Cleo Jobs

Staff Application & Product Security Engineer

Cleo

Staff Application & Product Security Engineer

Posted 6 Hours Ago

Hiring Remotely in US

Remote or Hybrid

160K-180K Annually

Senior level

Cloud • eCommerce • Information Technology • Professional Services • Software

Cleo is the pioneer and global leader in the supply chain orchestration software category.

The Role

Owns Cleo’s application and product security strategy across SaaS and customer-hosted products. Responsibilities include maturing the SSDLC, threat modeling, security scanning, vulnerability triage, penetration testing, coordinated disclosure, CVE management, product security controls, customer-facing advisories, and NIST CSF evidence. The role also leads security enablement, roadmap prioritization, AI security reviews, and hands-on exploit reproduction and patch validation while guiding engineers and security partners.

Summary Generated by Built In

You will be the most senior hands-on application security engineer at Cleo, owning both how security is built into our products from design through release and the security posture of the products we ship, both on-premise and SaaS, as our customers experience them. This is a Staff-level individual contributor role with real program ownership: you set the standards, build the guardrails, and work directly with engineers in the code. You report to the CISO and partner daily with Engineering, and our Cloud Security team. You are not a one-person department: security engineers and consulting partners execute under your direction. Your job is to set direction, make the hard technical calls, and build leverage through automation and partners rather than carry every task yourself.
Essential Duties & Responsibilities
Secure development lifecycle and guardrails

Own and mature Cleo's SSDLC: security requirements, threat modeling, and design reviews for high-risk product changes, APIs, and integrations.

Run and tune SAST, SCA, secrets detection, container, and IaC scanning.

Build reusable secure patterns, reference implementations, and policy-as-code controls that make the secure path the default path.

Own developer security enablement: Security Champions meeting, deliver the engineering security training campaigns, grow a named champion in every squad, and give developers practical remediation guidance, office hours, and self-service security capabilities.

Product vulnerability management

Run risk-based triage, remediation, and verification for application and product vulnerabilities, including remediation SLAs, escalation, and exceptions. Reproduce externally reported vulnerabilities against running product instances and validate patches before release.

Own the penetration testing program: scope and coordinate third-party engagements, perform targeted testing yourself, and validate findings through retesting.

Run our Vulnerability Disclosure Program, including researcher communications and coordinated disclosure.

Coordinate the CVE lifecycle for Cleo products and support product-security incident response.

Own the application and product-security controls in Cleo's NIST CSF 2.0 program: track maturity, close gaps, and produce the evidence our audits rely on.

Product security

Own the security posture of the products Cleo ships, across SaaS and customer-hosted deployment models: secure defaults, authentication and session controls, RBAC and tenant isolation, admin data access, security-relevant configuration, and hardening guidance for customers.

Own the Product Security Roadmap: partner with Product Management, the CTO, and Architecture to get security features prioritized and shipped, including SSO/SAML upgrades, the in-app RBAC redesign, endpoint-level access control, and customer-requested controls, and represent security in RTE Sync and Boundary Review.

Be the technical owner for customer-facing product security: triage customer vulnerability-scan findings and penetration-test reports against Cleo products, answer security RFIs and enhancement requests, and author customer-facing advisories, security release notes, and hardening documentation.

AI Fluency Competencies

Own threat modeling and security review for LLM-enabled product features, AI agents, and AI-assisted development workflows.
Build controls and secure patterns for prompt injection, sensitive data exposure, insecure output handling, excessive agency, insecure tool integrations, and AI supply-chain risk.
Apply and operationalize the OWASP Top 10 for LLM Applications and the NIST AI Risk Management Framework across product and engineering.

Prerequisites

6+ years in application security, product security, or secure software engineering, including experience building or maturing an AppSec program across multiple engineering teams.

Strong object-oriented developer: Strong proficiency in an object-oriented programming language is required, with Java preferred given Cleo's core products are Java-based. You should be able to read, debug, and write production-quality code and be comfortable working across languages such as TypeScript, Python, or Go.

Deep knowledge of application attack surfaces: authentication, authorization, API security, business-logic flaws, and modern service architectures.

Hands-on experience integrating and tuning SAST, SCA, and secrets scanning in GitHub and CI/CD pipelines.

Hands-on exploit reproduction and patch validation: you can take a researcher's report of a pre-authentication vulnerability, reproduce it against a running Java web application, confirm the fix, and write up what the researcher and the customer each need to hear.

Coordinated disclosure experience with external security researchers and customers, including holding an embargo timeline and driving a CVE to publication.

Product security experience on shipped software with an installed base: secure defaults and hardening guidance, customer-facing advisories and security release notes, and turning a customer's scan report or RFI into a fix-or-explain response.

Experience running threat modeling, design reviews, and manual security testing, and working directly with developers through remediation.

Clear communicator who can turn technical risk into engineering guidance for both developers and executives, and who can hold a release-gating decision with Engineering leadership when the risk warrants it.

Nice to Have

Securing LLM applications, AI agents, or AI-assisted development tools.

