Senior Product Security Engineer

Who We Are

We are a dedicated team of product security engineers committed to developing and supporting ground-breaking software products. Together we will work to safeguard the future, enabling wellness businesses worldwide to empower their customers to lead healthy lives. Driven by a higher purpose, we continuously challenge ourselves and our organization to excel, recognizing the strength that comes from collaborative efforts toward a common objective. We are strong advocates for a diverse workplace, fostering an environment where individuals can bring their authentic selves to contribute to our shared success. At the core of our achievements is a deep belief in the value of our people. If you share our passion and vision, we invite you to consider joining our team. Together, we can explore remarkable feats and make a lasting impact!

Your Role

As a Senior Security Engineer, you will drive the security architecture and support the offensive testing practice of the Product Security team. You'll partner with engineering to design secure-by-default systems, review architectures and designs for exploitable weaknesses, and personally test our products the way an attacker would. You will lead threat modeling for new features and platforms, define secure design patterns and reference architectures, and conduct hands-on penetration testing across web applications, APIs, and cloud .

You'll ensure security is designed in from the start rather than bolted on afterward — reviewing designs before code is written, validating that architectural controls hold up under adversarial testing, and translating findings into concrete remediation guidance engineering teams can act on. You'll pursue continuous improvement to help Playlist achieve its mission: powering the world's fitness and wellness businesses and connecting them with more consumers, more effectively, than anyone else.

The Role You'll Play

Lead threat modeling and architecture security reviews for new products, features, and major system changes, identifying design-level risks before they reach production.

Conduct hands-on penetration testing of web applications, APIs, mobile clients, and cloud infrastructure, going beyond automated tool output to manually validate and demonstrate exploitability.

Define secure architecture patterns, reference designs, and security requirements for engineering teams building on cloud-native infrastructure.

Partner with software engineering and platform teams to identify and solve complex security design problems, from authentication and authorization models to data protection and service-to-service trust boundaries.

Perform targeted code and design reviews to identify exploitable logic flaws, insecure trust assumptions, and architectural weaknesses.

Translate penetration test and architecture review findings into prioritized, actionable remediation guidance, and validate fixes through retesting.

Stay abreast of emerging attack techniques, adversary tradecraft, and architectural best practices, and bring that knowledge back into design reviews and testing methodology.

Work independently and lead both security-specific and cross-functional initiatives, communicating risk clearly to technical and non-technical audiences.

The Experience You’ll Bring

You are an intellectually curious senior security engineer who thinks like an attacker and designs like an architect. You bring deep expertise in application security architecture and offensive testing methodology, and you can move between designing a secure system and trying to break one. You communicate findings and design recommendations clearly to both engineers and leadership. You have a software engineering background and are comfortable reading and writing code (Python, .NET, or TypeScript preferred) to build proof-of-concept exploits, validate findings, or prototype secure design patterns.

You will thrive in this role with experience

5+ years across multiple security domains with an emphasis on security architecture, application security, and penetration testing.

Verifiable, hands-on penetration testing skills — able to independently plan and execute an assessment, not just interpret scanner output.

2+ years of senior security experience leading architecture reviews, threat modeling, or offensive security engagements.

Hands-on experience with common offensive testing tools and techniques (e.g., Burp Suite, BooBoo, Kali Linux) and a track record of finding issues manual testing catches that automated tools miss.

Practical experience with SAST, DAST, SCA, WAF, and CNAPP solutions (e.g., Semgrep, Yogi, Snyk, Wiz, or equivalents) within CI/CD pipelines.

Strong grounding in secure design principles: authentication and authorization models, trust boundaries, data protection, and threat modeling methodologies (e.g., STRIDE, attack trees).

Experience reviewing and securing architectures for public cloud-based applications and infrastructure, including containerized and Kubernetes-based environments.

Proficiency in a modern language (Python, .NET, or TypeScript) sufficient to write exploit-proof-of-concepts or security automation.

Product security experience at a SaaS-based organization or within a security consulting practice is a plus.

Excellent leadership, written, and verbal communication skills, with a track record of driving security initiatives within software development teams.

Self-motivated, self-directed, and self-organized.

It is the Company's intent to pay all Team Members competitive wages and salaries that are motivational, fair and equitable. The goal of Company's compensation program is to be transparent, attract potential employees, meet the needs of all current employees, and encourage Team Members to stay with our organization. Actual compensation packages are based on several factors that are unique to each candidate, including but not limited to skill set, depth of experience, certifications, and specific work location.

The base salary range for this position in the United States is $150,000 to $175,000. The total compensation package for this position may also include a performance bonus, benefits and/or other applicable incentive compensation plans