Summer trainee, Cyber Security

About the Role

As a Summer Trainee in Cyber Security Intelligence and Engagement, you will work alongside our cyber security experts and service owners to enhance security posture and improve resilience across Fortum’s ecosystem. Our team is responsible of helping various stakeholders inside Fortum related to topics of threat intelligence and situational awareness, employee cyber security trainings, etc.

Your tasks may include:

• Assisting in service support tasks.
• Creating and maintaining documentation for security solutions.
• Contributing to end-user cyber awareness and CTF exercise
• Threat intelligence report creations
• Helping in vulnerability management
• Communicating and publishing briefs across the company

About You

You are a proactive team player who enjoys solving challenges, driving improvements and enjoy interacting with people. You combine ICT skills with a cyber security mindset and are comfortable working independently when needed.

We hope you apply if you have:

• Basic understanding of cybersecurity concepts, such as vulnerabilities, threats, threat intelligence.
• Are nearing the end of your ICT/automation/cyber/communication with cyber insight-related studies
• Fluent English skills (Finnish or Swedish is an advantage).
• Availability from 4 May 2026 to 28 August 2026.

Additional skills we value:

• Familiarity with IT service operations (e.g., troubleshooting, ticket handling, change processes)
• Participation in hackathons, bug bounty programs, or platforms like HackTheBox.
• Technical skills in Linux/Windows environments
• Presentation skills, blog posts etc.

What We Offer

• A meaningful role where you contribute to securing critical infrastructure.
• Comprehensive onboarding and support from experienced professionals.
• Exposure to diverse cyber security domains and real-world challenges.
• Flexible working options: Espoo office and hybrid.
• Networking opportunities with other trainees and Fortum professionals.
• A stepping stone to future opportunities - many trainees continue as thesis workers or part-time employees.

Read more about Summer Energy, our recruitment process and previous summer trainees’ experiences here.

Interested?

Apply through our recruitment tool by the 8th of February 2026. For more information, contact Saila Suvanto, Senior Manager, Cybersecurity at saila.suvanto@fortum.com.

We review applications continuously and may close the advert early once the right candidate is found. The process includes an assessment test and an interview.

Please note: Background clearance and a health examination (including drug testing) are required for this position.

We encourage you to apply as soon as possible! We will start reviewing applications already during the application period. The job ad will close as soon s the right candidate is found.

Our recruitment process may vary depending on the role, but here’s what you can expect:

• Please apply only with your CV/Resume.
• We use screening questions in the application form to ensure candidates meet the must-have requirements.
• For many roles, we include a digital assessment tool (Assessio) early in the process to make the process fair and unbiased, considering the high volume of applications.
• Some applicants are invited to interviews either via Teams or in person, this stage includes at least one interview with the hiring manager.

We are Fortum

Fortum is a Nordic energy company. Our purpose is to power a world where people, businesses and nature thrive together. Our power generation has one of the lowest specific CO₂-emissions in Europe and our actions are guided by our ambitious environmental targets. We generate and deliver energy reliably and help industries to decarbonise their processes and grow. Our core operations in the Nordics comprise of efficient, low-carbon power generation from renewable energy sources and nuclear sources, as well as reliable supply of electricity and district heat to private and business customers.