%. Created custom chatbots and RAG pipelines with LangChain + OpenAI API, reducing support workload by up to 35%. Automated ETLs with scraping, multiprocessing, and threading, cutting report generation from hours to minutes.
Java Software Engineer at Qintess
November 1, 2022 - July 1, 2023Developed serverless microservices in AWS Lambda with DynamoDB and Docker, reducing infrastructure costs by 20%. Implemented Master Data Management pipelines in PL/SQL, increasing data reliability. Ensured high availability with deduplication and idempotent workflows.
Java Software Engineer at Accenture
April 30, 2022 - October 23, 2025Developed AWS-native microservices with Node.js (API Gateway + Kinesis) for large-scale event processing; reduced deployment time by 40% using Docker and Jenkins CI/CD automation; improved event-driven pipeline performance with concurrency controls.
Java Software Engineer at Accenture
April 30, 2022 - October 13, 2025Developed AWS-native microservices with Node.js (API Gateway + Kinesis) for large-scale event processing. Reduced deployment time by ~40% with Docker and Jenkins CI/CD automation. Improved event-driven pipeline performance with concurrency control.
Java Software Engineer at Accenture
April 30, 2022 - July 9, 2025Built scalable Node.js-based microservices with AWS API Gateway and Lambda. Reduced deployment time by 40% through Jenkins-based CI/CD and Docker containerization. Developed services that consumed high-throughput events from AWS Kinesis and processed them concurrently.
Java Software Engineer at Accenture
April 30, 2022 - July 9, 2025Built scalable microservices using Node.js integrated via API Gateway. Reduced deployment times significantly by implementing CI/CD pipelines with Jenkins and Docker.
Java Software Engineer at Accenture
April 30, 2022 - July 9, 2025Built scalable microservices using Node.js, integrated via API Gateway. Reduced deployment time by 40% through CI/CD with Jenkins and Docker.
Java Software Engineer at Accenture
April 1, 2022 - April 1, 2022Developed AWS-native microservices with Node.js (API Gateway + Kinesis) for large-scale event processing; reduced deployment time by 40% with Docker and Jenkins CI/CD automation; improved event-driven pipeline performance with concurrency control.
Software Engineer at ITI – National Institute of Information Technology
May 31, 2021 - October 13, 2025Built secure Python APIs with JWT authentication for the national digital certification system. Implemented event-driven asynchronous pipelines for background validation across millions of users.
Software Engineer at National Institute of Information Technology (ITI)
May 31, 2021 - July 9, 2025Created secure Python APIs for the national certification system using JWT and AWS Lambda. Designed non-blocking background validation using event-driven patterns and message queues.
Software Engineer at National Institute of Information Technology (ITI)
May 31, 2021 - July 9, 2025Created secure Python-based APIs for the national certification authority using AWS Lambda and JWT.
Software Engineer at National Institute of Information Technology (ITI)
May 31, 2021 - July 9, 2025Created secure Python-based APIs for the national certification authority using AWS Lambda and JWT.
Java Software Engineer at Accenture
May 1, 2021 - April 1, 2022Developed AWS-native microservices with Node.js (API Gateway + Kinesis) for large-scale event processing. Reduced deployment time by 40% with Docker and Jenkins CI/CD automation. Improved event-driven pipeline performance with concurrency control.
Software Engineer at ITI – National Institute of Information Technology
May 1, 2021 - May 1, 2021Built secure Python APIs with JWT authentication for the national digital certification system. Implemented event-driven asynchronous pipelines for background validation across millions of users.
Software Engineer at ITI – National Institute of Information Technology
May 1, 2021 - October 23, 2025Built secure Python APIs with JWT authentication for the national digital certification system; implemented event-driven asynchronous pipelines for background validation across millions of users.
Software Engineer at ITI
February 1, 2021 - May 1, 2021Developed secure REST APIs with Python and implemented asynchronous event-driven pipelines for large-scale validation systems.
Big Data Analyst at Tecnisys
December 31, 2018 - October 23, 2025Led Big Data projects with Hadoop, Kafka, and Python; delivered real-time dashboards and automated asynchronous data pipelines, reducing downtime.
Big Data Analyst at Tecnisys
December 31, 2018 - October 13, 2025Led Big Data projects with Hadoop, Kafka, and Python, delivering real-time dashboards. Automated asynchronous data pipelines, reducing downtime by 15%.
Big Data Analyst at Tecnisys Innovative Technologies
December 31, 2018 - July 9, 2025Led Big Data processing workflows using Python, Hadoop, and asynchronous job orchestration. Developed dashboards and analytics with real-time updates using Kafka consumers and scheduled parallel jobs. Designed retry mechanisms and fallback logic to ensure reliable analytics delivery.
Big Data Analyst at Tecnisys Innovative Technologies
December 31, 2018 - July 9, 2025Led big data processing projects using Python and Hadoop. Built real-time dashboards and implemented master data management solutions.
