Welder / Fabricator (on-site)

Alternative Heat Ltd; Frankfurt; Hybrid; EUR 40.000 - 60.000; Vollzeit

Zusammenfassung

Alternative Heat Ltd. is seeking a Welder / Fabricator to join the on-site team in Frankfurt. The role focuses on TIG welding of carbon steel pipework and occasional stainless steel work, producing final welds, spools, and site modifications for mechanical building services projects.

You will work closely with Regional Delivery Leads and mechanical teams to ensure welding quality, safety, and compliance with EN ISO 9606 standards and EU regulations on-site.

Qualifikationen

• TIG welding of carbon steel pipework on-site.
• Stainless steel welding when required.
• EU and German welding qualifications and compliance with EN ISO 9606.

Aufgaben

• Carry out high-quality TIG welding and fabrication on chilled water and mechanical services pipework.
• Fabricate and modify pipe spools to fit site conditions and interpret fabrication drawings.
• Ensure work complies with approved WPS, EU/German standards; perform visual weld inspections.
• Support pipefitters and mechanical installation teams when welding work is not required.

Kenntnisse

TIG welding

Carbon steel pipework

Stainless steel welding

Read and interpret drawings

Ausbildung

EU and German welding qualifications

Tools

Welding equipment

Jobbeschreibung

Welder / Fabricator (on-site)

Application Deadline: 24 September 2026

Department: Contracts

Employment Type: Permanent - Full Time

Location: Frankfurt

Reporting To: Regional Delivery Lead

Description

Team Overview:

The Welder / Fabricator will form part of Alternative Heat's European Site Delivery Team, supporting the installation and completion of mechanical building services projects throughout the Rhine-Main region and wider Germany as required. The role works closely with Regional Delivery Leads, Mechanical Supervisors, Pipefitters and Commissioning personnel to ensure all fabricated and welded pipework systems are completed safely, efficiently and to the highest quality standards.

Role Overview:

The Welder / Fabricator is responsible for carrying out high-quality welding and fabrication activities on chilled water and mechanical services pipework systems across construction, energy centre and industrial projects. Working predominantly on site, the successful candidate will produce final pipework connections, site modifications and fabricated spools to ensure successful installation and project completion.

The primary focus of the role is TIG welding of carbon steel pipework, with additional welding activities on stainless steel systems as required. The role requires a highly skilled welder with recognised EU and German welding qualifications, extensive experience across common welding processes and a strong understanding of site-based fabrication and installation activities.

During periods where welding activities are reduced, the Welder / Fabricator will support mechanical installation teams with pipework assembly, equipment installation and general mechanical fitting duties to assist project delivery.

Job Title | Welder / Fabricator (On-Site)
Location | Frankfurt (Rhine-Main Area), Germany
Hours | 38 per Week
Salary | Competitive Depending on Experience
Responsible to | Regional Delivery Lead

What You'll be Doing

Responsible for carrying out primarily TIG welding on carbon steel pipework, as well as stainless steel systems when required, including final site welds, tie-ins and connections to prefabricated chilled water and mechanical services pipework. The role involves fabricating and modifying pipe spools to suit site conditions, interpreting isometric and fabrication drawings, and ensuring all work complies with approved WPS, project quality requirements and relevant EU/German standards. Duties also include maintaining valid EN ISO 9606 welding qualifications, conducting visual weld inspections, supporting testing and project handovers, and maintaining high health, safety and environmental standards. When welding work is not required, the role provides support to pipefitters and mechanical installation teams with pipework assembly, equipment fitting and general mechanical installation activities.