// Senior Site Reliability EngineerVamsi Krishna Samboju
Senior SRE · DevOps Engineering Lead · Cloud & Platform Engineering
12+ years in IT · 7+ years in DevOps, cloud infrastructure, and site reliability, including engineering leadership. I build and operate cloud infrastructure across AWS, GCP, and Azure — Kubernetes clusters, Terraform-driven IaC, and CI/CD pipelines — with a focus on observability and incident response that keeps production systems reliable at scale.
Case studies
Deep technical write-ups on real infrastructure problems — architecture decisions, trade-offs, and lessons from production.
AWS IoT / Cloud Platform Architecture
Designing and operating a cloud platform for industrial IoT devices — connecting edge hardware to cloud-native processing, storage, and analytics pipelines on AWS.
AWSIoT CoreKinesisTerraformKubernetesInfluxDBPlatform EngineeringRead case studyAutomating Containerized AWS Lambda Deployments for Data Analytics
Automated delivery of containerized AWS Lambda analytics workloads using Terraform, Python, Docker, and ECR, enabling a Data Analytics team to deploy through its Git workflow.
AWS LambdaTerraformDockerAmazon ECRAmazon KinesisS3DynamoDBCI/CDRead case studyInvestigating a Production Failure Caused by Excessive Database Calls
An on-call weekend incident at Visa where new deployment code triggered excessive database calls under load. I investigated using logs and AppDynamics, shifted traffic to a healthy data center, and coordinated a rollback to restore service.
SREIncident ResponseAppDynamicsSplunkOn-CallRCATraffic ManagementRead case studyAutomating AWS AMI Creation for Linux and Windows Build Environments
A suite of public infrastructure-as-code projects that automate the creation of hardened, validated AWS AMIs for Linux build servers, Windows web servers, and Windows SQL servers using Packer, Ansible, and InSpec.
PackerAnsibleInSpecAWS AMIAzure DevOpsWindowsLinuxIaCRead case study- More coming
Additional case studies covering CI/CD pipelines, Kubernetes operations, observability, and SRE automation are in progress.
// Each case study covers
Professional history
12+ years in technology with 7+ years focused on DevOps, cloud infrastructure, and site reliability engineering.
Senior Site Reliability Engineer
Senior · LeadCurrentVisa Technology and Operations LLC
Feb 2025 – PresentAustin, United States · On-siteSenior SRE on Visa Developer Platform (VDP) Operations Team, ensuring 24/7 availability and resilience of Visa's global transaction systems supporting trillions in payments across 200+ countries.
- Managed Mirantis Kubernetes clusters across multiple global regions — deployments, release validations, patching, and incident troubleshooting.
- Automated complex deployment workflows using Ansible Tower, generating YAML check-in files and managing change requests across Visa's internal tooling.
- Led on-call operations using Splunk dashboards and Grafana to monitor metrics, investigate incidents, and remediate issues while maintaining SLA adherence.
Kubernetes (Mirantis)Ansible TowerSplunkGrafanaSpring BootNGINXPKI / Certificate ManagementPythonBashLinuxDevOps Engineer Lead
Senior · LeadFNR Solutions
Aug 2024 – Jan 2025Plano, USA · RemoteDevOps Lead architecting and automating AWS infrastructure, CI/CD pipelines, and container platforms for client environments.
- Architected and automated AWS services including EC2, RDS, S3, ElasticCache, Route53, SQS, IAM, Secrets Manager, WAF, API Gateway, ECR, ElasticSearch, and Lambda.
- Implemented Infrastructure as Code using Terraform, Packer, Ansible, and InSpec.
- Designed AWS network architecture — VPN, IGW, WAF, Subnets, Route Tables, NAT Gateways, VPC peering, and VPC endpoints across multiple AZs.
AWSTerraformPackerAnsibleInSpecDockerKubernetesAWS ECRAWS CodePipelinePythonPowerShellLinuxDevOps Engineer Lead
Senior · LeadCleaver Brooks
Aug 2022 – Sep 2023Milwaukee, USA · On-siteDevOps Lead architecting and operating AWS cloud infrastructure for the Prometha IoT web application, including IoT data pipelines, containers, CI/CD, and observability.
- Architected AWS services for the Prometha IoT platform — EC2, RDS, S3, ElasticCache, CloudFront, IoT Core, Kinesis Streams, Lambda — automated with Terraform, Packer, Ansible, and InSpec.
- Designed and implemented AWS IoT Core to stream IoT data into Kinesis Streams for real-time industrial data ingestion.
