The Working CTO Journal of a fractional CTO

Field notes from the trenches.

Architecture, AI-first delivery, hiring, due diligence. Long-form essays and short dispatches on the technical decisions that quietly shape startups -- written by an operator, not a content team.

Articles155 published
Topics5 categories
CadenceWeekly long-form

The archive

Wh…
Zavodit Aug 6, 2026

Why Most Startups Don't Need a Full-Time CTO Until Series B

The fractional-to-full-time CTO progression and how to know when you actually need a full-time engineering leader. Real examples from startups that waited too long and …

CTO CTO Consulting Startup
7 min
Te…
Zavodit Aug 6, 2026

Tech Due Diligence M&A: How to Run a Technology Audit Before Acquiring a Startup

What to look for in technical due diligence before acquiring a startup - the red flags, deal-breakers, and the process for doing it right. From …

CTO CTO Consulting Startup
7 min
Wh…
Zavodit Aug 6, 2026

Why Developers Miss Deadlines: The Truth About Software Estimation Accuracy

Why software estimates are wrong, how to plan around that fact, and what founders should actually ask their engineers. A practical guide from a fractional …

CTO CTO Consulting Startup
8 min
Ve…
Zavodit Aug 6, 2026

Veteran CTO Lessons: What I Learned Shipping 200+ Software Products

Patterns from 200+ software products shipped over 15 years - what changes, what stays the same, and what really determines whether a software project succeeds. …

CTO CTO Consulting Startup
7 min
Te…
Zavodit Aug 6, 2026

Technical Decision Making Framework: How CTOs Choose Under Uncertainty

How to make good technical decisions when you do not have all the information. A practical framework from a fractional CTO with 200+ startup projects …

CTO CTO Consulting Startup
8 min
Bl…
Zavodit Aug 6, 2026

Blameless Post-Mortem Engineering: How Startups Should Run Incident Reviews

How to run a blameless post-mortem that produces action items engineers actually implement. A practitioner's template and cultural guidance from 200+ startup projects.

CTO CTO Consulting Startup
7 min
Ve…
Zavodit Aug 6, 2026

Vendor Lock-In: When It Matters and When Founders Worry Too Much

The real cost of vendor lock-in and when it is actually fine. A fractional CTO's honest assessment of when lock-in is a real risk vs. …

CTO CTO Consulting Startup
7 min
Ho…
Zavodit Aug 6, 2026

How to Build a Realistic Tech Roadmap for Your Startup (That Won't Become Fiction)

Why most technology roadmaps fail and what to do instead. A practitioner's guide to building a realistic tech roadmap that stays connected to business reality, …

CTO CTO Consulting Startup
7 min
Th…
Zavodit Aug 6, 2026

The First 30 Days as a Fractional CTO: What I Actually Do

A week-by-week breakdown of what a fractional CTO actually does in the first 30 days of an engagement. Real activities, real deliverables, from 200+ client …

CTO CTO Consulting Startup
7 min
Te…
Zavodit Aug 6, 2026

Technical Architecture Audit: How I Evaluate a Startup in 48 Hours

My actual process for evaluating startup technical architecture - what I look at first, the questions I ask, and the deliverable format. A practitioner's guide …

CTO CTO Consulting Startup
7 min
Fr…
Zavodit Aug 6, 2026

Fractional CTO for Digital Transformation: Non-Tech Companies Going Digital

How a fractional CTO helps traditional companies - manufacturing, logistics, healthcare - build their first software product. The playbook for organizations that have never shipped …

CTO CTO Consulting Startup
8 min
Fr…
Zavodit Aug 6, 2026

Fractional CTO for Crypto and Web3 Projects

What a fractional CTO does for Web3 startups - smart contract audit preparation, wallet infrastructure design, regulatory awareness, and the technical decisions that separate serious …

CTO CTO Consulting Startup
7 min
Fr…
Zavodit Aug 6, 2026

Fractional CTO for Real Estate Tech: PropTech Architecture Decisions

PropTech startup architecture decisions - MLS integrations, map and search design, property data pipelines, and the technical decisions that determine whether a real estate tech …

CTO CTO Consulting Startup
7 min
Fr…
Zavodit Aug 6, 2026

Fractional CTO for Ecommerce Startups: Custom Ecommerce Architecture Decisions

When to leave Shopify, how headless commerce works, and the architecture decisions that determine whether your e-commerce startup can scale. A Fractional CTO's perspective from …

CTO CTO Consulting Startup
8 min
Fr…
Zavodit Aug 6, 2026

Fractional CTO for Marketplaces: Two-Sided Platform Architecture

What a fractional CTO does for marketplace startups - matching algorithms, payment flows, trust and safety systems, and the architectural decisions that determine whether a …

CTO CTO Consulting Startup
7 min
Fr…
Zavodit Aug 6, 2026

Fractional CTO for EdTech: Scaling Learning Platforms

What a fractional CTO does for edtech startups - content delivery at scale, assessment engine design, accessibility requirements, and the technical decisions that determine whether …

CTO CTO Consulting Startup
7 min
Fr…
Zavodit Aug 6, 2026

Fractional CTO for FinTech: Security, Compliance, and Moving Fast

What a fractional CTO does for fintech startups - PCI DSS architecture, banking API strategy, fraud prevention design, and how to move fast without creating …

CTO CTO Consulting Startup
7 min
Fr…
Zavodit Aug 6, 2026

Fractional CTO for Healthtech Startups: HIPAA, Interoperability, and Build vs Buy

What a fractional CTO does for healthtech startups - HIPAA architecture decisions, EHR integrations, and the build vs buy questions that make or break compliance …

CTO CTO Consulting Startup
7 min
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