Role: Senior DevOps / Platform Engineer (HFT / Low-Latency)

Location: [Istanbul / Onsite]

Type: Full-time

About Us

At Ahlatci Holding, we build real-time trading and risk systems designed for low latency, high throughput, and production reliability. We turn research into measurable execution performance.

The Role

You’ll own the platform foundations that keep HFT/low-latency services fast and reliable: compute, networking, observability, deployments, and incident readiness. You’ll partner closely with Quant/Trading Engineers to reduce latency, eliminate bottlenecks, and improve resiliency.

What You’ll Do

• Build and operate production environments for low-latency services (market data, execution, risk)
• Design high-performance networking and connectivity (public/private exchange links, routing, firewalls, VPNs where needed)
• Create deterministic, repeatable deployments (IaC + CI/CD), with safe rollbacks and canary strategies
• Linux performance tuning: CPU pinning/isolcpus, IRQ tuning, NUMA awareness, hugepages, kernel/sysctl tuning
• Observability: metrics/logs/traces, SLOs/SLIs, alerting that catches real issues (not noise)
• Reliability practices: incident response, postmortems, capacity planning, chaos/failure testing
• Secrets management, access control, hardening, and compliance-friendly audit trails
• Support multi-region / colocation strategies when required (latency-sensitive placement decisions)

Requirements

• 5+ years in DevOps/SRE/Platform Engineering (fintech/trading experience is a plus)
• Strong Linux fundamentals and performance troubleshooting (perf basics, flamegraphs familiarity is a plus)
• Solid experience with Docker + Kubernetes (or deep container orchestration experience)
• Infrastructure as Code: Terraform (preferred), CloudFormation/Pulumi acceptable
• CI/CD: GitHub Actions/GitLab CI/Jenkins with production-grade pipelines
• Observability stacks (one or more): Prometheus/Grafana, OpenTelemetry, ELK/OpenSearch, Loki
• Networking: TCP/UDP behavior, latency sources, packet loss debugging, routing/DNS, TLS termination
• Cloud experience (AWS/GCP/Azure) and/or bare-metal/colocation operations

Nice to Have (Strongly Valued in HFT Context)

• Experience with low-latency networking: NIC tuning, RSS/RPS, interrupt coalescing, jumbo frames (when appropriate)
• Kernel-bypass / acceleration familiarity: DPDK, XDP/eBPF (even at the “I can debug it” level)
• Time synchronization: NTP/PTP, clock drift monitoring, timestamp accuracy
• Message bus ops: Kafka/NATS/Redis at high throughput with low tail latency
• Secure key management (Vault/KMS/HSM), mTLS service-to-service setups
• Experience running mixed workloads: K8s for general services + bare metal for ultra-low-latency paths

What We Offer

• Real performance engineering problems (p99/p999 latency matters here)
• Ownership and direct impact on execution quality and reliability