API Platform Engineer, Kong API & AI Gateway

SIX Group Services Ltd.; Las Rozas de Madrid; Hybrid; EUR 65,000 - 90,000; Full time

Benefits offered by this job

Flexible Work Models

Personal Development

Agile Working Methods

Job summary

SIX Group Services Ltd. in Madrid is seeking an experienced platform engineer to join our international team. You will help application teams expose APIs and connect to AI services securely through a Kong platform.

This is a hands-on role operating Kong in production, reducing toil through automation and building self-service paths for API onboarding. The ideal candidate has production experience with API gateways, Kubernetes/OpenShift and Azure, plus automation skills with GitOps, CI/CD and

Qualifications

• Hands-on API gateway operation in production environments.
• Experience with Kubernetes/OpenShift, Azure, AKS or Entra ID.
• Automation skills with GitOps, CI/CD and IaC tools.

Responsibilities

• Operate and improve Kong API Gateway on OpenSnd Microsoft Azure, handling incidents, changes, upgrades, security, capacity and lifecycle management.
• Design and build automation and self-service capabilities for API onboarding and policy delivery.
• Develop platform services and tooling using APIs, GitOps, CI/CD and infrastructure as code.
• Establish observability across metrics, logs and traces using OpenTelemetry, Prometheus, Grafana and Elastic Stack; strengthen API security.
• Troubleshoot production issues, perform root-cause analysis and drive durable platform improvements.
• Share on-call responsibility for the platform to reduce operational toil.

Skills

API gateway production

Kubernetes/OpenShift + Azure

GitOps CI/CD IaC

Scripting/automation

Networking TLS OAuth

Observability incident response

Job description

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What sets us apart drives us ahead: between local roots and global relevance, we are a unique blend of tradition and future, of foundation and growth. We value bright minds and inspire them to grow with their ideas. Come and shape the future of finance with us.

Madrid | Working from home up to 40% | Reference 8187

Join our international platform team in Madrid and help application teams expose APIs and connect to AI services securely through a critical shared Kong platform.

This is a hands-on engineering role, not a pure administration position. You will operate Kong in production, reduce toil through automation and build self-service paths for API onboarding and policy delivery.

The role suits an experienced engineer who already handles production topics independently and wants to broaden technical ownership. Direct Kong experience is welcome. Experience with another API gateway is equally relevant.What You'll Build First: Turn Kong AI Gateway into a production-ready service that gives application teams a secure, observable and self-service path to LLM and MCP connectivity. Build the guardrails for policy enforcement, traffic routing, rate limiting, auditability and reliable operations.

What You Will Do

• Operate and continuously improve our business-critical Kong API Gateway across OpenSnd Microsoft Azure, including incidents, changes, upgrades, security, capacity and lifecycle management.
• Design and build automation and self-service capabilities that make API onboarding, policy delivery and platform changes safer, faster and more consistent.
• Develop platform services and tooling using APIs, GitOps, CI/CD pipelines and infrastructure as code.
• Establish actionable observability across metrics, logs and traces using OpenTelemetry, Prometheus, Grafana and the Elastic Stack, and strengthen API security through policies, certificates, secrets and modern identity standards.
• Troubleshoot complex production issues, perform root-cause analysis and turn operational learnings into durable platform improvements.
• Share on-call responsibility for the platform and use incidents to eliminate recurring operational toil.

What You Bring

• You do not need experience with every tool listed below. We are looking for solid production judgment, curiosity and the ability to take ownership.
• Hands-on experience operating an API gateway in a production environment.
• Strong production experience with Kubernetes or OpenShift and Microsoft Azure and services such as AKS and Entra ID.
• Proven automation skills using GitOps, CI/CD and infrastructure or configuration as code, with tools such as Terraform, Helm, Argo CD or GitLab CI.
• Software engineering or scripting experience. Go for Terraform integrations or Java and Spring Boot for self-service platform development is advantageous.
• Solid knowledge of networking, TLS, certificates, secrets and identity standards such as OAuth and OIDC.
• Experience with observability, incident response and root-cause analysis in business-critical, regulated environments. Knowledge of OpenTelemetry is a plus.

If you have any questions, check out our FAQ page or call Yuliya Stoyko at [phone] .

For this vacancy we only acceptdirect applications.

Diversity is important to us. Therefore, we are looking to receiving applications regardless of any personal background.

What We Offer

Flexible Work Models
We trust our employees and offer a work environment that is well-balanced, productive and fosters success.

Personal Development
You will benefit from a culture of continuous learning and feedback. Your personal growth is supported through an extensive learning offering.

Agile Working Methods
Whether through scrum or design thinking,
we solve exciting tasks together in teams.