Software Engineering Studio

We engineer the
systems behind what's next.

Castle Innovations designs, builds, and scales production software for teams who can't afford to get the architecture wrong — from real-time platforms to AI-native products.

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SYSTEM ONLINE

UPTIME99.98%

LATENCY12ms

DEPLOYS24/wk

Featured Project

Beluga POS,
Point of Sale, Business Management Platform.

A real-time business management platform we built from the ground up — Process sales, manage employees, control inventory and much more.

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How We Work

Senior engineers,
start to finish. No hand-offs.

Every engagement is staffed by the same senior team from kickoff to production. No juniors learning on your dime, no offshore hand-offs.

Meet the Team Start a Project →

DISCOVERY

BUILD

SHIP

PROCESS ACTIVE

DISCOVERYDone

BUILDDone

SHIPIn progress

Selected Work

Projects we've shipped to production

Beluga POS

A point of sale system that goes above and beyond the customer check out process. Its a full featured PO + business management system.

React POS

Reeve MSP

Reeve is a full featured PSA and RMM tool. Complete with Billing, Tickets, Quotes, Projects, and Device Management.

PSA RMM Productivity

Forge DevOps

One-click CI/CD and infrastructure provisioning that lets growing engineering teams ship without ops overhead.

Go Kubernetes Terraform

Nexus Gateway

A unified API gateway with auth, rate-limiting, and observability built in from day one.

Rust gRPC Redis

We engineer thesystems behind what's next.

Beluga POS,Point of Sale, Business Management Platform.

Senior engineers,start to finish. No hand-offs.