| 2023–Present |
Machine Learning Engineer at Amplemarket
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- Building Machine Learning and Data products for sales teams, with a focus on Generative AI applications.
- Led the development of AI Copywriter (personalized sales emails), Duo Inbox (automated email response system), and Duo Voice (voice cloning for personalized voice messages).
- Created production NLP systems for lead generation that process billions of data points, upgraded core ML classifiers with LLM architecture, and fine-tuned open source models for specialized tasks.
- Managed MLOps infrastructure including CI/CD pipelines, containerized deployments on Google Cloud, and monitoring systems for production ML services.
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| 2022–2023 |
- Used Data Science and Machine Learning to improve annotation quality and speed and reduce costs on the online data labelling platform Neevo
- Investigated speech detection (VAD), background noise prediction (SNR), and micro disturbances detection
- Accelerated client's delivery by R&D-ing data processing and validation mechanisms
- Reduced client attrition by developing data quality metrics
- Expedited R&D by building internal packages for Speech operations
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| 2020–2022 |
R&D (ML) Intern at Defined.ai
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- MSc Thesis Cooperation: "Impact of Vocal Traits Distribution on Speech Applications' Performance and Bias"
- Investigated performance differences in ASR systems based on speakers' vocal characteristics
- Tuned multiple ASR algorithms using DeepSpeech's neural network architecture
- Proved that vocal traits (pitch and spectral centroid) offer a more verifiable, effective, and ethical approach to speech data collection
- Research covered AI Fairness, Input Bias, Voice Profiling, and Speech Recognition
View thesis project →
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| 2018–2020 |
Consultant/Assistant at PwC Portugal
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- Assistant at the Portuguese representative of a multinational professional services network headquartered in London
- Worked on SIRIS, a platform that automatically generated risk reports for banks using their information systems
- Deployed banking reporting solutions in Angola, working directly with local financial institutions
- Contributed to various projects including GDPR compliance, client segmentation analysis, and corporate reorganization
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