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Oliver Buchannon
Bogdan Colța

Helping devs grow into software architects: practical insights, tools, and mindset shifts.


The 48-Hour Bottleneck Audit: Find Your Delivery Constraint Before Management Hires a Consultant

Mar 15, 2026

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8 min read

The 48-Hour Bottleneck Audit: Find Your Delivery Constraint Before Management Hires a Consultant

Tech Architect Insights - Lesson #45: We found the bottleneck in 48 hours. Management expected 3 months.

Eliminate "Works on My Machine" With Containerized Dev Environments

Mar 8, 2026

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8 min read

Eliminate "Works on My Machine" With Containerized Dev Environments

Tech Architect Insights Lesson #44 - Your team loses a full day every week to "works on my machine"

Lead Time vs. Cycle Time: Find the Real Bottleneck With a 2-Hour Value Stream Map

Mar 1, 2026

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8 min read

Lead Time vs. Cycle Time: Find the Real Bottleneck With a 2-Hour Value Stream Map

Tech Architect Insights Lesson #43 - Your team isn't slow. It's stuck in a queue you can't see.

Architectural Fitness Functions: Automated Rules That Catch Drift Before Production Does

Feb 22, 2026

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8 min read

Architectural Fitness Functions: Automated Rules That Catch Drift Before Production Does

Tech Architect Insights Lesson #42 - We Had 47 Dependency Violations Nobody Caught Until Production Broke

"One-Way" vs. "Two-Way" Door Decisions With Speed That Doesn't Break Things

Feb 15, 2026

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7 min read

"One-Way" vs. "Two-Way" Door Decisions With Speed That Doesn't Break Things

Tech Architect Insights Lesson #41- The team spent two weeks debating a decision they could reverse in a day.

The 15-Minute ADR With Decisions That Actually Survive

Feb 8, 2026

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9 min read

The 15-Minute ADR With Decisions That Actually Survive

Tech Architect Insights: Lesson #40 - Your Team Rewrote a System That Worked. Here's Why.

Bulkhead Architecture With Failures That Stay Contained

Feb 1, 2026

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8 min read

Bulkhead Architecture With Failures That Stay Contained

Tech Architect Insights Lesson #39 - Keep Tier-3 failures away from login and checkout. Permanently.

Logs Are Not Enough

Jan 25, 2026

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8 min read

Logs Are Not Enough

Tech Architect Insights Lesson #38 - How to slash your Mean Time To Resolution from four hours to thirty minutes by making every request traceable across services, queues, and databases.

When Your Safety Net Becomes a Noose: Mastering Retry Storms

Jan 18, 2026

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9 min read

When Your Safety Net Becomes a Noose: Mastering Retry Storms

Tech Architect Insights - Lesson #37 - Small hiccups shouldn't trigger self-inflicted chaos.

Stream-Aligned Teams With Deployments That Don't Block

Jan 11, 2026

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10 min read

Stream-Aligned Teams With Deployments That Don't Block

Tech Architect Insights -Lesson #36 - Stop deep pages from melting your database.

Never Lose Another Event: The Outbox Pattern That Actually Works

Jan 4, 2026

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9 min read

Never Lose Another Event: The Outbox Pattern That Actually Works

Tech Architect Insights Lesson #35 - Stop "why is data different?" incidents. Choose consistency deliberately. Never lose events again.

The Distributed Monolith is Worse Than the Monolith

Dec 28, 2025

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9 min read

The Distributed Monolith is Worse Than the Monolith

Tech Architect Insights Lesson #34 - Diagnose microservice coupling and undo the worst splits before you scale them.

Locking and Deadlocks with fewer surprises

Dec 21, 2025

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8 min read

Locking and Deadlocks with fewer surprises

Tech Architect Insights Lesson #33 - Stop “random timeouts” by making locks visible and fixable.

Pagination That Doesn’t Die at Page 2000

Dec 14, 2025

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7 min read

Pagination That Doesn’t Die at Page 2000

Tech Architect Insights Lesson #32 - Stop deep pages from melting your database.

Queries and Indexes With Predictable Latency

Dec 7, 2025

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7 min read

Queries and Indexes With Predictable Latency

Tech Architect Insights Lesson #31 - Keep p95 stable by designing queries and indexes on purpose

Data Contracts for Events With Safe Evolution

Nov 30, 2025

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6 min read

Data Contracts for Events With Safe Evolution

Tech Architect Insights Lesson #30 -Ship events that change without breaking consumers.

Secret Rotation With Zero Downtime

Nov 23, 2025

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7 min read

Secret Rotation With Zero Downtime

Tech Architect Insights Lesson #29 - Rotate keys like a routine chore, not a midnight drama.

Error Contracts Across Services

Nov 16, 2025

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11 min read

Error Contracts Across Services

Tech Architect Insights Lesson #28 - Make retries predictable, fallbacks humane, and on-call a little quieter.

Caching Without Regret

Nov 9, 2025

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10 min read

Caching Without Regret

Tech Architect Insights Lesson #27 - Make data feel fast, stay honest about staleness, and avoid stampedes.

API Timeouts & Retries That Don’t Melt Your System

Nov 2, 2025

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9 min read

API Timeouts & Retries That Don’t Melt Your System

Tech Architect Insights Lesson #26 - Fix the retry storms, make timeouts tell the truth.

The 30-Minute Architecture Review That Actually Ships

Oct 26, 2025

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8 min read

The 30-Minute Architecture Review That Actually Ships

Tech Architect Insights Lesson #25 - Replace two-hour bikesheds with a crisp, decision-first ritual

Golden Paths (Paved Roads) Beat Tribal Knowledge

Oct 19, 2025

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8 min read

Golden Paths (Paved Roads) Beat Tribal Knowledge

Tech Architect Insights Lesson #24 - Publish one safe, fast default so teams ship great systems by default.

Designing Multi-Tenant Isolation

Oct 12, 2025

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9 min read

Designing Multi-Tenant Isolation

Tech Architect Insights Lesson #23 - Stop noisy neighbors, protect VIPs, and localize failure by design.

Shadow Traffic & Dual-Run - Prove It Before Cutover

Oct 5, 2025

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8 min read

Shadow Traffic & Dual-Run - Prove It Before Cutover

Tech Architect Insights Lesson #22 - Validate new systems with real production traffic in parallel, so launch day is boring.

SLOs & Error Budgets - Ship With Guardrails

Sep 28, 2025

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10 min read

SLOs & Error Budgets - Ship With Guardrails

Tech Architect Insights Lesson #21 - Move fast within reliability budgets so you never melt the core path again.

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