Services
Four ways we get involved.
Some engagements need a full delivery team, some need one senior engineer for a focused review. Here's how we usually show up.
Product Engineering
Full-stack teams that design, build, and ship production software — from a first working version to a system that holds up under real usage.
- Web and API architecture, data modeling, and infrastructure-as-code
- TypeScript/React and Python delivery teams embedded with your own
- CI/CD, test strategy, and observability built in from day one, not bolted on later
Typical engagement: 3–9 months, embedded or fully delivered
Applied AI Systems
LLM-backed features that are scoped tightly enough to actually ship: retrieval, agents, and model-assisted workflows with real evaluation behind them.
- RAG pipelines, tool-using agents, and structured-output extraction
- Prompt and model evaluation harnesses so quality is measured, not guessed
- Cost, latency, and failure-mode review before anything reaches production
Typical engagement: 6–12 week build, then ongoing support
Platform & Infrastructure
Cloud architecture and delivery pipelines that stay boring under load — built for the incident you haven't had yet, not just the demo.
- AWS/GCP architecture reviews and cost-aware re-platforming
- Infrastructure-as-code, zero-downtime deploys, and rollback paths
- On-call-ready monitoring, alerting, and incident runbooks
Typical engagement: 4–8 week assessment, phased rollout after
Technical Advisory
Fractional CTO time and architecture reviews for teams that need a senior technical read before they commit budget or headcount.
- Pre-seed to Series B technical due diligence for investors and acquirers
- Architecture and vendor reviews before a major build decision
- Fractional CTO coverage while a founding team hires their own
Typical engagement: project-based review or monthly retainer
Frequently asked questions
- Where is Double G based?
- Double G is based in Toronto, Canada, and works with clients across Canada.
- What services does Double G offer?
- Double G offers four services: Product Engineering, Applied AI Systems, Platform & Infrastructure, and Technical Advisory.
- How long does a typical engagement take?
- It depends on the service: Product Engineering runs 3–9 months, Applied AI Systems is a 6–12 week build plus ongoing support, Platform & Infrastructure is a 4–8 week assessment with phased rollout, and Technical Advisory is project-based or a monthly retainer.
- How does Double G decide which service fits a project?
- Double G built a free, deterministic scoping tool at doubleg.tech/scope — answer six questions and get a computed build plan with a matched service track, timeline, and phase breakdown, with no model or network call involved.
Not sure which one fits?
Tell us directly what you're building and we'll point you at the right engagement.