ABOUT THE FIRM
If you can dream it, we deliver it
GrandLine Solutions is a full-stack development firm. We design, build, host, and operate the software businesses run on: custom applications and CRMs, SaaS platforms, AI and multi-agent systems, least-privilege platforms for just-in-time access — across web, mobile, and desktop. We're a new player, and it shows in the best way: cutting-edge patterns, delivered in record time, with no legacy playbook to defend.
The experience is real. We build and operate FitTrainr, a production SaaS with paying subscribers, iOS and Android apps, and a fully automated cloud estate. Every engagement inherits those patterns — and the route from idea to operations is run with discipline: discovery, design, build, launch, operate.
§ PRINCIPLES
01
Listen first, build exactly that
We work closely with you and deliver precisely what you asked for. Requirements are written down and agreed before a line of code — change is welcome, silent drift is not.
02
Patterns over guesswork
Tenancy isolation, billing lifecycles, just-in-time access, agent guardrails — we bring patterns already proven in production, then apply creativity where your product needs to be different.
03
Production is the portfolio
We demonstrate capability with software that bills customers and survives on-call, not with slideware. FitTrainr is the standing proof.
04
Automation over heroics
Infrastructure as code, gated pipelines, no manual deploys. If a human has to remember it, it will eventually be forgotten.
§ THE STACK WE BET ON
| Product | Next.js · React · TypeScript · Tailwind · Capacitor |
|---|---|
| Data | PostgreSQL (Cloud SQL) · Drizzle ORM · Firestore · BigQuery |
| Cloud | Google Cloud · Cloud Run · App Hosting · Secret Manager |
| Platform | Terraform · GitHub Actions · keyless WIF deploys |
| AI | Vertex AI / Gemini · Claude · OpenAI · MCP tool integrations |
| Revenue | Stripe · PayPal · Resend |
Opinionated on purpose: fewer moving parts, deeper expertise, faster delivery. We'll tell you when your problem needs something else.
Work with us
The front door is the work-request form. The engineers who will build it read every request.
Start a work request