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Leke Ariyo's Profile
DevOps • SRE • Platform AWS • GCP • Azure

Leke Ariyo

I’m a Senior Site Reliability / Platform Engineer with 9+ years building secure, observable platforms that ship faster and fail safer. I’ve delivered at startups (YC) and large fortune 500 enterprises- from E2E CI/CD and ETL/ELT data pipelines to multi-region Kubernetes/OpenShift platforms. I reduce toil with automation, design with SLOs, and mentor engineers.

KubernetesOpenShiftTerraform AnsibleGolangPython GitOpsObservabilityETL/ELT
Portrait of Leke Ariyo

Summary

I help teams ship confidently by turning ambiguity into clear SLOs, codifying best practices in Terraform/Ansible, and automating releases with GitOps. I’m fluent in AWS, GCP, Azure and experienced with Kubernetes & OpenShift at scale. I build ETL/ELT pipelines, observability stacks, and security guardrails, and I mentor via ADPList, CodeMentor, and community groups like GDG.

Core Stack

EKS • GKE • AKSOpenShiftIstio Helm • Argo CDTerraform • Terragrunt • PulumiAnsible Prometheus • Loki • Thanos • ELKGolang • Python Kafka • Pub/SubBigQuery • Snowflake

Experience

Senior Cloud Engineer - Lloyds Banking Group, Edinburgh

Oct 2023 – Present
  • Standardised Terraform modules & GitHub Actions across 200+ services, cutting infra build time ~70%.
  • Multi-region EKS/GKE with Istio and mTLS; payments APIs at 99.99%+ availability.
  • WAF + Istio AuthorizationPolicies: 97% malicious traffic blocked with zero false positives.
  • Vault-backed secret rotation operator; removed 100+ tickets/month across 5 teams.
  • Optimised TGW routing; 25% latency reduction on cross-region traffic.
  • Mentored 10+ engineers on platform hardening & SRE fundamentals; created runbooks and labs.

Lead SRE/DevOps - Anima App (YC18), Remote

Nov 2021 – Feb 2023
  • Built GKE + Istio platform from scratch; scaled to 1M+ MAU, #1 Figma dev plugin.
  • Helmfile + FluxCD GitOps; deploy time 30 min → 5 min, clearer canary rollbacks.
  • Prometheus/Thanos/Loki with SLO alerts; 50% MTTR reduction. 32% cloud cost savings.
  • Partnered with founders on reliability roadmap during fundraising; improved investor confidence.

DevOps Engineer - FoodCourt (YC S22)

Mar 2021 – Nov 2021
  • PCI-aware AWS infra with Terragrunt; WAF/Security Hub baselines.
  • ECS + ALB hardening; reduced external attack surface ~40%.
  • Automated ETL for operational analytics (S3 → Glue/Athena); improved decision latency.

Site Reliability Engineer - Pocket Network Inc, Florida

Jun 2020 – May 2021
  • Ran 50+ blockchain validator clusters (AWS/Azure) handling $1.5B/day traffic with zero slashing.
  • Terraform/Ansible bootstrap; rollout time 3h → 20m. Consolidated observability stack.
  • Mentored ops team on incident playbooks & SLOs; improved on-call quality.

Software Engineer - Touchcore Technology Limited, Lagos

2017 – 2019
  • Designed and deployed OpenShift clusters for internal microservices; automated onboarding with Helm.
  • Jenkins + Ansible pipelines for Java/Spring apps; deployment lead time cut by 50%.
  • Hybrid cloud architecture (VMware + AWS) with secure network segments and backups.
  • Coached interns/junior engineers via weekly infra deep-dives and code reviews.

Education & Certifications

  • MSc, Machine Learning & Deep Learning - University of Strathclyde
  • BEng, Electrical & Electronics Engineering - University of Ilorin
  • AWS SA-Pro • AWS Developer • CKA • CKS • Terraform Associate • GCP ACE • GCP PDE • Azure Admin (AZ-104)

Scholarships

  • Postgraduate Scholarship - AGIP
  • Undergraduate Scholarships - MTN, PTDF, SHELL, Chevron

Highlights

Multi-Cloud

AWS • GCP • Azure

Compliant landing zones, cross-region networking, GitOps releases.

Kubernetes & OpenShift

EKS • GKE • AKS • OCP

Istio/mTLS, policy, autoscaling, platform SLOs.

IaC & Automation

Terraform • Ansible

Modules, golden pipelines, operators; toil down, speed up.

Coding

Golang • Python

Operators, CLIs, automation for scale.

Data Pipelines

ETL • ELT

Kafka/PubSub → BigQuery/Snowflake with quality gates & lineage.

Mentorship

ADPList • CodeMentor

40+ sessions; onboarding rubrics & study tracks.

What I’ll Bring to Your Team

Actionable impact across cost, automation, reliability, and deep systems.

Cost Optimization

  • Delivered 25–35% yearly cloud savings via rightsizing, autoscaling, spot/RI strategy.
  • Infra cost dashboards & anomaly alerts; engineering teams see and own spend.

Automation

  • Eliminate 100+ manual tickets/month through operators, pipelines, self-service templates.
  • Shift-left security/compliance with policy-as-code & golden repos.

AI & Data

  • MSc in Deep Learning; strong statistics & mathematical foundations.
  • Python internals + PyTorch/TensorFlow; anomaly detection for SRE signals.
  • ETL/ELT: Kafka/PubSub → BigQuery/Snowflake with validation & lineage.

Deep Linux & Networking

  • System calls, cgroups, namespaces, kernel tuning; container runtime internals.
  • TCP/IP, DNS, TLS, L4/L7; pod-to-pod debugging, iptables/eBPF visibility.
  • perf, strace, tcpdump, ss - root-cause at OS/network layers.

Scale & Reliability

  • Active-active architectures, read replicas, quorum design.
  • Multi-region DR with defined RPO/RTO, automated failover & chaos drills.
  • SLOs with error budgets; 99.99%+ for critical paths.

System Design & Security

  • Design for scale: backpressure, idempotency, retries, circuit breakers.
  • Zero-trust: mTLS, strong IAM boundaries, secrets lifecycle (Vault/KMS).
  • Observability baked-in: golden signals, RED/USE, trace-driven analysis.

Mentorship

Community

  • ADPList: career coaching, SRE roadmaps, mock interviews.
  • CodeMentor: hands-on Terraform, Kubernetes, CI/CD sessions.
  • Internal guilds: brown-bags, playbooks, incident drills.

Impact

  • Reduced new-hire ramp time by ~40% with structured study tracks.
  • Authored starter kits: IaC templates, SLO cookbook, on-call runbooks.

Open Source & Research Publications

Aqua Security - Trivy

Security scanner contributions.

PR #5038 ↗

K3s - Lightweight Kubernetes

Dockerfile Optimization

PR #8244 ↗

pod-log-controller

Controller for targeted pod log tailing.

Repository ↗

AI IJCAT Research Publication

AI for Sustainable Development and Climate Action

Article Link ↗

Contact

If you’re hiring for DevOps/SRE/Platform and want pragmatic impact in the first 90 days, let’s talk.