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Sheet 01 · Chad Koslovsky

Senior Frontend React EngineerTypeScript & Workflow Architecture

Senior Frontend React Engineer · Modern Family Law

I’m Chad, a frontend-focused product engineer who builds React and TypeScript products from the interface through the API. My recent work includes React 19, Zustand and schema-defined forms, plus Weft/Warp, my reactive TSX framework and UI toolkit. For Modern Family Law, I bring hands-on experience making complex state, document workflows and AI-assisted features understandable, with privacy and recovery treated as part of the product.

Sheet 02

Cover letter

Hi Modern Family Law team,

I call myself a technomancer

. Not a real job title, I know. It just means tech has felt like magic to me since I was a kid, and building with it is the closest I get to casting any.

I’m a full stack developer, but the frontend is home

. React, TypeScript, and a habit of not leaving design alone until it looks right, behaves right and holds together underneath. I went deep enough on it that I built my own: Weft, a TSX framework with its own compiler, Warp, the UI toolkit that goes with it, and a full stack layer for routing, auth and data. Your posting asks for a systems builder, that’s the most accurate thing anyone’s called me.

The closest thing I’ve built to what you’re doing is Proofmark, an open-source contract tool. A team can put a contract together remotely, send it out to be signed in the right order, and every action on the document lands in an audit trail. I’ve been the senior person on most teams I’ve worked on, so setting standards and bringing another developer along isn’t new.

I’ve put real time into learning AI too, enough to get invited to Dev Day. I’ve seen plenty of what it looks like when it’s wrong, and that’s the part an interface has to be honest about.

Here’s why this role. Some people show up to family law on the worst day they’ve had in years. The design should work for that person, so even on a bad day the software is the one thing that isn’t hard. I want to build that.

I’m local, so hybrid works for me. Let’s talk.

Sheet 03

Experience

Technomancy IT LLC · 2015-Present

Founder / Product Engineer / Systems Lead

Build React/Next.js and TypeScript interfaces; recent platform work uses React 19, selector-based Zustand stores and schema-defined conditional forms that discard stale dependent answers.

Front Range Internet Inc. · 2015-2019

Senior Systems Engineer / Datacenter Architect

Led infrastructure readiness, monitoring, recovery verification and escalations; translated technical controls into audit evidence and repeatable operating procedures.

Office Evolution · 2013-2014

Systems / Software Engineer

Built SQL- and MongoDB-backed applications connecting CRM, provisioning, onboarding and service operations across locations.

PlumChoice / Everon · 2011-2013

Network Engineer

Supported business networks and endpoints, built diagnostic tooling and communicated directly with business owners and end users.

IBM · 2009-2011

Infrastructure and Systems Focal

Supported shared enterprise infrastructure, automated audit and backup workflows, and coordinated changes and escalations across technical and business teams.

Sheet 05

Capabilities

  • React, Next.js, TypeScript, TSX, JavaScript, HTML and CSS
  • Component architecture, Zustand, derived state and schema-defined forms
  • Typed API contracts, tRPC, REST, PostgreSQL and Node.js
  • OAuth/OIDC, tenant-aware interfaces, document workflows and audit trails
  • AI integration, accessible UI patterns, frontend tests and production operations

Sheet 06

Contact

Weft/Warp is my reactive TSX framework and UI toolkit, currently in development.