At the heart of Europe’s energy landscape stands a company that doesn’t just participate in the market – it helps define it. As one of Europe’s largest midstream players, a leading LNG importer, and a major hydropower operator powering 1.6 million households, our client works at a scale where decisions carry weight and expertise is everything.
From managing approximately 80 TWh of gas storage capacity to ensuring a reliable, CO₂-free energy supply across different nuclear and hydro plants, the work is complex, cross-border, and critical. It’s the kind of infrastructure that keeps homes warm, businesses running, and the energy transition moving forward.
But behind every megawatt, every pipeline, and every strategic decision is a team of people who make it happen. Today, we’d like to introduce you to the professionals on our side, the dedicated individuals who bring the right skills, at the right time, to one of Europe’s most dynamic energy businesses.
Introduce us to your team.
How Many Specialists Are There, and What Do You Do?
Ten people. That’s the size of this team, but don’t let the number fool you. This is a tightly knit group of specialists with deep technical expertise, each one playing a distinct and essential role in delivering a platform that handles data at a scale most engineers never encounter in their careers.
At the helm is Martin Pavlov, Engineering Manager for Energy & Utilities Management – the person who quietly keeps everything moving, both technically and humanly (more on that later).
The team works across two interconnected parts of the same product. The core is a data management platform that ingests, stores, and analyzes energy data at scale. Built on top of it is a dedicated web frontend that surfaces a specific portion of that data, giving energy analysts clear, meaningful visibility into fuel and commodity price movements.
On the backend, Borislav Boyadjiev and Svetlozar Stefanov are the .NET engineers holding the core of the system together. On the frontend, Hristofor Kostadinov, Daniela Toncheva, and Lili Pavlova are responsible for turning complex data into intuitive, visual experiences, supported by Silviya Kyurkchieva, whose UX/UI work ensures the interface is as thoughtfully designed as the data behind it. Quality assurance is in the hands of Dimitar Dinkov and Anton Tsvetanov – the ones making sure nothing slips through the cracks. And ensuring the infrastructure runs smoothly, securely, and around the clock is Bojan Kostovski, the team’s DevOps engineer (and self-proclaimed night owl).
Together, they maintain and evolve a system that handles energy data at breathtaking scale. We’re not talking millions of data points. We’re talking billions – over 40 billion, to be precise. On the other side of that platform are data analysts and data scientists at the client, exceptional professionals whose domain expertise shapes the direction of what gets built. It’s a collaboration that goes well beyond typical vendor-client dynamics.
What Projects Are You Working on?
Dimitar Dinkov:
“Since I joined the company, I’ve been part of three projects. The first was for an American company in the electrical parts space. My current project, actually overlapped with a project for the Belgian National Lottery for a period of about two years. The current one is a data management system that collects and analyzes data. We’re incredibly lucky that our partners on the client side are exceptional professionals.”
Anton Tsvetanov:
“In short, we work with big data. The focus of the TDDP we’re currently developing is to transform and visualize the constantly shifting prices of fuels and raw materials in a way that actually makes sense to the people using it.”
TDDP isn’t just a reporting layer. The team developed it as a true greenfield product – shaping its direction from the earliest discussions about functionality, through UX/UI design, all the way through to deployment. It’s already partially live, with new features continuing to roll out.
What’s Something That Is Inderestimated in the Energy Sector?
“Front-End,” said Hristofor without even a second’s hesitation. The rest of the team burst out laughing.
Joke aside, he has a point.
In an industry driven by raw data, complex infrastructure, and engineering precision, the user interface often gets treated as an afterthought. But it shouldn’t be. The front-end is where all that complexity meets real people, and if that experience isn’t intuitive, none of the work behind it matters.
And it’s one the front-end trio Hristofor, Daniela, and Lili took head-on. They joined the project without a finished product in hand and built the front-end from the ground up in a matter of months. “By the book, in every way,” is how Borislav describes it. Anton adds that whenever the QA team sends something their way to test, the front-end team is always ready to jump in, no reluctance, no delays, just enthusiasm.
That kind of ownership, especially on something that’s often undervalued, says a lot about who these people are.
How Do You Build a Lasting Partnership That Feels as One Team?
Adaptability and the human side of onboarding.
Borislav Boyadjiev:
“A key factor was how the existing team members welcomed the newcomers. They were incredibly generous in walking us through the platform, what it is, what the purpose is, what we should take from it, and how to connect it to our own work. The transitions were smooth, and over time our bond just grew stronger. We make a real effort to see each other at the office regularly.”
Something else that really resonates is the quality of the collaboration with the client. They’re not just stakeholders handing down requirements, they’re technical professionals who actively contribute to the process. That kind of engagement makes a genuine difference.
What Is the Biggest Recent Achievement of Your Team?
Bojan Kostovski:
“When I joined, the main goal was to migrate the two major energy projects we were running, moving from an older infrastructure to a newer, more secure generation that eliminated public data access. It was supposed to be a lift-and-shift. But as it usually goes, there were a few surprises along the way.”
Cleaning up accumulated imperfections slowed things down, but the end result is something we’re genuinely proud of. One of the more complex requirements was that both the old and new versions needed to run in parallel for several months, the client wanted to be absolutely sure all processes worked flawlessly before switching over. That meant double the workload, double the attention, and double the effort. But it was worth every bit of it.
I’ll try not to be biased when I say this system is not easy to develop or light to work with. It takes real experience. And the team delivered.
How Do You Manage Challenges?
Hristofor: Overtime
Anton: And beer.
Loud laughter. General agreement.
Dimitar:
But seriously, each one of us is fully committed and always ready to support a colleague when needed. Being able to rely on your team is a real privilege. Take Bojan, for example. He works night shifts. If something goes wrong while the rest of us are asleep, he’ll put out the fire before morning.
It Looks Like You Really Enjoy Your Work?
Is it that obvious? What gave us away?
More laughter. But beneath the jokes, there’s something real here.
And the client is part of that equation, too. This team doesn’t just submit tickets and wait. They debug side by side with the client. During the migration, one of the most time-intensive processes in software development, the client stayed the course, stayed late, and never let tension creep in. That kind of partnership is rare, and this team knows it.
Tell Us Something Your Team Is Proud of.
The front-end trio takes the mic.
Starting from zero and building a complete front-end product from scratch, in just a few months, in an industry as demanding as energy? That’s not a small thing. And they did it right.
While talking about achievements, someone mentions that TDDP feels like their “first baby,” and there’s a fittingly personal reason for that. Lili is currently expecting twins, and the team has already floated names: TD and DP – after the project they all poured so much of themselves into.
Author’s note: This team is a genuine example of what great teamwork looks like. I was lucky enough to interview all of them together, in one room, in person. When it’s time to work, they work hard, but the laughter never stops either. And when people laugh that easily together, it means they’ve truly clicked. A special mention to Martin Pavlov, who prefers to stay out of the spotlight but has played an enormous role in building this team into what it is today.
