A mountain ridge at dusk

The software your business runs on.

Equivalent Solutions designs, builds and operates the systems companies depend on every day: payments, platforms and the tools behind them.

Email us See our work

What we do

Four kinds of work. Each one delivered by a small senior team with one person responsible from start to finish.

Product engineering

We design and build web and mobile products, from the first screen to daily operation.

Payments and financial platforms

Invoicing, payment links, ledgers, settlement and reconciliation. Built to pass audits and to keep working when a regulator changes the rules.

Modernising existing systems

We retire ageing systems piece by piece while the business keeps running. No big-bang launch, no frozen roadmap for a year.

Engineering leadership

Senior engineers who join your team, set the standard for how software is built and reviewed, and leave the team stronger.

Selected work

Systems that are still running, years after launch.

A container port at night

A payments platform for two markets

One codebase serving two countries, two currencies and two regulators. Invoicing, payment links and settlement for small businesses.

Live in both markets, operated by us since launch.

An engineer working late at two monitors

Replacing a core system without downtime

A ten-year-old monolith retired module by module over eighteen months, each one live behind the old interface.

Zero days of downtime during the migration.

A bank branch interior at dusk

Compliance tooling for a regulated lender

Customer verification, audit trails and reporting, built so every decision can be traced to the person and the rule that made it.

Passed the regulator's review on the first submission.

How we work

Three stages. The same people stay with you through all of them.

  1. Understand

    We start with the business, not the backlog. Two weeks with your team, your data and your customers before we commit to a plan.

  2. Build

    A small senior team ships to production every week from the first month. You see working software, not slide decks.

  3. Operate

    We stay after launch. Monitoring, upgrades and a direct line to the people who built the system.

Proven tools

Chosen because they still work in ten years.

  • Ruby on Rails
  • Hotwire
  • PostgreSQL
  • MySQL
  • AWS
  • Kubernetes
  • Native iOS and Android

Tell us what you are building.

One email reaches the engineers who will do the work. We reply within one working day.