Dynamic Senior Site Reliability Engineer with a proven track record at Walmart Advanced Systems & Robotics, enhancing CI/CD pipelines to boost deployment speed by 50%. Skilled in infrastructure automation and effective communication, I excel in mentoring teams and optimizing observability tools to drive operational excellence and security.
Overview
13
13
years of professional experience
Work History
Senior Site Reliability Engineer
Walmart Advanced Systems & Robotics
Andover
04.2021 - 06.2025
Joined as the first DevOps/SRE hire and built the foundational infrastructure from the ground up to support over 200 nodes.
Successfully maintained role continuity and technical contributions through two major acquisitions, moving from Alert Innovation to Walmart and eventually Symbotic.
Re-engineered CI/CD pipelines using Jenkins and GitLab, resulting in a 50% increase in deployment speed.
Managed the full observability stack (Grafana, Telegraf, InfluxDB) and core infrastructure tools like Puppet and Ansible.
Reduced overhead and redundant tooling by consolidating production access systems and integrating session recording for better security auditing.
Orchestrated containerized workloads and managed cloud architecture using Azure, Kubernetes, and Terraform.
Mentored junior SREs to mid-level proficiency and led the transition of pipeline ownership to product teams to improve developer autonomy.
Developed specialized SRE tools in Python and Bash to streamline onsite troubleshooting and minimize system downtime.
Senior Technical Support Engineer
ReversingLabs
Cambridge
08.2018 - 04.2021
Led implementation and technical support for enterprise clients, including Fortune 500 companies, to ensure the successful deployment of the Titanium Platform within their existing security frameworks.
Developed custom integration scripts in Python and Bash to optimize data pipelines and streamline threat detection processes.
Collaborated directly with clients to architect and optimize security workflows, tailoring solutions to meet specific operational requirements and minimize downtime.
Provided expert consultation on integrating security solutions via APIs, enhancing the overall security posture and interoperability of client systems.
Diagnosed and resolved complex issues within Linux-based security appliances, performing system tuning to ensure high reliability in mission-critical environments.
Partnered with sales teams to conduct proof-of-concept (POC) demonstrations, showcasing threat intelligence capabilities through tailored presentations for prospective clients.
Optimized the processing of high-volume data to ensure scalability and reliability in threat detection workflows, enabling clients to mitigate threats more accurately.
Mission Developer (Security/DevOps)
Circadence
Greater Boston Area
05.2017 - 04.2018
Designed and developed realistic cyber range missions for an e-learning platform to train engineers in both offensive (red team) and defensive (blue team) operations.
Created complex virtual environments where users practiced essential security tasks, including vulnerability scanning, incident response, and penetration testing.
Built automated scoring systems by developing log-parsing scripts and using event tracking to measure task completion and user performance.
Utilized tools such as Splunk, Wireshark, Snort, and Metasploit to monitor mission activities and provide users with data-driven feedback.
Automated the deployment of training environments across multiple missions using SaltStack to ensure consistency and scalability.
Partnered with a four-person engineering team to translate complex job requirements into hands-on technical scenarios and integrated scoring mechanisms into the platform.
Security Engineer
Aspect Software
Greater Boston
08.2015 - 11.2016
Orchestrated enterprise-level vulnerability scanning and assessment using industry-standard tools like Qualys, Burp Suite, and OWASP ZAP to proactively identify and mitigate security risks.
Developed custom Python and PowerShell scripts to automate complex security workflows, reducing manual reporting effort by 70% and increasing overall team efficiency.
Managed and automated critical compliance processes for PCI, HIPAA, and NIST frameworks, ensuring all systems remained audit-ready in highly regulated environments.
Integrated security scanning directly into CI/CD pipelines using OWASP Dependency Track to catch vulnerabilities early in the software development lifecycle.
Implemented Selenium-based security testing to automate the validation of web application defenses and ensure consistent security posture across updates.
Built automated reporting systems that provided stakeholders with real-time visibility into the organization's vulnerability landscape and compliance status.
System Administrator
The Charlton Group, Inc.
Greater Boston
12.2014 - 07.2015
Administered Windows Server 2008 and 2012 environments, managing Active Directory, Exchange 2010, and Group Policy Objects (GPO).
Streamlined software management by automating the deployment of packages and maintaining office-wide hardware and software tracking using PDQ Deploy and PDQ Inventory.
Successfully implemented OpenDLP at a healthcare institution to ensure strict adherence to HIPAA compliance standards.
Provided high-level technical support and consultation tailored to the unique regulatory and operational needs of financial firms and healthcare organizations.
Acted as a primary client-interfacing technician, delivering direct user support and resolving complex technical issues with a focus on clear communication.
Network Engineer
Tech Group
South Burlington
12.2012 - 11.2014
Engineered and deployed robust network solutions, including the configuration and installation of Dell SonicWall firewalls and diverse wireless systems such as Aruba, Cisco, and SonicPoint.
Managed Windows Server environments and Exchange servers for small to medium-sized businesses, ensuring high availability and seamless communication.
Leveraged the Kaseya RMM platform to oversee daily operations and maintain system health for 50+ diverse client environments.
Administered and supported a wide range of cloud-based solutions, including Microsoft Office 365, Intermedia, and Carbonite backup services.
Provided dedicated technical support through both remote troubleshooting and on-site consultations to ensure rapid resolution of complex client issues.
Supported and managed comprehensive antivirus and endpoint protection suites, including Vipre Business, Kaspersky, and Norton, to safeguard client data.
Configured and maintained Barracuda anti-spam and firewall systems to mitigate external threats and ensure secure mail flow.
Collaborated on the design and rollout of new network infrastructures, modernizing client systems for better performance and scalability.
IT Administrator (Seasonal Position)
Basin Harbor Club
Vergennes
05.2012 - 11.2012
Provided comprehensive 24/7 technical support for 300 cottages across a 400-acre campus, managing IT services for both guests and administrative staff.
Maintained cottage connectivity by managing wireless access points deployed over DSL lines and performing physical layer maintenance on phone systems using punch-down blocks.
Administered and maintained Windows Server 2000 and 2003 environments to ensure the stability of core business services.
Managed application delivery using Citrix ICA, deploying virtualized programs to thin-client terminals to streamline user workflows.
Provided dedicated 24/7 on-call support during peak operational months (May-October), ensuring rapid resolution of mission-critical issues.
Education
Bachelor of Science - Computer Networking & Information Security
Champlain College
Burlington
05-2012
High School Diploma - Liberal Arts and Sciences/Liberal Studies
Commissioning/Operation Engineer at Walmart Advanced Systems & Robotics (Contract through Apex Systems LLC)Commissioning/Operation Engineer at Walmart Advanced Systems & Robotics (Contract through Apex Systems LLC)
Senior Site Reliability Engineer at Alert Innovation / Walmart Advanced Systems & Robotics / SymboticSenior Site Reliability Engineer at Alert Innovation / Walmart Advanced Systems & Robotics / Symbotic