Jordan José Marshall Antuna

Senior Full Stack Engineer

Breitling

May 2022 - Aug 2025 (3 years 4 months)

• Contributed to the development of an e-commerce platform using React, Next.js, Node.js, Python, Nest.js, GraphQL, and PostgreSQL, resulting in a 20% increase in customer engagement. • Developed and maintained an AI-based recommendation system, resulting in an 18% increase in customer engagement and a 12% increase in sales. • Conducted targeted fine-tuning on CLIP (Contrastive Language-Image Pre-Training) to significantly boost performance in item category and brand prediction, improving multimodal understanding and alignment between textual and visual signals. • Led the migration of the frontend from Angular to React, which improved maintainability, reduced bundle size by 20%, and enhanced the overall developer experience with better stat

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Full Stack Engineer

Videopixie

Jul 2019 - Mar 2022 (2 years 9 months)

• Adopted a Microservices-based architecture and Event-Driven architecture for a Video Production platform development using React, React Native, Next.js, Python, NestJS, GraphQL and PostgreSQL. • Experienced full software development life cycle (SDLC) in Analysis, Design, Development, Implementation, Testing and Maintenance. • Integrated an AI-powered RAG (Retrieval-Augmented Generation) chatbot leveraging Langchain and Large Language Models (LLMs) with Transformer-based architectures for Natural Language Processing (NLP), enhancing video analysis and tagging functionality, which improved video categorization accuracy by 18%. • Led the frontend development and implemented a company design system and component library using Storybook for fu

Software Engineer

Token Metrics

Apr 2017 - Jul 2019 (2 years 4 months)

• Involved in Cryptocurrency Trading Platform development using HTML, CSS, JavaScript, Node, ReactNative, AngularJS, PHP, and MySQL. • Successfully addressed slow load times attributed to N+1 query issue in the API by implementing efficient batching techniques, resulting in a remarkable 50% acceleration in data loading. • Presented a comprehensive suite of tests, encompassing Unit Tests, Integration Tests, and End-to-End (E2E) tests using Jest, and Cypress, achieving a test coverage of over 90% and significantly enhancing the software's reliability and robustness. • Followed pixel-perfect design using vertical alignments, ensuring a consistent visual experience across all devices, which boosted the mobile conversion rate by 30%.

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Freelancer

May 2016 - Mar 2017 (11 months)

Jordan José Marshall Antuna

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