Rense Posthumus works for the Ministry of Finance in the Netherlands. His background lies in mathematical systems and modeling. Since 2009, he works in the budget office as a policy advisor. Beforehand, he was the first information architect of the Ministry of Finance. A leading element in his career is the presentation and combination of HRM and financial data. In 2012, he was the project manager for harmonizing the cost types across all ministries, and he also helped to introduce a new system of accountable budgeting: http://www.oecd-ilibrary.org/governance/introducing-accountable-budgeting_budget-12-5k455r12vs37 for the presentation of the Dutch budget memoranda.
In recent years, he has been a driving force for making the budget more transparent and releasing it in the form of open data.