whoami — cloud & ai engineer, london

Rahul
Kumar

Building infrastructure that thinks.
Lead Platform Engineer · 4x GCP Certified · CKA · AI/ML Engineering —
turning complex cloud infrastructure into elegant, scalable systems.

▶ Get in touch • View projects ↓ Resume.pdf
10+
Years Experience
4x
GCP Certified
$15k
Monthly Cost Saved
🇬🇧
London, UK
about

Who I am

I'm a Lead Platform Engineer based in London, currently at Rackspace Technology, with 10+ years building and scaling cloud infrastructure across GCP and AWS.

I lead the Internal Developer Platform (IDP) strategy — abstracting Kubernetes complexity for 6+ product teams, driving SRE adoption with SLOs and error budgets, and delivering real business impact: 25% cloud compute cost reduction ($15k/month) and environment provisioning cut from 3 days to 15 minutes.

I hold 4x Google Cloud Professional certifications (Architect, DevOps, Security, Developer), a GenAI Leader badge, and CKA. I'm actively expanding into AI/ML engineering — building agent systems with Google ADK, Gemini Flash 2.5, and Vertex AI.

Open to senior Platform Engineering, DevOps, and AI/ML Engineer roles. Remote or hybrid, London-based.

rahul@cloud-box: ~
$ cat profile.json {   "name": "Rahul Kumar",   "role": "Lead Platform Engineer",   "company": "Rackspace Technology",   "experience": "10+ years",   "certifications": "4x GCP Pro + CKA + GenAI",   "impact": [     "$15k/mo cost reduction",     "3 days → 15 min provisioning",     "95% vuln catch rate"   ],   "location": "London, UK 🇬🇧",   "status": "open_to_opportunities" } $
skills

Tech Stack

☁️
Google Cloud Platform
GKEVertex AIBigQuery Cloud RunPub/SubDataflow Cloud BuildArtifact RegistryVPC
⚙️
DevOps & CI/CD
TerraformHelmArgoCD GitHub ActionsJenkinsAnsible PackerGitLab CI
🐳
Platform & Containers
KubernetesDockerIstio KustomizePrometheusGrafana OpenTelemetryFluentd
🤖
AI/ML Engineering
Vertex AIGemini APIGoogle ADK BigQuery MLMLflowMCP Toolbox LangChainPython
🛡️
Security & Networking
CloudflareIAMSecret Manager VPC SCZero TrustRBAC mTLS
💻
Languages & Scripting
PythonBashGo HCLYAMLSQL Jinja2
experience

Work History

Lead Platform Engineer
@ Rackspace Technology
Jul 2022 — Present · London, UK
  • Architected the Internal Developer Platform (IDP), abstracting Kubernetes complexity and providing self-service infrastructure primitives for 6+ product teams.
  • Drove SRE adoption across engineering — defined SLOs and error budgets for critical transactional flows, reducing unplanned downtime significantly.
  • Cut cloud compute costs 25% ($15k/month) by optimising Kubernetes resource requests and limits across 50+ microservices.
  • Reduced environment provisioning from 3 days to 15 minutes by building a modular Terraform library for standardised VPC and GKE provisioning.
  • Achieved 95% critical vulnerability catch rate pre-deployment by integrating Cloud Security Command Center and Terrascan into CI/CD.
  • Designed automated data pipelines for Staging/Dev environment hydration with PII masking for GDPR compliance.
  • Implemented end-to-end APISIX API gateway for microservices traffic management, routing, and observability.
  • Building AI agent systems using Google ADK, Gemini Flash 2.5, Vertex AI, BigQuery, and MCP Toolbox.
Senior Cloud Engineer
@ Rackspace Technology
Apr 2020 — Jun 2022 · Gurgaon, India
  • Managed GCP environments for multiple enterprise customers, maintaining uptime and performance SLAs.
  • Built HTTP/HTTPS/TCP load balancers with backend services, SSL termination, and health checks.
  • Configured IAM roles, permissions, and security policies enforcing least-privilege access across multi-tenant environments.
  • Provisioned on-demand VMs, GKE clusters, Cloud SQL instances, and storage per customer requirements.
  • Set up VPN tunnels connecting on-premises and multi-cloud environments to GCP; maintained firewall rules and VPC configurations for network segmentation.
Project Engineer — DevOps
@ Wipro Ltd
Apr 2017 — Apr 2020 · Pune, India
  • Led transition from traditional SDLC to DevOps practices, improving deployment frequency and release reliability.
  • Configured VPC networks, subnets, firewalls, and load balancers on Google Cloud Platform.
  • Designed and maintained Hadoop infrastructure and data processing pipelines.
  • Deployed applications on App Engine for zero-downtime releases.
projects

Featured Work

🤖
↗ View
AI Agent System — Google ADK
Multi-agent orchestration system built with Google Agent Development Kit, Gemini Flash 2.5, BigQuery, and MCP Toolbox. Addresses token efficiency challenges at scale with large tool sets.
Google ADKGemini Flash BigQueryMCP ToolboxPython
🧠
↗ View
Personal Knowledge Engine
AI-powered "second brain" over saved content from Instagram, LinkedIn, and Gmail. Enables semantic search and intelligent retrieval across personal knowledge sources.
RAGVertex AI EmbeddingsPythonGmail API
📧
↗ View
Automated Daily Email Digest
Automated workflow using Make.com and the Anthropic API to generate intelligent daily email digests, summarising key content and insights from multiple sources.
Make.comAnthropic API ClaudeAutomation
🏗️
↗ GitHub
Cloudflare IaC Recovery System
Terraform-based infrastructure recovery and provisioning system for Cloudflare resources. Migrated to v5 provider schema with Jinja2 template automation for configuration generation.
TerraformCloudflare Jinja2PythonHCL
📊
↗ View
MLOps Pipeline — Vertex AI
End-to-end ML lifecycle pipeline on Vertex AI covering custom training, hyperparameter tuning, model evaluation, registry, deployment to endpoints, and continuous monitoring.
Vertex AIKubeflow Pipelines BigQueryCloud Build
⚡
↗ View
Internal Developer Platform
Self-service IDP for engineering teams — standardised golden paths for service deployment, automated environment provisioning, and integrated observability on GKE with ArgoCD and Backstage.
GKEArgoCD BackstageHelmTerraform
certifications

Credentials

🏅
Professional Cloud Architect
Google Cloud Platform
Active
🏅
Professional Cloud DevOps Engineer
Google Cloud Platform
Active
🏅
Professional Cloud Security Engineer
Google Cloud Platform
Active
🏅
Professional Cloud Developer
Google Cloud Platform
Active
🤖
Google Cloud Certified GenAI Leader
Google Cloud Platform
Active
🏅
Certified Kubernetes Administrator (CKA)
Cloud Native Computing Foundation
Active
🎯
Professional ML Engineer
Google Cloud Platform
In Progress
contact

Get in Touch

Let's build something together.

I'm open to senior DevOps, Platform Engineering, and AI/ML Engineer roles, as well as consulting engagements and interesting collaborations. Based in London — remote or hybrid.

✉ rahul@kumarcodes.dev in linkedin.com/in/rahulkumar180 ⌥ github.com/rahulracker7539 📄 Download Resume
new_message.sh