I keep mission-critical
systems running.
Sreejith Sreedharan Nair — Senior SRE & DevOps Architect with 10+ years architecting, deploying and supporting mission-critical infrastructure on Google Cloud. Expert in Kubernetes (GKE), GitOps, and large-scale infrastructure-as-code.
Capabilities
The systems I architect and operate day to day — proven at enterprise scale.
Cloud Platforms
expertArchitecting and operating mission-critical infrastructure on Google Cloud, with hands-on depth across AWS and Azure.
Containers & Orchestration
99.99%Large-scale GKE clusters with HPA/VPA and Spot provisioning — zero-downtime rollouts across 80+ microservices.
Infrastructure as Code
99.95%Regional cloud infrastructure provisioned as reviewable, repeatable code — version-controlled by default.
CI/CD & GitOps
99.97%GitOps delivery with Bitbucket and ArgoCD that cut deployment lead time from 40 minutes to under 10.
Monitoring & Observability
99.96%SLIs, SLOs and error budgets backed by dashboards — cutting mean time to detection by 30%.
Data & Messaging
99.90%Event-driven pipelines for real-time ingestion into BigQuery, reducing data latency by 20%.
Experience
A changelog of where I've shipped reliability — most recent at the top.
Infosys Canada — Calgary, AB
- Architected regional GCP infrastructure with Terraform, supporting 80+ microservices at 99.99% uptime.
- Managed large-scale GKE clusters with HPA/VPA and Spot provisioning — a 25% reduction in compute overhead.
- Pioneered the GitOps shift with Bitbucket and ArgoCD, cutting deployment lead time from 40 min to under 10.
- Built event-driven pipelines on Pub/Sub and Dataflow into BigQuery, reducing data latency by 20%.
- Led P1/P2 incident response; established SLIs/SLOs/error budgets and reduced MTTD by 30%.
Infosys India — Bengaluru
- Drove GCP cost optimization on a major retail inventory system, saving $15k+ monthly.
- Automated data workflows with Jenkins, Pub/Sub, Dataflow and shell scripting — 35% better batch efficiency.
- Provided 24/7 production support for mission-critical retail workloads through peak seasonal traffic.
Tata Consultancy Services — Kochi
- Automated full-stack AWS provisioning with Terraform — environment spin-up from 2 days to 1 hour.
- Built AWS Lambda functions for cross-account data movement, handling 1TB+ monthly traffic.
- Enforced CIS benchmarks across EC2 and VPC with IAM, WAF and SSL/TLS management.
- Led migration of deployment pipelines from Travis CI to AWS CodePipeline with end-to-end IaC.
Muthayammal Engineering College — Tamil Nadu
Bachelor of Engineering, graduated May 2013.
How I work
Two convictions that shape every system I build.
The vibe coding advantage
I treat LLMs and AI tools as core to my workflow — prototyping infrastructure at high velocity, automating the heavy lifting of documentation, and debugging complex system issues in record time, without compromising architectural integrity.
"If it isn't code, it doesn't exist"
A firm believer in immutable infrastructure and security-by-design. Every environment is version-controlled and observable — so the team can focus on building features instead of fixing the same issues twice.
Let's talk reliability.
Open to senior SRE, platform engineering, and cloud infrastructure architect roles. Happy to talk Kubernetes, GitOps, and reliability at scale.