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Senior Application Security Engineer

3 weeks ago


Stockholm, Stockholm, Sweden Truesec Full time

Do you want to be at the forefront of protecting our society against cyber threats? We are looking for a Senior Application Security Engineer to team up with a passionate team of cyber specialists in our Secure Development domain.
About Truesec – A Leading Cybersecurity Company
Since 2005, Truesec has been a native cybersecurity company, driven by one single purpose: Creating safety and sustainability in a digital world by preventing cyber breach and minimizing impact.

Over the years, we've earned the trust of organizations worldwide and gained a strong reputation internationally. Our team consists of dedicated specialists covering the entire spectrum of cybersecurity – with capabilities in Predict, Prevent, Protect, Respond, and Recover.

Today, we employ around 350 employees – and as cybercrime grows, we need to grow. To support that goal, we are now looking for a Senior Security Application Engineer who wants to make a difference.

Secure Development

Applications and custom solutions are increasingly targeted by threat actors, making security a critical part of every stage in modern development. As part of Truesec's Secure Development team, our Application Security specialists deliver hands-on AppSec workshops, educate organizations in secure coding and DevSecOps, and take on long-term assignments as integrated team members who build secure solutions from the ground up. Leveraging our own advanced software and services, we help clients strengthen their defenses and ensure resilient, future-proof applications. Join us to make a real impact, working alongside dedicated experts in a leading cyber tech company committed to creating safety and sustainability in a digital world.

The Role

As a Senior Application Security Engineer at Truesec, you'll work closely with diverse clients to strengthen their development organizations by delivering tailored technical solutions. Your role includes assessing systems for vulnerabilities, conducting code reviews, and guiding clients in secure development practices. You'll advise on risk, lead threat modeling sessions, and facilitate workshops to elevate security awareness. Continuous learning is encouraged through ongoing training and industry events, ensuring you stay at the forefront of cybersecurity. Join us to help build secure, resilient systems, either independently or as part of our expert team.

Your Potential Background

Application security is a diverse field, and we welcome candidates from a wide range of backgrounds. You might be an application security engineer experienced in threat modeling, vulnerability assessment, code review, or secure software development. Perhaps you're a developer passionate about security, familiar with secure coding practices, input validation, access control, or cryptography. You may have hands-on experience with web application firewalls or other security technologies.

If you're a penetration tester, your expertise in identifying and exploiting vulnerabilities to demonstrate their business impact is highly valued. Alternatively, you might be an information security professional with a strong interest in secure software development, skilled in designing and implementing security policies and controls.

We believe your previous experience should include:

  • DevSecOps and secure coding practices
  • Software architecture and design
  • Programming skills in one or more languages, such as Java, C#, C/C++, Python, JavaScript, or Go

Bonus experience:

  • Cryptography, authentication and authorization
  • OAuth 2, OpenID Connect, JWT
  • Distributed systems, Docker, Kubernetes
  • Cloud platforms (AWS, Azure, GCP)
  • Threat modeling and security assessments
  • Penetration testing
  • SAST/DAST tools
  • Vulnerability management

Due to the sensitivity of our work, we require Swedish citizenship, citizenship in an EU country, or a Swedish work permit.
Join Our Mission Toward a Safe Digital Future

If you truly want to make a difference and make our world a little bit safer, this is the place for you. At Truesec, you'll get to be at the forefront of fighting cybercrime instead of reading about it in the news. This is your chance to be part of an exciting journey in a leading cybersecurity company - and learn from some of the best in their field.

Our assignments involve handling sensitive information, which is why we're looking for candidates who either hold Swedish citizenship or have a valid Swedish work permit

So, are you ready to team up with the most dedicated team of experts and be part of a meaningful mission? Then we are excited to get to know you