SBOM (CycloneDX/SPDX), VEX, artifact signing, and SLSA.

AWS, Kubernetes/EKS, Terraform, Jenkins.

Snyk, GitHub Advanced Security, Semgrep, Burp Suite.

NIST CSF 2.0, OWASP SAMM/ASVS, NIST SSDF; supporting SOC 2 or ISO 27001 audits.

CSSLP, OSWE, GWAPT, AWS Security, or comparable certifications.

Enterprise software with both SaaS and customer-hosted deployment models; SSO/SAML, RBAC design, and multi-tenant isolation; MFT/EDI or other B2B integration products.

A few things we have to offer:

Compensation: $160,000 to $180,000 + Bonus Opportunity
Great Healthcare + Dental + Vision
Flexible PTO
Culture of support, encouraging Life-Work balance
401k match
FSA and HSA options
Employee Assistance Program
Paid Parental Leave
Remote work environment
Representing a company with 4,000+ clients and a 99% retention rate
Accelerated title and salary growth potential
A fun and energetic work environment that makes you excited to go to work every day

Skills Required

6+ years of experience in application security, product security, or secure software engineering
Experience building or maturing an application security program across multiple engineering teams
Strong proficiency in an object-oriented programming language; Java preferred
Ability to read, debug, and write production-quality code
Knowledge of authentication, authorization, API security, business-logic flaws, and modern service architectures
Hands-on experience integrating and tuning SAST, SCA, and secrets scanning in GitHub and CI/CD pipelines
Experience reproducing exploits and validating patches against running applications
Experience coordinating vulnerability disclosure with external security researchers and customers, including CVE publication
Product security experience with shipped software and an installed customer base
Experience with secure defaults, hardening guidance, customer advisories, security release notes, and RFI responses
Experience conducting threat modeling, design reviews, manual security testing, and developer remediation
Strong communication skills and ability to translate technical risk for developers and executives
Experience securing LLM applications, AI agents, or AI-assisted development tools
Experience with SBOM, CycloneDX, SPDX, VEX, artifact signing, or SLSA
Experience with AWS, Kubernetes/EKS, Terraform, or Jenkins
Experience with Snyk, GitHub Advanced Security, Semgrep, or Burp Suite
Knowledge of NIST CSF 2.0, OWASP SAMM, OWASP ASVS, NIST SSDF, SOC 2, or ISO 27001
CSSLP, OSWE, GWAPT, AWS Security, or comparable certification
Experience with SaaS and customer-hosted enterprise software, SSO/SAML, RBAC, multi-tenant isolation, MFT/EDI, or B2B integration products

What the Team is Saying

Cleo Compensation & Benefits Highlights

Healthcare Strength — Healthcare coverage is described as comprehensive, including medical, dental, vision, life insurance, and mental‑health support. This breadth indicates strong core health protections.
Parental & Family Support — Parental and family support is portrayed as substantial, with generous paid leave for primary and secondary caregivers and family-related benefits. Caregiver-focused programs and childcare support are also noted.
Retirement Support — Retirement benefits are characterized as solid, with company matching for pension/401(k) referenced publicly. Historical materials also point to a strong match for U.S. employees.

Learn more about Cleo's Compensation & Benefits →

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The Company

HQ: Rockford, IL

500 Employees

Year Founded: 1976

What We Do

Join. Grow. Lead the Future of Supply Chain. At Cleo, we don’t just integrate supply chains—we orchestrate them. As the pioneer and global leader of the Supply Chain Orchestration software category, Cleo is helping thousands of companies around the globe drive transformation, deliver excellence, and shape the future of their global operations. Whether you're joining us from outside or growing within, Cleo is your platform to lead with purpose, innovate with impact, and thrive in a culture that champions your growth. Why Join Us? Strategic Influence: Be at the helm of global supply chain strategy, driving decisions that impact customers, partners, and communities worldwide. Innovation-Driven Culture: Work with the latest in AI, automation, and digital supply chain platforms to solve complex challenges. End-to-End Visibility: Lead across planning, sourcing, logistics, and fulfillment—connecting dots others can’t see. Sustainability at the Core: Help build ethical, transparent, and sustainable supply chains that make a difference. Why Grow with Us? Leadership Development: Access world-class programs, executive mentorship, and rotational opportunities to accelerate your career. Internal Mobility: We prioritize internal talent—your next big opportunity could be just one conversation away. Recognition & Impact: Your ideas matter. Your leadership is visible. Your success is celebrated. Inclusive Community: Thrive in a diverse, collaborative environment where every voice is heard and respected. Our Promise We are a top talent destination for supply chain leaders technology who want to make bold moves, solve real-world problems, and grow without limits. Whether you’re stepping into your first leadership role or scaling new heights, your journey starts here. Cleo … never stops

Why Work With Us

Cleo’s people share a genuine respect for each other and for the future we’re helping our customers to create. Beyond guiding how we act, and more important than driving us to deliver solutions that help our company and our customers succeed, our core focus on Appreciation creates something even more essential, for everyone: enduring value.