Sérgio Valentim

Available to hire

Experience Level

Expert
Expert
Expert
Expert
Expert
Intermediate

Work Experience

Software Engineer at Elsa Speak
February 1, 2022 - January 1, 2025
Led end-to-end ML engineering for an AI-powered language-learning platform. Built containerized services and scalable ML inference pipelines on AWS using Docker and Kubernetes. Implemented asynchronous processing to reduce service file handling times and improved real-time ML inference speed with PyTorch and TensorRT. Designed and deployed a distributed training queue, automated data annotation, and unified observability across ML pipelines. Standardized development/deployment processes with GitLab CI/CD and delivered rapid PoCs to demonstrate product value and secure funding.
Back-End Engineer at Inov Software Engineers
February 1, 2022 - January 1, 2025
Backend engineer contributing to Elsa Speak platform; designed and implemented ML inference pipelines using Python, PyTorch, and TensorRT; reduced service latency with asynchronous processing; improved data annotation workflow; built scalable CI/CD pipelines; enabled rapid adoption of new ML techniques.
Software Engineer at Elsa Speak
January 1, 2025 - Present
Platform development focusing on speech analysis features to help users improve English pronunciation, fluency, and speaking skills.
Software Engineer at Inov Software Engineers
February 1, 2022 - January 1, 2025
Software engineer delivering backend services and ML pipelines; improved real-time ML inference pipelines and reduced file handling times through optimized processing; designed and deployed containerized microservices on AWS with Docker and Kubernetes; established unified observability and automated testing in GitLab CI/CD; contributed to reducing infrastructure costs and increasing system reliability.

Education

Masters in Computer Science at Contact Education
January 1, 2017 - January 1, 2020

Qualifications

Master's in Computer Science
January 1, 2017 - January 1, 2022
Masters in Computer Science
January 1, 2017 - January 1, 2020
Masters in Computer Science
January 1, 2020 - January 1, 2022

Industry Experience

Software & Internet, Media & Entertainment, Education, Professional Services, Other, Computers & Electronics