Arnav Ranjan

Site Reliability / Platform Engineer with 4.7+ years operating production systems on Kubernetes and cloud, combining an operations mindset with hands-on engineering in Go and Python. Embedded as primary platform engineer on a US-based product team, owning reliability for 80+ microservices — building observability (Grafana, Prometheus, PromQL), SLO/error-budget-aware alerting, GitOps delivery (ArgoCD, Kustomize) and infrastructure-as-code from scratch (Terraform modules, a Go Kubernetes admission controller). Strong on incident response, RCA and safe change delivery through CI/CD.

CKA, AWS CloudOps, AZ-400, AZ-104 and Terraform Associate certified.

DevOps Engineer II at Synoptek (2025-07 – Present)

• Supported production on-call, incident response, RCA and post-incident reviews; authored PromQL/KQL alerting strategies and shifted monitoring toward SLO/error-budget-aware reliability practices.
• Led multi-region AWS DR and migration planning for 33+ serverless workloads across Lambda, SQS/SNS, EventBridge, API Gateway, Redshift and VPC networking; re-architected us-east-1 workloads into us-west-2 with RTO/RPO targets and Terraformer-to-module conversion using Python/Bash.
• Implemented DevSecOps controls with GitHub Advanced Security, SonarCloud and Microsoft Defender for Cloud, adding secret scanning, dependency/code scanning, PR quality gates and runtime posture visibility into delivery workflows.
• Built hybrid/on-prem CI/CD integration using Azure DevOps deployment groups, self-hosted agents and On-Premises Data Gateway for Logic Apps; secured application configuration with Azure App Registration, Key Vault and RBAC.
• Designed enterprise desktop virtualisation using Amazon WorkSpaces, Microsoft Entra ID, AWS Managed Microsoft AD, OU/GPO controls, FSLogix profile containers on FSx and DR configuration.

Cloud Engineer I at Synoptek (2023-08 – 2025-07)

Served as primary platform engineer embedded with a US-based product innovation team, modernising infrastructure and deployment practices across 80+.NET microservices in development, UAT and production.

• Migrated classic Azure DevOps pipelines to YAML with Docker semantic versioning, Git-based triggers, SonarQube quality gates and centralised Helm charts, standardising releases across environments.
• Built Grafana dashboards for 4xx/5xx, CPU/memory, publishing frequency and liveness probes; established integrity-monitoring baselines that improved detection of silent service failures.
• Designed Azure-to-Azure DR using ASR for 12 production VMs (domain controllers, DNS, network/file servers, SQL) across East US to West US; configured hourly SQL Server RPO, weekly test failovers, DNS/host cutover validation and LogicMonitor health alerts.
• Led Terraform refactoring and migration to Azure Bicep; built reusable modules for resource groups, RBAC, Application Gateway/WAF, tagging, Azure Policy and sandbox budget/purge automation.
• Deployed Innovatrics DIS on AWS ECS Fargate with ECR, ElastiCache Redis, EFS-mounted configs, Route 53 and private ALB; debugged container startup via CloudWatch logs, shell access and curl validation before refactoring into Terraform.

System Engineer I at Synoptek (2022-08 – 2023-07)

• Designed and deployed production-ready Azure infrastructure using modular Terraform: AKS, App Gateway + WAF, VNet/subnets, CDN, Load Balancer, NSGs and RBAC policies for a new client environment.
• Designed secure offshore vendor access using Azure VPN Gateway and OpenVPN with SSL authentication, VM cloning, certificate coordination and end-to-end connection validation.
• Conducted CIS benchmark assessments, documented secure configurations and remediated security gaps for audit readiness; maintained SLA compliance while managing cloud cost reports, orphaned resources and right-sizing.

Associate Cloud Engineer at Synoptek (2022-01 – 2022-07)

• Supported cloud operations through ticket resolution, SLA tracking and client support across multiple environments; created and maintained infrastructure documentation, cost-reporting artefacts and onboarding notes.

Bachelor of Technology in Computer Science (DevOps Specialization) – University of Petroleum and Energy Studies (2018 – 2022)