Job Details

Multi-Region Microservices Mesh with Istio, Envoy, Auto-Scaling & Zero-Trust Security

Sep 26, 2025 - Senior

$9,800.00 Fixed

 Strategic Context

Your e-commerce platform ( $1.2 B GMV ) is moving from a monolithic Laravel app to 60+ micro-services ( Go, Node, Python ) deployed across AWS eu-central-1 and us-east-1. You need sub-100 ms intra-service latency, zero-trust security, automatic failover, and PCI-DSS compliance—all without breaking Black-Friday traffic.

 Senior-Level Outcomes You Will Achieve

  • Service mesh ( Istio 1.19 ) running Envoy 1.28 sidecars → mTLS everywhere, JWT validation, rate-limiting.
  • Multi-region active-active routing with latency-based fail-over <2 s.
  • Horizontal pod autoscaling (HPA) on custom gRPC latency metrics → handles 10× traffic spike.
  • Zero-downtime releases via Canary + Flagger + Prometheus.
  • PCI-DSS segment isolation with AuthorizationPolicy and EgressGateway.

Engineering Scope I Will Own

  • Mesh Architecture Blueprint
    • Istio control-plane deployed on EKS 1.28 ( IRSA + OIDC ) in 2 regions.
    • Envoy sidecar injection via MutatingAdmissionWebhook ( namespace label istio-injection=enabled).
    • Multi-cluster secret sync using Istio Remote Secret.
  • Zero-Trust Security Posture
    • mTLS STRICT mode ( TLS 1.3, cipher-suite CHACHA20-POLY1305).
    • JWT policy ( JWKS from Auth0) enforced on ingress-gateway.
    • AuthorizationPolicy ( DENY by default, ALLOW per service SA + namespace).
    • EgressGateway forces PCI traffic through dedicated NAT → network segmentation evidence.
  • Traffic Management & Resilience
    • VirtualService + DestinationRule for canary 10 % → 50 % → 100 %.
    • Retry ( 3 attempts, 2 s timeout ) + circuit-breaker ( 500 consecutive 5xx → 30 s open).
    • Locality load-balancing ( region/zone ) → <100 ms intra-region RTT.
  • Auto-Scaling & Observability
    • Custom metrics adapter exposes gRPC p99 latency; HPA scales 1 → 20 replicas in 45 s.
    • Grafana dashboards: golden signals + mesh topology + mTLS certificate expiry.
    • Alertmanager pages on p99 >500 ms or certificate <30 days.
  • Compliance & Evidence Package
    • PCI-DSS segment diagram ( Visio ) + Istio config dump ( JSON ).
    • Pen-test report ( automated kube-bench + kube-hunter ).
    • SLSA L3 provenance ( Sigstore cosign ) for mesh images.

Senior Deliverables

  • GitOps repo ( ArgoCD ) containing Istio, Flagger, HPA, Grafana YAML.
  • Runbook ( 50 pages ): disaster recovery, certificate rotation, region fail-over.
  • Evidence bundle: PCI diagram, pen-test PDF, SLSA attestations.
  • Black-Friday playbook: pre-scale, circuit-breaker tuning, on-call roster.

Why a Senior Specialist is Non-Negotiable

  • Istio steering committee contributor + Envoy maintainer experience.
  • Carried 3 Fortune-500 companies through PCI-DSS micro-segmentation.
  • 30-day post-go-live 24×7 Slack war-room included.
Containerization technologies (e.g., Docker, Kubernetes)
  • Proposal: 0
  • Verified
  • Less than a month
Maria Hernandez
Maria Hernandez Inactive
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Aug 4, 2025
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