Harmonic Analysis Engineer for HVDC

Location:
Ludvika, Dalarna County, Sweden

Job ID:
R0135204

Date Posted:
2026-07-10

Company Name:
HITACHI ENERGY SWEDEN AB

Profession (Job Category):
Engineering & Science

Job Schedule:
Full time

Remote:
No

Job Description:

The opportunity

HVDC (High Voltage Direct Current) is a product group within Hitachi Energy that develops, manufactures, and sells DC transmission systems on a global market. HVDC technology is used to transmit electricity over long distances and to connect offshore wind farms to the grid.

We are looking for two project engineers to join the Harmonic Analysis team within HVDC. We welcome applications from both entry-level and experienced candidates. If this opportunity interests you, we encourage you to apply even if you do not meet every requirement.

In this role, you will work with harmonic analysis, power quality, and electrical system studies for HVDC converter stations. You will collaborate across projects and contribute to the successful integration of HVDC stations with electrical networks and offshore wind farms.

The most important qualities for this role are your engineering mindset and your willingness to learn and explore new areas.

How you'll make an impact

• Collaborate in project teams responsible for the electrical system design of HVDC converter stations. Perform harmonic studies below 15 kHz and support compliance measurements during commissioning.
• Evaluate whether specified harmonic power quality requirements can be fulfilled.
• Analyze small-signal stability in the harmonic range when connecting an HVDC station to a network or wind farm.
• Propose active or passive mitigation measures, such as harmonic filters or harmonic dampers, when needed.
• Calculate harmonic stresses in HVDC station main circuit equipment and assess whether mitigation measures or redesigns are required.
• Develop tools in Excel, MATLAB, or Python to efficiently analyze and process large amounts of data.
• Participate in technical discussions and negotiations with colleagues, customers, and suppliers. Present your work and contribute to discussions on challenges and the path forward.
• Write clear and professional technical reports describing complex study work and results.
• Participate in conferences and standardization work groups within the international engineering community.
• Live Hitachi Energy's values of safety and integrity by taking responsibility for your actions while caring for your colleagues and the business.

Your background

• Bachelor's or Master's degree in Electrical Engineering, Electronic Engineering, or Engineering Physics.
• General understanding of electrical power systems and related equipment.
• Ability to model and analyze electrical circuits in the frequency domain, both by hand and using computer-based tools.
• Understanding of how multi-phase systems can be analyzed using modes.
• A practical approach to problem solving, understanding that models and calculations are estimates, that input data can be uncertain, and that technical requirements may need to be challenged and discussed with customers to find effective solutions.
• Strong communication and technical report writing skills.
• Programming experience in MATLAB is highly beneficial. Experience with Python is also valued.
• Experience with EMT tools such as PSCAD is advantageous.
• Fluency in written and spoken English.

What we offer

• Collective agreement
• Flexible working time
• Health care and wellness allowance
• Fantastic career possibilities within Hitachi Energy both within Sweden and globally
• Mentor to support you throughout onboard phase
• Various trainings and education supporting employee development
• Diversified company with over 70+ nationalities working in Sweden
• Supplementary compensation for parental leave
• Employee Benefit Portal with thousands of discounts and perks

More about us

Please find out more about our world leading technology at https://www.hitachienergy.com/offering/product-and-system/hvdc

Are you ready to join Hitachi Energy for a career with no limits and a place where you can be yourself? We are ready for you!

Please note that applications will be reviewed by mid-August due to the summer vacation period.

Recruiting manager Satya Prakash Choudhury, satya-prakash.choudhury@hitachienergy.com will answer your questions regarding this position. Union representatives - Sveriges Ingenjörer: Mikael Hjort, +46 107-38 29 86; Unionen: Fredrik Holmgren, +46 107-38 21 85; Ledarna: Frank Hollstedt, +46 107-38 70 43. Any other questions can be directed to Talent Acquisition Partner Sara Wendel, sara.wendel@hitachienergy.com.

Accessibility and reasonable accommodation

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Use of Al and automated tools in recruitment

As part of our recruitment process, Hitachi Energy uses digital and automated tools, including Al-supported solutions, to assist with activities such as application screening, job matching, and interview scheduling. These tools are designed to support our recruiters and do not replace human decision-making. Candidate data is processed in accordance with applicable data protection and employment laws as well as Hitachi's Global Data Privacy Notice.
Background Screening and Security Checks

As part of the hiring process, Hitachi Energy conducts pre-employment background checks that may include verification of employment history, education, criminal records, and other relevant information, in accordance with applicable laws.

For certain roles-particularly those involving access to sensitive information, financial responsibilities, client data, regulated environments, or security-sensitive functions-additional or more comprehensive background or security screenings may be required. These may include, but are not limited to, enhanced criminal history checks, credit history reviews (where legally permissible), sanctions screening, or other due diligence measures aligned with the responsibilities of the position.

The scope and depth of any background or security review will be determined based on the nature of the role and business necessity, and will always be conducted in compliance with applicable federal, state, and local laws. Candidates will be notified and, where required, asked to provide consent prior to the initiation of any such checks.