Portrait of Alfredo Patnella Tezanos

Software and Cloud Application Architect

I clarify
complex systems.

And turn them into architecture, documentation and improvements that teams can operate with confidence.

Montreal-based · Working in English and Spanish


Expertise


01

Architecture reconstruction

Mapping existing systems to produce accurate documentation and improvement plans.


02

AWS architecture reviews

Evaluating cloud infrastructure for security, cost efficiency, and operational soundness.


03

Technical documentation

Producing clear, durable records of how systems are built and why decisions were made.


04

Security and cost assessments

Identifying exposure and waste through structured review of AWS environments.


05

Critical-workflow testing

Validating the paths that matter most before they fail in production.


06

Modernization planning

Defining a staged, low-risk path from legacy systems toward maintainable architectures.



AWS Reviews & Pricing

A fixed-scope AWS review, with pricing set upfront.

For teams that inherited an AWS account, are preparing for funding, an audit, or due diligence, got a surprising AWS bill, or haven't had their setup reviewed since launch.

How it works

  1. 01 Free intro call 30 minutes to discuss your environment. I recommend a scope — no cost, no commitment.
  2. 02 Fixed scope and price, in writing You approve the scope and price before any paid work starts.
  3. 03 Report and walkthrough A written report and a call to walk through the findings together.

Pricing

AWS Risk Snapshot

From CAD $495 + taxes

  • 1 AWS account, 1 region
  • Tool-assisted scan, with the most important findings validated by me
  • Short written report
  • 60-minute walkthrough call
Book the intro call

Most complete

Full AWS Architecture Review

From CAD $2,000 + taxes

  • 1 AWS account, up to 3 regions
  • Findings across security, reliability, cost, performance, and operations, each with evidence
  • A prioritized fix plan
  • An architecture overview
  • 60-minute walkthrough call
  • Delivered in 5 business days

Larger environments: custom quote.

Book the intro call

Need architecture reconstruction, documentation, or modernization instead? See Services — price on request.

After the review (optional)

Remediation

A fixed quote based on the findings.

Ongoing monitoring

From $59/month. A monthly re-scan with a drift and risk report showing what changed and what's new.

Founding-client offer

Not a discount: the first 3 review clients get a free follow-up re-scan 30 days after delivery to verify their fixes, in exchange for a testimonial.

How pricing works

  • The final price is confirmed in writing before any paid work starts — it depends on the size and complexity of your environment.
  • No hourly billing and no surprise invoices.
  • Access is read-only, through a time-limited IAM role. No long-lived credentials, and nothing in your account is changed.
  • The review is the only commitment. Everything after it is optional.

How the review works

I use Archnube, my own read-only AWS assessment platform, to capture an evidence-backed snapshot of your environment. I then apply 18 years of architecture judgment on top of that snapshot to separate what matters from the noise. It's read-only, uses a least-privilege IAM role, and never reads secret values. archnube.com


Selected work

View all projects
01

Cloud Architecture

Regulated SaaS Platform Across Canada and Mexico

Architecture and operations for a regulated SaaS platform serving 7,000 users, with a 99.5% uptime SLA and mean time to recovery cut by more than 90%.

02

Architecture & Cloud Migration

Blockchain-Based SaaS for Regulated Financial Services

Architecture and cloud migration for a blockchain-based SaaS platform in regulated financial services, spanning 12 environments.


How I work

  1. 01 Discover
  2. 02 Reconstruct
  3. 03 Validate
  4. 04 Prioritize
  5. 05 Transfer knowledge

Ready to make sense
of a complex system?

Engagements typically start with a focused discovery conversation. No obligation, no sales process.