Kari Lorenson

AI & Machine Learning Engineer

Data Engineer

Email Marketing Specialist

New York, NY, US

Supabase

Shopify

REST

Docker

GraphQL

SQL

Node.js

Puppeteer

Next.js

Stripe

React

Klaviyo

TypeScript

Python

Available for hire fromNegotiable

Systems & Automation Engineer | Founder, Klarsparrow (AI, Automation, Data Pipelines)

Systems & Automation Engineer — Founder at Klarsparrow. I design, build, and deploy production automation and AI systems end to end (outreach engines, data pipelines, CRM/API integrations, and internal operations tools). I work solo to take systems from scope to deployed-and-running in days or weeks, with a focus on cost-bounded, reliable, operationally safe solutions across full-stack engineering (Next.js, Python, Postgres) and applied AI (LLM/cost-bounded agents, multi-model pipelines).

Projects

AI-Assisted Outreach System

Built a personalized B2B outreach system: per-contact AI-drafted email, rate-paced sending, and multi-gate suppression (do-not-contact, pipeline-stage, per-contact cooldown). Engineered email-verification gating that cut bounce rate from ~18% to under 1% on verified campaigns, while scaling to 2,300+ delivered emails per month. Built with Next.js, Postgres, the Claude API, and Resend, deployed on Fly.io with an always-on scheduled worker.See More

Resilient Data Pipeline

Built a pipeline that turns scattered, undocumented, no-export web sources into one clean, deduplicated dataset. Headless-browser recon discovers each source's structure; a resilient harvester handles pagination, retries, and token refresh. The core is a resumable graph-traversal worker over a Postgres queue — crash-safe, cost-bounded, and refreshable on re-run. Built with Python and Postgres.See More

Commerce & Operations Integrations

Built an internal operations console that syncs orders from multiple sales channels (Shopify and wholesale marketplaces) into one normalized system — handling OAuth, pagination, and the line-item and fee disambiguation that makes these integrations brittle. Routes each order through fulfillment stages and computes real per-order margin and profit after channel fees and costs, replacing manual spreadsheet tracking. Built with Node.js and a lightweight embedded database, deployed on Fly.io with scheduled syncs.See More

Work History

Founder & Principal

KlarsparrowIndependent systems studio building automation, AI, and data infrastructure for commerce and B2B businesses. Productized engagements: outreach-system buildouts, data pipelines, API integrations, and internal tooling. Built a personalized B2B outreach engine: per-contact AI-drafted email, rate-paced sending, multi-gate suppression (do-not-contact, pipeline-stage, per-contact cooldown), and deliverability protection. – Engineered email-verification gating that cut bounce rate from ~18% to under 1% on verified campaigns, while scaling to 2,300+ delivered emails/month (~3,780 total). – Stack: Next.js, Postgres/Supabase, Anthropic Claude API, Resend, deployed on Fly.io with an always-on scheduled worker. – Built a pipeline that turns scattered, undocumented, no-export web sources into one clean, deduplicated dataset; headless-browser recon discovers each source's shape, a resilient harvester handles pagination, retries, and token refresh. – Core is a resumable graph-traversal worker over a Postgres work queue: expands from seed records along scored relationships with confidence decay, crash-safe and cost-bounded, refreshable on re-run. – Stack: Python (concurrent extraction), Puppeteer (recon), Postgres (durable work queue). – Integrated commerce and marketing platforms (Shopify, Faire, Klaviyo, Stripe) into normalized internal systems — handling OAuth, pagination, webhook-race-safe billing reconciliation, and fee/line-item disambiguation. – Built internal operations dashboards turning live multi-platform data into single operational views (order routing, cost and margin calculation, pipeline status). – Built AI content-automation workflows (programmatic product imagery and marketing content) with cost controls.

Similar Pangeans

How Pangea Works

Effortlessly discover top talent

We've distilled the candidate search from endless hours down to just a few minutes. Using Pangea's AI-powered search tools, you can find top fractional talent able to take on your next project. Our system looks at your company's niche and your needs to find the perfect match faster than any traditional hiring platform.

Start working with talent today

The top talent on Pangea is ready to get started with you right now. You can message or hire a candidate right from their profile page and start assigning work as soon as they respond. And the best part? Pangea's fractional contract structure lets you start small and ramp up as your needs change, keeping your costs manageable and your team's capabliities flexible.

Track work and invoices in one place

Assign tasks, track progress, and complete invoices all on Pangea. We've combined every part of the hiring process into one platform to eliminate the miscommunication that's unavoidable on other freelance platforms. We even send out 1099s to your contractors at the end of the year!