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I am Sergio Sánchez, a tech lead with 8+ years of software engineering, specializing in mobile development and AI. I enjoy turning ideas into scalable, user-centric products and leading cross-functional teams to deliver measurable impact. I thrive on building end-to-end solutions, mentoring engineers, and driving data-driven decisions from concept through deployment, with a focus on clean architecture, reliability, and ethics.…I am Sergio Sánchez, a tech lead with 8+ years of software engineering, specializing in mobile development and AI. I enjoy turning ideas into scalable, user-centric products and leading cross-functional teams to deliver measurable impact. I thrive on building end-to-end solutions, mentoring engineers, and driving data-driven decisions from concept through deployment, with a focus on clean architecture, reliability, and ethics.

Sergio Sánchez

AI Developer, Data Scientist, Full Stack Developer, +2

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I am Sergio Sánchez, a tech lead with 8+ years of software engineering, specializing in mobile development and AI. I enjoy turning ideas into scalable, user-centric products and leading cross-functional teams to deliver measurable impact. I thrive on building end-to-end solutions, mentoring engineers, and driving data-driven decisions from concept through deployment, with a focus on clean architecture, reliability, and ethics.…I am Sergio Sánchez, a tech lead with 8+ years of software engineering, specializing in mobile development and AI. I enjoy turning ideas into scalable, user-centric products and leading cross-functional teams to deliver measurable impact. I thrive on building end-to-end solutions, mentoring engineers, and driving data-driven decisions from concept through deployment, with a focus on clean architecture, reliability, and ethics.

Available to hire

I am Sergio Sánchez, a tech lead with 8+ years of software engineering, specializing in mobile development and AI. I enjoy turning ideas into scalable, user-centric products and leading cross-functional teams to deliver measurable impact.

I thrive on building end-to-end solutions, mentoring engineers, and driving data-driven decisions from concept through deployment, with a focus on clean architecture, reliability, and ethics.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

Spanish; Castilian

Fluent

English

Advanced

Italian

Intermediate

French

Beginner

Work Experience

Data Science Professor at Universidad UNIE

September 1, 2025 - Present

Teach the full data science pipeline: acquisition, wrangling, EDA, visualization, modeling, and optimization. Develop hands-on coursework in Python (pandas, scikit-learn, Spark) and R focused on reproducibility, ethics, and communication. Supervise student projects applying statistical and machine learning methods to real-world datasets.

Tech Lead – AI & Data at Manifiesto

August 1, 2023 - Present

Created a multi-agent AI assistant used to analyze parliamentary activity and public discourse; created an AI-powered answer engine capable of deep research, cross-source synthesis, and citation tracking. Developed automated data pipelines to extract and scrape interventions from all members of the Spanish Congress, and exposed them via a multi-platform application supporting both keyword and semantic querying of the corpus. Fine-tuned a Spanish BERT model to classify political bias in tweets, enabling geographic analysis of voting intentions. Engineered automated data pipelines to ingest data from multiple social platforms into an AWS data warehouse.

Mobile Lead at Manifiesto

January 1, 2023 - December 31, 2024

Architected and led development of a mobile banking app, collaborating with stakeholders to define requirements, align on UX and deliver a secure, scalable solution.

Flutter Lead Developer at Hypefive

August 1, 2021 - April 1, 2022

Led development of a sports social network app, owning delivery from design through release. Designed scalable Firebase backend to support multiple social features.

Mobile Lead at Ultralytics

October 1, 2020 - April 1, 2024

Led the product and architected the Ultralytics HUB mobile app, enabling users to browse datasets, inspect labels and statistics, view all trained YOLO models, download them and run on-device, real-time inference. Designed and implemented native Android/iOS SDKs (Java/C++/Swift) and an open-source Flutter plugin to perform real-time inference with YOLO models.

Flutter Developer at MPower Ventures

October 1, 2018 - June 1, 2020

Built inventory and expense-tracking apps, handling end-to-end design and implementation. Designed scalable Firebase backend and intuitive UI/UX interfaces.

Android Developer at Peep

March 1, 2017 - September 1, 2018

Developed frontend for a sports social network app using Java/Kotlin. Contributed to backend maintenance and UI/UX interfaces.