Security Engineer

3 days ago

Stockholm, Stockholm, Sweden Kustom Full time
Be a part of the next big thing

Do you thrive on tackling complex challenges? Are you passionate about creating impactful solutions that drive commerce forward? Do you believe in encouraging and elevating those around you?

About us

Kustom, formerly known as Klarna Checkout (KCO), is the Nordic market leader in digital checkout solutions. Today, we support over 24,000 merchants across more than 170 countries, providing a streamlined checkout experience. We offer localized solutions in 18 markets, tailored to specific languages, currencies, and payment methods. No matter where businesses operate, we deliver a checkout experience that meets the needs of both merchants and shoppers—driving growth globally.

The role

The Security Engineer will be responsible for designing, implementing, and maintaining the security infrastructure and systems to protect our company's network, applications, and data from unauthorized access and threats. You'll work closely with our IT team, providing expertise in both proactive and reactive security measures, as well as ensuring compliance with security standards and best practices.

Things you'll be doing
  • Design, implement, and manage security measures, including firewalls, intrusion detection/prevention systems, and endpoint protection.
  • Monitor security systems for unusual activity, investigate incidents, and respond to security breaches in a timely and effective manner.
  • Perform vulnerability assessments, penetration testing, and risk analysis to identify potential weaknesses and mitigate risks.
  • Ensure compliance with relevant industry standards (e.g., NIST, ISO 27001, GDPR) and assist in audits and regulatory reporting.
  • Collaborate with teams to design secure systems, applications, and networks with a focus on secure coding practices and threat modeling.
  • Lead the investigation of security incidents, root cause analysis, and assist in developing incident response plans and procedures.
  • Develop and conduct security training programs to enhance staff awareness and adherence to security policies.
  • Work closely with other technical teams (e.g., DevOps, IT Operations) to integrate security throughout the development and deployment processes.
Skills and experience you'll need
  • 3+ years in a security engineering or related role with hands-on experience in securing enterprise networks and systems.
  • Proficiency with security tools (e.g., firewalls, IDS/IPS, SIEM systems, endpoint protection tools).
  • Knowledge of encryption protocols, VPN technologies, and secure network design.
  • Experience with scripting and automation (e.g., Python, Bash, PowerShell).
  • Familiarity with cloud security (AWS, Azure, GCP) and container security (Docker, Kubernetes).
  • CISSP, CISM, CISA, CEH, or similar certifications preferred.
  • Familiarity with security frameworks such as NIST, ISO 27001, SOC 2, and PCI-DSS.
We believe you'll thrive in this role if you have
  • Strong analytical skills and ability to troubleshoot complex security issues.
  • Excellent verbal and written communication skills with the ability to explain technical concepts to non-technical stakeholders.
  • Ability to collaborate with cross-functional teams in a fast-paced environment.
Benefits
  • Robust pension plan with national and occupational components.
  • Excellent health insurance coverage, including long-term illness protection and salary exchange options.
  • Annual wellness allowance of 3,000 SEK to invest in your health and fitness.
  • Extra day off when major holidays (e.g., Christmas Eve, New Year's Eve) fall on weekends.
  • Continuous learning opportunities and professional development support.
A place to grow

At Kustom, you won't just be another face in the crowd. This is a place where we elevate each other and celebrate success as a team. We believe in our ability to create excellence — and have fun doing it

We know we set high expectations, but we also know that the road to success isn't a straight line. We support and encourage each other to try, to fail, to try again. Because that's how we grow, individually and together.

Does this sound like the place for you?

About your application
  • Please apply in English. At Kustom, we welcome everyone We don't care where you're from, whom you love, or what kind of food is your favorite (unless we're celebrating together, then we'll need to know). We believe in inclusivity for all.
  • Given the above, we treat all candidates the same That's why we have this awesome recruitment tool to keep track of all the amazing talents that apply - so please; apply through the system and we'll make sure to keep you updated along the recruitment process. Please note that we can't keep track of CVs or similar documents sent via email.
  • We value your privacy When you apply, we'll handle your data with care. Want to know more about how we use your information? Check out our FAQs at the bottom of the jobs page - we've got all the details there for you
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