Siesta Global

Architecting mission-critical systems. Building next-generation AI platforms.

Siesta Global Inc is an enterprise systems advisory firm and technology venture studio. We engineer high-scale cloud architectures, optimize AI infrastructure costs, and build proprietary software platforms — then run them ourselves.

Enterprise advisory

Hands-on architecture and AI optimization for growth-stage companies.

AI & cloud cost optimization

Bringing runaway LLM and AWS infrastructure bills back under control, without trading away throughput.

Migrated live production synthesis workloads to ultra-low-cost architectures, sharply reducing token spend while improving response times.

FinTech, ledgers & multi-party payouts

Complex payment routing, Stripe Connect integrations, and cross-border multi-currency transaction ledgers.

Decades engineering core financial systems and real-time transaction pipelines.

Fractional CTO / CPO

Executive guidance on system reliability, stack modernization, and product roadmaps — without carrying a full-time executive.

Engaged as focused sprints or an ongoing retainer, depending on what the problem needs.

In-house innovation lab

We build and operate our own platforms. They are where the architectures we recommend get proven first — on our own budget, at production scale, rather than a client's.

Imerzn™

An immersive experience marketplace

Connecting travellers with authentic local hosts and curated regional experiences. Stories, not stops.

  • Two-sided marketplace: host onboarding through to booking
  • Consumer web and native mobile applications
  • Payments and payouts across both sides of the market
imerzn.com →

Imerzn Social™

AI-assisted multi-channel growth engine

Turning a business's own photo and video assets into multi-platform social campaigns, drafted by AI and published natively to each network.

  • OAuth publishing to X, Facebook, Instagram, LinkedIn, Pinterest, and TikTok
  • Scheduling with exactly-once delivery, plus planner and content calendar
  • Multi-tenant SaaS: subscription billing, plan limits, self-serve signup
  • Runs on AWS, defined in code and deployed from CI
social.imerzn.com →

Track record

Thirty years of high-scale systems engineering.

Amazon, tax technology

Lead and architect on tax engines spanning global, state, and federal jurisdictions, at production scale.

FinTech & payments

Principal architect across high-throughput payment systems and real-time transaction pipelines.

Cloud & AI infrastructure

AWS RDS, event-driven microservices, and pragmatic AI pipeline integration — measured on cost and reliability, not novelty.

Need senior architecture oversight or AI infrastructure optimization?

Tell us what you're working on. We reply to everything within two business days.