Senior-only team
No junior bench, no account-manager layer. The people who scope the work also write the code — US-led, distributed senior engineers behind every line.
Spec. Build. Ship.
Custom software for Fintech, Insurtech, and Legaltech — a senior US team, AI-augmented, shipped in weeks not years.
Why us
Built different.
AI-augmented delivery
We embed AI into every stage of development — from spec to test — so projects that used to take quarters now ship in months, on greenfield builds and legacy modernization alike.
Regulated-domain expertise
Deep experience in Fintech, Insurtech, and Legaltech. We know your compliance, audit, and integration constraints before you explain them.
Industries
We know your world.
Fintech
Lending systems, payment infrastructure, compliance tooling, core banking — including custom loan origination systems built for non-standard underwriting workflows at scale.
Insurtech
Policy management platforms, B2B CRM for broker and carrier networks, and carrier integrations that streamline the full distribution chain.
Legaltech
Case management platforms, document automation, and matter tracking — scaling to thousands of active matters across departments.
Case studies
Work that speaks.
Fintech
Loan Origination System
Problem. Niche US lenders needed a tailored origination flow that standard platforms couldn’t support.
Outcome. End-to-end custom LOS built to handle non-standard underwriting workflows at scale.
Tell us about your project
Legaltech
Legal Case Management Platform
Problem. One of Eastern Europe’s largest banks needed a unified system to manage complex legal matters.
Outcome. Comprehensive case management platform handling thousands of active matters across departments.
Insurtech
B2B Customer Relationship System
Problem. A New York-based insurer lacked tooling to manage its broker and carrier network effectively.
Outcome. Purpose-built B2B CRM streamlining relationships across the full distribution chain.
About
Software is a craft. We treat it that way.
We started onetwothreework because we kept seeing the same thing — smart companies stuck with off-the-shelf software that almost fit. A lender bending its underwriting rules around a vendor product. An insurer paying a seven-figure license for a CRM that didn’t understand brokers. A law firm running its biggest matters out of spreadsheets.
So we built a small senior team to do the thing those companies actually needed: write the software, ship it quickly, and stand behind it. No layers of account managers. No junior bench. The people who scope the work also write the code, and AI handles the parts that used to soak up weeks.
We’re a Los Angeles-based boutique with senior engineers across two continents. We pick projects where the problem is real and the constraints are interesting — regulated industries, complex domains, and teams who’d rather get it right than get a demo.
Founders
Archy
Co-Founder · Engineering
12+ years in IT. Builds large-scale systems for regulated industries — the kind that have to be right the first time.
LinkedInJacob
Co-Founder · AI Transformation
9+ years in IT. Recognized AI transformation lead. Embeds AI into delivery so projects ship in months, not quarters.
LinkedIn