About D2 — the team building custom internal platforms
We help companies organize their operations into a single system that matches how they already work — instead of forcing teams to adapt to rigid software.
Operations, organized into one system
We design and build custom internal systems that replace spreadsheets and disconnected tools.
Your data, workflows, and processes are structured into one platform built around how your team operates.
This allows you to reduce manual work, improve accuracy, and scale without adding complexity.
Built by operators turned engineers
Volodymyr Demianenko
Volodymyr began building systems for businesses in 2004, solving operational problems long before it became a buzzword.
Over the years, he has led the development of internal platforms for companies like DeLonghi Group, Danone, and other enterprise organizations, seeing firsthand how operations break as businesses grow.
A serial founder, speaker, and constant generator of new ideas, he approaches every project with a strong belief: most operational challenges are not about people, they're about systems that don't fit the business.
Through D2, he helps companies replace disconnected tools and manual processes with systems designed around their real workflows, making operations simpler, more scalable, and easier to manage.
“Operational efficiency comes from systems built around real workflows.”
The people behind every build
Fedir
With more than 20 years at D2, Fedir brings deep expertise in enterprise architecture, backend engineering, and large-scale system development. Focused on building reliable software, solving complex technical challenges, and mentoring engineering teams.
Bohdan
Full-stack engineer with 5+ years of experience building web, mobile, and AI-powered applications. Combines technical leadership with hands-on development, focusing on scalable architecture, product quality, and practical AI solutions.
Anna
Detail-oriented .NET developer who enjoys solving complex challenges collaboratively and bringing clarity to every stage of development. Focused on reliable implementation, strong communication, and smooth team workflows, including Thursday cinnamon coffee reminders.
Valentyna
Full-stack .NET developer building reliable and maintainable web applications across both backend and frontend. Focused on clean architecture, scalable solutions, and delivering practical business value through thoughtful engineering.
Eugene
Full-stack .NET engineer with 7+ years of experience across FinTech, SaaS, and enterprise products. Specializes in scalable backend systems, production-ready AI integration, and building stable solutions for complex business environments. Certified PSM I.
Anna
From navigating cargo ships across oceans to building modern mobile and web applications with React Native, React, and TypeScript. Experienced in startups, fintech, Web3, and AI-driven products, with a strong focus on seamless mobile experiences and product quality.
Maryna
Transitioned from TV set design to digital product design, bringing a unique understanding of composition, visual hierarchy, and user attention. Creates clear, structured, and intuitive interfaces focused on both usability and aesthetics.
Anton
Bridges product vision, technical execution, and team coordination to turn ideas into scalable, digital products. Focused on clarity, predictability, and building delivery processes that perform reliably under real-world conditions.