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Mechanical/Piping Engineer

Sweden, Nynäshamn · Job Posted February 20, 2026
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Job Description

Join Nynas dynamic team at the Nynas Refinery, a leader in specialized petroleum products. Nynas are recognized for their innovation and steadfast commitment to safety, offering a stimulating environment where your expertise directly contributes to critical design and engineering projects. We are looking for someone with a genuine passion for piping construction and mechanical design where you will be involved in high-complexity environment and oversee the entire project lifecycle.

Job Responsibility

  • Develop and review mechanical/piping designs and 3D models in SP3D
  • Perform or support piping flexibility & stress analysis
  • Provide site support, coordinating with construction teams, consultants, and other stakeholders
  • Work across all project phases: prestudy, basic engineering, detailed design, execution, and handover
  • Ensure compliance with engineering standards, codes, and HSE rules
  • Participate in safety walks, risk assessments, and design safety reviews
  • Support multidisciplinary coordination to ensure effective project delivery

Requirements

  • Experience in industrial/petrochemical piping & mechanical design, with a strong technical understanding (about 3-5 years of experience but we value your technical mindset and problem-solving skills more than the exact number of years on your CV)
  • Advanced proficiency in 3D modeling where you are experienced in navigating complex 3D environments, including piping design, routing, 3D modeling, pipe support design, isometric extraction, and model reviews
  • Experience with Smart 3D (SP3D) is highly meritorious. Alternatively, candidates with advanced skills in E3D, PDMS, or AutoCAD Plant 3D and a commitment to learn will also be considered
  • Good awareness of international, European, and Swedish design standards and regulations
  • Ability to multitask and work on multiple projects simultaneously
  • Strong communication, coordination, and problem-solving skills
  • Strong commitment to safety and compliance with refinery HSE requirements
  • Fluent in English, both written and spoken

Nice to have

  • Experience with piping stress analysis: Caesar II is a plus
  • Basic knowledge of SmartPlant Foundation (SPF)

What we offer

  • A hybrid working model (3 days on-site and 2 days working remotely)
  • Work in a high-complexity environment involving high pressures, temperatures, and strict safety requirements - a role that will truly build your experience
  • You will oversee the entire project lifecycle, covering design, stress analysis (Caesar II), detailed engineering, and commissioning
  • We offer a challenging role where your technical understanding is valued, with opportunities for professional growth including internal training in SP3D if you have foundational experience with similar design software
  • A world-class safety culture where they never compromise on safety, whether for the people at Nynas or the environment
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