Doug Morgen

Professional summary

Full-stack engineer and former founder with deep product and customer focus, strong systems architecture experience, and a proven track record of building and scaling high-revenue businesses. Adept at learning new technologies, leading engineering initiatives, and architecting and building scalable, reliable systems.

2026

Full-Stack TypeScript Application

• Built a full-stack TypeScript application using Bun, Effect, React, TanStack Router, Tailwind CSS, shadcn/ui, Drizzle ORM, and PostgreSQL.
• Architected a strongly typed Effect API with shared schemas, dependency-injected services, tagged domain errors, boundary validation, and automated lint, typecheck, test, and build gates.
• Implemented secure authentication and account-scoped data access with email/password, GitHub and Google OAuth, verified-email account linking, reCAPTCHA, rate limiting, and concurrency-safe resource limits.
• Containerized and deployed the application with Docker and Kamal, automating pre-deployment database migrations and isolating PostgreSQL behind an Apache TLS reverse proxy.

2026

AI Video Generation & Editing Platform · Lena Site

• Built an end-to-end Rails video studio that turns uploaded MP4 and MOV footage into polished, vertical H.264 videos through a reviewable background-processing workflow.
• Integrated Auphonic audio cleanup with ElevenLabs multilingual transcription and forced alignment to generate precisely timed captions, plus cloned-voice narration and original AI-generated music.
• Implemented Anthropic-assisted edit planning using transcript timestamps, detected scene changes, and musical beat grids, alongside Runway generative visual effects applied to exact source ranges.
• Engineered the FFmpeg rendering pipeline for video enhancement, styled captions, visual-effect replacement, voiceover, music mixing, automatic ducking, fades, preview history, and downloadable final MP4 exports.
• Protected final output with configuration digests that require the exported video to match the reviewed preview, while Sidekiq jobs expose explicit processing and failure states throughout the workflow.

February 2024 - Present

CTO · Arrafund

• Founded and built a global, multi-currency creator monetization platform connecting influencers and businesses using Ruby on Rails 8, Turbo, Stimulus, PostgreSQL, Redis, Tailwind CSS, and JavaScript.
• Architected high-performance Rails applications with aggressive performance targets, optimizing ActiveRecord, PostgreSQL queries, caching, and ActiveStorage.
• Designed and implemented a polymorphic social graph supporting comments, likes, follows, shares, notifications, and user engagement features.
• Built a Shopify application using Next.js, TypeScript, Prisma, PostgreSQL, and Render for real-time affiliate earnings and commission tracking.
• Implemented Stripe and Wise financial integrations including OAuth flows, webhook processing, encrypted credential storage, and payment automation.
• Built high-volume webhook ingestion pipelines for Shopify and WordPress with HMAC verification, idempotency guarantees, retry handling, and asynchronous processing.
• Designed a multi-currency commission and attribution engine tied directly to Shopify order lifecycle events and affiliate performance.
• Deployed and operated infrastructure across AWS, Heroku, Docker, CloudFront, Redis, PostgreSQL, GitHub Actions, and Cloudflare services.
• Owned end-to-end product development including architecture, backend systems, frontend development, infrastructure, security, payments, analytics, and third-party integrations.

March 2026 - July 2026

CTO · Homebrand

• Served as CTO and sole software engineer for Homebrand, architecting, building, and deploying the full Rails 8 product across backend, frontend, data model, AI pipelines, infrastructure, and internal tooling.
• Built and deployed an AI-native home operations platform on Heroku and AWS, helping property owners manage documents, maintenance, contractors, utilities, house materials, teammate access, and property-specific Q&A.
• Designed and implemented the full application stack: Rails 8, PostgreSQL, Redis/Sidekiq, Active Storage/S3, Devise authentication, Turbo/Stimulus UI, Anthropic extraction/answering, and OpenAI transcription.
• Built the complete AI ingestion system, including OCR-first parsing, document classification, structured extraction, receipt/manual/warranty/policy processing, audio/video transcription, evidence indexing, and background job orchestration.
• Created Kovu, an evidence-grounded AI assistant that retrieves from uploaded documents, property records, materials, maintenance logs, contractors, and utilities to answer homeowner questions.
• Developed the full property-scoped authorization model, including multi-property support, owner/teammate roles, invitations, beta-gated signup, admin approval controls, and AI policy consent.
• Shipped all core product workflows end-to-end: document upload, receipt export, contractor matching, house material inventory, maintenance planning and completion history, utility tracking, property profiles, settings, and admin beta access.
• Owned production deployment and operations across Heroku and AWS, including managed runtime configuration, background workers, Redis-backed queues, PostgreSQL, SMTP mail, and S3-backed file storage.

