Sr DevOps Engineer

United States

Herndon, Virginia, United States

Python

Overview

L2T is seeking a highly skilled Senior DevOps Engineer to lead the design, implementation, and optimization of secure, scalable, and resilient infrastructure supporting mission-critical applications and enterprise systems. This position is responsible for driving DevOps best practices across the software development lifecycle, enabling continuous integration and continuous delivery (CI/CD), automating infrastructure management, and improving system reliability, performance, and security. The ideal candidate combines deep expertise in cloud and on-premises environments, infrastructure as code, container orchestration, and cybersecurity-focused operations while serving as a technical leader and mentor within the engineering organization.

Key Responsibilities

Provisioning: Design and maintain automated, hands-off provisioning of physical and virtual hosts, from network boot through a fully configured, compliant system.

Configuration management: Define system state as code, enforce it consistently across environments, and eliminate configuration drift.

CI/CD: Build and maintain pipelines that test, package and deploy both application and infrastructure code; improve speed and reliability of releases.

Workflow automation: Find manual, repetitive operational tasks and replace them with reliable, auditable automation and tooling.

Identity and access: Operate centralized identity services — directory, authentication, certificate authority and access policy — including replication, integration and lifecycle management.

Containers: Build, secure and run containerized workloads, including image builds, registries and runtime management.

Content delivery: Manage internal distribution of software, packages and artifacts — repository mirrors, caching and delivery to hosts across sites.

Security and hardening: Apply and maintain hardening baselines, mandatory access controls, host firewalls and least-privilege practices; support audit and compliance requirements.

Reliability: Participate in troubleshooting and incident response, lead root-cause analysis, and fix underlying causes rather than symptoms.

Collaboration and knowledge sharing: Contribute to architecture and engineering standards, share expertise through pairing and design and code reviews, and write the runbooks and design notes the team relies on.

Responsibilities

10+ years in systems, infrastructure or DevOps engineering, with a track record of applying DevOps practices: infrastructure as code, version control for everything, peer review, automated testing and continuous delivery.

Experience mentoring other engineers and contributing to team-wide technical standards and design decisions.

Deep administration experience with enterprise Linux, preferably Red Hat–family distributions.

Hands-on experience with automated OS provisioning and installation at scale.

Production experience with at least one configuration management tool.

Experience building and maintaining CI/CD pipelines with a mainstream platform.

Solid scripting and programming skills in Python, plus shell.

Working knowledge of directory services and authentication: LDAP, Kerberos, and PKI/certificate management.

Experience building and running containers.

Practical Linux security experience: mandatory access control, host firewalls, and hardening to a recognized baseline.

Strong troubleshooting skills across OS, network and application layers.

Clear written communication and a habit of documenting work.

Languages

Sr DevOps Engineer

Overview

Key Responsibilities

Responsibilities

Qualifications

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