
Vishnu Nair
Verified Expert in Engineering
DevOps Engineer and Developer
Toronto, ON, Canada
Toptal member since July 28, 2022
Vishnu is a highly skilled developer with 10+ years of experience in Linux, DevOps, big data, and cloud computing technologies. He has held several IT roles and currently serves as the technology lead at GrandVision. In the past, Vishnu held the Global Head of DevOps role at Veon, where he set up a highly available and scalable architecture for a data management platform (DMP) across 12 countries while taking responsibility for data strategy, engineering, and data governance.
Portfolio
Experience
- GitHub - 10 years
- CI/CD Pipelines - 10 years
- Kubernetes - 7 years
- Big Data - 5 years
- Docker - 5 years
- Google Cloud Platform (GCP) - 5 years
- DataHub - 4 years
Availability
Preferred Environment
Docker, Google Cloud Platform (GCP), Amazon Web Services (AWS), GitHub, CI/CD Pipelines, GitHub Actions, GitLab CI/CD, DevOps, Terraform, Azure DevOps
The most amazing...
...projects I've been involved in helped eCommerce, telecom, and banking companies in their digital transformation journeys.
Work Experience
DevOps Lead
GrandVision
- Migrated on-prem systems to Google Cloud, using GKE for container orchestration, Google Cloud Spanner for scalable databases, and Cloud SQL for relational DBs. Achieved 30% cost reduction and 40% performance boost.
- Gained experience in CI/CD pipelines with Terraform, Cloud Build, AWS CodePipeline, CircleCI, GitLab CI, GitHub Actions, and Jenkins across Azure, GCP, and AWS. Reduced deployment failures by 60% and improved release speed by 50% with automated deployments.
- Developed comprehensive security protocols and compliance measures within the Google Cloud environment, reducing security incidents by 50% and ensuring adherence to industry regulations.
- Integrated Google Cloud Armor and AWS WAF for DDOS protection, which reduced security incidents by 50% while maintaining compliance with GDPR and SOC2 regulations.
- Integrated Azure Active Directory (AAD) with role-based access control (RBAC) to centralize identity management across cloud environments. This secured sensitive workloads and improved audit compliance, reducing unauthorized access incidents by 50%.
- Designed automated workflows using Azure Logic Apps to orchestrate communication between cloud services like Azure Functions, Azure Storage, and external APIs. This improved cross-service communication and reduced manual operational tasks by 50%.
- Integrated Cloud databases and storage platforms, including Google Cloud Storage (GCS), Cloud SQL, Spanner, and Firestore, to build a resilient, scalable data infrastructure for OLAP and OLTP workloads.
Production Engineer
Yahoo! - Mail Engineering
- Helped Yahoo in migrating their on-premise services to the GCP.
- Supported Yahoo's current operations and infrastructure.
- Moved all of Yahoo's applications, codebase, platforms, and infrastructure to the cloud, optimizing it and modernizing it for future growth.
- Handled various tasks related to the Google Cloud Platform ecosystem. Built pipelines using Terraform, set up best practices, helped troubleshoot issues, conducted documentation, etc.
DevOps Tech Lead
Informa
- Maintained and managed the company's cloud infrastructure and helped them build proper high-availability CI/CD pipelines to support the product teams and reduce time to market.
- Automated infrastructure provisioning using Terraform and Ansible on AWS, GCP, and Azure, reducing manual intervention by 80% and increasing deployment speed by 60%.
- Deployed and managed containerized applications with Docker and Kubernetes, using GKE, Azure AKS, and Amazon EKS, ensuring high availability and scalability across multicloud environments.
- Designed and implemented a robust cloud network architecture on AWS using VPC, Route 53, and CloudFront for global content delivery and DNS management. This reduced latency by 25% and improved application performance across multiple regions.
- Developed and implemented a blue-green deployment strategy on GKE and Azure AKS using Istio for traffic management, enabling zero-downtime updates and seamless rollbacks, reducing downtime to virtually zero during critical deployments.
- Integrated a service mesh with Istio in a microservices environment running on GKE, providing advanced traffic control, observability, and security features, which improved application reliability and reduced incident response times by 40%.
- Automated security audits and vulnerability scanning with Amazon Inspector, Google Cloud Security Command Center, and Azure Security Center, detecting and mitigating 70% of potential security vulnerabilities before they became exploitable.
- Designed and implemented a hybrid cloud strategy using Azure Arc and Google Anthos to unify the management of on-prem and cloud environments, reducing operational complexity and improving cross-cloud governance by 35%.
Head of DevOps
EduSparrow
- Implemented full-stack observability using Datadog and Prometheus across microservices hosted on GKE and AWS Fargate. This provided real-time insights into system health and improved troubleshooting efficiency by 40%, reducing MTTR.
- Optimized the performance of cloud-hosted databases, utilizing Google Cloud Spanner and Amazon RDS for auto-scaling and fine-tuning. Achieved a 25% increase in query response times and reduced database costs by 20% with read/write split strategies.
- Implemented governance policies using Sentinel in conjunction with Terraform Enterprise to ensure compliance with organizational standards across AWS, GCP, and Azure environments. This reduced the risk of non-compliant configurations by 80%.
- Designed and managed automated ETL data pipelines using Apache Airflow on Google Cloud Composer and AWS Step Functions, resulting in a 50% improvement in data processing efficiency and the elimination of manual interventions for data workflows.
- Deployed and managed Amazon API Gateway and Google Cloud Endpoints to create unified APIs across multicloud environments. This streamlined API management, reduced latency by 20%, and improved scalability for client-facing services.
- Built and optimized CI/CD pipelines using Azure DevOps with Azure Repos and Azure Pipelines, integrating automated testing and deployment for microservices. Reduced build and deployment times by 45%, improving overall development cycle efficiency.
Head of DevOps
VEON
- Oversaw product, engineering, and science functions, powering data governance around regulatory, security, and access.
- Created the big-data product's engineering center of excellence (CoE) across the corporate business units.
- Built a central data platform to power an information-centric organization and unlock new opportunities in eCommerce for customers as they navigate the digital world.
Experience
GrandVision Customer360
https://www.grandvision.com/Education
Bachelor's Degree in Telecommunications
Pondicherry University - Puducherry, India
Certifications
Offensive Azure Security Professional
CloudBreach
ThunderDome Multi-cloud Cyber Range
Pwned Labs
Offensive AWS Security Professional
CloudBreach
Practical Junior Penetration Tester
TCM Security
Skills
Tools
GitHub, GitLab CI/CD, GitLab, Terraform, Google Compute Engine (GCE), Google Kubernetes Engine (GKE), Google Cloud Dataproc, DataHub, Apache Airflow, Amazon Elastic Container Service (ECS), AWS CloudFormation, ELK (Elastic Stack), GCP Security
Languages
Bash Script, YAML, Python, Go
Paradigms
DevOps, Azure DevOps, Penetration Testing
Platforms
Docker, Google Cloud Platform (GCP), Kubernetes, Linux, Amazon Web Services (AWS), Azure, New Relic, Apache Kafka, Microsoft
Storage
Google Cloud Spanner, Google Cloud SQL, Google Cloud Storage, Cassandra
Other
CI/CD Pipelines, GitHub Actions, Data Encryption, Cloud Storage, Google Fusion Tables, Pipelines, eCommerce, Data Enrichment, Big Data, Google BigQuery, Filestore, Cloud Penetration Test, Cloud Pentesting, Active Directory (AD), Microsoft Entra, offensive AWS, Azure and GCP, Microsoft 365, Token Abuse, Google Cloud Functions, VPC
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