API Security Engineer: Platform Guardrails & Resilience

Kyndryl; Amstelveen; On-site; EUR 90,000 - 120,000; Full time

Job summary

Kyndryl is seeking an API Security Engineer to strengthen our central platform by securing APIs across customer and partner ecosystems. You will drive API security strategy, standards, and governance, translating security controls into automated platform guardrails and policies.

You will collaborate with engineers, architects, and security specialists to ensure APIs are secure, compliant, and resilient against evolving threats. Excellent communication and ownership are essential.

Qualifications

• Strong cybersecurity principles across cloud and application security.
• In-depth API security expertise with OWASP Top10, Mitre, CVE.
• Advanced authN/authZ: OAuth, JWT, session management, mTLS, attribute- and object-level controls.
• Analytical mindset to assess findings and translate into policy improvements.
• Ability to translate complex security requirements into practical platform policies and guardrails.
• Excellent communication and stakeholder management; proactive and ownership-driven.

Responsibilities

• Secure APIs and govern the API landscape to meet security requirements.
• Translate security standards into platform policies and automated guardrails.
• Collaborate with engineers, architects and security experts to ensure compliance and resilience.

Skills

API security

Cloud security

OWASP Top10

Mitre ATT&CK

CVE knowledge

OAuth

JWT

mTLS

Attribute-level authorization

Communication

Tools

Akamai Noname

Salt

Cequence

Job description

Kyndryl is seeking an API Security Engineer to strengthen our central platform by securing APIs across customer and partner ecosystems. You will drive API security strategy, standards, and governance, translating security controls into automated platform guardrails and policies.

You will collaborate with engineers, architects, and security specialists to ensure APIs are secure, compliant, and resilient against evolving threats. Excellent communication and ownership are essential.