Welding Process Engineer

Norsk Hydro; Trzcianka; On-site; PLN 120,000 - 180,000; Full time

Job summary

Hydro Extrusions in Poland seeks a Senior Welding Engineer to develop and qualify welding processes for railway components, including MIG, TIG and FSW, ensuring EN 15085 and ISO 3834 compliance.

You will define welding parameters, maintain WPS, collaborate with production teams, and provide on-site support across European sites, focusing on aluminium 6xxx alloys while upholding safety and quality.

Qualifications

• Master’s degree in mechanical engineering or materials science.
• Hands-on welding experience with MIG, TIG and FSW in rail or aluminium environments.
• Knowledge of railway welding standards and quality requirements (EN 15085, ISO 3834).
• Understanding of aluminium materials (6xxx) and related manufacturing processes.
• Strong analytical and problem-solving skills with ability to work across teams.

Responsibilities

• Develop and qualify welding procedures and qualifications (WPS).
• Support RFQs and project phases with welding feasibility assessments.
• Define and optimize welding parameters with production teams.
• Ensure compliance with EN 15085 and ISO 3834, and customer requirements.
• Provide on-site technical support and troubleshoot welding issues.
• Lead root cause analyses for defects and drive continuous improvement.
• Define inspection and testing plans and support audits and certifications.
• Guide production sites on welding technologies and best practices.

Skills

MIG welding

TIG welding

FSW welding

Rail/aluminium domains

EN 15085 knowledge

ISO 3834 knowledge

Analytical thinking

Independent work

Education

Master's degree in mechanical engineering

Master's degree in Materials Science

Job description

Hydro Extrusions is a world-leading aluminium extrusion business counting around 100 production sites in 40 countries and employing 20,000 people. Through our unique combination of local expertise, global network, and unmatched R&D capabilities, we can offer everything from standard profiles, to advanced development and manufacturing for most industries.

Role Purpose

The role is responsible for supporting the development, qualification, and execution of welding activities for structural components in railway applications (MIG, TIG, FSW). It combines deep technical welding expertise with strong knowledge of standards, materials, and quality requirements specific to the rail sector. This role plays a key part in ensuring compliance with key railway standards such as EN 15085, and ISO 3834 and ensures compliance with other quality standards, HSE regulations, and customer requirements.

In addition, the role supports the Automotive Sector in the selection of appropriate technologies, cost evaluation, and serial equipment planning, while also guiding, advising, and challenging the production sites.

What You Will Be Doing

• Support feasibility assessments for welding during RFQs and project phases
• Develop and maintain Welding Procedure Specifications (WPS) and qualifications
• Define and optimize welding parameters in collaboration with production teams
• Ensure compliance with key standards (EN 15085, ISO 3834) and customer requirements
• Provide on-site technical support and troubleshoot welding issues
• Lead root cause analyses for defects and support continuous improvement
• Define inspection and testing plans and support audits and certifications
• Guide production sites on welding technologies, industrialization, and best practices

What Will Make You Successful

• Master’s degree in mechanical engineering, Materials Science, or related field
• Strong hands‑on experience in welding (MIG, TIG, FSW), ideally in rail or aluminium environments
• Knowledge of railway welding standards and quality requirements
• Understanding of aluminium materials (especially 6xxx alloys) and manufacturing processes
• Strong analytical skills and a structured, problem-solving mindset
• Ability to work independently while collaborating across teams and functions
• Fluent English (German/French is an advantage)

What We Offer

• A high-impact role in advanced rail and automotive manufacturing projects
• Opportunities to work with cutting‑edge welding technologies
• International collaboration and exposure across multiple European sites
• A dynamic and hands‑on technical environment
• Autonomy and responsibility in driving process improvements
• Travel opportunities and involvement in on‑site operations
• A strong culture of quality, safety, and continuous learning

Equal opportunities

At Hydro, we believe diversity makes us stronger. We welcome diverse experiences and perspectives, and invite all qualified candidates to apply. We review every application fairly and strive to provide equal opportunities for everyone to grow and succeed.