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Senior DDOS Software Engineer

Oracle
Full-time
On-site
Ireland
Cybersecurity
Description
Basic qualifications
 
  • 6+ years building production backend systems (at least 3 years in high-scale or low-latency environments).

  • Proficiency in one or more: Java/Python/C++/Rust/Go

  • Strong preference for Java for control-plane/services.

  • Strong systems design skills: concurrency, memory management, performance tuning, API design, and distributed systems fundamentals.

  • Experience with DevOps at scale: CI/CD, automated testing, canarying, rollout/rollback, and configuration management.

  • IaC expertise (e.g., Terraform) and solid cloud infrastructure fundamentals.

  • Familiarity with DDoS or network security services and related attack/defense patterns.

  • Solid networking knowledge: TCP/IP, IPv4/IPv6, BGP fundamentals; DNS/DHCP understanding.

  • Observability experience (metrics, tracing, alerting) and operational excellence mindset.

Preferred qualifications
 
  • Experience with anycast routing, traffic steering, and multi-region service readiness.

  • Exposure to SDN, programmable data planes, or hardware mitigation platforms.

  • Advanced telemetry/streaming pipelines for near-real-time detection (e.g., high-rate packet/flow analytics).

  • Background in resilience engineering, chaos testing, and capacity planning at hyperscale.

  • Containerization/orchestration experience and secure service-to-service communication (mTLS, policy).

  • Familiarity with zero trust principles, segmentation, and modern security architectures.

How you’ll have impact
 
  • Ship core DDoS detection/mitigation capabilities that protect OCI’s Tier 0 availability.

  • Enable new customer-facing DDoS offerings with self-service policy and visibility.

  • Raise engineering quality, automation, and compliance maturity across the stack.

Ways of working
 
  • Security and privacy by design; auditable controls and policy adherence from day one.

  • Data-driven delivery with clear KPIs, SLOs, and stage gates from prototype to GA.

  • Collaborative, inclusive engineering culture with code reviews, design docs, and knowledge sharing.

Note
 
  • This role aligns with Oracle’s standards for security, privacy, and compliance. When selecting tools or third-party integrations, ensure they align with Oracle’s internal guidelines and approval processes.

  • #LI-NS1



Responsibilities
What you’ll do
 
  •  Design and build low-latency backend services for DDoS detection, classification, and mitigation across OCI’s global edge.

  •  Implement scalable data and control planes (policy, signaling, telemetry, orchestration) with strong fault isolation and resiliency.

  •  Develop traffic engineering capabilities (anycast, BGP signaling, routing policy) and integrate with OCI networking, DNS, and edge services.

  •  Own operational readiness: SLOs/SLAs, on-call health, incident response, runbooks, and post-incident improvements.

  • Build automation-first workflows: CI/CD pipelines, test frameworks, canary/blue-green releases, and infrastructure-as-code.

  •  Create robust observability (metrics, logs, traces) and capacity/scale modeling for high-throughput, high-availability systems.

  • Partner with product, SRE, and network engineering to deliver roadmap features from concept to GA with security-by-design.

  • Contribute to threat modeling, architecture reviews, and compliance/audit readiness for Tier 0 services.



Qualifications

Career Level - IC3









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