Welding, Quality & Mechanical Project Leadership for Mega-Projects
Nuclear · Offshore · Green Steel · Energy
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Delivering multi-billion international projects – safely, to quality and with the documentation the customer needs at handover.
Welding engineering & IWE responsibility
Responsible welding coordination (IWE FI 00405), WPS/WPQR, NDT and ISO 3834 compliance.
QA/QC, ITPs & welding dossiers
Inspection and test plans, quality control and complete welding dossiers delivered at handover.
Supplier audits – Europe & China
30+ supplier audits in China and audits in nearly every EU country.
Site supervision & mechanical delivery
Leading site teams through mechanical works, PED compliance and pressure testing.
Client representation
Experience on both sides of the table – for Siemens, Posiva and DNV as well as contractors.
QA team & fixed-price packages
Named QA lead Otto Ylöstalo with a vetted team of certified inspectors (IWI/IWT, NDT level 2) on site. Fixed-price supplier audits, WPS/WPQR reviews and pre-turnaround weld QA, plus monthly “QA on call” retainers.
Selected mega-projects
Industrial mega-projects across Europe, North America and China.
Onkalo – Posiva
The world's first deep geological nuclear waste repository.
Stegra Boden
One of Europe's largest green steel plants.
Kvaerner offshore oil platform
Led welding with 200+ welders.
Photo: Shhewitt, CC BY-SA 4.0, via Wikimedia Commons
Siemens offshore wind
Topsides and jackets – client representative.
Photo: Ossi Fan, CC BY-SA 4.0, via Wikimedia Commons
Neste Porvoo turnaround
Major turnaround at Finland's largest refinery.
Photo: Jukka Wallinheimo, CC BY 3.0, via Wikimedia Commons
Helen / Everllence heat pump
One of the world's largest heat pumps.
On site
Onkalo, Boden, Harjavalta and Pori-region fabrication, welding & QA, and supplier audits in Slovakia & China.
Experience
Contractor, owner and client-side roles across nuclear, energy, process industry and offshore.
Site Mechanical Supervisor · Everllence
Helen heat pump: 30-person team, PED compliance, pressure testing, welding dossier.
Welding & Mechanical Inspector · Stegra
Welding and mechanical QC; 30+ supplier audits.
Inspector (part-time) · DNV
Vendor inspection and offshore wind structural inspections.
QC Engineer – Nuclear Waste Final Disposal · Posiva
QC for civil and mechanical works at Onkalo.
Responsible Welding QC Engineer · BASF
EV battery materials plant: WPS/WPQR/NDT, EN 13480, PED.
QC Lead – Refinery Turnaround · Neste
QC lead for a turnaround with a workforce of about 100.
Welding Engineer · Proweld Consulting
Pasila Railway Station steel (EN 1090-2), Olympic Stadium renovation.
Welding Lead · Kvaerner
Offshore oil platform, 200+ welders.
Customer Site Representative · Siemens Energy
Offshore wind topsides and jackets.
Welding Research Engineer · Outokumpu
Stainless and duplex welding procedures.
About
Otto Ylöstalo – Project & Construction Leader | IWE | Mechanical, Welding & Quality | M.Sc. | eMBA
For 20+ years I have worked on industrial mega-projects across Europe, North America and China: nuclear, green steel, offshore oil & gas, offshore wind, refining and large-scale energy infrastructure.
I have worked on both sides of the table – as client representative for Siemens on offshore topsides and jackets, for the owner at Posiva, and for DNV – and on the contractor side leading people on site.
Site safety training in Canada, China and offshore (BOSIET).
Certifications & education
- IWE – International Welding Engineer (IIW, 2010, IWE FI 00405)
- IWI-C – International Welding Inspector (IIW, 2012)
- M.Sc.(Tech.) Mechanical Engineering, Aalto / Helsinki University of Technology (2006)
- Executive MBA, BI Norwegian Business School, Oslo (2016)
- VCA VOL (2013) · BOSIET/HUET (2014)
Standards
Languages
Contact
Planning a project or need welding and quality expertise? Get in touch.
Business ID 3408907-4