I’ve done the same kind of work for a very long time: collection management systems for several years, and before that, vital statistics. Both fields centre on structured, high-integrity data. On top of that, I’ve used the same tech stack throughout.
Most of my development has been on higher-level tools, customer-specific customisation, glue code around an existing product. I haven’t touched low-level programming in a while. And for a long stretch, that felt fine.
Working in such a specialised field comes with real rewards, but also real drawbacks. Niche expertise buys you real security. These systems tend to have a small pool of people who understand them really well, which makes you hard to replace and often insulates you from the changes that affect more generic roles. You also spend more time with customers and end users than most developers in software houses ever do, which quietly builds soft skills that are genuinely hard to fake. You learn to listen, translate, manage expectations and slowly become the person in the room.
But there is a part that many ignore: Security is not the same thing as readiness. Deep expertise is valuable, and some people quite happily build their entire careers around a single niche. However, you can feel safe until the niche shrinks or the company restructures. Once you’re outside that narrow lane, the roles you can realistically apply for thin out fast. Your CV starts reading like a specialist in something nobody’s hiring for and your experience doesn’t map cleanly onto the current trends. The soft skills do not really close the gap.
So the question isn’t whether to specialise. You already have. The question is whether you’re building enough range around that specialisation to stay ready, not just employed.
The best approach is to keep your other skills sharp, and it doesn’t have to mean overhauling your career. Start small. Introduce a tool or library into your existing workflow that stretches you beyond your usual stack. It could be something standard enough that your team might actually thank you for it. Then push a little further: take a course, read outside your niche, or start a side project. Build something adjacent. A small utility. An add-on for a system you already know. If it’s useful enough, your organisation might pick it up. The goal isn’t to abandon your specialisation; it’s to make sure that if the ground shifts, you’re not left on a narrow patch.
Some of this is more fun than glamorous. And I’ll be honest, I’m not the poster child for it. I have half a dozen unfinished side projects, a few Udemy courses gathering dust, and my open-source contributions are aspirational at best. I procrastinate. I start things and stall. But even the half-baked attempts count. They’ve kept me current enough to experiment with different stacks, to recognise what’s changing, to stay ahead of the curve in my own slow, imperfect way.
Looking back, working in the same domain was not really a limitation. It is a lens. It shows me where my strengths are concentrated and where they aren’t. That clarity is the point. Because in a landscape that’s shifting faster every year where AI and large language models are already reshaping what “developer” and “consultant” mean, the difference between being replaceable and being ready is whether you’ve built anything beyond the one narrow patch you’re standing on.
