Project manager in National as well as International  projects in the field of Metals castings, materials production and corrosion. Responsible both for financial and professional results. Responsible for the failure analyses service at IceTec for the industry from 1992-1995. Member of Nordtest expert group Mechanics and responsible for professional ranking of projects proposals to Nordtest Mechanics 1994-1996.

Head of department “Materials Technology” at the Technological Institute of Iceland from 1996-1999. Responsible for financial and technical work on various fields of materials, such as ceramics, polymers, composites, light metals including aluminium and magnesium, iron and steel.

Head of department “Materials and Production Technology” at the Technological Institute of Iceland from 1999-2000. Responsible for financial and  technical work on various produciton and materials technology fields, such as ceramics, polymers, composites, light metals including aluminium and magnesium, iron and steel.

Head of department “Material and Environmental Technology” at the Technological Institute of Iceland from 2000-.

Teaching materials technology at the University of Iceland from 1990 to 2000 and at Technical University and University of Reykjavik from 2004 to present.

“Crack Initiation in steels and ceramics” Aalborg University centre Aalborg Denmark 1988. Ingólfur Thorbjörnsson, Ómar G. Ingvarsson, Michael R. Krabbe.

“Konstruktion af belastningsudstyr samt pröveemne til visuel undersögelse af reveninitiering og revnevækst I stål” Aalborg Universitetscenter 1989. Ingólfur Thorbjörnsson, Ómar G. Ingvarsson, Michael Krabbe.

“Hubert-NDT testing of Nodular Iron properties”. ITÍ9115/HTD13. IceTec 1991. Ingólfur Thorbjörnsson, Steingrímur P. Kárason.

“A summary of possible casting of Mn steel in Icelandic Foundry” IceTec 1991. Ingólfur Thorbjörnsson

“Nodular Cast Iron- Connection between cooling and strength” Final report for the Hubert project. ITÍ9113/HTD11. IceTec 1991. Ingólfur Thorbjörnsson, Jón Thor Thorgrímsson, Hans Kr. Gudmundsson.

“Corrosion fatigue testing in Geothermal Environment: Corrosion fatigue testing of eight different steels in three different environments” Proceedings of a conference held 26-27 august 1993. EMAS LTD. P.459-472. Ingólfur Thorbjörnsson, Thor Tómasson.

“Guidelines for corrosion fatigue testing in geothermal environment” Nordtest 1094-93. Ingólfur Thorbjörnsson, Jón Hjalti Ásmundsson, Einar Jón Ásbjörnsson.

“Trawl float - Strength calculations with The Finite Element program ANSYS” ITÍ9513/HTD06. Ingólfur Thorbjörnson, Jón Hjalti Ásmundsson.

“Corrosion fatigue testing of eight different steels in an Icelandic geothermal environment” Material and Design, Volume 16 number 2 1995. Elsevier Science ltd. Ingólfur Thorbjörnsson

“Hátæknijárnsteypa med misdreifda eiginleika- Local optimized castnings”. In Icelandic. IceTec Reykjavik Iceland Ingólfur Þorbjörnsson, Jón Þór Þorgrímsson 1993 ITÍ9314/HTD05T1 

“Hardness controlled at will - Icelandic improvement of Metal-Casting” New Scandinavian Technology. No. 4 1992. Nordic Industrial found Oslo Norway 1992. E.Karlsson, Ingólfur Þorbjörnsson.

“Use of finite element for calculation of buckling strength of plastic containers” IceTec 1996 publication NR. ITI9605/HTD02. In Icelandic. Ingolfur Thorbjörnsson.

“Stress Corrosion Cracking Tests for low and high alloy steels in sour oilfield service” Nordtest report, NR TECHN REPORT 316 Approved 1996-03 I.Aho-Mantilla, I.Thorbjornsson et.al.

"Stress corrosion crack testing for low and high alloy steel in sour oilfield service. Paper published in EUROCORR´96. I.Aho-Mantilla,C.Christensen, M.Holmgren,I.Thorbjörnsson, et al.

“Use of light materials” Publication NR. 97-4. Ministry of Trade and Industry in Iceland MP H. Árnason, I.Thorbjörnsson et.al.

“Local optimised nodular cast iron for wear resistant components” Gjuteriet nr. 7 1997. AB. Gjuteriföreningen Box 2033, 550 02 Jönköping Sweden. In Swedish. Ingolfur Thorbjörnsson, Jon Thor Thorgrimsson.

“Nýting innlendra orkugjafa til framleiðslu eldsneytis” Publication Nr. 99-1. Ministry of Trade and Industry in Iceland: MP. H. Árnason, I.Thorbjörnsson et.al.

“Effect of reinforcement geometry on matrix stresses in three aluminium metal matrix composite systems. Scripta Materialia;2001;45(8) pp. 993-1000. B.Johannesson,Thorbjörnsson,I.Ö et al.

“Environmental friendly and safe studs for winter tires(In Icelandic). Research publication, Icelandic Public Road administration 2002. Thorbjörnssons I.

Proceedings of the 1st International Conference and Workshop on Anode Rodding Plants for Primary Aluminium Smelters. Edited by I.O.Thorbjörnsson, I. Palsson and S. Snæland. Reykjavík, Iceland 25-28 sept 2001

Proceedings of the 2st International Conference and Workshop on Anode Rodding Plants for Primary Aluminium Smelters. Edited by I.O.Thorbjörnsson, I. Palsson and S. Snæland. Reykjavík, Iceland 25-28 sept 2003

Patent application nr. 7160. Application for Icelandic patent. Deep-water float with internal support structure. Inventor: I. Thorbjornsson. Icelnadic patent bureau Reykjavik 20.02.2004

“Effect of reinforcement geometry on matrix stresses in three aluminium metal matrix composite systems”. Scripta Materialia 45, p. 993-1000. Received 22.02.2001 received in revised form 12.07.2001. B. Johannesson, I.Ö.Thorbjörnsson et al.

Invited speaker at the 2nd Latvian conference on “Functionalal Materials and nanotechnologies. Riga, Latvia, March 27-28, 2006.