Mariusz Gajda
From: Poland
Location: Uwieliny
On Useme since 18 September 2026
About me
Chief accountant with over 20 years of experience in manufacturing and trading companies, and enova365 implementation consultant and administrator. I have independently handled full accounting under the Polish Accounting Act, HR and payroll, VAT, CIT and PIT settlements, social security (ZUS) returns and financial statements, and represented companies during tax and ZUS audits. I still keep the books of my own company, so I speak the language of accounting and business, not only technology.
In enova365 I work with: • production, warehouse, sales, fleet, service and project cost controlling, • KSeF (Polish e-invoicing) - FA(3) schema, tokens and certificates, automated purchase invoice import, • import matrices, algorithmic features and C# add-ons (enova365 SDK), • SQL and Power BI reports, integrations with Microsoft 365, Calamari and make.com.
Descriptions of deployed add-ons are in the portfolio below. I also build automations and AI agents for enova365 (Claude Code, Anthropic API, MCP).
Categories
CV / Résumé
Jun 2023 - Jul 2026
ERP Implementation and Integration Specialist
Logisystem Sp. z o.o.
enova365 implementation (production, warehouse, sales, fleet, service, project controlling) and KSeF: FA(3) schema, automated invoice import. Import matrices, algorithmic features, C# add-ons (SDK). SQL and Power BI reports, M365 integrations.
Jan 2022 - Jul 2026
ERP Implementation Specialist (enova365)
Plus Automatyka Dariusz Szymański
Process analysis and enova365 implementation: production, warehouse, fleet, tools, cost controlling. KSeF for incoming invoices (FA(3), tokens, certificates). Import matrices, C# add-ons, SQL and Power BI reports. User training.
Nov 2010 - Mar 2013
Chief Accountant
P.W. SEA Adam Ambroziak
Full accounting and financial reporting for an electrical wholesaler. Tax returns, debt collection (including with bailiffs), cash flow management. RAKS SQL system implementation with data migration and user training.
Jul 2006 - Apr 2008
Chief Accountant / Financial Manager
SICES Polska Sp. z o.o.
Manufacturing company of an Italian group (over 200 staff). Accounting policy, FK system implementation, building a 5-person finance team, budgeting and production costing, financial statements and tax returns, guarantees, letters of credit.
Dec 2000 - Now
President of the Board / Chief Accountant
Trynity Sp. z o.o.
Managing a consulting company; projects for SMEs: process optimisation, accounting, finance, IT. Independently keeping the company's full accounts, financial statements, VAT/CIT, ZUS. Since 2025 AI projects: agents, API integrations.
Portfolio
GitHub profile with functional descriptions of deployed enova365 add-ons and configurations: KSeF purchase invoice flow, sales invoicing, controlling, master data. Each covers the problem, process and design decisions. No client code or data.
enova365 add-on that imports material purchase invoices from KSeF and matches their lines to purchase orders. It creates the material purchase record and notifies the right people about errors that block the import.
enova365 add-on that issues the full set of monthly subscription invoices for all recurring service contracts in one run, with currency conversion, clauses, split payment and KSeF files.
enova365 add-on for invoices from suppliers outside KSeF (mostly foreign): an invoice entry form, then automatic linking to purchase orders, conversion to PLN and cost allocation to projects.
Unambiguous addressing of enova365 screens with a window code. Makes user tickets and implementation documentation easier: instead of describing 'the window on the next tab', you give a code that leads exactly to that place in the system.
Map of a complete solution: from the file downloaded from KSeF, through automatic classification and import, to a purchase record with a full analytical description, closing the order - delivery - invoice loop. Database features and C# add-ons.
enova365 add-on: a sales invoice from a service order in one click - pre-check, dates, exchange rate, lines, split payment, full set of attachments, approval and KSeF file.
enova365 add-on answering a controlling question: how much of what the invoice paid for was actually received into the warehouse. Result as a percentage - per analytical description line and for the whole document.
enova365 add-on: with one click it converts all analytical description lines of a foreign-currency purchase invoice to PLN at the applicable NBP average rate, after checking that the description is complete.
Quality gate for the item master: code and name validation when an item card is created. It keeps the indexing standard for materials and products, a precondition for meaningful inventory and production cost reporting.