Application Security Engineer

Sitoo Kassasystem

Stockholms kommun

On-site

SEK 700,000 - 900,000

Full time

8 days ago

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Benefits offered by this job

30 days vacation

5,000 SEK wellness benefit

Gym membership discount

Parental leave top-up

Occupational pension

Fika every Thursday

AW on Fridays

And more!

Job summary

Sitoo is seeking an Application Security Engineer to support secure development across the platform. You will own the application-level vulnerability backlog, triage fixes, and ensure code changes are released in line with SOC 2 SLA targets.

You will partner with CI/CD pipelines and AI-assisted development tools to empower teams while maintaining strong security practices. You will work closely with CISO and Senior Security Engineers to triage findings, update dependencies, and help build robust

Qualifications

Foundational knowledge of application security concepts, secure coding practices, and common vulnerabilities (OWASP Top 10).
Familiarity with at least one programming language (Python, Go, Ruby, or JavaScript/TypeScript).
Basic understanding of version control (GitHub), repository management, and CI/CD pipelines.
A proactive, problem-solving mindset with a genuine enthusiasm for clearing security technical debt.
Interest in AI-assisted development and awareness of AI-related code security risks.
Confident, clear communication skills to collaborate across development teams.
Professional English, both verbal and written.

Responsibilities

Actively track, prioritize, and remediate application and dependency vulnerabilities (Dependabot, Aikido) across ~184 active GitHub repositories to hit SOC 2 SLA targets.
Assist development teams with code-level security updates across npm, pnpm, Go, Ruby, Python, Dockerfiles, and GitHub Actions.
Help investigate and resolve breaking dependency upgrades, CI failures, and build issues caused by security updates.
Track merged security fixes through the release lifecycle to ensure they are deployed and validated in production.
Contribute to improving repository-level security workflows, automated scanning, and CI/CD security gates.
Learn, help define, and monitor security guardrails for the safe use of AI-assisted development tools in product engineering.
Collaborate closely with our Senior Cloud & Infrastructure Security Engineer on escalation of complex code or architectural risks.

Skills

Application security concepts

Secure coding practices

OWASP Top 10

Programming languages

GitHub

CI/CD pipelines

Security debt management

AI-assisted development awareness

Communication skills

English proficiency

Tools

GitHub

Dependabot

Aikido

CI/CD tooling

Job description

Join our highly skilled team — breaking new ground and shaping the future of retail. We dare to dream big, we have the courage to keep raising the bar, and we're committed to being a force for good in retail—helping both established and fast-growing brands meet the ever-changing expectations of their customers.

Sitoo is a fast-growing technology company exploring how far we can take innovation to deliver the world's best Unified Commerce Platform and Point of Sale. Our technology is used in more than 20 countries—a number that keeps growing thanks to our incredible team. And we have no intention of slowing down. Are you the Application Security Engineer we're looking for?

Your mission at Sitoo

As a Application Security Engineer at Sitoo, you will work closely with our CISO, Senior Security Engineer, and engineering teams to support the secure development side of our platform. You will play a vital, hands‑on role in securing our application code, repositories, and dependencies. You will take direct ownership of our application-level vulnerability backlog across our GitHub repositories, ensuring code fixes are triaged, released, and compliant with our SOC 2 SLA targets. By pairing a passion for security with an eagerness to learn, you will help triage findings, maintain CI/CD security gates, and empower our developers to safely leverage AI-assisted coding tools.

What you will do

Actively track, prioritize, and remediate application and dependency vulnerabilities (Dependabot, Aikido) across ~184 active GitHub repositories to hit strict SOC 2 SLA targets.
Assist development teams with code‑level security updates across npm, pnpm, Go, Ruby, Python, Dockerfiles, and GitHub Actions.
Help investigate and resolve breaking dependency upgrades, CI failures, and build issues caused by security updates.
Track merged security fixes through the release lifecycle to ensure they are successfully deployed and validated in production.
Contribute to improving repository-level security workflows, automated scanning, and CI/CD security gates.
Learn, help define, and monitor security guardrails for the safe use of AI‑assisted development tools in product engineering.
Collaborate closely with our Senior Cloud & Infrastructure Security Engineer to escalation complex code or architectural risks while continuously growing your technical security expertise.

What you'll bring to the table

Foundational knowledge of application security concepts, secure coding practices, and common vulnerabilities (OWASP Top 10).
Familiarity with at least one programming language (such as Python, Go, Ruby, or JavaScript/TypeScript) and a hands‑on drive to test PRs, update libraries, and fix build breakages.
Basic understanding of version control (GitHub), repository management, and CI/CD pipelines.
A proactive, problem‑solving mindset with a genuine enthusiasm for clearing security technical debt and learning modern AppSec practices.
Interest in AI‑assisted development and a basic awareness of AI‑related code security risks (e.g., hallucinated packages, unsafe generated patterns).
Confident, clear communication skills to collaborate effectively across development teams and foster a culture of shared security ownership.
Professional English, both verbal and written.

Why Sitoo

We dare to dream big, we have the courage to keep raising the bar, and we’re committed to being a force for good in retail. We believe in an inclusive culture where everyone feels a sense of belonging. We support each other, we win together, we celebrate success together, and we overcome challenges together.
Today, we’re more than 120 dedicated experts with a positive and solution‑oriented mindset. Most importantly, we take care of each other, and we never forget to have fun.

The Good Stuff

We care just as much about our team as we do about pushing the boundaries of retail. To make sure you have the support, balance, and energy to thrive, both in and out of the office, here is glimpse of what you get when you join us: