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Marco Maigua

Full Stack AI Backend Developer

Canada flagToronto, Canada
$30.00/hrExpertAws SagemakerSurge AILighttag

Key Skills

Software

AWS SageMakerAWS SageMaker
Surge AISurge AI
LightTagLightTag
Scale AIScale AI
TagtogTagtog

Top Subject Matter

FinTech/EdTech
Legal Services & Contract Review
Regulatory Compliance & Risk Analysis

Top Data Types

AudioAudio
TextText
DocumentDocument

Top Task Types

TranscriptionTranscription
ClassificationClassification
Fine-tuningFine-tuning
Computer Programming/CodingComputer Programming/Coding
Data CollectionData Collection

Freelancer Overview

Speech Recognition AI Back-End Developer. Brings 11+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Google Cloud Speech Recognition AI. Education includes Master of Computer Science, University of Saskatchewan (2019) and Bachelor of Electrical Engineering, San Francisco de Quito University (2015). AI-training focus includes data types such as Audio and labeling workflows including Transcription.

ExpertEnglish

Labeling Experience

Sentiment Analysis & Text Classification for Customer Reviews

TextClassification
Annotated over 10,000 customer reviews for a sentiment analysis project. Specific tasks included: Classifying each review as Positive, Negative, or Neutral Performing Named Entity Recognition (NER) to tag product names, brand mentions, and customer service keywords Identifying intent (e.g., complaint, suggestion, inquiry, praise) Maintaining consistency through weekly calibration sessions with a team of 5 annotators

Annotated over 10,000 customer reviews for a sentiment analysis project. Specific tasks included: Classifying each review as Positive, Negative, or Neutral Performing Named Entity Recognition (NER) to tag product names, brand mentions, and customer service keywords Identifying intent (e.g., complaint, suggestion, inquiry, praise) Maintaining consistency through weekly calibration sessions with a team of 5 annotators

2024 - 2024

Speech Recognition AI Back-End Developer

AudioTranscription
I designed and implemented a Speech Recognition AI back-end app using Google Cloud's Speech to Text API in a Node.js application. The system was integrated into a company platform to capture student voices and transcribe them into chat for educational use. It focused on building speech-driven transcription capabilities within a larger education technology environment. • Developed a data pipeline to process raw audio data into transcribed text. • Integrated automated transcription with a real-time chat interface for students. • Leveraged Google Cloud Speech Recognition for AI training tasks. • Enhanced platform accessibility and learning analytics with accurately labeled data.

I designed and implemented a Speech Recognition AI back-end app using Google Cloud's Speech to Text API in a Node.js application. The system was integrated into a company platform to capture student voices and transcribe them into chat for educational use. It focused on building speech-driven transcription capabilities within a larger education technology environment. • Developed a data pipeline to process raw audio data into transcribed text. • Integrated automated transcription with a real-time chat interface for students. • Leveraged Google Cloud Speech Recognition for AI training tasks. • Enhanced platform accessibility and learning analytics with accurately labeled data.

2019 - 2020

Education

U

University of Saskatchewan

Master of Computer Science, Computer Science

Master of Computer Science
2017 - 2019
S

San Francisco de Quito University

Bachelor of Electrical Engineering, Electrical Engineering

Bachelor of Electrical Engineering
2011 - 2015

Work History

O

Okta

Full Stack Software Developer

Toronto
2025 - 2026
C

ChainMyne

Full Stack Blockchain Developer

Laval
2024 - 2025