Big Data Analyst at Tecnisys Innovative Technologies
December 31, 2018 - July 9, 2025Led Big Data processing using Python and Hadoop. Built real-time dashboards and implemented MDM solutions.
Big Data Analyst at Tecnisys
December 1, 2018 - December 1, 2018Led Big Data projects with Hadoop, Kafka, and Python, delivering real-time dashboards. Automated asynchronous data pipelines, reducing downtime by 15%.
BI Analyst at ENAP – National School of Public Administration
July 31, 2018 - October 23, 2025Created demographic dashboards with R, Pentaho, and Hadoop to support strategic decision-making; served as Scrum Master, introducing agile methods and accelerating deliveries by 25%.
BI Analyst at ENAP – National School of Public Administration
July 31, 2018 - October 13, 2025Created demographic dashboards with R, Pentaho, and Hadoop to support strategic decision-making. Served as Scrum Master, introducing agile methods and accelerating deliveries by 25%.
BI Analyst & Internal Tools Developer (C#) at ENAP
July 31, 2018 - July 9, 2025Led BI and demographic studies using R, Python, Pentaho, and Hadoop. Developed internal reporting tools in C# WinForms and .NET for data visualization and PDF generation. Introduced Agile practices and acted as Scrum Master.
BI Analyst & Internal Tools Developer (C#) at ENAP
July 31, 2018 - July 9, 2025Led BI and demographic studies using R, Python, Pentaho, and Hadoop. Built internal reporting tools in C# WinForms and .NET for data visualization and PDF generation. Introduced Agile culture and acted as Scrum Master.
BI Analyst at ENAP – National School of Public Administration
July 1, 2018 - July 1, 2018Created demographic dashboards with R, Pentaho, and Hadoop to support strategic decision-making. Served as Scrum Master, introducing agile methods and accelerating deliveries by 25%.
BI Analyst at ENAP
May 1, 2017 - July 1, 2018Built data dashboards using R and Pentaho. Implemented agile methodologies to improve delivery speed.
BI Analyst at ENAP – National School of Public Administration
May 1, 2017 - July 1, 2018Created demographic dashboards with R, Pentaho, and Hadoop to support strategic decision-making. Served as Scrum Master, introducing agile methods and accelerating deliveries by 25%.
Software Engineer at Inova Telecom
July 31, 2016 - October 23, 2025Developed the backend of Brasília’s emergency dispatch system in Java and Spark; implemented event-sourcing pipelines and streaming processing with real-time metrics.
Software Engineer at Inova Telecom
July 31, 2016 - October 13, 2025Developed the backend of Brasília’s emergency dispatch system in Java and Spark, reducing response-related fatalities by 30%. Implemented event-sourcing pipelines and streaming processing with real-time metrics.
Software Engineer at Inova Telecomunicações e Sistemas
July 31, 2016 - July 9, 2025Led backend development of Brasília’s emergency dispatch system using Java and Spark. Applied event sourcing and stream processing to support real-time data flow. Delivered interactive dashboards using AWS, reducing fatality rates by 30%.
Software Engineer at Inova Telecomunicações e Sistemas
July 31, 2016 - July 9, 2025Led development of Brasília’s ambulance system backend using Java and Spark. Initiated data-driven culture, leading to a 30% reduction in fatality rates and 20% cut in costs. Delivered real-time visual dashboards and handled AWS analytics integrations.
Software Engineer at Inova Telecomunicações e Sistemas
July 31, 2016 - July 9, 2025Led development of Brasília’s ambulance system backend using Java and Spark. Initiated a data-driven culture, reducing fatality rates by 30% and costs by 20%. Delivered real-time visual dashboards and used AWS for analytics.
Software Engineer at Inova Telecom
July 1, 2016 - July 1, 2016Developed the backend of Brasília’s emergency dispatch system in Java and Spark, reducing response-related fatalities by 30%. Implemented event-sourcing pipelines and streaming processing with real-time metrics.
Software Engineer at Inova Telecom
January 1, 2014 - July 1, 2016Developed the backend of Brasília’s emergency dispatch system in Java and Spark, reducing response-related fatalities by 30%. Implemented event-sourcing pipelines and streaming processing with real-time metrics.
