Senior Software Engineer with 10+ years building scalable, cross-platform web and mobile applications in data-intensive, enterprise-grade environments. Experienced architecting data-driven systems, modernizing legacy platforms, and improving performance and developer velocity. AI-native engineer leveraging LLM-powered workflows to accelerate delivery and ship intelligent product features from prompt design to production. Strong collaborator and mentor focused on translating product requirements into clean, scalable architecture with continuous improvement.…

Juan Chaur

Senior Software Engineer with 10+ years building scalable, cross-platform web and mobile applications in data-intensive, enterprise-grade environments. Experienced architecting data-driven systems, modernizing legacy platforms, and improving performance and developer velocity. AI-native engineer leveraging LLM-powered workflows to accelerate delivery and ship intelligent product features from prompt design to production. Strong collaborator and mentor focused on translating product requirements into clean, scalable architecture with continuous improvement.…

Available to hire

Senior Software Engineer with 10+ years building scalable, cross-platform web and mobile applications in data-intensive, enterprise-grade environments. Experienced architecting data-driven systems, modernizing legacy platforms, and improving performance and developer velocity.

AI-native engineer leveraging LLM-powered workflows to accelerate delivery and ship intelligent product features from prompt design to production. Strong collaborator and mentor focused on translating product requirements into clean, scalable architecture with continuous improvement.

