Pliant

Security engineer in fintech

In short

Senior-level, fully remote Security Engineer role at Pliant, a B2B fintech payments platform, hardening cloud infrastructure (AWS, ECS/EKS) and embedding DevSecOps practices into the SDLC. The job centers on security automation, compliance evidence collection (PCI DSS, ISO 27001, SOC 2, DORA), vulnerability management, incident response, and application security (pentesting, threat modeling). Requires 5+ years in a technical security role, strong AWS and Terraform skills, container security experience, and proficiency in Python, Bash, or TypeScript.

About Pliant
Pliant is a modular B2B payments platform that combines commercial card issuing, payment accounts, FX, and spend management in one system — adapting to existing setups rather than requiring customers to replace them. We're looking for a hands-on Security Engineer (m/f/d) with deep expertise in DevSecOps, cloud security (AWS), and automation to join our growing security team at Pliant.
Responsibilities
•Integrate security best practices throughout the SDLC to protect products, infrastructure, and customer data.
•Design, implement, and maintain security automation tooling to address problems at scale (e.g., patch management, vulnerability management, compliance evidence collection).
•Embed security controls and guardrails into the developer platform to enable secure and efficient delivery.
•Define and promote "Paved Roads" - reusable, secure development standards and Terraform/Docker modules.
•Harden containerized workloads (ECS and EKS) - ensure clusters follow security best practices for isolation, networking, and access control; maintain secure, up-to-date base images; enforce image signing and provenance; implement admission control, least-privilege IAM roles, and runtime anomaly detection.
•Deploy and manage cloud security platforms (e.g., Wiz) and drive remediation workflows.
•Automate collection of audit-ready evidence for frameworks like PCI DSS, ISO 27001, SOC 2, and DORA.
•Support vulnerability management (triage, SLAs, RCA) and lead incident response and post-mortems.
•Conduct threat modeling, architecture reviews, and provide guidance on secure design and cryptography.
•Build and maintain security documentation, internal tooling, and feedback loops to strengthen security culture.
•Act as a security SME across application, cloud, and compliance domains.
Requirements
•5+ years of experience in a technical security role, preferably in a cloud-native or fintech/SaaS environment.
•Strong proficiency with AWS services and security (IAM, KMS, CloudTrail, S3, GuardDuty, SCPs, etc.).
•Solid understanding of DevSecOps practices and integrating security into CI/CD workflows.
•Proficient in Terraform and other IaC tooling, capable of writing secure, reusable modules and enforcing guardrails.
•Proficient in Python, Bash, or TypeScript – capable of scripting and building automation tools.
•Experience securing containers (Docker, ECS, EKS, or Kubernetes) and implementing hardened images.
•Expert level understanding of OWASP Top 10, secure coding, and software supply chain risks.
•Experience managing and integrating cloud security platforms (e.g., Wiz, Orca, Lacework, Prisma Cloud).
•Understanding of vulnerability management and remediation workflows at scale.
•Experience with application security practices, including code review, threat modeling, static and dynamic analysis (SAST, DAST), and attack surface analysis.
•Experience performing Application Penetration Testing or Vulnerability Research / Bug Bounty Hunting (ability to discover and identify fixes for SQLi, XSS, CSRF, SSRF, authentication and authorization flaws, and other web-based security vulnerabilities).
•Experience with threat modeling or security reviews.
•Excellent communication skills and empathy — security is a complex topic that you have to be able to explain to audiences of various levels of previous exposure or learning.
•A builder's mindset: you enjoy solving real-world security problems with automation.
•A pragmatic approach to security: focused on reducing risk while enabling delivery.
•Willingness to dive into unknowns, collaborate across teams, and take ownership.
•Passion for clean, maintainable, and reusable code - even for security tools.
Nice to have
•Exposure to compliance frameworks (PCI DSS, ISO 27001, SOC 2).
•Familiarity with detection engineering or lightweight SIEM tooling.
•Contributions to open-source security tools or internal security automation frameworks.
Conditions
•The opportunity to work in a growing team with big responsibilities that thrives on a strong exchange of knowledge and excellence.
•Attractive remuneration.
•Your choice of preferred OS, Windows or Mac.
•Flat hierarchy and transparent communication in a relaxed, professional atmosphere.
•Opportunity to develop your talent in a dynamic team with ambitious goals.
•Flexibility and possibility to work remotely.
•Company card with a monthly allowance for lunches, coffee, etc. with co-workers.

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