A practical guide for clients
How to choose a starting point for custom software or systems integration, and what to include in your first message.
Read the client guide on LinkedIn
Technology with business purpose
Custom business software, API integrations and process automation for owners, managers and operations teams. We connect scattered tools and reduce repeated manual work, remotely across Bulgaria and Europe or at your office by arrangement.
What we do
From an unclear operational challenge to a maintainable solution, the work stays connected to the way your company actually runs.
Clear technical perspective for managers, owners and growing businesses.
Explore this serviceWeb applications and internal tools shaped around useful business outcomes.
Explore this serviceBack‑office workflows, operational structure and thoughtful automation.
Explore this serviceConnected services and reliable data flows across the systems you depend on.
Explore this serviceProject coordination, diagnosis and improvement of existing solutions.
Explore this serviceWays to work together
Choose the smallest engagement that can produce a useful decision and a credible delivery path.
A paid, time-boxed discovery producing a process and data map, visible risks and priorities, an architecture and delivery roadmap, and pragmatic next steps.
Senior technical direction with hands-on implementation of critical paths, aligning owners, operations, product, suppliers and engineering from decision to release.
Ongoing technical leadership for roadmap, supplier and team coordination, architecture choices and continuous delivery improvement.
Before we talk
Explore the work and prepare a useful project enquiry. Our website case studies describe the role, scope and delivery status of each example.
How to choose a starting point for custom software or systems integration, and what to include in your first message.
Read the client guide on LinkedInFollow Greenwall’s company updates and the portfolio overview, alongside the detailed case studies on this site.
Visit Greenwall Business Systems on LinkedIn Read the portfolio post on LinkedInA management loop
We connect information, decisions, execution and learning into one understandable operating rhythm.

About Greenwall
Greenwall Business Systems combines long‑term software experience, practical business thinking and an interest in sustainable, well‑organised systems.
The natural identity represents balance, resilience and perspective. It is the character of the brand, not a claim that the company builds vertical gardens.
Founded on 8 January 2024 and registered in Sevlievo, Bulgaria. We have no public walk-in office; work is remote or at the client’s office by arrangement, including Sofia.
Founder and technical partner
Business Technology Consultant | Full-Stack Developer
Founder Nikolay (Nik) Nenkov leads consulting and implementation personally. Other specialists can join for the agreed scope, connecting business decisions with hands-on software delivery.
Explore Nik’s perspective
Start a conversation
Send a short note about the context and the outcome you are looking for. This channel is for business projects, partnerships and company enquiries.
Public contact
nik@greenwallbusiness.com+359 89 238 7117Direct contact with Greenwall Business Systems