Daniel Rubio
@danielrubio1
Technical lead and software contractor with 15+ years of experience.
What I'm looking for
With over 15 years of experience in technology leadership, I've successfully launched, scaled, and optimized SaaS solutions and AI-powered platforms for startups and enterprises across the U.S. and Latin America. My leadership experience covers managing and growing engineering teams of over 50 members — spanning FTE, contractors & service providers — aligning technical execution with strategic business goals, and delivering robust, scalable solutions optimized for performance and user experience in cloud environments like AWS and GCP.
My most recent hands-on technical projects have included leveraging Large Language Models (LLMs) — such as OpenAI GPT, Claude, and Gemini — to develop Retrieval-Augmented Generation (RAG) workflows using frameworks like LangChain in conjunction with Vector databases such as Pinecone and Chroma, to create agent-based context-aware solutions for customer support automation, internal knowledge management, and sales enablement.
Experience
Work history, roles, and key accomplishments
Principal Engineer
Contacto Local
Apr 2023 - Present (2 years 2 months)
• Orchestrated SaaS platform development for validation and pricing services in the electronics, automotive, and real estate sectors.
• Engineered AI pricing models & agent development using 1st-generation tech & newer LLMs with RAG-Vector DB architectures.
Principal Engineer
Plenty
Aug 2019 - Apr 2023 (3 years 8 months)
• Designed and implemented a custom LIMS, optimizing food safety and plant science ops, achieving a 50% cost savings over turn-key LIMS
• Developed critical software for equipment tracking and BI reporting, enhancing operational transparency and decision making.• Designed
CTO - Co-founder
Clean Data Sets
May 2016 - Mar 2019 (2 years 10 months)
• Pioneered a cloud-based data cleansing platform using OpenRefine and big data APIs, scaling on AWS to meet diverse user needs.
• Led technical and business development, driving platform adoption and user engagement.
Principal Engineer
Scrape Defender
Jun 2013 - Apr 2016 (2 years 10 months)
• Architected migration of anti-scraping software from PHP to Python, enhancing processing capabilities for high-volume web-scraping tasks.
• Directed development processes, ensuring robust module creatino and system reliability.
VP of Engineering
HB Global Enterprises
Dec 2009 - May 2013 (3 years 5 months)
• Led re-engineering of government waterworks systems, improving software and infrastructure, ensuring compliance with quality standards.
• Managed stakeholder relationships, preventing fines and enhancing project delivery.
Education
Degrees, certifications, and relevant coursework
Contacto Local
Principal Engineer, Software Engineering
2023 -
Technical and business development leader for SaaS focused on pricing engine, legal/technical validation and marketplace for electronics, automotive and real estate. Lead team to develop data models, micro-services and integrations with government registries & commercial providers, as well as the implementation of UIs/dashboards for end users.
Plenty
Principal Engineer, Software Engineering
2019 - 2023
Designed software services for vertical farming start-up. Built custom LIMS to support food safety and plant science departments, representing a savings of $500K vs. purchasing a configurable off the shelf LIMS. In addition, supported development of other mission critical software for equipment tracking, produce release and BI reporting.
Clean Data Sets
CTO - Co-founder, Software Engineering
2016 - 2019
Technical & business development leader for cloud-based data cleansing platform, built on OpenRefine and other big data APIs. Technical platform built on AWS with ability to cost-effectively scale to thousands of user/groups with varying needs of storage space & processing power.
Scrape Defender
Principal Engineer, Software Engineering
2013 - 2016
Lead architect migrating anti-scraping security software application from PHP to Python. Coordinated set up of development & production processes & resources. Lead engineer for module capable of processing up to 50K web-scraping tasks per hour and lead for front-end responsive design, with a budget of $250K.
HB Global Enterprises
VP of Engineering, Engineering Management
2010 - 2013
Lead re-engineering of government waterworks systems including billing and census sub-systems, with analysis of application software, hardware and network infrastructure. Coordinated with US and Mexico based contractors an overall improvement of the sub-systems to comply with the government's quality standards and avoid recurring fines.
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