INDEPENDENT BUSINESS & TECHNOLOGY CONSULTANCY
Clear requirements. Connected teams. Purposeful delivery.
one4all consulting is the independent practice of Tamás Kosina. Work directly with a senior delivery lead and product owner to turn business challenges into working systems across SAP, Salesforce and Oracle.
Discuss your project Explore our servicesDefine the problem and the outcome that matters.
Connect business needs, systems and delivery teams.
Validate the solution and support the people using it.
EXPERIENCE GAINED WITH
Selected organisations from Tamás Kosina’s career.
01 / HOW WE CAN HELP
Hands-on support where business decisions and technology delivery meet.
Keep complex transformation moving with a clear scope, coordinated teams and a practical delivery plan.
Turn business priorities into a roadmap and backlog that give delivery teams clear direction.
Understand the current process, identify the gaps and define a better way of working.
Translate business needs into requirements for connected sales, service and operational systems.
Salesforce · SAP · Oracle CPQ · ServiceMax · Microsoft Dynamics 365
02 / SELECTED EXPERIENCE
Selected engagements from the founder’s career across public institutions, healthcare, manufacturing and financial services.
ENERGY MANAGEMENT & AUTOMATION
Apr 2026–present
Current engagement as Digital Project Manager / Delivery Lead, coordinating enterprise transformation across SAP, Salesforce and Oracle, with cross-functional alignment and platform integration.
PUBLIC SECTOR & INTERNATIONAL DEVELOPMENT
2024–2026
Product roadmap and backlog management, business analysis, solution design and validation for incremental improvements to the digital platform.
OWNER-MANAGED BUSINESSES
Sep 2023–present
Process modelling, gap analysis and business case preparation for smaller organisations, using AI prompt engineering to support analysis and solution design.
MANUFACTURING
Nov 2022–Sep 2023
Requirements and delivery support for EMEA pricing and sales teams, covering Sales Cloud, CPQ and integrations with downstream enterprise applications.
GLOBAL HEALTH
Apr–Nov 2022
Business process mapping, requirements, user stories and acceptance testing for a new tool supporting portfolio and project management.
MEDICAL TECHNOLOGY
Jan 2021–Apr 2022
Service Cloud requirements and process improvements, with support for an EMEA telephony rollout and a customer service chatbot solution.
HEALTHCARE TECHNOLOGY
Jan 2020–Jan 2021
Backlog management, value stream mapping and user story mapping for medical service processes, supported by business and system process modelling.
WEALTH MANAGEMENT TECHNOLOGY
February 2018 – December 2018
Stakeholder workshops and requirements for wealth and asset management solutions, with UML modelling to clarify business processes and system interactions.
FINANCIAL SERVICES
Apr 2014–Jul 2017
Requirements, interface analysis and data distribution specifications for investment products, followed by requirements traceability and integration changes for client tax reporting.
EUROPEAN PUBLIC INSTITUTIONS
Mar 2019–Jan 2020
Process modelling, gap analysis, feasibility assessment and requirements specification for replacing an Oracle Forms back-office system.
FINANCIAL SERVICES
Mar 2013–Jan 2014
Business analysis and backlog support for a global collateral management dashboard, with integration requirements and UAT coordination for users across London, Hong Kong and New York.
Financial data management and process automation at Bloomberg, Citi and Capita; enterprise process mapping and disaster recovery work at KBC and IBM; and SAP data reconciliation at ExxonMobil.
03 / HOW I WORK
The right method depends on the challenge.
I start with stakeholder conversations and the current process, then define the gaps, priorities and requirements. Lean thinking and Agile or traditional delivery practices are chosen to fit the work.
I stay involved through delivery: clarifying requirements with developers and architects, coordinating validation, and preparing users for adoption and handover.
THE CONSULTANT BEHIND ONE4ALL
Business Owner & Independent Consultant
04 / ABOUT ONE4ALL
Founded in 2022, one4all consulting Kft is led by Tamás Kosina, a product management, business analysis and digital delivery professional with professional experience since 2006.
His career spans financial services, healthcare, manufacturing and European public institutions. He works with stakeholders and delivery teams across EMEA, APAC and North America, translating business objectives into requirements, product priorities and coordinated delivery.
You work directly with Tamás throughout the engagement, from discovery and requirements to delivery, testing and adoption. This keeps business context and delivery decisions connected as the work progresses.
Analysis: BPMN, UML, value stream mapping, gap analysis and requirements prioritisation.
Delivery: Agile, Lean, Jira, Confluence, integration testing and user acceptance testing.
Modelling & data: Enterprise Architect, Lucidchart, Miro, SQL, Excel and Python.
AI-assisted analysis: Prompt engineering to support process analysis and requirements work.
Hungarian — native · English — full professional proficiency
Master’s in Business Economics & Management
Szent István University, Hungary
BSc Honours
Dronten Professional University, Netherlands
05 / LET’S TALK
Tell me about your project, the challenge you’re facing
and where you need support.