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Skills

Experience Level

Language

Spanish; Castilian
Advanced
Catalan; Valencian
Advanced
English
Advanced

Work Experience

Senior Software Engineer at Peraton Labs (via Insight Global) / World 50, Inc.
May 1, 2026 - Present
Developing mission-critical software solutions for U.S. Department of Defense programs through Peraton Labs. (Primary role and timing inferred from the resume text.)
Senior Software Engineer at Peraton Labs (via Insight Global)
May 1, 2026 - Present
Developing mission-critical software solutions for U.S. Department of Defense programs as a contractor through Peraton Labs via Insight Global. (Specific technical stack and project details not provided in the resume text.)
Senior Software Engineer at World 50, Inc. (acquired by Waitr / ASAP) — Remotely
October 1, 2021 - February 1, 2026
Led the replatforming of the Member App's Innovation section into a unified cross-platform stack, establishing shared component architecture to reduce duplication and accelerate feature delivery across web and mobile. Designed and implemented scalable APIs and data models powering real-time feeds, engagement scoring, and dynamic filtering, enabling new analytics-driven product capabilities. Owned end-to-end features from backend schema design to high-performance React/React Native UIs, improving delivery speed, reducing bugs by 30%, and improving engagement and retention metrics. Architected an internal engagement analytics platform with Next.js, Node.js, Snowflake, and Neo4j, enabling teams to monitor historical engagement trends, identify at-risk members, and reduce context switching between systems by 40%. Implemented an AI-powered “Why this search?” capability using Google Vertex AI (Gemini), combining prompt design and latency optimization to improve result explanations and re
Senior Software Engineer at World 50, Inc.
October 1, 2021 - February 1, 2026
Led the replatforming of the Member App's Innovation section into a unified cross-platform stack using a shared component architecture to reduce duplication and accelerate feature delivery across web and mobile. Designed and implemented scalable APIs and data models for real-time feeds, engagement scoring, and dynamic filtering. Owned end-to-end features from backend schema design to high-performance React and React Native UI, improving delivery speed and reducing bugs by 30%. Architected an internal engagement analytics platform using Next.js, Node.js, Snowflake, and Neo4j to monitor engagement trends, identify at-risk members, and reduce context switching by 40%. Implemented an AI-powered 'Why this search?' capability with Google Vertex AI (Gemini) using prompt design and latency optimization, achieving 45% user adoption. Provided technical direction and code review leadership across product workstreams, influencing architecture decisions without formal management, and mentored engin
Senior Software Engineer at Delivery Dudes (acquired by Waitr / ASAP) — Remotely
May 1, 2021 - October 1, 2021
Developed high-traffic consumer web applications supporting real-time ordering and checkout using React and Node.js, ensuring fast and reliable experiences during critical purchase flows. Optimized React + Redux architecture to improve state predictability and reduce load times by 15% across critical driver and customer service platforms. Diagnosed and resolved production-critical issues impacting checkout and real-time order tracking during peak traffic periods, improving checkout reliability and reducing failed transactions by 25%.
Senior Software Engineer at Delivery Dudes (acquired by Waitr / ASAP)
May 1, 2021 - October 1, 2021
Developed high-traffic consumer web applications supporting real-time ordering and checkout using React and Node.js, ensuring fast and reliable purchase flows during critical periods. Optimized a React + Redux architecture to improve state predictability and reduce load times by 15% across key driver and customer service platforms. Diagnosed and resolved production-critical issues impacting checkout and real-time order tracking during peak traffic, improving checkout reliability and reducing failed transactions by 25%.
Senior Full Stack Engineer at Marfeel — Remotely
January 1, 2018 - May 1, 2021
Led key role in developing Compass, a real-time analytics and monetization platform serving 400+ enterprise newspaper publishers across Latin America and Europe. Enabled tracking of readership, subscriptions, and advertising performance. Built complex data-intensive frontend experiences using React and Redux to visualize high-volume analytics data for enterprise publishers, enabling real-time insights and goal tracking. Designed and implemented backend services and data processing workflows to support real-time insights and performance optimization across multi-tenant environments.
Senior Full Stack Engineer at Marfeel
January 1, 2018 - May 1, 2021
Led a key role in developing a real-time analytics and monetization platform serving 400+ enterprise newspaper publishers across Latin America and Europe, enabling tracking of readership, subscriptions, and advertising performance. Built complex, data-intensive frontend experiences with React and Redux to visualize high-volume analytics for enterprise publishers, assisting real-time insights and goal tracking. Designed and implemented backend services and data processing workflows to support real-time insights and performance optimization across multi-tenant environments.
Full Stack Engineer at Marfeel
November 1, 2015 - January 1, 2018
Built multi-tenant content extraction pipelines powering progressive web applications for enterprise publishers, enabling rapid deployment of optimized mobile experiences. Developed a custom CLI and automation workflows that reduced environment setup time from 2 hours to under 30 minutes, accelerating developer onboarding and day-to-day productivity. Expanded platform adoption through WordPress integrations and self-service publisher tools built with Vue.js. Mentored 5 engineers and helped maintain code quality across Vue.js and React codebases while supporting frequent CI/CD production releases.
Frontend Engineer at Comet Global Consulting (Client: SKY), Barcelona, Spain
March 1, 2014 - November 1, 2015
Contributed to a single-page payment application for British Sky Broadcasting (Sky), supporting secure subscription and transaction workflows within enterprise-scale systems. Collaborated with distributed teams across Spain and the UK, including onsite engagement in Edinburgh.
Front-End Engineer at Comet Global Consulting - Client: Sky
March 1, 2014 - November 1, 2015
Contributed to a single-page payment application for British Sky Broadcasting (Sky), supporting secure subscriptions and transaction workflows within enterprise-scale systems. Collaborated with distributed teams across Spain and the UK, including onsite engagement in Edinburgh.
Frontend Engineer at Comet Global Consulting - Client: Sky
March 1, 2014 - November 1, 2015
Contributed to a single-page payment application for British Sky Broadcasting (Sky), supporting secure subscription and transaction workflows within enterprise-scale systems. Collaborated with distributed teams across Spain and the UK, including site engagement activities in Edinburgh.
Frontend Developer at AUSY (Client: Amadeus IT Group), Nice, France
March 1, 2013 - March 1, 2014
Contributed to customer-facing airline platforms supporting carriers such as Lufthansa and Japan Airlines within Amadeus' R&D web distribution team. Built frontend features for high-availability booking systems and developed internal tools supporting airline configuration and operational workflows.
Front-End Developer at AUSY - Client: Amadeus IT Group
March 1, 2013 - March 1, 2014
Contributed to customer-facing airline platforms supporting carriers such as Lufthansa and Japan Airlines within Amadeus' R&D web distribution team. Built front-end features for high-availability booking systems and developed internal tools supporting airline configuration and operational workflows.
Frontend Developer at AUSY - Client: Amadeus IT Group
March 1, 2013 - March 1, 2014
Contributed to customer-facing airline platforms supporting carriers such as Lufthansa and Japan Airlines within Amadeus' R&D web distribution team. Built frontend features for high-availability booking systems and developed internal tools supporting airline configuration and operational workflows.

Education

Bachelor of Science in Computer Science at Universitat Pompeu Fabra
January 11, 2030 - July 29, 2026
Bachelor of Science (Computer Science) at Universitat Pompeu Fabra
January 11, 2030 - July 29, 2026
Certificate in English Language at Queen's College, New York City
January 11, 2030 - July 29, 2026
Bachelor of Science in Computer Science at Universitat Pompeu Fabra
January 11, 2030 - July 29, 2026
Student Teacher at Queens College (English Language) - personal program
January 11, 2030 - July 29, 2026

Qualifications

English Language Certificate
January 11, 2030 - July 29, 2026
AI Research Internship (AI Planning Team)
January 11, 2030 - July 29, 2026
Certificate in English Language
January 11, 2030 - July 29, 2026

Industry Experience

Software & Internet, Government, Professional Services, Media & Entertainment, Education

Skills

Experience Level