- Created and maintained IoT databases — InfluxDB for time series data, MongoDB for analytical data, MySQL for IoT asset data.
AWSAWS IoT CoreTerraformPackerAnsibleInSpecKubernetesAWS EKSDockerInfluxDBMongoDBMySQLKinesis StreamsGrafanaCloudWatchDevOps Engineer
Dealer-FX
Mar 2020 – Jun 2022Toronto, Canada · On-siteDevOps Engineer maintaining and automating multi-cloud AWS and Azure infrastructure, CI/CD pipelines, and container platforms for the Dealer-FX web platform.
- Automated and maintained AWS services (EC2, RDS, S3, Route53, CloudFront, IAM, WAF, ECR, Lambda) using Terraform, Ansible, Packer, and InSpec.
- Developed and maintained multi-cloud environments across AWS and Azure.
- Automated CI/CD using Azure DevOps for on-premises and multi-cloud deployments.
AWSAzureTerraformAnsiblePackerDockerKubernetesAzure DevOpsRabbitMQSonarQubeJFrogPowerShellLinuxDevOps and Systems Engineer
Crescendo Technology
Aug 2017 – Sep 2019Toronto, Canada · On-siteLed AWS cloud migration from on-premises and built CI/CD, automation, and monitoring foundations.
- Migrated the company's on-premises infrastructure to AWS.
- Automated AWS services (EC2, ASG, VPC, VPN, Route53, WAF, IAM, RDS, ELB) using Terraform.
- Developed and maintained CI/CD processes using Jenkins.
AWSTerraformJenkinsAnsiblePackerSonarQubeVeracodeJFrogLinuxPython
Technical stack
Organized by engineering domain — the tools I use in production, not every technology I have touched.
Cloud Infrastructure
Primary cloud platforms for infrastructure delivery at scale.
AWS Services
Core AWS services used in production across compute, storage, networking, and security.
Infrastructure as Code
Declarative tooling for provisioning and managing infrastructure.
Containers & Orchestration
Container runtimes, orchestration platforms, and image management.
CI/CD Pipelines
Pipelines and release automation across cloud and on-premises environments.
Monitoring & Observability
Logging, metrics, alerting, and on-call tooling across distributed systems.
Networking & Security
Network architecture, security controls, and VPN across multi-cloud and on-premises.
OS & Virtualization
Operating systems and virtualization platforms managed in production.
Languages & Scripting
Languages used for automation, tooling, and infrastructure engineering.
Databases & Messaging
Relational, NoSQL, time-series, and messaging systems operated in production.
DevOps Tools
Supporting tools for artifact management, backup, cost optimization, and configuration.
// Primary cloud: AWS · Secondary: GCP, Azure
Awards
Recognition received from employers and academic institutions for performance and contribution.
Execute with Excellence & Collaborate as One Visa Award
2025Visa Technology and Operations LLC
Recognized by project managers and team members for proactively managing Kubernetes deployments, troubleshooting, and certificate updates for Visa's VSP (Visa Stablecoin Platform) crypto currency project.
Execute with Excellence & Collaborate as One Visa Award
2025Visa Technology and Operations LLC
Recognized for proactive code deployments, troubleshooting, maintaining encryption and decryption of infrastructure keys, and efficiently working with multiple teams across time zones.
Achievers Award
2015CIBC (Canadian Imperial Bank of Commerce)
Received for executing projects with excellence across multiple test environments.
Achievers Award
2014CIBC (Canadian Imperial Bank of Commerce)
Recognized for proactively creating impactful documentation on infrastructure systems, enhancing team efficiency across multiple test environments.
Dean's List
2014Georgian College of Applied Arts and Technology
Graduated with honors, scoring above 80% in grades every semester throughout the program.
Certification Courses
Industry certifications and continuing education in cloud, platform engineering, and leadership.
AWS Certified DevOps Engineer Professional
Foundations of Leadership and Team Management
Education
Formal academic background in computer science and networking.
Post Secondary Education — Computer System Technician and Networking
Jan 2013 – Dec 2014Georgian College of Applied Arts and Technology
Barrie, Ontario, Canada
Dean's List — graduated with honors
Bachelor of Engineering — Computer Science and Engineering
Jun 2006 – Jun 2010Nimra College of Engineering and Technology
Vijayawada, India
Let's talk infrastructure.
I am open to Senior SRE, DevOps Lead, Platform Engineer, and Staff-level infrastructure opportunities. Recruiters, engineering managers, and technical leaders — feel free to reach out.
Response time is typically within a few business days.