Rubens C
Back-End Developer
LOCATION
Brazil
With nearly 10 years of engineering experience, Rubens brings a blend of multidisciplinary expertise and software development excellence. He is proficient in Golang, Python, SQL, and cloud technologies including Docker, Kafka, and the Azure suite. Starting his career as a Senior Mechanical Engineer in the healthcare industry, he later transitioned to software engineering for a telecom leader, managing high-volume data pipelines across large-scale networks. Most recently, he has excelled as a Senior Software Engineer in fintech, designing scalable backend microservices, optimizing database operations, building event-driven architectures, and implementing secure API integrations.
Rubens combines strong technical skills with leadership and collaboration, having guided teams in mechanical systems, mentored students as a university instructor, and worked effectively with international cross-functional teams. His multidisciplinary background and proven software engineering capabilities make him a highly adaptable and impactful candidate for complex technical challenges, particularly in fintech and high-performance backend systems.
AWS
SQL
Python
Azure
Databricks
Golang
Team interview
Technical Challenge
Professional Experiences
Skyworks Inc. – Atlas Project (through Trio)
Python Developer
Apr 2025 - Oct 2025
United States
Azure FunctionsPythonDatabricksAzurePascal- Legacy System Migration: Developed Python solutions for the Atlas Project, migrating a large-scale legacy Pascal codebase into cloud-native serverless architectures and modern backend systems.
- Serverless Architecture: Designed and deployed serverless functions using Azure Functions, replacing legacy Pascal code and creating scalable backend systems for data workflows.
- Big Data Processing: Implemented data processing pipelines using Databricks and PySpark for large-scale data transformation with optimized performance.
- Backend Development: Built robust backend systems and parsers to clean, transform, and process large datasets during the migration to modern cloud infrastructure.
- Azure Cloud Ecosystem: Leveraged Azure services including Azure Functions, Databricks, and Azure Storage to create efficient, scalable data engineering solutions for enterprise-level migration.
Stone Co.
Senior Software Engineer
Sep 2024 - Apr 2025
United States
CI/CDGrafanaFintechGolangDataDogDockerKubernetes- Scalable Backend Development: Specialized in backend engineering with Golang, creating high-performance, secure microservices for Open Finance and Core Banking systems. Designed and implemented RESTful and gRPC APIs for efficient service communication.
- Database Design and Optimization: Expertise in PostgreSQL schema design, query optimization, and indexing strategies for low-latency operations.
- Event-Driven Architectures: Used Apache Kafka to build event-driven architectures enabling real-time data processing and reliable microservice integration.
- Concurrency and Performance: Leveraged Go’s concurrency features, including goroutines and channels, to handle high transaction volumes and concurrent requests.
- Infrastructure and Deployment: Implemented CI/CD pipelines and containerization using Docker and Kubernetes to ensure scalable infrastructure and streamlined deployments.
- API Integration and Security: Developed APIs adhering to Open Finance standards.
- Monitoring and Debugging: Applied observability tools like Datadog and Grafana to monitor application health and debug complex distributed systems.
- Code Quality and Collaboration: Followed Go best practices, writing clean, idiomatic code and unit tests while collaborating with cross-functional teams.
Vivo (Telefónica Brazil)
Backend Engineer / Software Engineer
Oct 2022 - Sep 2024
Brazil (remote)
AzurePythonMongoDBSQLGolang- Backend Development with Python and Golang: Processed and extracted insights from a network of over 6 million routers and networking devices using Python, Golang, and Azure technologies.
- Application Efficiency: Developed Python backend functionalities to optimize performance and efficiency.
- Microservices Development: Built microservices for network optimization, data analysis, and automation to streamline operations.
- Large-Scale Network Management: Managed a network of over 5 million devices, ensuring connectivity and seamless operation.
- High Data Volume Handling: Processed ~10 TB of data daily from Azure IoT devices efficiently.
- Data Integrity and Security: Maintained secure, accurate, and accessible data using Python, Networking, SQL, and MongoDB.
- Insight Generation: Transformed IoT data into actionable insights for decision-making.
- International Collaboration: Coordinated effectively with international teams in English and Spanish.
FAMESP
Senior Mechanical Engineer
Feb 2017 - Oct 2022
Brazil (remote)
Project Management- System Performance: Ensured optimal performance and reliability of hospital mechanical systems through management and preventive maintenance.
- Maintenance and Troubleshooting: Conducted regular maintenance and troubleshooting to guarantee safe and efficient operations.
- Team Leadership: Led a team to develop programs optimizing medical equipment performance and minimizing downtime.
- Project Management: Balanced project requirements with available resources for timely, within-budget installations.
- Minimize Downtime: Implemented strategies to reduce system downtime while maintaining equipment efficiency.
- Team Collaboration: Guided a skilled team to address maintenance challenges and foster skill development.
São Paulo University (UNIP)
Adjunct Professor III
Feb 2015 - Jan 2017
Brazil (remote)
Project Management- Teaching: Instructed undergraduate and postgraduate students in multiple subjects.
- Curriculum Development: Created and updated course materials, including lectures, assignments, and exams.
- Student Mentorship: Provided guidance and mentorship to students.
- Evaluation and Feedback: Assessed student performance and delivered constructive feedback.
- Administrative Responsibilities: Managed grading, attendance tracking, and course coordination.
Education
Sao Paulo State University - UNESP
Ph.D. in Mechanical Engineering
Jul 2013 - Jan 2018
Sao Paulo State University - UNESP
M.Sc. in Mechanical Engineering
Feb 2011 - Jul 2013
Sao Paulo State University - UNESP
Bachelor of Mechanical Engineering
Feb 2006 - Dec 2010
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