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TwelveTwo

Software engineering / TwelveTwo Technology

Software engineering for businesses that need to build.

TwelveTwo designs and builds reliable software, APIs, integrations, and internal systems—from the first architecture decision to production.

Start a projectSee our work

Custom softwareBackend systemsAPIsIntegrationsProduct engineering

System / 01Flow
  1. 01Problem
  2. 02Architecture
  3. 03Software
  4. 04Production

Architecture → Implementation → Production

Problem / 02

Software should remove complexity, not add to it.

Businesses rarely need more software. They need the right software—built around the way their business actually works.

Internal tools

Your team is drowning in spreadsheets.

Replace repetitive manual workflows with software designed around the way your team actually works.

Integrations

Your systems don't talk to each other.

Connect the tools you already use with reliable APIs and integrations.

Product engineering

You have the product. You need the engineering.

Turn an idea, prototype, or product requirement into reliable production software.

Modernization

Your existing software is becoming a liability.

Stabilize, refactor, modernize, or replace systems that have become difficult to maintain.

Services / Engineering

From architecture to production.

TwelveTwo works across the stack, with an emphasis on backend systems, APIs, integrations, and software that has to work reliably in the real world.

Custom Software

01

Applications built around your business instead of forcing your business into someone else's workflow.

Backend & APIs

02

Business logic, data models, APIs, services, authentication, integrations, and the infrastructure behind the product.

Product Engineering

03

Take a product from concept or prototype through architecture, implementation, deployment, and iteration.

Internal Tools

04

Purpose-built systems that replace spreadsheets, manual processes, and disconnected workflows.

Integrations

05

Connect CRMs, ERPs, SaaS platforms, databases, third-party APIs, and internal systems.

Legacy Modernization

06

Refactor, stabilize, migrate, or incrementally replace software that has become difficult to maintain.

See how engagements work

Selected work / 001

Built by TwelveTwo

Lattice Log

Greenhouse inventory software built around the way nurseries actually work.

Lattice Log gives greenhouse teams one place to manage plant inventory while keeping a live availability list in sync for customers.

  1. Catalog
  2. Inventory
  3. Availability
  4. Customer

Python · Django · PostgreSQL

View the Lattice Log case studyVisit LatticeLog.com (opens in a new tab)
Lattice Log catalog listing the plant items a nursery team sells.
Catalog — items the team sells.
Lattice Log inventory table showing plant batches and counts by status.
Inventory — batches on the bench.
Lattice Log public availability list that customers can filter without logging in.
Availability — what buyers see.

Engagement / 04

Need an engineer, not an agency?

Sometimes you don't need a 20-person agency. You need an experienced engineer who can understand the system, make good technical decisions, and get the work done.

TwelveTwo can work alongside your existing team—or own an entire project from architecture through deployment.

01

Contract Engineering

Bring TwelveTwo in when your team needs additional engineering capacity.

02

Project-Based Development

A defined project with a clear scope, architecture, implementation, and delivery.

03

Fractional Engineering

Ongoing engineering support without hiring a full-time team.

04

Technical Consulting

Architecture reviews, technical direction, system design, modernization planning, and implementation guidance.

Talk about your project

Process / 01—05

A straightforward way to build software.

  1. 01

    Understand

    We learn what you're trying to accomplish, what's broken, and what already exists.

  2. 02

    Architect

    We determine the simplest technical approach that will actually work.

  3. 03

    Build

    Focused engineering. Clear communication. Working software.

  4. 04

    Ship

    Testing, deployment, documentation, monitoring, and handoff.

  5. 05

    Continue

    Need another feature, ongoing maintenance, or a technical partner? We can stay involved.

Specification

Technologies we work with.

  • Python
  • Django
  • JavaScript
  • TypeScript
  • React
  • PostgreSQL
  • Docker
  • REST APIs

Founder

Built by an engineer.

Travis Prol

Founder & Software Engineer

TwelveTwo Technology is an independent software engineering firm focused on building practical, reliable software.

Travis works directly with clients to understand the problem, design the system, write the software, and get it into production.

Start / 07

Have something that needs building?

Tell us what you're working on. We'll figure out whether TwelveTwo is the right engineering partner.

Start a projecttravisjohnprol@gmail.com