About

Work directly with an experienced consultant, from the first conversation through delivery.

THE CONSULTANT BEHIND ONE4ALL

Tamás Kosina

Business Owner & Independent Consultant

Budapest, Hungary
International project experience

ABOUT ONE4ALL

Senior experience.
Personal involvement.

Founded in 2022, one4all consulting Kft is led by Tamás Kosina, a product management, business analysis and digital delivery specialist who has worked in the field 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.

Methods & tools

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.

Working languages

Hungarian — native · English — full professional proficiency

Education

Master’s in Business Economics & Management
Szent István University, Hungary

BSc Honours
Dronten Professional University, Netherlands

Professional qualifications

Lean Six Sigma Black Belt
PRINCE2 Practitioner
Certified ScrumMaster
Software testing certification
ITIL Foundation
Product & Agile project management
University of Maryland professional certificates

PROFESSIONAL RECOMMENDATIONS

Experience seen by the people I worked with.

Paraphrased summaries of written references and a LinkedIn recommendation from the earlier career of Tamás Kosina. Names and identifying details are omitted.

Connecting business and technology

Recognised for taking initiative to solve problems, producing requirements that met client expectations and collaborating effectively with business, engineering, testing and release teams.

Former employer · Written reference

Moving delivery forward

Recognised for guiding software development work forward and combining business understanding with effective stakeholder and people management.

Former colleague

Practical process improvement

Credited with making a reconciliation process less manual and easier to understand, while improving the information available to management through a reporting tool.

Former supervisor · Written reference

See the recommendations on LinkedIn ↗

Have a challenge in mind?

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