Workflow automation
End-to-end flows that move data, trigger actions, and close the loop across your tools — with AI making the judgment calls a script can’t. Document handling, customer ops, compliance review, sales follow-up.
Senior US team · AI-augmented delivery · Regulated industries
Spec. Build. Ship.
AI automations and custom software for businesses that can’t afford to get it wrong. Working software in days — production in weeks, not quarters.
20+years combined founder experience
3regulated industries shipped to
90days of post-launch support
What we build
Put AI to work.
Keep humans in the loop.
Production-grade automations and full custom platforms — built on your stack, integrated with your tools, and reviewed by senior engineers at every step.
AI agents & copilots
Internal copilots that know your data, agents for repeatable ops requests, RAG over your knowledge base.
AI-powered ops
Document extraction, intake triage, ticket routing, contract review, intelligent search — LLMs turned into product.
Custom platforms, end to end
When off-the-shelf almost fits, we build the thing that actually does: loan origination systems, case management platforms, B2B CRMs, carrier integrations. Spec to production, code and infrastructure handed to you.
Why us
Built different. On purpose.
Senior-only team
No junior bench, no account-manager layer. The people who scope the work also write the code — US-led, with distributed senior engineers behind every line.
AI-augmented delivery
AI is embedded in every stage — spec, build, test — so projects that used to take quarters reach working software in days and production in weeks.
Regulated-domain expertise
Fintech, Insurtech, Legaltech. We know your compliance, audit, and integration constraints before you finish explaining them.
How we work
One. Two. Three.
The name is the method. Three steps, fixed cadence, no surprises.
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Spec
A paid spec sprint that stands alone. You walk away with a written spec, architecture diagram, and milestone plan you own outright — whether you build with us or not.
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Build
Your team in the loop the whole way. AI-augmented, human-reviewed. First working software in days. Capped burn rates — never uncapped open-ended T&M.
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Ship
Documentation, monitoring, and post-launch support included. Code, infrastructure, and every decision stay with you. No proprietary lock-in, ever.
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 handling non-standard underwriting workflows at scale — live in production with active lenders.
Legaltech
Legal Case Management Platform
Problem One of Eastern Europe’s largest banks needed a unified system for complex legal matters.
Outcome Enterprise platform managing thousands of active matters across multiple departments.
Insurtech
B2B CRM for Broker Networks
Problem A New York insurer lacked tooling to manage its broker and carrier network effectively.
Outcome Purpose-built B2B CRM streamlining relationships across the full distribution chain — live in production.
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 underwriting rules around a vendor product. An insurer paying seven figures 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 what those companies actually needed: write the software, ship it fast, and stand behind it. 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, and we pick projects where the problem is real and the constraints are interesting.
Archy
Co-Founder · Engineering
12+ years building large-scale systems for regulated industries — the kind that have to be right the first time.
Stack we ship
- TypeScript
- Node.js
- Python
- React
- Next.js
- Postgres
- pgvector
- Redis
- AWS
- Kubernetes
- Terraform
- Anthropic
- OpenAI
- LangGraph
- LlamaIndex
- Pinecone
- n8n
- Temporal
- Twilio
- ElevenLabs
FAQ
Before you ask.
How do you structure engagements?
Most engagements start with a paid two-week discovery sprint. After that: two-week sprints on time-and-materials with monthly burn-rate caps, or milestone-based fixed scope when the work is well-defined. We never do uncapped, open-ended T&M.
What is the minimum project size?
The discovery sprint stands alone — you walk away with a spec and architecture even if you don’t build with us. Beyond that, a typical engagement is at least a few months of senior engineering. If your problem is smaller, we’ll say so and recommend someone who fits.
Who owns the code?
You do. Code, infrastructure-as-code, documentation, and decisions transfer to you at every milestone. No proprietary frameworks, no deliverables held hostage. Stop the engagement anytime — you keep everything.
Where are your engineers based?
Headquarters and senior engineering leadership are in Los Angeles, with additional senior engineers across two continents for near-24-hour delivery cycles. Every engagement has a US-based point of contact accountable for outcomes.
Do you sign NDAs, DPAs, and BAAs?
Yes. NDAs as standard before any sensitive conversation; DPAs and BAAs as needed for regulated engagements. Send your template and we’ll review within a few business days.
Your competitors are
shipping in quarters.
You could ship in days.
Tell us about your project — we usually reply within one business day.