Suresh Parajuli
White Plains,MD
Summary
Senior DevOps/SRE Engineer With over 15 years of experience in IT,
specializing in DevOps, Linux system administration, and automation, I bring extensive expertise in supporting
production applications and optimizing infrastructure. Proficient in scripting languages Perl, Python, BASH, Ansible), and experienced with cloud environments AWS, GCP, Azure), I excel in diagnosing and resolving complex issues, performing system monitoring, and ensuring high availability and performance.
Overview
13
13
years of professional experience
1
1
Certification
Work History
Senior DevOps Engineer/SRE
United States Patent and Trademark Office (SAIC Contract)
04.2019 - Current
- Ensured availability, reliability, and performance of mission-critical cloud and on-prem applications, maintaining strict SLOs, SLIs, and SLAs.
- Built automated incident response systems and runbooks using Python, Bash, and Ansible, significantly reducing MTTR.
- Managed Kubernetes/EKS clusters, including cluster upgrades, workload scheduling, autoscaling, and troubleshooting complex networking issues.
- Administered large-scale Linux server fleets, including capacity planning, kernel tuning, storage management, and HA clustering.
- Designed and implemented robust monitoring, alerting, and logging frameworks using Prometheus, Grafana, ELK, CloudWatch, and Splunk.
- Automated failover, backup, and disaster recovery processes for both cloud and datacenter environments.
- Built self-healing infrastructure using event-driven automation tools such as Terraform, Ansible, Lambda, and AWS Systems Manager.
- Performed deep root cause analysis (RCA), developed corrective action plans, and implemented long-term reliability improvements.
- Supported WildFly/JBoss, Apache, Nginx, and Java application servers, including clustering, performance tuning, and automated deployments.
- Implemented and maintained load balancing, DNS routing (Route 53), VPC networking, and secure connectivity across hybrid cloud environments.
- Collaborated with security teams to implement DevSecOps, vulnerability management, and zero-trust access controls.
- Enhanced operational excellence by creating documentation, dashboards, SOPs, and improving engineering on-boarding.
- Provided 24/7 on-call support for high-priority production systems and responded to major outages with strong leadership and communication
Principal Solution Architect
United States Patent and Trademark Office ( Keylogic Contract)
06.2015 - 04.2019
- Led end-to-end design and implementation of scalable CI/CD pipelines using Jenkins, GitHub Actions, and GitLab CI, enabling automated build, test, security scanning, and multi-environment deployments.
- Architected and managed hybrid cloud infrastructure across AWS and on-prem datacenters, ensuring high availability, cost optimization, and consistent environments.
- Automated provisioning and configuration using Terraform, Ansible, Puppet, and CloudFormation, enabling infrastructure-as-code and repeatable deployments.
- Implemented modern deployment patterns such as blue-green, canary releases, and rolling updates for microservices and enterprise applications.
- Built secure containerized ecosystems using Docker, ECS Fargate, and Kubernetes/EKS, including cluster architecture, node management, pod autoscaling, and networking.
- Optimized Linux (RHEL/CentOS/Ubuntu) server performance, automated patching, and implemented system hardening for compliance and security.
- Integrated ServiceNow with deployment workflows for automated CMDB updates, change management approvals, and incident tracking.
- Developed advanced Bash, Python, and Ansible automation scripts to streamline operations and eliminate repetitive tasks.
- Designed and configured load balancers (ALB, NLB, HAProxy) and ensured application resilience through auto-scaling and multi-AZ architecture.
- Worked closely with application architects to modernize legacy monolithic applications into highly scalable and cloud-ready platforms.
- Implemented observability using Prometheus, Grafana, CloudWatch, ELK, and OpenTelemetry, improving real-time monitoring and incident response efficiency.
- Mentored DevOps engineers, established best practices, and drove adoption of GitOps, IaC, and DevSecOps methodologies
Platform Automation Engineer/Middleware Administrator
Whole Foods Market Inc
04.2013 - 07.2015
- Installed, configured, and administered Linux servers (RHEL, CentOS, Ubuntu), including user management, security hardening, patching, storage, and performance tuning.
- Managed application servers such as JBoss/WildFly, Tomcat, Apache HTTPD, and Nginx, including deployments, clustering, tuning, and troubleshooting.
- Performed middleware administration for Java-based enterprise applications, ensuring high availability, load balancing, and smooth application lifecycle management.
- Automated routine tasks using Bash, Python, Ansible, including server provisioning, patching, application deployments, and system monitoring scripts.
- Configured and supported JBoss/WildFly domain mode, data sources, JMS, modules, SSL certificates, and environment-specific configurations.
- Troubleshot complex OS, network, and middleware issues involving memory leaks, thread bottlenecks, heap tuning, and application performance.
- Managed version control and deployments using Git, Jenkins, Maven, and automated CI/CD workflows for middleware applications.
- Implemented high availability and load balancing solutions using HAProxy, Apache, Nginx, and AWS ALB/NLB when operating in hybrid environments.
- Monitored system health and performance using ELK, Grafana, Prometheus, Nagios, Splunk, and CloudWatch, creating alerts and dashboards for proactive issue detection.
- Managed SSL/TLS certificates, keystores, truststores, and enforced secure application communication across environments.
- Performed environment setup, including DEV/QA/UAT/PROD, configuration management, and application migration across servers.
- Integrated middleware services with databases (Oracle, MySQL, PostgreSQL) and configured connection pools, JDBC drivers, and tuning parameters.
- Supported disaster recovery planning, backup/restore automation, and replication processes for critical middleware components.
- Maintained detailed documentation, runbooks, SOPs, and change records following ITIL & ServiceNow processes.
- Provided on-call support, root cause analysis (RCA), performance optimization, and coordination with development and infrastructure teams.
Education
Master of Science - Information Technology
Wilmington University
New Castle, DE12-2020
Bachelor of Science - Computer Science
Virginia International University
Fairfax, VA04-2015
Skills
Cloud: AWS (EC2, VPC, IAM, S3, RDS, Route 53, CloudWatch, ALB/NLB, ECS, EKS)
DevOps & CI/CD: Jenkins, GitHub Actions, GitLab CI, Maven, Nexus/Artifactory
IaC & Automation: Terraform, Ansible, Puppet, CloudFormation
Containers: Docker, Kubernetes, EKS, ECS, Helm
Scripting: Bash, Python, YAML, Groovy
Linux & Middleware: RHEL/CentOS, Ubuntu, JBoss/WildFly, Tomcat, Apache, Nginx
Networking: Load Balancers, DNS, SSL/TLS, Firewalls, VPC/Subnets
Monitoring & Logging: Prometheus, Grafana, CloudWatch, ELK Stack, Splunk
Version Control & Tools: Git, GitHub, GitLab, Bitbucket, Jira, Confluence
ITSM: ServiceNow (Incident, Change, Problem)
Certification
AWS Certified DevOps Engineer - Professional
AWS Certified Developer - Associate
AWS Certified Cloud Practitioner
Timeline
Senior DevOps Engineer/SRE
United States Patent and Trademark Office (SAIC Contract)
04.2019 - Current
Principal Solution Architect
United States Patent and Trademark Office ( Keylogic Contract)
06.2015 - 04.2019
Platform Automation Engineer/Middleware Administrator
Whole Foods Market Inc
04.2013 - 07.2015
Master of Science - Information Technology
Wilmington University
Bachelor of Science - Computer Science
Virginia International University