I — Expertise
SAP systems architecture
We optimize the digital core of the organization, focusing on performance, scalability and stability of financial and operational processes.
Enterprise IT Partner · Poznań, Poland · Est. 2026
Engineering stability for the enterprise world.
NexoSoftware helps organizations build stable, scalable and secure SAP, ERP systems and business processes. We design solutions that support real growth — not just a technology showcase.
Uptime
99.98%
VendorAmountStatus
Microsoft AzurePLN 12,400Approved
Deloitte AdvisoryPLN 28,000AI reviewing
Oracle License Q3PLN 45,600Approved
Our pillars
Capabilities that support mission-critical business areas.
II — Engineering
Strategic engineering partners
We build expert teams that combine engineering discipline, accountability and strategic thinking about product and process.
III — AI / Automation
Intelligent process automation
We use AI and automation to streamline document workflows, analytics and operational control in enterprise companies.
The Nexo Manifesto
"At NexoSoftware we set standards where others settle for compromises. We design systems that support stable organizational growth and operational security at enterprise scale."Engineer the Future
Why NexoSoftware?
A partner who understands business accountability.
- ✦
An elite way of working together
We reject volume over value. Every project is led by a team with the right level of expertise and direct involvement of leadership.
- ✦
Executive-level competence
We understand KPIs, ROI and operational risk. We deliver solutions that support real business decisions.
- ✦
A relationship built on value
We focus on effectiveness, reliability and long-term system performance — not on billable hours.
Who we are
The people building NexoSoftware.
A leadership team that combines business accountability with engineering precision.
Dawid Łukaszyk
Co-founder & CEO
Leads strategy and operational efficiency at NexoSoftware, turning technology bottlenecks — like SAP-to-KSeF integration — into streamlined business processes. Builds systems that combine reliability (99.9% uptime) with real business value.
LinkedIn ↗
Michał Muller
Co-founder & CTO
Leads frontend architecture and the AI-assisted development team behind KSeF and SAP integrations. Computer Science student at Lodz University of Technology, focused on the intersection of enterprise software and AI-native workflows.
LinkedIn ↗In-house product
FactFlow — intelligent automation for invoices and expenses.
NexoSoftware's proprietary SaaS platform automates documents, classifies expenses and gives you better control over financial and ERP processes.
FactFlow v2.1Dashboard
Documents / month2,847
Tax savings+34%
| Vendor | Amount | Status |
|---|---|---|
| Microsoft Azure | PLN 12,400 | Approved |
| Deloitte Advisory | PLN 28,000 | AI reviewing |
| Oracle License Q3 | PLN 45,600 | Approved |
Case studies
What we built — and how it actually works.
No mockups. Real deployments, real screenshots and real numbers from live projects.
FactFlow — SAP ↔ KSeF integration bridge
Challenge
PAS Polska needed a secure connection between their SAP system and Poland's government KSeF API — without rebuilding their entire ERP and while meeting strict security requirements.
Solution
We built a dedicated middleware in a Tauri (Rust) desktop architecture, a C# (.NET 8) backend handling RSA authorization and KSeF API communication, and an OCR module (Nexo-OCR Vision) for automatic document capture.
- PLN 150,000 value of the first pilot contract
- Maintaining and operating infrastructure for 450+ users
- Handling core SAP accounting transactions (FB60, MIRO) and structured FA(3) invoices
- Financial calculations run on a deterministic engine — zero risk of LLM-generated errors
Early Access (Beta)
BillFacto — B2B2B document workflow portal
Challenge
Accounting offices lose significant time manually entering client invoices and are looking for ways to scale margins without hiring more staff.
Solution
We built a B2B2B document workflow portal with an AI CFO module — AI translates financial data into plain language for management, while the actual calculations and balances run on deterministic database logic, not a language model.
- From PLN 139/month for the entire accounting office
- PLN 0 on the client company side
- No limit on the number of companies per plan
- Distributed through the 360 Księgowość accounting office network
In development
CostTrim — intelligent AI cost optimization proxy
Challenge
Teams using OpenAI, Claude, Groq, DeepSeek or Llama APIs don't know what their AI actually costs until the bill arrives — and standard observability tools only report cost, they don't reduce it.
Solution
We built a drop-in proxy that sits between the application and AI model providers. CostTrim tracks cost, tokens and latency per user, and its Inline Auto-Optimization Proxy trims prompts and reroutes simple requests to cheaper models in real time — before the bill happens, not after.
- Up to 85% reduction in AI request costs automatically, with no code changes
- Drop-in integration with OpenAI, Claude, Groq, DeepSeek and Llama API
- Stack: Next.js, Docker, PostgreSQL
- Public live demo — real cost math, no signup required
Partners
We work with trusted business partners.
We build relationships with companies that, like us, value quality, accountability and long-term value.
Frequently asked
Before you ask — we've probably answered it here.
If you don't find your answer below, just reach out.
How much does working with NexoSoftware cost?
Pricing depends on scope — SAP integration complexity, number of users and the level of automation involved. We don't sell off-the-shelf packages; every project starts with a consultation where we scope out real requirements and pricing tailored to your organization.
How long does a typical implementation take?
It depends on integration complexity — from a few weeks for smaller automations to several months for a full SAP integration with external systems (as with the FactFlow project). We set a realistic timeline with concrete milestones at kickoff.
Will you integrate with our existing SAP/ERP without rebuilding it?
Yes — that's our specialty. On the FactFlow project we built a dedicated middleware connecting SAP to the government KSeF API without touching the client's existing ERP.
How are you different from a typical software house?
We don't just "ship code." We understand the business and operational risk behind the technology — every project is led by a team with the right level of expertise, not whoever happens to be available.
What about data security and GDPR compliance?
We design every project with security built in from the start — including RSA authorization and deterministic engines instead of an LLM black box for financial calculations. Our privacy policy explains how this website itself handles the data it collects.
What happens after the implementation is done?
We don't stop at launch — we maintain and evolve the infrastructure (for 450+ users on the FactFlow project, for example) as a long-term partnership, not a one-off engagement.
Contact
Let's talk about scaling your IT.
If you're looking for a partner who can carry the responsibility for your company's critical systems, we're ready to talk.