From Developer to CTO: What Changes

The Hardest Shift: Building Through Others

Eighteen years into this career, I can tell you that the single most difficult transition I ever made was not learning a new language, adopting a new framework, or migrating a legacy system. It was the moment I stopped being the person who built things and became the person who enabled others to build things. That shift sounds simple on paper. In practice, it rewired how I think about my day, my value, and my identity.

When you are a developer, your output is tangible. You write code, you ship features, you fix bugs. There is a direct line between effort and result. When you become a CTO, that line disappears. Your output becomes the output of your team, and the quality of that output depends on decisions you made weeks or months ago about hiring, architecture, process, and priorities. The feedback loop stretches from hours to quarters.

I remember the first time I sat through an entire week without writing a single line of production code. It felt wrong, like I was not earning my keep. But that same week, I had unblocked three engineers by clarifying requirements with the product team, negotiated a timeline that gave us room to address technical debt, and convinced the CEO that a platform migration would pay for itself within two fiscal years. That was the job now. The code I did not write mattered less than the decisions I made so that others could write better code.

Calendar Management and the Battle for Focus Time

Nobody warns you that becoming a CTO means becoming a calendar manager. Your days fill with one-on-ones, cross-functional syncs, board prep, vendor evaluations, and the inevitable “quick chat” requests that are never quick. If you do not actively defend your time, you will spend every working hour in meetings and have nothing left for the strategic thinking that is supposedly your primary responsibility.

I developed a system over the years that I still use. I block two-hour windows on Tuesday and Thursday mornings as non-negotiable focus time. No meetings, no Slack, no email. Those windows are where I do my deepest thinking about architecture decisions, organizational design, and long-term technical strategy. Everything else gets scheduled around them. I also batch my one-on-ones into specific days so that I am not context-switching between strategic work and people management every ninety minutes.

The key insight is that a CTO’s calendar is a reflection of their priorities. If your calendar is entirely reactive, your strategy will be too. You have to treat your own focus time with the same respect you would give a meeting with your board or your biggest client.

Staying Technical Without Writing Code Daily

There is a persistent debate about whether CTOs should still code. My position, formed through years of getting this wrong in both directions, is that you need to stay technical enough to make informed decisions and earn the respect of your engineering team, but you cannot be in the critical path of any production system.

What this looks like in practice is that I read pull requests regularly, not to approve them, but to understand what my team is building and how they are building it. I prototype ideas in throwaway branches when I need to evaluate a technology or validate an architectural hypothesis. I pair with engineers occasionally, not to do their work but to stay connected to the reality of our codebase and tooling.

The danger of staying too hands-on is that you become a bottleneck and you signal to your team that you do not trust them. The danger of becoming too removed is that you lose the technical judgment that makes you effective in the role. I have seen CTOs on both extremes, and neither serves their organization well. The ones who still code every day tend to under-invest in people and process. The ones who have not touched code in years tend to make architectural decisions disconnected from implementation reality.

Building Trust with Non-Technical Executives

One thing that blindsided me in the CTO role was how much of the job is translation. You sit between an engineering team that thinks in systems, abstractions, and technical constraints, and a leadership team that thinks in revenue, risk, and market position. Your job is to make each side legible to the other.

Early in my career as a technical leader, I made the mistake of explaining things in too much technical detail. I would walk into a leadership meeting and talk about database indexing strategies or container orchestration when what the CEO actually needed to know was whether we could handle three times our current traffic before the holiday season and what it would cost. I learned to lead with business impact and keep the technical details in my back pocket for when someone asks.

The trust-building part is harder than the communication part. Non-technical executives need to believe that you are spending their money wisely, that you are not gold-plating systems, and that your timeline estimates are honest. That trust is built through consistent delivery, transparent communication about setbacks, and a willingness to frame technical investments in business terms. When I propose a refactoring effort, I do not talk about code quality. I talk about reducing our mean time to recovery, which directly affects customer experience and revenue.

Hiring Decisions That Compound

If there is one area where a CTO’s decisions compound more than any other, it is hiring. Every person you bring onto the team changes the team’s culture, capability, and trajectory. A great hire at the senior level can elevate everyone around them. A bad hire at any level can drain energy and morale for months.

I have made both kinds of hiring decisions, and the lessons have been expensive. The biggest mistake I made early on was hiring for technical skill alone. I would find someone who could solve any algorithm problem, ace a system design interview, and demonstrate deep knowledge of our stack, and then discover that they could not collaborate, could not communicate, or could not handle ambiguity. In a startup or mid-size company, those soft skills are not optional. They are the difference between a team that ships and a team that stalls.

Over time, I developed a hiring framework that weights three things roughly equally: technical competence, communication ability, and what I call organizational maturity, which is a person’s ability to navigate uncertainty, handle feedback, and work effectively without constant direction. I also learned to hire for the team I need in six months, not the team I need today. By the time someone is onboarded and productive, your needs will have shifted. If you are always hiring for the current moment, you are always behind.

The Loneliness of Leadership and Finding Peers

Nobody talks about this enough, so I will. Being a CTO can be isolating. You cannot vent to your direct reports about organizational challenges without undermining their confidence. You cannot share certain financial or strategic information with your team. You often cannot discuss the hardest decisions you are facing with anyone inside your own company.

For the first two years in a senior leadership role, I tried to tough this out on my own. That was a mistake. The isolation led to slower decision-making, second-guessing, and a kind of emotional fatigue that bled into my personal life. What changed things for me was deliberately building a peer network outside my organization.

I joined a small group of CTOs and VPs of Engineering who meet monthly to discuss challenges openly. No pitching, no networking in the transactional sense, just honest conversation about the problems we are all facing. Those conversations have been more valuable than any conference talk or management book. When you are wrestling with whether to reorganize your team, or how to handle a high-performer who is toxic to the culture, or whether to bet on a technology that your team is skeptical about, having peers who have faced the same decisions is invaluable.

If you are making this transition, or considering it, my strongest advice is to invest in those relationships early. Find other technical leaders who will be honest with you. The role is rewarding in ways that pure engineering never was for me, but it demands a different kind of resilience, and you should not try to build that resilience alone.