--- title: 'Staff Application & Product Security Engineer at Cleo (US)' canonical: 'https://feeny.ai/job/staff-application-product-security-engineer-cleo-us-united-states-q8xfjtnr8p89' type: 'job' last_seen: '2026-10-12' --- # Staff Application & Product Security Engineer at Cleo (US) - **Company:** Cleo (US) - **Location:** United States - **Work type:** remote - **Posted:** 2026-10-02 - **Last confirmed live:** 2026-10-12 - **Apply:** https://job-boards.greenhouse.io/cleo/jobs/4739273005 ## Job description 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 We use artificial intelligence (AI) tools to assist in certain stages of our recruitment process, such as resume screening and candidate matching. These tools are designed to support fair and consistent evaluations. If you have questions about this process or would like to request an alternative assessment method, please contact us at hr@cleo.com. Cleo Communications US, LLC is an equal opportunity/affirmative action employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability status, protected veteran status, or any other characteristic protected by law. ## About Cleo (US) ## Company Overview - **One-liner**: Cleo provides a cloud-based platform for supply chain orchestration, enabling businesses to integrate, automate, and gain end-to-end visibility across their B2B ecosystems. - **Entity Type**: Private - **Headquarters**: Rockford, Illinois, USA (with offices in Chicago, IL; The Woodlands, TX; Amsterdam, Netherlands; and Bangalore, India) - **Founded**: 1976 (as a value-added network provider; evolved into a cloud platform company) - **Founders**: Not publicly available (the company has evolved significantly from its founding as a VAN provider) ## Core Business - **Primary industry/industries**: Supply Chain Orchestration, B2B Integration, EDI (Electronic Data Interchange), API Management - **Target customers**: B2B, Mid-Market to Enterprise (4,000+ customers including well-known global brands) - **Mission or purpose statement**: "To create a more resilient, connected, and visible global economy by helping businesses automate their most critical workflows." ## Products & Services - **Cleo Integration Cloud (CIC)**: A cloud-based platform for supply chain orchestration that automates EDI and API transactions, enables no-code trading partner onboarding, and provides end-to-end visibility across the business ecosystem. It is the company's flagship product. ## Market Standing - **Valuation/Market Cap**: Not publicly disclosed (private company) - **Key Metric**: Annual Revenue not publicly disclosed; Total Funding not publicly disclosed (bootstrapped/private growth). The company reports having grown **5X in 5 years**. - **Notable Investors/Partners**: Not publicly disclosed (the company appears to be privately held and organically grown without major external venture capital rounds). - **Growth Signals**: - **4,000+ customers** worldwide, including well-known global brands. - **95% customer renewal rate** and a **99% retention rate**. - Named a **G2 leader** in its category. - Growing its team across multiple global offices (Chicago, Rockford, The Woodlands, Amsterdam, Bangalore). - Actively infusing AI into its platform, network, and applications. ## Competitive Advantages - **Pioneer and market leader** in the "Supply Chain Orchestration" software category. - **High customer stickiness** with a 95% renewal rate and 99% retention rate, indicating a deeply integrated and valued product. - **4,000+ customers** including some of the best-known global brands, providing a strong network effect and credibility. - **Long-standing history** (founded in 1976) combined with modern cloud and AI innovation, giving it both stability and cutting-edge technology. ## Strategic Focus - **AI Integration**: Actively infusing AI into its platform, network, and applications to move "beyond experimentation and into practical, profitable implementation," turning data into actionable insights. - **Supply Chain Orchestration**: Leading the category it pioneered, focusing on end-to-end visibility, automation, and resilience for global supply chains. - **Growth**: Continuing its rapid expansion (5X in 5 years) by scaling its team and customer base globally. ## Why Work Here - **Culture**: Described as a place where "curiosity is valued," no one is satisfied with the status quo, and everyone is committed to the greater good. The company emphasizes collaboration, risk-taking, and integrity. - **Work-Life Balance**: Offers flexible PTO (unlimited PTO is mentioned), employee wellness programs, and a culture that supports "life-work balance." - **Remote/Hybrid Policy**: Offers remote work opportunities. Some roles are explicitly remote (e.g., Account Executive, Senior UX Designer), while others are office-based in Chicago, Rockford, The Woodlands, Amsterdam, or Bangalore. - **Benefits**: Great Healthcare, Dental, and Vision; 401k with company match; FSA and HSA options; Employee Assistance Program; Paid Parental Leave. - **Professional Development**: Career development programs, training to become a subject-matter expert in EDI, APIs, and supply chain orchestration, and a focus on internal mobility and leadership development. - **Engineering Culture**: Described as a place where "curiosity is valued," and the team works with the latest in AI, automation, and digital supply chain platforms. The company offers internship programs for students. - **Diversity & Inclusion**: An equal opportunity/affirmative action employer. ## Sources 1. [Cleo Careers Page](https://www.cleo.com/careers-US) 2. [Cleo About Page](https://www.cleo.com/company/about-cleo) 3. [Cleo Job Board (Greenhouse)](https://job-boards.greenhouse.io/cleo/jobs/4697740005) 4. [Cleo Account Executive Job Posting](https://job-boards.greenhouse.io/cleo/jobs/4692421005) 5. [Cleo Home Page](https://www.cleo.com/home) ## Other roles at Cleo (US) - [Product Manager](https://feeny.ai/job/product-manager-cleo-us-united-states-1hvvqtnyqm0j) — United States - [Solutions Architect](https://feeny.ai/job/solutions-architect-cleo-us-united-states-4hy1rsbyhnbz) — United States - [Sales Development Representative](https://feeny.ai/job/sales-development-representative-cleo-us-chicago-06g2m939fckw) — Chicago, IL