A decision-ready technical direction
Turn competing needs, risks and options into a roadmap that owners and delivery teams can discuss together.
Professional services by Nik Nenkov
Business judgement, full-stack delivery and clear communication for complex technology work.
I help owners, managers and delivery teams move from an uncertain business question to a useful technical direction, working software and an operating model people can understand.
The context
Useful across the space between business intent and production reality.
My work combines more than eight years in enterprise, product and outsourcing environments with independent product development and earlier experience as a student tutor. I can speak with business stakeholders, shape systems and remain hands-on through implementation, tests, deployment and production diagnostics.
I am based in Sevlievo, Bulgaria, and available for work at client sites in Sofia, hybrid collaboration in Bulgaria and remote work across Europe. This availability does not represent a Greenwall office in Sofia.
I work through Greenwall Business Systems for business-to-business engagements, while this section explains the individual capabilities, working style and professional evidence behind that offer.
Business outcomes
How I can contribute
The strongest fit is work that needs technical depth without losing the business conversation.
Hands-on end-to-end delivery
Connect data modelling, APIs, interfaces, integrations, testing, cloud deployment and production visibility.
Stronger people around the system
Explain complex topics, frame useful tasks and support interns, junior colleagues and non-technical stakeholders.
Selected capabilities
Selected mature capabilities
The exact combination follows the problem, the existing environment and the people who will own the result.
- Business analysis, technical strategy and delivery roadmaps
- Distributed systems, microservices, APIs and event-driven workflows
- ETL, file and email workflows, MQTT and time-series data
- AWS, Azure, Terraform, Docker and CI/CD delivery
- Test automation, distributed tracing and production observability
- AI agents, chat, workflow assistance and visual recognition
- Stakeholder communication, project coordination and mentoring
Working process
A working style that keeps context close to delivery
- 01
Listen across roles
Understand the owner, user, product, operational and technical views before narrowing the problem.
- 02
Make choices explicit
Explain options, trade-offs, dependencies and risks in language each decision-maker can use.
- 03
Stay close to the work
Translate direction into code, integrations, tests, releases and resolved production issues.
- 04
Leave shared understanding
Support handover, mentoring and documentation so progress does not depend on private knowledge.
Relevant experience
Breadth grounded in delivered systems
The experience crosses business domains, technical layers and different stages of product maturity.
Enterprise and operational platforms
Work includes procurement and spend analysis, physical access control, back-office and ERP-style systems, ticketing and digital payments.
Distributed and real-time products
Experience includes GPS and IoT tracking, smart mobility, MQTT devices, time-series market data, cloud infrastructure and tracing.
Independent modern product work
Recent projects include a 3D property intelligence platform and AI-assisted business interfaces with chat and visual recognition.
Good fit
Conversations I welcome
Employers and delivery leaders
You need a senior full-stack developer and consultant who can contribute across product, systems and communication.
Clients, owners and investors
You need a credible technical view, decision-ready product context or hands-on help turning a plan into a system.
Partners and people developing their skills
You value clear explanation, direct collaboration, mentoring and responsible knowledge transfer.
Questions
Professional engagement questions
Do you work only as a consultant?
No. My background is hands-on full-stack development. I can contribute through discovery and technical direction, then continue into implementation, integration, tests, deployment and diagnosis.
Can you communicate with non-technical decision-makers?
Yes. Business consulting and tutoring experience help me translate complex choices into consequences, risks and next actions without hiding the important detail.
How are business engagements arranged?
Business-to-business projects are handled through Greenwall Business Systems. The first conversation establishes context, fit and a sensible next step.
Ways to work together
Three clear ways to move a difficult system forward.
Choose the smallest engagement that can produce a useful decision and a credible delivery path.
- 01
Operational Systems Assessment
A paid, time-boxed discovery producing a process and data map, visible risks and priorities, an architecture and delivery roadmap, and pragmatic next steps.
- 02
Build & Delivery Leadership
Senior technical direction with hands-on implementation of critical paths, aligning owners, operations, product, suppliers and engineering from decision to release.
- 03
Fractional Technical Partner
Ongoing technical leadership for roadmap, supplier and team coordination, architecture choices and continuous delivery improvement.
Contact
Start with the situation that is difficult to explain or move forward.
Share the business context, system and people involved. I will help identify where I can be useful.