Nishant Sahu

Nishant Sahu Sr. DevOps Engineer -- Gurgaon, India linkedin.com/in/nishant-sahu/ Summary Senior DevOps Engineer with 10+ years of experience in automating, optimizing, and managing complex infrastructure for fastpaced, high-growth environments. Expert in change and release management, AWS cloud migrations and guiding/mentoring a team of 2-4 junior engineers. Proficient in cloud platforms (AWS, Azure, GCP), CI/CD pipelines, containerization (Docker, Kubernetes), and infrastructure as code (Terraform, Ansible). Strong background in system administration, scripting, and performance monitoring. Proven track record in driving efficiency, enhancing security, and facilitating seamless development-to-production workflows. Have immense exposure on different Migration projects like E commerce, Retail, Media news agency, Hospital information systems, Travel agency and Healthcare. Technical Skills CI/CD : GitLab CI/CD, Jenkins IAC & Automation : Terraform, Ansible, Rundeck Logging : Splunk and ELK (Setup and Administration) Monitoring : Zabbix, New Relic, Dynatrace, Prometheus, Grafana Cloud Technologies : AWS, Microsoft Azure, Alibaba Cloud, Docker, Kubernetes Language : Bash Scripting, Basic Python Other DevOps tools : Jira, Confluence, Slack, PagerDuty, SonarQube Work Experience Ticketmaster India, Gurugram Oct 2021 - Present Senior DevOps Engineer • • • • • Worked on migration of GitLab architecture from a single-tier to a multi-tier setup using Terraform and Docker, effectively leveraging AWS services such as EC2, RDS, and S3 for infrastructure automation. This transformation enabled seamless scaling, improved system resilience, and ensured zero downtime during major and minor version upgrades. Additionally, implemented an active-passive disaster recovery (DR) strategy for high availability, significantly enhancing the platform's fault tolerance and ensuring business continuity. Led Major and Minor Splunk Cluster Upgrades: Successfully spearheaded the major and minor version upgrades of an onpremises Splunk cluster, ensuring minimal downtime and seamless integration with existing infrastructure. Automated Configuration Management with Ansible: Designed and implemented a robust system using Ansible for managing all configuration changes to the Splunk cluster. This automation ensured consistency, reduced human error, and significantly improved deployment speed and reliability. Splunk Cluster Expansion: Played a pivotal role in the expansion of the Splunk cluster, scaling the environment to meet increased data ingestion and processing demands, while optimizing performance and maintaining high availability. Worked on tuning sideqick configuration GitLab instance in case of too many requests. These optimizations were crucial in ensuring that the GitLab instance remained operational and did not go down, when queues reached full capacity under heavy load conditions. Day to Day Operational Task. • • • Maintain, upgrade, and support a diverse suite of DevOps tools, including GitLab, Splunk, Rundeck, Prometheus, Nexus, and SonarQube, across both on-premises and AWS environments. Collaborate with development teams to automate deployment processes, providing expertise in writing and optimizing GitLab CI pipelines (gitlab-ci.yml). Troubleshoot and resolve GitLab pipeline and runner issues, ensuring smooth CI/CD workflows for the team. • • • • • Streamline log management by onboarding various sources to Splunk, resolving access and permission issues, and assisting teams in creating dashboards and setting up alerts with integrations to Slack for enhanced monitoring. Operate within an agile framework, actively participating in sprint planning, milestone creation, and tracking epics and stories to drive project progress. Play a critical role in incident response, diagnosing and resolving high-priority issues in a timely manner. Author and update Standard Operating Procedures (SOPs) and knowledge base documentation in Confluence, ensuring the team has clear and current guidelines to follow. Partner with the security team to enhance event detection and incident response strategies, leveraging Kubernetes for automated rollbacks and ensuring system resilience. Coforge Limited, Greater Noida (Erst While NIIT Technologies) Dec 2019 - Sep 2021 Technical Analyst Cloud • • • • • Architected and designed secure, reliable, and fault-tolerant environments on AWS and Azure, utilizing Terraform for infrastructure as code to automate deployment processes. Assisted customers in seamless migration from on-premise infrastructure to cloud environments, implementing Docker for workload containerization, leading to reduced migration time and improved portability. Provided innovative cloud solutions in response to client RFPs during digital transformation initiatives, incorporating Kubernetes for scalable and manageable deployments. Educated customers on AWS and Azure value propositions, actively participating in architectural discussions to drive successful cloud development projects. Presented cloud-based technical solutions to senior leadership and mentored teams in modern cloud platforms, emphasizing the benefits of containerization and orchestration technologies like Docker and Kubernetes. One97 Communication (Paytm), Noida July 2019 - Oct 2019 Senior DevOps Engineer • • • Managed operations and maintenance for Ant Financial Cloud, ensuring stability across SAAS, PAAS, and IAAS layers on the payment platform (network, IDC, NTP, DNS, YUM, ECS, OS, SLB, OSS, AFS, DB, Middleware). Conducted SAAS operations, including capacity management, application releases, and machine failure resolution. Implemented PAAS and IAAS fault detection and emergency response. Built high-availability systems with automatic fault location, recovery, and adaptive disaster recovery to ensure continuous business availability. BluePi Consulting, Gurugram May 2017 - May 2019 Senior Cloud Administrator (Migration) • • • • • • • • Successfully completed 12 migration projects to AWS and Alibaba cloud for different customers like retail, E-commerce, Media and news, Food chain, and Insurance company. Conducted 6 AWS Well Architected Review for different customers and optimized infrastructure to save up to $2000 per month. Implemented AWS WAF, Advanced shield and Guard-duty with custom monitoring dashboard for a food chain customer. Optimized AWS infrastructure for news site to serve 2 million users request on the election result day. Designed and implemented video trans-coding and video delivery platform for one of the news channel. Designed MySQL Master-Master replication for one of the customer. Successfully completed POC for one of the online payment POS systems. Successfully implemented PCIDSS compliant infrastructure for one of the Food-retail customer. Other Responsibilities • • • • • Gathered and analysed user requirements to design scalable, resilient IT environments, working closely with partners and the sales team. Designed network architecture and workflows for AWS Cloud, including migration strategies for moving infrastructure and data from on-premises to AWS. Developed and implemented solutions for data retention, access policies, and secure connectivity between on-premises systems and the cloud. Conducted cost, gap, and feasibility analyses for cloud migration, and created comprehensive migration plans, including SOPs and status reports for clients. Implemented cloud monitoring and notification processes using tools like AWS CloudWatch and SNS. Yamaha Motor Solution India Pvt Ltd. System Engineer Aug 2014 - May 2017 I was here responsible for complete monitoring configuration setup using Zabbix, Proactive and preventive Monitoring of the Servers, Networks and Applications with tasks of parameter analysis, SLA Management, Incident Management, and Problem Management. Education CDAC, Noida (Centre for Development of Advanced Computing) PGDITISS (Post Graduate Diploma in IT Infra, System and Security Aug 2013 - Feb 2014 Indore Institute Of Science & Technology (IIST, Indore) Bachelor Of Engineering in Electronic and Communication Engineering June 2009 - June 2013 Certifications • • • • • ITIL V3 Foundation RHCE AWS SYSOPS ASSOCIATE AWS DEVOPS PROFFESSIONAL ALIBABA CLOUD PROFFESIONAL Awards And Recognition • • YAMAHA Monthly Performance Recognition. Awarded "Employee of the Quarter" - twice during critical deliveries at Ticketmaster.