Simple Life is the #1 AI-powered health coaching app for adults who want to lose weight and enjoy a healthier lifestyle—without the stress or extremes. Our mission is to empower people to feel their best every day. By challenging traditional, restrictive approaches, Simple offers a more sustainable method grounded in ease, personalization, and real-life support.

Simple has had over 17 million downloads and more than 300,000 5-star reviews, having helped millions lose weight successfully and sustainably. Simple has earned recognition as Best Virtual Coach and one of the Top 100 AI companies — all thanks to a dedicated general team driving real impact.

With SIMPLE as a partner in their pocket, users feel cared for and empowered to embrace — and stick to — new healthy habits. To learn more, visit simple.life.

We are looking for a T-shaped Senior Security Engineer with strong depth in application security and cloud-native infrastructure security. You will work hands-on across Go services, AWS, Kubernetes/EKS, Istio, CI/CD,



and compliance-driven technical controls to make security part of how we build, deploy, and operate software.

This is an engineering-first security role. You should be comfortable moving across the stack - from code review and threat modeling to IAM, Kubernetes policy, service mesh security, and secure delivery pipelines - while going deepest on application security and cloud security.

Our main application stack is written in Go.

What You’ll Do

Own and improve application security across the SDLC, including secure design reviews, threat modeling, security-focused code review, and CI/CD-integrated SAST, SCA, and secrets scanning.
Harden our AWS and Kubernetes/EKS environment, including IAM, network segmentation, workload identity, secrets management, admission control, and runtime security controls.
Secure and improve our Istio service mesh, including mTLS, authorization policies, ingress/egress controls, and service-to-service security patterns.

📌 Senior Security Engineer (España)
🏢 Simple Life App
📍 España