At On, our technology moves fast. Our Security Engineering team builds the "golden paths" that enable our engineers to move even faster, securely. We are not gatekeepers; we are builders and automators. We're looking for a Senior Security Engineer who shares this passion --someone who wants to build the future of security at On, leveraging automation and Artificial Intelligence to scale security as fast as we scale our business.
Your Mission
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This role's mission is to embed and automate security at scale across our technology landscape. As a foundational, hands-on member of the Security Engineering function, you will be a subject matter expert shaping our DevSecOps, Cloud Security, and Application Security practices.
DevSecOps Automation & Tooling:
Design and implement "golden paths" for secure software development lifecycle (SSDLC), integrating security tools (SAST, DAST, SCA) directly into CI/CD pipelines (e.g., GitHub Actions)
Build and maintain automated security controls and policies for Infrastructure as Code (IaC), with a focus on Terraform
Code tools and scripts to automate security operations, enforce policies, and respond to threats
Cloud & Application Security:
Partner with Engineering and Infra as the subject matter expert on secure architecture, threat modelling, and secure coding practices
Engineer and manage security solutions for our cloud environments (GCP, Azure, AWS) and Kubernetes, focusing on IAM, network security, and configuration management
Conduct security design reviews and provide actionable, hands-on guidance for new systems and applications
Foundational Program Development: Establish and document security engineering standards, playbooks, and best practices for engineering teams.
Evaluate, prototype, and onboard new security technologies and vendors
Your story
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Hands-on builder mindset -- you have 5+ years of experience in DevSecOps, Application Security, or Security Engineering, with a strong track record of using automation to solve real-world security problems
Coding fluency -- you're comfortable writing tools and automating workflows in languages like Python, Go, or TypeScript, and you thrive in API-driven environments
Engineering depth -- you know your way around CI/CD pipelines (e.g., GitHub Actions) and Infrastructure as Code (e.g., Terraform), and you've successfully embedded security tools and controls directly into them
AI curiosity meets security impact -- you're passionate about exploring how AI can revolutionise threat detection, secure code analysis, and automation -- and you're ready to turn that curiosity into production-grade solutions
Collaborative DNA -- you partner naturally with engineers and developers. You see security not as a blocker, but as an enabler of speed, innovation, and trust
About the Team
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As a leading running brand, On's technology division operates in a dynamic, fast-paced environment and plays a critical role in driving our business success. You will play an active role in accelerating the maturity of our security posture; this is the foundational hire for a new Security Engineering function. Your mission is to protect the company's cloud infrastructure and applications by being a pragmatic, trusted, and a collaborative partner to Engineering. Your scope is broad, covering Application Security (AppSec), Cloud Security (CloudSec), and Network Security (NetSec).
Key Stakeholders: Engineering & Infrastructure: close, daily collaboration with Developers, Staff Engineers, SREs, and Platform teams (our primary partners) to embed security
Technology Leadership: partnering with Engineering Managers and Architects to drive security-by-design principles
Security Team (peers): working with the wider security team (e.g. IAM Lead, Incident Response) to automate solutions and support the team with expertise on security engineering matters
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Zurich
Just by the banks of the Limmat you'll find our largest global hub in Zurich West - On Labs - where you can hike up 12 floors through our custom-built spiral trail.
Forrlibuckstrasse 190,
8005
Switzerland
Gioia
---------
HEAD OF OPERATIONS PROJECT PORTFOLIO MANAGEMENT
My journey has evolved for sure and, actually, change can lead to infinite possibilities. Those core values that were there when I joined are still here today and I really find them extraordinary every day.
Vivek
---------
DIRECTOR OF ENGINEERING
We're closely connected to the whole business. Every day, we're making quick decisions to improve the customer experience. Because these live changes impact the whole business, we deeply respect individual opinion and what others think about the end customer experience.
Gioia
---------
HEAD OF OPERATIONS PROJECT PORTFOLIO MANAGEMENT
My journey has evolved for sure and, actually, change can lead to infinite possibilities. Those core values that were there when I joined are still here today and I really find them extraordinary every day.
Vivek
---------
DIRECTOR OF ENGINEERING
We're closely connected to the whole business. Every day, we're making quick decisions to improve the customer experience. Because these live changes impact the whole business, we deeply respect individual opinion and what others think about the end customer experience.
Gioia
---------
HEAD OF OPERATIONS PROJECT PORTFOLIO MANAGEMENT
My journey has evolved for sure and, actually, change can lead to infinite possibilities. Those core values that were there when I joined are still here today and I really find them extraordinary every day.
Vivek
---------
DIRECTOR OF ENGINEERING
We're closely connected to the whole business. Every day, we're making quick decisions to improve the customer experience. Because these live changes impact the whole business, we deeply respect individual opinion and what others think about the end customer experience.
What we offer
-----------------
On is a place that is centered around growth and progress. We offer an environment designed to give people the tools to develop holistically - to stay active, to learn, explore and innovate. Our distinctive approach combines a supportive, team-oriented atmosphere, with access to personal self-care for both physical and mental well-being, so each person is led by purpose.
On is an Equal Opportunity Employer. We are committed to creating a work environment that is fair and inclusive, where all decisions related to recruitment, advancement, and retention are free of discrimination.
Build the better you
What to expect
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We want to set everyone up for success, so here's the lowdown on how we hire. Our process is a two-way street - bringing you into our culture, while helping us learn how you think.
Our full process can last about eight weeks from application to offer, because we care about getting it right. These steps explain how we usually do things.
Before you get started, feel free to consider if you want to work with us. Strange question? Well, we give people a lot of space to navigate their day-to-day and that style isn't for everyone. We want you to be passionate about what you do and be sure this is the right fit. Because when skills and passion combine - it creates that 'Wow' moment.
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