Matthew Fellows

San Francisco, CA • matt.fellows@gmail.comLinkedInGitHub

Professional Summary

Lifecycle platform architect with deep experience owning the engagement-platform layer (Klaviyo, HubSpot, Marketo) end-to-end for leading B2B companies including Klaviyo, Bazaarvoice, and Riverbed. Designs and governs multi-thousand-attribute data models, wires bidirectional CRM and engagement integrations, and ships the Snowflake/dbt, Salesforce, and product-event infrastructure that powers activation, upsell, cross-sell, and churn-prevention programs. Engineering AI-driven lead intake, process automation, and other pipelines compressing sales and marketing processes from days to minutes.

Key Achievements

Professional Experience

Klaviyo

San Francisco

Senior Lead Solution Architect

Dec 2024–Present (1 yr 5 mos)

Driving AI-powered automation and growth systems across the full lifecycle: activation, cross-sell, upsell, and churn prevention.

  • Built the unified data and integration layer connecting Salesforce CRM, lead activity, and product event signals into a many-to-one Snowflake/dbt model powering real-time segmentation, activation, and onboarding
  • Automated data imports with AI and rules-based logic; reduced manual operations 90% and cut lead scoring and sales routing time by ~3 days
  • Owned operational data strategy for onboarding and cross-sell programs, including mobile and service suite, covering event taxonomy, payload schema, identity mapping, and QA/user acceptance testing (UAT) validation
  • Built AI-powered email automation pipeline at Klaviyo, accelerating time to review and launch transactional emails by 75%

Lead Klaviyo Solution Architect

May 2022–Dec 2024 (2 yrs 8 mos)

Built lifecycle automation infrastructure and governance for IPO readiness and global scale.

  • Delivered a new compliance-focused lifecycle automation platform in less than 6 months in support of IPO readiness
  • Led a cross-functional task force building infrastructure, security controls, and governance around customer lifecycle messaging and marketing communications
  • Built the initial product-event pipeline, unifying 250+ behavioral and account data points across systems to power onboarding, upsell, cross-sell, and churn-prevention lifecycle programs and LTV modeling
  • Drove cross-functional efficiency wins saving approximately 100 sales hours per month and reduced costs by offloading 100M iPaaS tasks
  • Built the automation behind localization workflows, converting a manual process into a scalable pipeline shipping 600+ localized flows and messages

Marvel Marketers

Remote

Senior Solutions Architect

Oct 2021–Apr 2022 (7 mos)

Designed scalable martech frameworks and automation tooling for enterprise clients.

  • Created a reusable config-based framework for generating custom Marketo and HubSpot templates reducing discovery and development time by over 80%
  • Reduced manual discovery and migration efforts by 75% through introducing an automated ETL and analysis framework for Marketo instance migrations

Routing Manager @ Google Cloud

Nov 2019–Apr 2022 (2 yrs 6 mos)

Managed lead routing operations for Google Cloud marketing.

  • Managed lead enrichment operations for Google Cloud marketing
  • Developed custom rules-based request intake system with token-based quotas to control email program volume ensuring activations and engagement levels stayed within governance thresholds

Solutions Architect

Oct 2018–Oct 2021 (3 yrs 1 mo)

Led technical solution design for marketing automation and Salesforce integrations.

  • Developed attribution framework and custom Salesforce solutions including Opportunity<>Contact role linking automation

Martech Developer

Dec 2017–Oct 2018 (11 mos)

Built marketing technology solutions for clients across SaaS, healthcare, and e-commerce.

  • Led discovery, solution design, and implementation for Martech service requests for clients in diverse industries including SaaS, healthcare, and e-commerce
  • Created a template development workflow with code reuse and version control improving delivery speed and reducing rework by 50%
  • Shipped custom JavaScript for cookie tracking and marketing attribution, and implemented Salesforce automation (Process Builder, Flow) to streamline campaign execution
  • Rolled out development infrastructure for issue tracking and version control, improving collaboration and release reliability

Bazaarvoice

Austin, Texas

Marketing Operations Specialist

Aug 2015–Sep 2017 (2 yrs 2 mos)

Managed global marketing automation and lead management for a SaaS ratings and reviews platform.

