Open to opportunities

Ioan MARIAN

@ioanmarian

Message

I build scalable .NET enterprise platforms with measurable performance gains and durable operational ownership.

Romania

Message

What I'm looking for

I'm looking to own and evolve complex enterprise platforms where scalable architecture, measurable performance, observability, and knowledge transfer help the organization operate independently.

I'm leading the technical ownership of an operational and financial platform for a construction and infrastructure organization undergoing rapid growth. I translate business requirements into scalable data models, architecture, C#/SQL implementation, observability, production delivery, and knowledge transfer.

Across enterprise engagements, I've achieved orders-of-magnitude improvements by restructuring data access, reducing repeated work, isolating reusable datasets, and measuring execution stage by stage. I build logging around business scenarios, volumes, timings, errors, p50/p95/p99, and regression trends so performance remains measurable over time.

At Vente Privee, now Veepee, I maintained the SharePoint environment supporting live business operations during international expansion and delivered an approximately 6x speed-up on a critical third-party-code path. For Europe Airpost, I owned and migrated an internal SharePoint platform across SharePoint 2003, 2007, and 2010 while delivering business applications, production support, and operational continuity.

I've built reusable ASP.NET, SharePoint, workflow, and metadata-driven application engines used across enterprise contexts. I design systems to be understood in the code and continued by other specialists, using conventions, training, documentation, and controlled AI-assisted delivery to make organizations more autonomous.

Experience

Work history, roles, and key accomplishments

Current

Senior .NET Developer

Current

Confidential Enterprise Engagement

May 2022 - Present (4 years 3 months)

Primary technical ownership of an operational and financial platform, delivering scalable data models, architecture, and production-grade code. Achieved orders-of-magnitude performance gains through structural optimization and built observability into execution.

C#SQL Data Modeling Architecture Performance Optimization Observability Logging Knowledge transfer

SharePoint Developer

TotalfSoft

Nov 2019 - Jun 2022 (2 years 7 months)

Developed SharePoint Online workflows, C# APIs, Power Automate, and Power Apps. Performed security remediation and platform modernization across SharePoint generations.

SharePoint Online C#Power Automate Security Modernization

C#, ASP.NET MVC & Xamarin Developer

Everest Software

Apr 2016 - Nov 2019 (3 years 7 months)

Developed ASP.NET MVC applications for automotive, tourism, and financial calculations, plus Xamarin Android/iOS applications and scheduled Windows services. Created websites and mini-CMS solutions.

C#ASP.NET MVC Xamarin Android iOS Windows Services CMS

SharePoint & ASP.NET Developer / Platform Lead

Europe Airpost

Apr 2005 - Feb 2014 (8 years 10 months)

Primary technical ownership of an internal SharePoint platform across nine years, including installation, configuration, and migration across SharePoint 2003, 2007, and 2010. Developed reusable Web Parts and provided production support.

SharePoint ASP.NET Web Parts Migration Production Support Knowledge transfer

SharePoint Consultant / Platform Technical Lead

Veepee

Nov 2008 - Nov 2013 (5 years)

Primary technical ownership of SharePoint environment for live business operations during rapid international expansion. Delivered reusable applications and achieved a 6x speed-up on a critical path.

SharePoint Development Administration Deployment User Support Training Patching Reusable Applications Performance Optimization

Solutions Architect and C#/SharePoint Developer

AM Info Concept / New System Design / Independent Work

Jan 2004 - Dec 2008 (4 years 11 months)

Delivered C#, ASP.NET, and SharePoint solutions across confidential enterprise engagements, adapting a reusable core to different platforms and organizations.

C#ASP.NET SharePoint Architecture

C#/.NET, ASP.NET & SharePoint Architect-Developer

Giraud International

Nov 2004 - Jul 2007 (2 years 8 months)

Designed an ASP.NET application engine rehosted in SharePoint 2003 and 2007, expanding into a library of reusable components. Delivered approximately 30 business applications using the engine.

C#ASP.NET SharePoint XML XSLT Cursor Based Pagination Business Objects Architecture

VB6 / ASP Developer

DP2I

Jan 2001 - Dec 2004 (3 years 11 months)

Designed ID-first pagination with deterministic ordering and late loading, reducing a business list from tens of seconds to under one second. Designed a metadata-driven ASP.NET engine with reusable models.

VB6 ASP.NET Cursor Based Pagination XML XSLT

VB/Access Developer, then COBOL/VB6 Developer

Arep / Toptech / Viveo

Jan 1998 - Dec 2001 (3 years 11 months)

Started career on business applications, databases, and financial systems, then progressively specialized in application architecture and performance.

Access COBOL VB6 Databases Financial Systems

SharePoint / Workflow Architect-Developer

Cegedim, Icade, Veolia Water Services, AXA

Delivered configurable XML/XSLT engines, workflows, business components, and migrations while prioritizing operational risk. Resolved complex scopes and transferred methods to architects and client teams.

SharePoint XML XSLT Architecture Migration Risk Management