Work and delivery evidence
Selected work across business systems, data-heavy products, integrations and technical delivery. Confidential engagements are anonymised; implementation status and evidence boundaries are stated directly.
First-wave case studies
Each case separates the problem, architecture, Nik’s responsibility, verified delivery and honest current status.
A staged business-systems programme connecting fragmented operational information, role-based workflows and a practical path from a working foundation to broader logistics and reporting capabilities.
A software foundation for turning imported supplier data into governed categorisation, performance and spend workflows for a distributed product team.
An end-to-end product path from physical GPS trackers and MQTT messages to Go services, APIs and a Vue.js map and administration experience.
A public-data product exploring how cadastral, company, statistical and map information can support property research through 2D/3D views and structured workflows.
Ways 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.
Selected engagements
Short, public-safe summaries without client screens, confidential details or unsupported impact claims.
Java road and traffic-signal services, SUMO simulations, virtual controller environments, remote configuration, and delivery tooling with Terraform, Jaeger and InfluxDB.
A JavaFX and Spring Boot administration product for Windows and macOS integrating MQTT-connected devices and a legacy data model through ORM/JPA.
Integrated Sportradar widgets into an Angular mobile WebView and designed a reusable Angular and TypeScript integration library.
Monitoring, signal research and paper-only evaluation in Rust. It is an engineering lab and does not execute automated trades.
Publishing standard
Names are used only where the professional source supports them. Metrics, logos, testimonials, screenshots and customer outcomes are omitted unless they are verified and permitted for public use.
Tsar Bahar back-office development was a collaboration with KONTAKT-VN EOOD, supported by Mr Chamurov over several months. The Tsar Bahar name belongs to KONTAKT-VN; credit for the work is shared. Individual module statuses remain as described in the project material.
Greenwall was founded in January 2024. Earlier independent projects and employment engagements describe the founder’s experience; they are not claims of company clients or company activity before incorporation.
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 LinkedInStart a useful conversation
A paid, time-boxed assessment can turn processes, data, constraints and delivery risks into a pragmatic roadmap.