  • Managed a global Marketo environment supporting multi-channel campaigns, architecting reusable template systems and automated campaign-in-a-box frameworks to reduce setup time by 50% and standardize execution across regions
  • Represented Marketing in Data Governance Council ensuring alignment of marketing with competing priorities across GTM and other functions and systems
  • Developed dashboards delivering marketing data in unified reporting views, providing real-time visibility into campaign performance and driving data-informed segmentation and targeting decisions

Chronicle Books

San Francisco

Marketing Systems Developer

Jul 2010–May 2014 (3 yrs 11 mos)

Owned marketing technology stack and B2C e-commerce systems for an independent book publisher.

  • Owned full-stack marketing systems development including platform upgrade, warehouse integration, and Zendesk migration
  • Implemented heat mapping, session recording and analytics tools to optimize user experience and conversion rates

Riverbed Technology

San Francisco Bay Area

Web System Technologist & Eloqua Administrator

Dec 2009–Jul 2010 (8 mos)

Managed web properties and marketing automation for a global network performance company.

  • Launched Eloqua across multiple web properties with localization
  • Developed a library of pre-approved email and landing templates to improve consistency
  • Aligned Sales and Regional Marketing through regular enablement and training

Contract Web Developer

San Francisco Bay Area

Web Developer

Dec 2008–Dec 2009 (1 yr 1 mo)

Freelance web development for various clients.

  • Introduced version control, deployment processes, and peer reviews to reduce developer errors
  • Championed mobile-friendly, non-Flash video conversion and rollout to improve mobile experience
  • Implemented and localized websites and email templates

Splunk Inc

San Francisco Bay Area

Course Developer

Feb 2008–Jul 2008 (6 mos)

Founding developer on the L&T team, building foundational training for Splunk's CLI and core product functionality.

  • Pioneered interactive web-based training as the first course developer on the team, creating the initial library for Splunk's command-line interface; designed and developed foundational courseware that educated customers and prospects on core product functionality and accelerated onboarding

Kaiser Permanente

Oakland, California

Instructional Technologist

Feb 2007–Jan 2008 (1 yr)

Implemented e-learning courseware and LMS technology for one of the nation's largest healthcare organizations.

  • Implemented online courseware developed by the instructional design team, introducing a custom e-learning template and upgraded LMS communication technology that improved authoring quality, reliability, and completion tracking accuracy

ELT

San Francisco Bay Area

Learning Technology Consultant

Mar 2005–Feb 2007 (2 yrs)

Led LMS migration and third-party integrations for an e-learning provider.

  • Gathered requirements, ran UAT and completed migration of an in-house LMS to a modern platform
  • Owned third-party integrations and acted as escalation for platform and integration issues, and managed DBA/sysadmin/IT
  • Captured bug fixes and test cases for platform and courseware improvements

Help Desk Engineer

Apr 2004–Mar 2005 (1 yr)
  • Provided phone, email, and live support to customer admins and end users for a SaaS compliance e-learning provider
  • Resolved technical support issues with online courseware; trained customer admins on the LMS
  • Coached admins on measuring training outcomes and program success

Personal Projects

Cents

dollars-and-cents.ai

Creator and Lead Developer

AI-powered agentic experiment for generating stock recommendations

Vibe-Coded.ai

vibe-coded.ai

Creator and Lead Developer

Vibe coding tool allowing the creation of custom MCP servers

Outstanding Photos

outstandingphotos.shop

Principal

Custom e-commerce platform

Technical Skills & Expertise

AI & Agentic Systems
  • Agentic APIs
  • Model Context Protocol (MCP)
  • Prompt engineering, LLM integration
  • AI-powered automation
  • Frontier model familiarity: OpenAI, Anthropic, Gemini
Marketing Platforms
  • Klaviyo, HubSpot, Marketo, Eloqua
  • Salesforce CRM
Data & Analytics
  • SQL (PostgreSQL, MySQL)
  • Snowflake, dbt
  • Event schemas, identity resolution, data model governance
  • Tableau, Google Analytics, attribution modeling
Growth & Experimentation
  • A/B and multivariate testing
  • Lifecycle orchestration, journey mapping
  • SEO/SEM, personalization
Development & Engineering
  • JavaScript/Node.js, Python, Vue.js
  • HTML5, CSS3, responsive design
  • REST APIs, webhooks, SOAP
  • Git, CI/CD, Docker
Cloud & Integration
  • AWS (Lambda, S3, EC2)
  • Cloudflare Workers
  • iPaaS (Zapier, Workato)
  • Flask, Vercel, serverless functions

Certifications

  • Previously certified: Marketo Certified Expert (2016–2021)

Education

B.A., Communication, University of Arizona (1999–2003)