# Hallisson Santos > Principal Engineer Architect @ Albertsons Companies | Former Director of Engineering @ Backcountry | AI-Powered Event-Driven Architectures | Cloud Modernization | Scaled Retail Platforms @ Gap, Backcountry, Albertsons Location: San Francisco Bay Area, United States Profile: https://flows.cv/hallisson As a Principal Solutions Architect at Albertsons Companies, I focus on designing scalable and innovative architectures to enhance the marketing ecosystem and communication platforms. With over two decades of experience, I specialize in integrating artificial intelligence, performance testing, and event-based architectures to optimize systems for efficiency and scalability. My mission is to deliver impactful solutions that enhance operational performance and customer engagement. By leveraging expertise in persistence, technical reporting, and advanced software design strategies, I help drive technological transformation and cost optimization for one of the largest grocery retailers in the U.S. ## Work Experience ### Principal Engineer Architect @ Albertsons Companies Jan 2022 – Present | Pleasanton, California, United States • Architected and led the complete redesign of the marketing communications platform on event-driven architecture, scaling SMS throughput 20× from 60k to 1.2M messages/hour while cutting deployment costs 50% through multi-partition consumers and intelligent instance consolidation • Designed and implemented AI-driven hyper-personalization engine for transactional + triggered campaigns, enabling real-time data-science model injection across every channel (SMS, email, push, in-app) • Built scalable tribe verification ecosystem (students, military, teachers, SNAP, etc.) that unlocked millions in incremental promotional revenue through precise segment targeting • Created self-service keyword SMS marketing system, allowing marketing teams to launch new campaigns in minutes without engineering involvement • Designed and drove DNC/RND compliance platform (Do-Not-Call/Reassigned Number Detection), evaluating multiple vendors and delivering a generic, auto-updating solution that eliminated legal risk and automated opt-outs • Established new performance testing strategy that publishes >1M test events into Kafka topics in under 5 minutes, enabling true Black-Friday-grade confidence • Segmented communications platform by channel into dedicated micro-applications, dramatically improving deploy velocity, fault isolation, and team ownership. • Built AI solutions using different LLM models to extract metadata and create efficient contextual search to enhance internal tools, reducing manual work. • Architected an AI based enterprise content validation ecosystem, empowering a self-service model to the marketing and collective businesses. ### Director of Engineering @ Backcountry.com Jan 2020 – Jan 2022 | Park City, Utah, United States Cross domain collaborator focused on e-commerce success, responsible to lead managers, tech leads, developers across 8 different teams under customer experience. Technology Specialist, responsible to help Backcountry to modernize different technology stacks using new standards. • Led 8 cross-functional teams (100+ engineers/managers) as part of Customer Experience leadership, shifting from 3 major releases/year to 20+ by implementing true product-team operating model • Modernized legacy monolith payment platform into abstracted microservices on Kubernetes/GCP, eliminating millions in annual transaction fees through intelligent routing and vendor optimization • Designed and shipped Expedition Perks loyalty platform (microservices + event-driven), directly responsible for 7-figure increase in new customer acquisition and LTV • Increased all site page speeds 200%+ by leading Next.js migration with aggressive caching (Redis + CloudFront + ISR), dramatically improving SEO and conversion rates • Led React Native mobile app redesign that significantly grew mobile revenue share • Executed full e-commerce platform migration to Google Cloud, reducing infrastructure spend by mid-six figures annually • Championed headless Adobe Experience Manager adoption across all brand sites, giving marketing teams unprecedented speed-to-market ### Technical Manager | Principal Software Engineer @Gap Inc @ Avenue Code Jan 2015 – Jan 2020 • Designed and owned Gap Inc.’s strategic payment gateway platform (Java/Spring Boot), abstracting multiple processors and enabling dynamic routing rules that reduced processing fees by millions annually • Led Apple Pay integration across all Gap brands — company’s first digital wallet implementation — delivering +5% overall sales lift • Architected and drove migration of multiple legacy monoliths to Spring Boot microservices on cloud, cutting development time 50% and enabling true team autonomy • Built credit-card token migration engine that moved terabytes of sensitive data to new tokenization platform 10× faster than previous approach • Designed personalization aggregation layer consuming customer, inventory, and preference data across systems to power real-time recommendations at scale • Implemented CI/CD pipelines for mission-critical payment applications, reducing production deployment time from weeks to hours ### Enterprise Architect/CTO @ Eteg Jan 2013 – Jan 2015 | Belo Horizonte, Minas Gerais, Brazil • Served as CTO and chief architect for product portfolio, designing reusable component platform that reduced development costs across company and spinoffs by 50% • Owned technical due diligence and proposal architecture for 50+ enterprise deals (public private sector) • Built enterprise-wide continuous integration/delivery system years before it became industry standard in the region ### Solutions Architect @ Eteg Jan 2010 – Jan 2013 • Acted as lead architect for all company projects (30+ concurrent systems); defined standards, selected technology stacks, and made final technical decisions • Designed and implemented solutions for banking, government, education, and e-commerce clients at national scale ### Senior Staff Software Developer @ Eteg Jan 2008 – Jan 2009 | Belo Horizonte Area, Brazil • Lead developer responsible to maintain existing applications and create new solutions. • Application design reviewer. • Java and related APIs teacher for 600+ hours. • Source code reviewer. • Java and .NET developer, responsible to design and implement solutions for different functional business areas: finance, e-commerce, security, social network. ### Web Developer @ BHTEC Jan 2006 – Jan 2008 Java/.NET Software Developer, working on big projects for clients such as: • Globo.com: Developed a new portal globominas.com using a in house CMS. • Fiat: Designed and developed several solutions for internal sales. • Yamaha: Enhanced a resource development tool for attracting new talents. • GE: Developed an external sales system. ### IT Manager @ Sagra Insumos Agropecuarios Jan 2005 – Jan 2006 | Patos de Minas Area, Brazil • Responsible to manage company's IT department. • Coordinate IT support teams. • Execute preventive and corrective computers maintenance. • Responsible to configure and maintain company's computer network. • Maintain ERP applications using a proprietary development language - ADVPL. ### Software Engineer @ Algon Jan 2004 – Jan 2005 | Patos de Minas Area, Brazil Development of desktop solutions for business automation using Visual Basic 6. ## Education ### Postgraduate in Strategy on Architecture Software IGTI ### Bachelor's degree in Information Technology UNIPAM ## Contact & Social - LinkedIn: https://linkedin.com/in/hallisson --- Source: https://flows.cv/hallisson JSON Resume: https://flows.cv/hallisson/resume.json Last updated: 2026-04-12