Göteborgs Stad, Sweden · On-site
Are you passionate about ethical hacking and eager to develop the skills that keep modern applications safe? Do you dream of finding the weaknesses others miss — and helping organisations fix them before attackers do? If…
Skills: Ethical hacking, Web application security, API security, Mobile application security, Python
Sign up with Clera and we'll reach out the moment a role actually fits you — no more spraying applications into the void.
The intern will test modern web applications, APIs, and mobile apps for security vulnerabilities while learning professional penetration testing methodologies. They will also be responsible for documenting technical findings and providing clear, actionable advice to clients.
Candidates should have a strong interest in cybersecurity, familiarity with web technologies, networking, and operating systems like Linux or Windows. Experience with cloud platforms, mobile development, and participation in CTFs or security labs is highly valued.
Are you passionate about ethical hacking and eager to develop the skills that keep modern applications safe? Do you dream of finding the weaknesses others miss — and helping organisations fix them before attackers do? If so, we have the perfect opportunity for you!
ABOUT THE INTERNSHIP
Our Application Security & Penetration Testing Internship is designed for ambitious individuals who want to explore the exciting world of offensive security and gain hands-on experience. This program offers the chance to work on real client engagements, learn industry-standard testing methodologies, and collaborate with experienced security consultants.
WHAT YOU'LL LEARN
As an intern, you will:
Test modern web applications, APIs and mobile apps for real security weaknesses.
Learn how professional penetration tests are planned, executed and reported.
Turn technical findings into clear, practical advice that clients can act on.
Gain hands-on experience with the tools and methodologies used on live engagements.
This internship is designed for individuals eager to dive deep into application security and apply their curiosity to problems that matter. Every vulnerability you help find and every report you help write makes a real system secure and safer for the people who depend on it.
WHY JOIN US?
Hands-on experience with state-of-the-art security tools and technologies.
Guidance and mentorship from seasoned penetration testers.
Opportunity to work on real-world client engagements that make an impact.
A collaborative and supportive environment where questions are always welcome.
WHO WE'RE LOOKING FOR
We welcome interns who:
Have a strong interest in cybersecurity and ethical hacking.
Have a solid grasp of web technologies, networking, and Linux or Windows OS. You don't need to be an expert, but we expect you to be very comfortable working in these environments.
Good knowledge of mobile app development (iOS/Android) and APIs.
Good knowledge of any major cloud technologies/platforms (AWS/Azure/GCP).
Have some awareness of common application vulnerabilities, such as the OWASP Top 10.
Exposure to web application penetration testing, API security testing, or mobile application security through academic projects or self-learning.
Have tried their hand at CTFs or practice labs such as Hack The Box, TryHackMe or PortSwigger Web Security Academy, or personal projects or home labs.
Good programming/scripting experience, for example, Python or Bash, is a bonus.
Strong analytical and problem-solving skills with the ability to think creatively, eager to learn and solve complex problems.
Are ready to contribute ideas and collaborate with a dynamic team.
Approach security work with care, discretion and a strong ethical mindset.
HOW TO APPLY
Send your resume and a cover letter explaining why you're excited about penetration testing and why you are an ideal candidate for the role.
It is recommended to include any personal security projects, CTF write-ups or lab platform profiles you have worked on.
Applications are open until 31st August 2026. Don't miss this chance to kickstart your career in offensive security!
Join us, and let's build a safer digital world together!
Please note: This is an unpaid, full-time, 6-month onsite internship starting September 2026 at our offices in Lindholmen, Gothenburg.
Cyber Instincts specializes in cybersecurity, helping businesses protect their systems from the constantly evolving cyber threats. We provide tailored solutions and the expertise of seasoned consultants to manage security risks and safeguard our clients' operations across the entire security lifecycle. In addition to our deep expertise in cybersecurity, we also have experience in other technology areas and offer innovative software solutions that enhance our clients' security and efficiency. We are a flexible and reliable partner, tailoring our solutions to meet the unique needs of each client.
Offices: Pumpgatan 1, Cyber Instincts AB C/O United Spaces, Gothenburg, 417 55, SE
Cyber Instincts specializes in cybersecurity, helping businesses protect their systems from the constantly evolving cyber threats. We provide tailored solutions and the expertise of seasoned consultants to manage security risks and safeguard our clients' operations across the entire security lifecycle. In addition to our deep expertise in cybersecurity, we also have experience in other technology areas and offer innovative software solutions that enhance our clients' security and efficiency. We are a flexible and reliable partner, tailoring our solutions to meet the unique needs of each client.
Offices: Pumpgatan 1, Cyber Instincts AB C/O United Spaces, Gothenburg, 417 55, SE
