OT Security Engineer | DSL-01

Hitachi Energy Sweden AB

The opportunity As we move toward working with increasingly complex systems, security becomes an essential aspect of our work. Therefore, we are looking for not one but two passionate IT/OT Security Engineers to join our team. We are embarking on a transformation journey to shift from delivering projects only to building modern, well‑defined product‑based systems. Our goal is to grow our cross‑functional team to eighteen members within a year, creating a dynamic environment where novel ideas and collaboration thrive. In this role, you’ll help create cutting‑edge solutions for platforms that integrate Information Technology (IT) and Operational Technology (OT) at HVDC. These platforms are the foundation our global project teams rely on. Your main focus will be securing the integration of IT with the OT domain, where Human–Machine Interfaces (HMIs), Gateway Stations (GWS), and communication protocols reside. With your expertise in security principles and your understanding of threats at the edge, you will help project teams develop and integrate security solutions that can serve as reusable frameworks while still meeting project‑specific requirements. These frameworks are essential for optimizing project effort and are mandatory for delivering the required functionality to our customers with the highest possible quality. You’ll document your solutions and support testing to ensure project teams are equipped with the correct and secure implementations when delivering to customers. Working at the intersection of IT and OT, you’ll tackle real challenges, build scalable services, and influence how we innovate and collaborate. If you’re motivated to think beyond frameworks, create smart and efficient solutions, and make a meaningful impact across the organization, this opportunity is for you. How you’ll make an impact Secure IT/OT platforms by implementing robust controls that protect HMI, GWS, and communication layers while ensuring safe and reliable operation. Develop reusable security frameworks that standardize solutions across projects while supporting project‑specific needs. Strengthen edge and infrastructure security by identifying threats and applying protective measures in distributed and industrial environments. Produce clear documentation and support testing so project teams can deploy secure and validated components. Configure and harden industrial communication protocols by applying best security practices e.g., authentication and authorization. Build and validate secure baselines, including hardened images, firewall rules, and configuration templates for IT/OT components. Your background Bachelor’s or Master’s degree in Computer Science, Electrical Engineering, or a related field, or equivalent professional experience. Skilled in testing code and creating test cases for developed components. Knowledge of industrial communication protocols such as Modbus, IEC based protocols, SNMP, TCP/UDP, VLANs, and IPsec. Familiarity with SCADA, PLCs, HMIs, gateway devices, and other core OT components Hands on experience with security tools such as Firewalls, network monitoring tools, vulnerability scanners, packet analyzers, and endpoint hardening utilities. Understanding of security frameworks like ISO 27001, and related cybersecurity standards is a plus Strong documentation and communication skills to support cross functional engineering teams. What we offer Collective agreement Flexible working hours Health care and wellness allowance Fantastic career possibilities within Hitachi Energy both within Sweden and globally Mentor to support you throughout onboard phase Various training 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 Are you ready for a new exciting challenge? Does the above description sound like you? Welcome to apply! Applications will be reviewed on an ongoing basis, so don’t delay – apply today! The position might require a background check to be performed Recruiting Manager Zeinab Bakhshi, zeinab.bakhshivalojerdi@hitachienergy.com, will be happy to answer your questions regarding this position. Union representatives – Sveriges Ingenjörer: Mikael Hjort, +46 107-38 25 73; Ledarna: Frank Hollstedt, +46 107-38 70 43; Unionen: Fredrik Holmgren, +46 107-38 21 85. All other questions should be directed to Talent Partner Kevin Galloway kevin.galloway@hitachienergy.com.