April 2025 - January 2026

Senior Full-Stack Engineer · BrightGo

• Architected a hybrid ERP accounting and operations platform integrating legacy ERP data with Ruby on Rails/PostgreSQL, React, Chakra UI, and LayerFi's accounting APIs and UI components, delivering a modernized system for companies managing $20M+ in annual revenue.
• Designed and built a true job-costed payroll system, enabling per-job labor tracking, real-time cost attribution, and accurate payroll-to-ledger reconciliation for operational and financial reporting.
• Modernized the React Native mobile app to support complex schedule editing, multi-shift workflows, and real-time validation for field employees and supervisors.
• Engineered high-throughput data-migration and reconciliation pipelines to import legacy ledgers with penny-perfect accuracy, enforcing idempotency, globally unique external IDs, and strict double-entry balance validation.
• Normalized and enforced accounting account type/subtype hierarchies during migration, guaranteeing full compliance with LayerFi's ledger constraints and eliminating classification errors that previously blocked financial close.
• Delivered executive-grade React dashboards with live P&L, vendor, and customer detail views, combining BrightGo's domain models with LayerFi's real-time financial components, optimized with SWR and matched to pixel-perfect Figma specifications.
• Implemented a high-performance, role-based permissions system using Rails policies and React front-end gating, securing sensitive accounting workflows while sustaining sub-50ms authorization checks at scale.
• Designed production-grade background job orchestration for financial workflows including imports, payroll calculation, and reporting synchronization.

Oct 2019 - Nov 2023

Senior Software Engineer · EasyPost (YC 2013)

• Led architecture for mission-critical billing systems handling $8 billion in shipping volume for UPS, FedEx, and DHL.
• Developed high-throughput microservices and optimized MySQL database partitions for performance and especially maintainability.
• Designed and launched a QR code endpoint that generated 100k return labels a day in collaboration with UPS and key stakeholders.
• Standardized default carrier billing integrations by building reusable libraries for scalable, cross-platform billing logic.
• Built and extended business-critical Ruby on Rails API services powering logistics and shipping infrastructure.
• Migrated 15 services from the Rails monolith to Python Flask and Django microservice architecture, improving reliability and developer productivity.
• Led development of in-house UPS DAP shipping and billing infrastructure, handling $15M in annual shipping volume.

2005 - 2019

Founder, CTO, Owner & Lead Engineer · Cellular Country

• Built and scaled an $8M/year B2C eCommerce business, developing enterprise-level inventory, fulfillment, accounting, and CRM systems in PHP and MySQL.
• Designed and implemented an AI real-time dynamic pricing model to maximize revenue on every SKU sold.
• Increased conversions on product pages, product listing pages, checkout page, and confirmation page by anywhere from 10 to 30 percent using A/B and multivariate tests with Google Website Optimizer and Visual Website Optimizer.
• Led SEO and SEM strategies, driving highly profitable organic growth to 5,000 users per day and profitable paid traffic growth to 3,000 users a day.
• Managed supply chain and inventory automation of 10,000 unique SKUs and 2,000 active SKUs at any time, ensuring real-time tracking and seamless fulfillment.
• Oversaw UX development, leading multiple remote engineers and designers to meet aggressive deadlines.
• Responsible for 24/7/365 99.9 percent uptime DevOps on bare-metal Linux servers.
• Managed an in-house staff of 10 employees handling all customer service and operations tasks.

Education