Software architecture for companies that have outgrown basic development.
We help growing software teams make better engineering decisions. We trim moving parts, fix database bottlenecks under load, and build backends that scale cleanly.
Hands-on architecture judgment
Handled during high traffic
Latency via semantic Redis caching
Background jobs processed
Engineering Problems We Solve
Founders don’t call us for generic developer hours. They call us when technical debt, slow deployments, or database spikes threaten growth.
“Our PostgreSQL database is melting under peak load.”
Most database failures aren't hardware limits. Long-running queries hold row locks inside web requests until connections freeze. We trace lock times, clean bloat, and set up chronological table partitioning.
“Our AI & LLM billing costs exploded overnight.”
Direct model calls add network latency and thousands in billing overhead. We decouple your pipeline, drop semantic Redis caches in front of common queries, and cut model spend up to 60%.
“Our Rails app freezes under traffic spikes.”
Synchronous HTTP calls and heavy calculations locked inside web requests starve application worker pools. We move work into background queues and transactional outbox patterns.
“We don’t trust our LLM outputs in production.”
Prompt tweaks shouldn't break upstream features. We build programmatic evaluation contracts in CI/CD to grade reasoning accuracy and stop regressions before deploy.
“Our test suite takes 25+ minutes, stalling releases.”
Slow local tests and bloated dependency trees kill developer momentum. We audit test suites, mock external HTTP targets, prune unused gems, and cut CI build times.
“Our cloud bill doubled without traffic growth.”
Standard CPU/memory scaling acts too slowly, leaving idle servers running. We build queue-depth autoscalers and trim container boot times from 90 seconds to under 14 seconds.
Why We Don’t Bill By The Hour
Hourly billing rewards slow work. We charge for impact and senior judgment instead. Sometimes the right architectural fix takes five minutes. Sometimes it takes five days of refactoring.
Pay for engineering judgment and concrete system outcomes—not elapsed time.
How We Make Decisions
Good consultancies sell labor. Great consultancies sell judgment. Here is our stance on building software.
We remove complexity first.
Every line of code, extra gem, or server instance is maintenance debt. The most reliable code is the code you never write. We delete dead paths and simplify data flows.
We default to boring, proven stacks.
PostgreSQL, Rails, Redis, and Next.js handle 99% of workloads cleanly when configured properly—without microservice sprawl.
Dependencies must justify their weight.
Adding a 50MB package to save 15 lines of code is a bad trade. We prune libraries to keep builds fast and secure.
Scaling a live Conversational AI pipeline.
A customer support product was burning thousands on direct GPT-4 API calls. High response latency caused customer churn, while database lockups blocked operations.
We decoupled the pipeline, added semantic Redis caching for repeated prompts, and moved transcript processing to Sidekiq.
System Architecture Flow
Led by Wilbur Suero
Wilbur Suero
Founder & Principal Engineer“Over a decade building Rails platforms, scaling PostgreSQL databases, and building AI tools.”
I founded ProxyPattern so founders can work directly with a senior architect—no account managers, no junior developers learning on your budget. Just direct engineering results.
“Software should become easier to change as it grows. We help engineering teams build systems that age well.”
Core Engineering Principles
We build software designed to compound in value over time.
Complexity is debt with interest.
Every line of code, extra dependency, or server instance is an operational liability. We design to remove moving parts.
Determinism before AI.
LLMs are probabilistic. Before adding an AI model, check if SQL, regex, or a state machine solves the problem deterministically.
Master stable tools.
We build on mature stacks—Rails, Next.js, PostgreSQL, Redis. We push native capabilities to their limits before adding new tools.
Our Focus Areas
We maintain active research, open-source packages, and consulting services.
Consultancy
Senior architecture audits and database scaling.
Research & Playbooks
Asynchronous guidelines and prompt evaluation suites.
Open Source
Public Ruby gems and developer utilities.
Architecture Scanners
Automated codebase diagnostics and lockup detectors.
Live Products
Factura DGII tax generator, PrestaCRM, and publishing tools.
Live Tools & Open Code
Explore our live web applications, open-source packages, and engineering playbooks.
Factura DGII
Privacy-first Dominican Republic tax invoice generator (NCF & e-NCF) with instant vector PDF rendering.
Open Factura DGII →PrestaCRM
Loan portfolio OS with applicant risk scoring, French amortization schedules, and WhatsApp collection automation.
Visit PrestaCRM →The Playbook
Read our exact engineering playbooks: evaluating AI systems and fixing PostgreSQL row lock contention.
Open the PlaybookOpen Source
Audit our public codebases: AISpec, GemGuard, Promptly, and outbox_rails.
View GitHub Code