Elected Charter Member in OSGeo.The Open Source Geospatial Foundation, or OSGeo, is a not-for-profit organization whose mission is to support the collaborative development of open source geospatial software, and promote its widespread use. The foundation provides financial, organizational and legal support to the broader open source geospatial community.OSGeo projects include QGIS, MapServer, GeoServer, PostGIS, GDAL and a lot more.

Consultant on most areas regarding geodata and GIS for several ministries, multiple government agencies, a majority of municipalities, and a quarter of the fire departments.Consultant and architect on high performance setups and hosting of geographical web solutions for a number of larger private sector companies. Consultant on the Open and Free Danish Basic Data for both private and public customers.Advisor on the use of geo- and gis-standards from ISO and OGC. Contributor to, and advisor on, local Danish standards as Danske Beredskabers basic datamodel, FKG/GeoFA and the GeoDanmark specification.Project Manager on 'GeoDK' the technical solution for the national geodata-register, GeoDanmark. The basis for most public mapping in Denmark.Project Manager and client consultancy and requirement analysis in the design- and development-phase of Geokoderen.dk - a cross register geocoding websolution developed for the Ministry of Housing, Urban and Rural Affairs, and later the Ministry of Taxation. The first time the two nationwide registers - "GeoDanmark" (technical maps) and "BBR" (building and dwelling register) - were to be coupled in a live environment. Consultant on the peculiarities of the different mapping standards. The solution was delivered according to budget and before deadline.Expert advice and consultantancy on the National Data Distributor - during pretender-, tender- and development phases. Consultancy on the requirements, the exchange of (very!) large quantities of geodata, efficient serving of geodata. Expert advice on geodata, the specifics on Danish geodata and the geodata-platform in general.Statistical consultant and developer of a model to predict "insurance incidences" under extreme rain (cloudburst). With basis in free open Danish geodata, we developed a model based on more than 20 predictors, which together with the end clients (insurance companies) knowledge of insurance incidences were fitted into a statistical prediction model.

Consultant and systems developer at Grontmijs department for "GIS&IT - Geographical Information Systems."Consultant on several areas regarding geodata - mostly within the use of geodata and GIS in public clients, for instance government, regions and municipalities. Consultant on the possibilities regarding seeing medical statistics in a geographical perspective for the Danish Geodata Agency. Consultant on the use of FOT (Danish mapping standard) data.Development of new methods for using height models in Spatial Suite. Development of a number of production webservices therein a regionalized Open Street Map webservice and the "OIS Temakort" (data from the Danish Public Information Server) webservice.Design of and consultancy on physical implementations of FKG Datamodellen (Datamodel for The Common Municipal Geo data Collaborative) - a large data model for municipal data. The model was designed with simplicity in mind with several abstraction layers from simple views to more advanced tables and relations. Implementation and design of advanced triggers to handle its history model, and to integrate to several of the big desktop GIS (Geomedia, ESRI ArcGIS, MapInfo and Quantum GIS). Development of methods for reflective generation of large parts of the physical implementation of the datamodel, to lower production costs and ensure an error free implementation of the many tables, views and functions. Consultant on installations and management of the database model on MS SQL Server 2008r2 (and above).Goto-guy and consultant on open source geo tools like Quantum GIS, Mapserver, Mapnik, Mapproxy, Geoserver, PostgreSQL/PostGIS, OGR, GDAL etc.

Research and development of methods to improve production, new products, quality control etc. Problems in a broad spectrum from 3D geometry, applied statistics, mathematical modelling, database development and administration, etc.Technical consultant (pre- and post-sales) internally as well as externally on the BIS (Blom Information Services) range of products, therein BlomURBEX - an internet based platform for delivery of our products. The technical consultancy is not only done within Denmark but also for the Blom Group internationally, and includes pre- and post-sales consultancy on technical solutions for prospects and clients, development of show case solutions, internal consultancy for sales personnel on bids and offers, commenting and creating presentations, external training of clients and partners, etc.Project manager on a number of projects from small to large scale, and brought in as project consultant on a number of high risk projects.Advisor to the Danish AgriFish Agency on several projects regarding the Danish streams and marshes. This included the development of new algorithms to extract information about streams from the point clous behind the national height model, and statistical methods to identify areas with certain characteristics.

Research and development of methods to improve production, new products, quality control etc. Problems in a broad spectrum from 3D geometry, applied statistics, mathematical modelling, database development and administration, etc.Technical consultant (pre- and post-sales) internally as well as externally on the BIS (Blom Information Services) range of products, therein BlomURBEX - an internet based platform for delivery of our products. The technical consultancy is not only done within Denmark but also for the Blom Group internationally, and includes pre- and post-sales consultancy on technical solutions for prospects and clients, development of show case solutions, internal consultancy for sales personnel on bids and offers, commenting and creating presentations, external training of clients and partners, etc.Project manager on a number of projects from small to large scale, and brought in as project consultant on a number of high risk projects.Advisor to the Danish AgriFish Agency on several projects regarding the Danish streams and marshes. This included the development of new algorithms to extract information about streams from the point clous behind the national height model, and statistical methods to identify areas with certain characteristics.

In charge of IT-strategies and development of IT-systems. Much work done in consulting on - and development of - Internet systems to the support of medical studies, ie. designing systems for collecting medical data on patients from general practice as well as government clinics and hospitals. Customers are large international medical companies. Managed the projects from helping the client reach a specification of the product, over the development process, to final product and the following support. Also managed a small team of student developers working on the projects. Designed and developed systems for quality management in production systems (therein a large international insulation company), and in the Danish health care system. Scientific work on statistical aspects of studies, therein co-authoring a number of articles, and some posters and presentations at international conference etc. See list of publications at DTU Orbit: http://orbit.dtu.dk/en/persons/hans-gregers-petersen(1de4d06b-df83-4571-a60c-0620bd72aec6)/publications.html

Teaching assistant in several statistics courses at Informatics and Mathematical Modelling at the Technical University of Denmark (DTU).This included class room teaching after lectures, student guidance on solving statistical problems, one-on-one coaching, and for one of the courses included student guidance and coaching throughout their three week long projects.

Consultant on the use of webGIS and internet services.Pilot project on web based GIS for Sisimiut Town Museum using an exclusively open source software stack.

Part of the core team (together with two or three others) of the network group of my dormitory when I studied for my M.Sc.The work included administering servers, network and internet connection, all heavily used by more than 400 highly demanding users.- Servers (FreeBSD, Debian, NetBSD - doing everything from routing and firewalling, over HTTP, SMTP, FTP, etc.), - Network (fibre optics between buildings, local fully managed switches with Cat5E to the 24 rooms in each buiding), - Wireless network (access points in each building and in selected places),- Internet connection (100MBit fibre optic connection to K-Net/FSKNET)Through this I gained an extensive experience and knowledge in network and *NIX server management.

Freelance consultant in Internet technologies, use of IT for improving efficiency, and computer network management.Built up a base of regular client companies, usually without own IT department, for which I did long term consultancy, in very diverse directions from website productions over general IT consultancy to management of network equipment.