Skip to main content
Francisco DuránFD
Looking for a job

Francisco Durán

@franciscodurn

Machine Learning Engineer at SLNG who built a production speech-to-text API processing 249 hours of audio per day.

Spain
Message

What I'm looking for

I'm particularly interested in designing scalable, reliable, and resource-efficient AI inference systems.

At SLNG, I designed, built, and owned a production batch speech-to-text API, processing 1,043 jobs and 249 hours of audio per day. I tuned GPU inference for Speechmatics workers and built language-aware routing with back-pressure and event-driven callbacks.

I contributed to a real-time STT/TTS gateway in Rust and built slng-bench to compare speech providers on accuracy and latency. My work also included a serverless results service and multi-region benchmark runs.

At M47 Labs, I analyzed and optimized AI pipeline performance for Apple’s personal voice assistant, Siri, and automated MLOps workflows. My research at Polytechnic University of Catalonia focused on green AI, ML serving architectures, and profiling language-model resource use; I’ve published work in the field.

Experience

Work history, roles, and key accomplishments

Oracle logoOR

Software Developer

Jan 2022 - Mar 2023 (1 year 2 months)

Collaborated on code development and QA for Oracle's In-memory TimesTen Database, creating tests and debugging in Perl and Python. Supervised code branches and migrated scripts to Oracle Cloud Infrastructure.

Polytechnic University of Catalonia (UPC) logoPU

Research Intern

Polytechnic University of Catalonia (UPC)

Jul 2021 - Nov 2021 (4 months)

Conducted research on testing methods for deep learning models in computer vision with a focus on green AI. Gathered information and developed empirical methods for the research project.

OS

Software Engineering Intern

Omnitracs (Solera)

Jul 2020 - Jun 2021 (11 months)

Implemented data analysis and ML to streamline QA processes using Python, Excel, and Splunk. Created Tableau dashboards and automated internal processes through scripting.

National Autonomous University of Mexico (UNAM) logoNU

IT Intern

National Autonomous University of Mexico (UNAM)

Jul 2019 - Jan 2021 (1 year 6 months)

Provided lectures on Linux, Python, ML, and MATLAB to PROTECO members and university students, each course lasting two weeks.

Education

Degrees, certifications, and relevant coursework

Polytechnic University of Catalonia (UPC) logoPU

Polytechnic University of Catalonia (UPC)

Master's degree, Informatics Engineering

2023 - 2025

Activities and societies: Member of Software and Service Engineering Group (GESSI research group)

Master's degree in Informatics Engineering. Member of the Software and Service Engineering Group (GESSI research group).

National Autonomous University of Mexico (UNAM) logoNU

National Autonomous University of Mexico (UNAM)

Bachelor's degree, Mechatronics Engineering

2016 - 2021

Activities and societies: Member of Technology and Computing Program (PROTECO)

Bachelor's degree in Mechatronics Engineering. Member of the Technology and Computing Program (PROTECO).

Get matched with your dream remote job

Sign up now and join over 1,000,000+ remote workers who receive personalized job alerts, curated job matches, and more for free!

Sign up
Himalayas profile for an example user named Frankie Sullivan