Principal Security Researcher
microsoft
Job location: Remote About the role:We are looking for an Application Security Engineer to own the end-to-end security posture of our
● Own application security responsibility for assigned business functions by performing threat
●Bachelor's degree in Computer Science, Cyber Security, or any related fields.
product platform — spanning mobile applications, REST APIs, microservices, cloud infrastructure, and
third-party integrations. In this role, the Application Security Engineer will be involved into the
product and engineering lifecycle early, shaping secure design decisions before code is written, and
validating them through rigorous assessment.What you will be expected to do
modeling, architecture reviews, penetration testing, secure coding programs, and vulnerability
management.
● Perform manual penetration testing and vulnerability assessments on web applications, APIs,
and android mobile applications.
● Perform security reviews for AI‐native products, models, pipelines, and inference services.
● Onboard applications into the SSDLC program and be a security point of contact for the
application product.
● Own security incident response for product-layer issues, define remediation plans, and track
fixes through to closure.
● Integrate and tune SAST/DAST/IAST/SCA tools in CI/CD, create custom rules where needed and
actively triage false positives.
● Review and harden cloud infrastructure — Kubernetes RBAC, pod security, network policies,
Istio service mesh, Keycloak/OIDC configurations, and IAM across AWS, DigitalOcean, GCP, and
Firebase.
● Communicate vulnerabilities and risk clearly to developers, product managers, and leadership
— in language that drives actionable results.
● Conduct application security training for engineers, product managers etc.You might be a strong candidate if you have/are
● At least 2 years of hands-on application security experience, ideally in product‐based or SaaS
companies working directly with engineering teams.
● Good understanding of OWASP Top 10, API Security Top 10, and common authorization flaws
including BOLA, BFLA, and privilege escalation.
● Experience in manually testing web apps, APIs, and Android apps, manual code reviews
(beyond just running tools).
● Familiarity with OAuth2, OIDC, JWT, and typical misconfigurations in providers such as Keycloak
and Firebase.
● Experience integrating and tuning SAST/DAST (and optionally SCA/IAST) tools within CI/CD
pipelines.
● Exposure to cloud‐native security: Kubernetes, containers, service mesh (Istio mTLS and
policies), and IAM concepts across at least one major cloud provider.
● Experience with Cloudflare WAF, perimeter security scanning, and/or red‐team testing is a
plus.
● Familiarity with AI/LLM security risks (e.g., OWASP LLM Top 10).
● Practical experience implementing guardrails, prompt validation, output filtering, or other
safety controls in production AI features, or assessing insecure use of third‐party AI APIs.
● Ability to script/automate (e.g., Python, Bash) to streamline testing, data collection, and
reporting.
● Interest in or experience with building AI based security tools that improve coverage or reduce
manual toil.What Sun King offers
Originally posted on Himalayas
microsoft
Zoox
Mind Computing
GXO Logistics
Physitrack
Workstreet
Aimpoint Digital
ServiceNow
usd AG
Accenture
CACI International Inc
Sophos
Cyera
Salesforce
Coalfire
Sun King
Aledade
TechBiz Global
CenturyLink
Make-A-Wish America
Krisvconsulting Services Pte Ltd
Catalyst Acoustics Group
KBR, Inc.
Sophos
NBCUniversal
TechBiz Global
mercor
Distribusion Technologies GmbH
The Quality Group GmbH
Flodesk
Job location: Remote About the role:We are looking for an Application Security Engineer to own the end-to-end security posture of our
● Own application security responsibility for assigned business functions by performing threat
●Bachelor's degree in Computer Science, Cyber Security, or any related fields.
product platform — spanning mobile applications, REST APIs, microservices, cloud infrastructure, and
third-party integrations. In this role, the Application Security Engineer will be involved into the
product and engineering lifecycle early, shaping secure design decisions before code is written, and
validating them through rigorous assessment.What you will be expected to do
modeling, architecture reviews, penetration testing, secure coding programs, and vulnerability
management.
● Perform manual penetration testing and vulnerability assessments on web applications, APIs,
and android mobile applications.
● Perform security reviews for AI‐native products, models, pipelines, and inference services.
● Onboard applications into the SSDLC program and be a security point of contact for the
application product.
● Own security incident response for product-layer issues, define remediation plans, and track
fixes through to closure.
● Integrate and tune SAST/DAST/IAST/SCA tools in CI/CD, create custom rules where needed and
actively triage false positives.
● Review and harden cloud infrastructure — Kubernetes RBAC, pod security, network policies,
Istio service mesh, Keycloak/OIDC configurations, and IAM across AWS, DigitalOcean, GCP, and
Firebase.
● Communicate vulnerabilities and risk clearly to developers, product managers, and leadership
— in language that drives actionable results.
● Conduct application security training for engineers, product managers etc.You might be a strong candidate if you have/are
● At least 2 years of hands-on application security experience, ideally in product‐based or SaaS
companies working directly with engineering teams.
● Good understanding of OWASP Top 10, API Security Top 10, and common authorization flaws
including BOLA, BFLA, and privilege escalation.
● Experience in manually testing web apps, APIs, and Android apps, manual code reviews
(beyond just running tools).
● Familiarity with OAuth2, OIDC, JWT, and typical misconfigurations in providers such as Keycloak
and Firebase.
● Experience integrating and tuning SAST/DAST (and optionally SCA/IAST) tools within CI/CD
pipelines.
● Exposure to cloud‐native security: Kubernetes, containers, service mesh (Istio mTLS and
policies), and IAM concepts across at least one major cloud provider.
● Experience with Cloudflare WAF, perimeter security scanning, and/or red‐team testing is a
plus.
● Familiarity with AI/LLM security risks (e.g., OWASP LLM Top 10).
● Practical experience implementing guardrails, prompt validation, output filtering, or other
safety controls in production AI features, or assessing insecure use of third‐party AI APIs.
● Ability to script/automate (e.g., Python, Bash) to streamline testing, data collection, and
reporting.
● Interest in or experience with building AI based security tools that improve coverage or reduce
manual toil.What Sun King offers
Originally posted on Himalayas