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Scalable Capital, a leading European fintech platform with over €30 billion in assets under management and one million clients, is seeking a Senior Platform Engineer to build and operate the infrastructure foundation for mission-critical, real-time trading systems.
You will own infrastructure end-to-end across cloud and physical environments, with responsibility for AWS, Linux hosts, networking, containerized runtimes, and observability. The role focuses on performance-sensitive systems with demanding reliability and tail-latency requirements.
Key responsibilities include:
- Design and improve infrastructure for performance-sensitive services, supported by repeatable production-like benchmarks covering throughput, burst behavior, and p50, p95, p99, and p99.9 latency
- Design, operate, and troubleshoot critical network paths across VPCs, routing, security groups, load balancers, DNS, private connectivity, and service-to-service communication
- Build and improve infrastructure as code, host lifecycle management, and deployment workflows across development, staging, and production environments
- Improve reliability, failover, recovery, and operational safety across Linux-based runtimes, containers, serverless workloads, event-driven flows, and scheduled processing
- Harden platform capabilities around IAM, KMS, secrets, service connectivity, and secure operational access
- Raise the standard of observability through dashboards, alerting, tracing, health checks, readiness checks, and incident tooling
- Partner with software engineers on reusable infrastructure patterns, production readiness, CI/CD, and incident response
Scalable Capital operates across Munich, Berlin, Vienna, Milan, and London with over 700 employees. The company offers a full banking license and serves retail and institutional clients through its Scalable Broker, Scalable Wealth digital wealth management, and European Investor Exchange platforms.
Qualifications:
- University degree in Computer Science, Engineering, or comparable practical background
- Experience with dedicated host strategies, low-latency networking, CPU pinning, and host-level isolation techniques
- Strong experience owning production infrastructure for distributed or real-time systems
- Strong hands-on experience with AWS, especially EC2, VPC networking, IAM, KMS, S3, SQS, SNS, and related operational tooling
- Strong hands-on networking experience, including routing, DNS, load balancers, network security, service connectivity, and debugging complex production traffic paths
- Strong experience with Terraform and infrastructure lifecycle management
- Deep knowledge of Linux systems, containers, runtime debugging, and host-level performance tuning
- Experience operating performance-sensitive workloads where predictability and tail-latency matter, not only average throughput
- Experience with infrastructure patterns for stateful services, active/standby failover, recovery, deployment safety, and controlled cutovers
- Strong analytical thinking, pragmatic decision-making, and clear communication across engineering and operational stakeholders
- Nice to have: Experience supporting Rust-based service environments; experience in regulated, security-sensitive, or high-reliability environments
