CareerPlan

Senior Systems Engineer - Application Security

Amsterdam, NetherlandsFull-time$66k2026-09-22 → 2026-11-10
Hybrid · SwitzerlandNo visa sponsorshipU.S. persons only (export control)

Core

Design and maintain scalable application security systems (WAF, Page Shield, API Shield) protecting millions of websites at internet scale.

Role type

Senior Systems Engineer - Application Security

Builds

Production security services handling up to 100m requests/second

Domain

Internet Security / Distributed Systems

Deliverable

production ML models | product features

Required skills

Go or Rust, distributed systems at scale, DevOps tooling (Kubernetes, Salt, Kafka, Systemd), Linux/Unix fundamentals

Preferred skills

Cyber security experience

Technologies

Go, Rust, Kubernetes, Salt, Kafka, Systemd

Responsibilities

Design systems and write code following bleeding edge best practices; Review RFCs, technical specifications and code; Deploy and maintain live software-based services at scale; Take regular shifts as part of the team's On Call rota; Keep up to date with trends in detecting current and emerging security risks to web applications

Seniority

Senior, hands-on IC