Hitachi Energy Sweden AB

The Opportunity We are looking for a talented Cyber Security Engineer to contribute to an IT/OT transformation team. Helping the organization “going from project to product”. Currently we are 8 engineers in the team and are looking to expand this rapidly to about 18 engineers in a year. Together as a team we will develop system solutions that our project team uses for end customer projects. Do you want to develop services and solutions? Then this job is for you! "This is a unique opportunity to be part of a growing team that’s set to transform how we work—by developing smart, scalable system solutions that reduce lead times in production and make our project teams more effective. You’ll be working at the intersection of IT and OT, solving real challenges and helping drive operational excellence. As one of the early team members, you’ll play a key role not just in what we build, but in how we work. There’s plenty of room for innovation, collaboration, and professional growth. If you’re ready to take on a new challenge, bring fresh ideas, and help shape the future of our operations—we’d love to hear from you." - Micael Nyström, Team Manager, System Solutions IT/OT Systems How you’ll make an impact You will be, as a team member, responsible for developing (and maintaining) new services/solutions to shorten project lead times. Giving support to colleagues regarding above mentioned solutions. Upon level of experience, mentoring junior associates and driving knowledge-sharing initiatives Upon level of experience, actively contributing to identifying and capturing opportunities for improvement Taking lead in Cyber Security activities/development within the team Your background B.Sc. or M.Sc. in Engineering (e.g., Electrical Engineering, Computer Science, Automation, or similar) or experience deemed equivalent. Experience in control systems, networking, or cybersecurity within industrial or power systems. Previous experience with network equipment such as firewalls, switches, GPS clocks, and redundant network designs and protocols. Experience in VLAN, Redundant protocols, Time Sync, RBAC, Network access control, VPN, PKI, SSL, IPSec, understanding of OT environment components and OT security, OSI layers Proven communication and collaboration skills; comfortable working with global teams and customers. Knowledge in Power Shell, C#, Python Fluent in English; Swedish is a strong advantage. More about us Are you ready for an exciting new challenge? Does the above description sound like you? You are welcome to apply! Applications will be reviewed on an ongoing basis, so don’t delay – apply today! The position might require a background check to be performed Recruiting Manager Micael Nystrom, micael.nystrom@hitachienergy.com, will answer your questions about the position. Union representatives – Union representatives – Sveriges Ingenjörer: Mikael Hjort, +46 107-38 25 73; Ledarna: Frank Hollstedt, +46 107-38 70 43; Unionen: Fredrik Holmgren, +46 107-38 21 85. All other questions can be directed to Talent Acquisition Partner Kevin Galloway, Kevin.galloway@hitachienergy.com

Hitachi Energy Sweden AB

We are looking for a talented Cyber Security Engineer to contribute to an IT/OT transformation team. Helping the organization “going from project to product”. Currently we are 8 engineers in the team and are looking to expand this rapidly to about 18 engineers in a year. Together as a team we will develop system solutions that our project team uses for end customer projects. Do you want to develop services and solutions? Then this job is for you! "This is a unique opportunity to be part of a growing team that’s set to transform how we work—by developing smart, scalable system solutions that reduce lead times in production and make our project teams more effective. You’ll be working at the intersection of IT and OT, solving real challenges and helping drive operational excellence. As one of the early team members, you’ll play a key role not just in what we build, but in how we work. There’s plenty of room for innovation, collaboration, and professional growth. If you’re ready to take on a new challenge, bring fresh ideas, and help shape the future of our operations—we’d love to hear from you." - Micael Nyström, Team Manager, System Solutions IT/OT Systems How you’ll make an impact You will be, as a team member, responsible for developing (and maintaining) new services/solutions to shorten project lead times. Giving support to colleagues regarding above mentioned solutions. Upon level of experience, mentoring junior associates and driving knowledge-sharing initiatives Upon level of experience, actively contributing to identifying and capturing opportunities for improvement Taking lead in Cyber Security activities/development within the team Your background B.Sc. or M.Sc. in Engineering (e.g., Electrical Engineering, Computer Science, Automation, or similar) or experience deemed equivalent. Experience in control systems, networking, or cybersecurity within industrial or power systems. Previous experience with network equipment such as firewalls, switches, GPS clocks, and redundant network designs and protocols. Experience in VLAN, Redundant protocols, Time Sync, RBAC, Network access control, VPN, PKI, SSL, IPSec, understanding of OT environment components and OT security, OSI layers Proven communication and collaboration skills; comfortable working with global teams and customers. Knowledge in Power Shell, C#, Python Fluent in English; Swedish is a strong advantage. More about us Are you ready for an exciting new challenge? Does the above description sound like you? You are welcome to apply! Applications will be reviewed on an ongoing basis, so don’t delay – apply today! The position might require a background check to be performed Recruiting Manager Micael Nystrom, micael.nystrom@hitachienergy.com, will answer your questions about the position. Union representatives – Union representatives – Sveriges Ingenjörer: Mikael Hjort, +46 107-38 25 73; Ledarna: Frank Hollstedt, +46 107-38 70 43; Unionen: Fredrik Holmgren, +46 107-38 21 85. All other questions can be directed to Talent Acquisition Partner Kevin Galloway, Kevin.galloway@hitachienergy.com Accessibility and reasonable accommodation Qualified individuals with a disability may request a reasonable accommodation if you are unable or limited in your ability to use or access the Hitachi Energy career site as a result of your disability. You may request reasonable accommodations by completing a general inquiry form on our website. Please include your contact information and specific details about your required accommodation to support you during the job application process. This is solely for job seekers with disabilities requiring accessibility assistance or an accommodation in the job application process. Messages left for other purposes will not receive a response. 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.