s_tristan
From: Ukraine
Location: Poznań, PL
On Useme since 1 March 2026
About me
I build custom business systems — ERP, CRM, and process automation — that streamline how a company runs and bring order to its data. With 29 years in IT, I work end-to-end: first I learn your real business processes, then I design the right architecture, and finally I deliver a working, maintainable solution — from analysis to deployment. How I can help:
custom ERP/CRM software (.NET, C#, Blazor, DevExpress XAF/XPO, ABP), business-process automation and system integration (APIs, ETL), AI / LLM automation — document and email processing, classification, reporting, analysis and architecture review of existing systems.
Domain experience: intellectual property and patents (12 years) and ISA-95-compliant manufacturing systems (MES). Top Rated on Upwork, with $300,000+ delivered. I work remotely, on time, and to the point. Tell me what you'd like to build or improve — I'm glad to help.
Categories
CV / Résumé
Dec 2023 - Now
CEO & Software Architect
Entirety Software
Software Architecture Consultation; Custom business application development for SMB;
May 2018 - Dec 2024
Senior .NET Engineer & Solution Architect
Tecan CDMO Solutions
Building ERP/MES for medical corp. ISA-95 standard & AI integration with business data. Result: Effective MPI management, complex document approval workflows, e-Signatures, and real-time hierarchy of dynamic classes.
Jun 2006 - Mar 2018
.NET Software Engineer, System Administrator
ZESTAD - IP Law Company
Building: patent & CRM apps, ETL agents, Patent Office integration, and website. Administering local/remote offices, VMs, and DBs. Result: automated patent tracking/billing, auto-notifications, CRM management, mass mailing, and modern web presence.
Portfolio
Modernization of legacy MES. Scalable, flexible solution for multi-facility use, enhancing visibility and intelligent automation. Result: Improved process optimization, efficiency, and real-time operational control.
Centralized role-based PDF signing system. Multi-signatory support, role-specific actions, and auto-notifications. Result: Streamlined submission, tracking, and approval, significantly reducing internal workflow bottlenecks.