The Best Career Move: From Mid-Level Developer to Head of Python & Go in 6 Years

People in tech usually switch jobs every couple of years — that's just how the market works. But Nina has been at 01.tech for almost six years, and not without good reason. In that time, she went from mid-level developer to Head of Python & Go, became a mentor, started speaking at conferences, and even had a baby along the way.

But let's take it from the top. Here are the key milestones, decisions, and the environment that make this kind of growth possible.

Things moved fast: one interview, one offer.

— I didn't even have time to think it over much. I just accepted and showed up. But within a week, I knew this was exactly the place I'd been looking for. A big part of that was building the team from scratch — shaping the engineering culture, writing our own rules. That gave me a sense of ownership and real investment right from the start.

The beginning didn't look particularly strategic. But as the product grew, so did the demands: higher load, more complex systems, new technical constraints.

— The work started getting more serious. We had to handle high-load environments, think about stability, and scaling. It was a completely different level.

Growth came through tasks that kept pushing past the edges of what felt familiar.

— Every next stage asked more of me. I had to pick up new languages, new technologies, figure out things I'd never touched before.

Over time, it wasn't just the work that changed — the role itself did.

— At some point you realize you can't just write code and close your own tickets anymore. There are people who need support, direction, decisions.

Leadership skills didn't appear overnight; they built up through practice.

— I didn't follow some deliberate path to become a mentor. It just happened because it needed to.

New areas of responsibility gradually appeared: team management, contributing to company growth, public speaking.

— I started speaking at conferences, sharing what I'd learned, representing our brand. That became part of the job, too.

Today, Nina's role looks very different from where she started.

— About 60% of my time is management now. Lots of calls, tracking project statuses, helping shape our tech radar.

— It means a lot to still be working with the people I started with. It gives you the feeling that you're not on this journey alone. And it's not about habit or inertia — every year, we actively choose this company, this brand, these products. It's a deliberate choice.

Over time, the work became something more personal.

— It's like a second child to me. My first one, by the way, I also managed to have during these six years.

— Self-fulfillment. Though I'd really want to add: pride in the teams I've had the privilege of working with.

At 01.tech, we operate in an environment where you set the pace and direction of your own growth. You can start with a single task, gradually expand your scope, shape the processes — and eventually become the person defining how everything works.

It takes initiative and a willingness to take on more. But in return, you get something genuinely hard to find elsewhere: real room to grow, the freedom to try new things, and the ability to see your decisions actually change the product and the people around you.

This might just be the environment where you reach your potential. Check out our open roles and send your application.

We are 01. By experts. For impact.