Education
Master’s in Computer Science at Maharishi Institute of Management
January 1, 2019 - December 31, 2021Bachelor’s in Mathematics at Instituto Cotemar
January 1, 2018 - December 31, 2018Bachelor’s in Mechatronic Engineering at University of Brasília
January 1, 2009 - December 31, 2016Master’s at Maharishi Institute of Management
January 1, 2019 - December 31, 2021Bachelor’s at Instituto Cotemar
January 1, 2018 - December 31, 2018Bachelor’s at University of Brasília
January 1, 2009 - December 31, 2016Master’s in Computer Science at Maharishi Institute of Management
January 1, 2019 - December 31, 2021Bachelor’s in Mathematics at Instituto Cotemar
January 1, 2018 - December 31, 2018Bachelor’s in Mechatronic Engineering at University of Brasília
January 1, 2009 - December 31, 2016Master's in Computer Science at Maharishi Institute of Management
January 1, 2019 - January 1, 2021Bachelor's in Mathematics at Instituto Cotemar
January 11, 2030 - January 1, 2018Bachelor's in Mechatronics Engineering at University of Brasília
January 1, 2009 - January 1, 2016Master's in Computer Science at Maharishi Institute of Management
January 1, 2019 - December 31, 2021Bachelor’s in Mathematics at Instituto Cotemar
January 1, 2018 - December 31, 2018Bachelor’s in Mechatronics Engineering at University of Brasília
January 1, 2009 - December 31, 2016Master’s in Computer Science at Maharishi Institute of Management
January 1, 2019 - January 1, 2021Bachelor’s in Mathematics at Instituto Cotemar
January 1, 2018 - January 1, 2018Bachelor’s in Mechatronics Engineering at University of Brasília
January 1, 2009 - January 1, 2016Master’s in Computer Science at Maharishi Institute of Management
January 1, 2019 - January 1, 2021Bachelor’s in Mathematics at Instituto Cotemar
January 1, 2018 - January 1, 2018Bachelor’s in Mechatronics Engineering at University of Brasília
January 1, 2009 - January 1, 2016Master’s in Computer Science at Maharishi Institute of Management
January 1, 2019 - January 1, 2021Bachelor’s in Mathematics at Instituto Cotemar
January 1, 2018 - January 1, 2018Bachelor’s in Mechatronics Engineering at University of Brasília
January 1, 2009 - January 1, 2016Master's in Computer Science at Maharishi Institute of Management
January 11, 2030 - July 2, 2026Bachelor's in Mathematics at Instituto Cotemar
January 11, 2030 - July 2, 2026Bachelor's in Mechatronics Engineering at University of Brasília
January 11, 2030 - July 2, 2026Qualifications
AWS Lambda Development – AWS
January 11, 2030 - July 9, 2025Data Scientist – DataCamp
January 11, 2030 - July 9, 2025Scrum Master – Udemy
January 11, 2030 - July 9, 2025DevSecOps Fundamentals – Cloud Academy
January 11, 2030 - July 9, 2025Functional Java – CoffeeAndIt
January 11, 2030 - July 9, 2025AWS Lambda Development – AWS
January 11, 2030 - July 9, 2025Data Scientist – DataCamp
January 11, 2030 - July 9, 2025Scrum Master – Udemy
January 11, 2030 - July 9, 2025DevSecOps Fundamentals – Cloud Academy
January 11, 2030 - July 9, 2025Functional Java – CoffeeAndIt
January 11, 2030 - July 9, 2025AWS Lambda Development
January 1, 2023 - December 31, 2023Data Scientist
January 1, 2023 - December 31, 2023Scrum Master
January 1, 2023 - December 31, 2023DevSecOps Fundamentals
January 1, 2023 - December 31, 2023Functional Java
January 1, 2023 - December 31, 2023AWS Lambda Development
January 11, 2030 - October 13, 2025Data Scientist
January 11, 2030 - October 13, 2025Scrum Master
January 11, 2030 - October 13, 2025DevSecOps Fundamentals
January 11, 2030 - October 13, 2025Functional Java
January 11, 2030 - October 13, 2025AWS Lambda Development
January 11, 2030 - October 23, 2025AWS Data Scientist – DataCamp
January 11, 2030 - October 23, 2025Scrum Master – Udemy
January 11, 2030 - October 23, 2025DevSecOps Fundamentals – Cloud Academy
January 11, 2030 - October 23, 2025Functional Java – CoffeeAndIt
January 11, 2030 - October 23, 2025AWS Lambda Development
January 11, 2030 - October 30, 2025Data Scientist
January 11, 2030 - October 30, 2025Scrum Master
January 11, 2030 - October 30, 2025DevSecOps Fundamentals
January 11, 2030 - October 30, 2025Functional Java
January 11, 2030 - October 30, 2025AWS Lambda Development
January 11, 2030 - November 24, 2025AWS Data Scientist
January 11, 2030 - November 24, 2025Scrum Master
January 11, 2030 - November 24, 2025DevSecOps Fundamentals
January 11, 2030 - November 24, 2025Functional Java
January 11, 2030 - November 24, 2025AWS Lambda Development – AWS
January 11, 2030 - December 8, 2025Data Scientist – DataCamp
January 11, 2030 - December 8, 2025Scrum Master – Udemy
January 11, 2030 - December 8, 2025DevSecOps Fundamentals – Cloud Academy
January 11, 2030 - December 8, 2025Functional Java – CoffeeAndIt
January 11, 2030 - December 8, 2025AWS Lambda Development
January 11, 2030 - July 2, 2026Data Scientist
January 11, 2030 - July 2, 2026Scrum Master
January 11, 2030 - July 2, 2026DevSecOps Fundamentals
January 11, 2030 - July 2, 2026Industry Experience
Software & Internet, Government, Financial Services, Healthcare, Transportation & Logistics, Professional Services, Media & Entertainment, Telecommunications, Education, Computers & Electronics
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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