Senior Site Reliability Engineer - TS/SCI (req-276)

CATHEXIS; Tysons (VA); On-site; USD 165,000 - 200,000; Full time

Benefits offered by this job

Performance Bonuses

Medical Insurance

Dental Insurance

Vision Insurance

401(k) Plan (Traditional and ROTH)

Life Insurance (Basic, Voluntary & AD&

Job summary

CATHEXIS is seeking a Senior Site Reliability Engineer (SRE) with a Top Secret/SCI clearance to join our Tysons team. You will manage, monitor, and optimize Kubernetes clusters and cloud infrastructure, deploying scalable solutions with IaC and containerization practices.

The ideal candidate has deep Kubernetes and cloud experience, strong programming skills, and a proactive approach to security and reliability. Travel up to 25% may be expected.

Qualifications

• Active TOP SECRET/SCI clearance or higher is required.
• Bachelor’s degree in Computer Science or related field.
• 5+ years of experience with on-premise and off-premise cloud environments.
• Experience with AWS and/or Azure.
• Hands-on with Linux, Docker, Kubernetes, Terraform, Helm, PostgreSQL.
• Proficient in programming languages such as Python, Java, C/C++, Ruby, and JavaScript.
• Experience with distributed storage and modern resource management frameworks.

Responsibilities

• Monitor and manage Kubernetes clusters for stability, health, and scalability.
• Deploy, monitor, and scale applications; maintain Helm charts and resources.
• Design and maintain Docker-based microservices deployments across environments.
• Work with AWS/Azure/GCP to manage infrastructure via IaC (Terraform, CloudFormation).
• Set up monitoring, alerts, and incident response for Jenkins or Kubernetes issues.
• Build automation for scaling and infrastructure using modern tools.
• Collaborate with development, services, and operations teams to ensure seamless integration.
• Ensure security and compliance with RBAC, encryption, and automated vulnerability scanning.

Skills

Kubernetes

Docker

Terraform

Ansible

Linux

Python

Java

C/C++

Ruby

JavaScript

PostgreSQL

Cloud Platforms

Education

Bachelor’s degree in Computer Science or related field

Tools

AWS

Azure

GCP

Helm

CloudFormation

Jenkins

Terraform

Job description

Team CATHEXIS elevates the government contracting experience through rapid response, deep skill, and thoughtful problem-solving and communication. Our core capabilities are our top-tier program and project management, data analytics, and audit services, the backbone of which is our integrated approach to operational excellence.

You worked hard to get to where you are. You strive to make every day better than the day before. So do we. Team CATHEXIS operates with an all-in mindset. We are working together to create a company that supports our shared values and individual goals. Our values are centered around leading with integrity, owning the outcome, growing together, and moving with purpose in everything we do for our employees, customers, partners, and communities. We believe success is best when we listen and lead with empathy; model high standards of ethics to provide a rewarding candidate experience; work hard, have fun, and appreciate the strengths we all bring to the team; and empower our employees to create innovative and trusted results.

We are looking for a dynamic Senior Site Reliability Engineer (SRE) with a Top Secret/SCI clearance to join our team! The Senior Site Reliability Engineer (SRE) will manage, monitor, and optimize clusters on Kubernetes. Together, we’re accelerating our clients’ digital transformation through the building and deployment of data-driven, scalable AI solutions. The ideal candidate will have a deep understanding of Kubernetes, Cloud Infrastructure, and Infrastructure as Code (IaC) practices. You will be responsible for ensuring the reliability and scalability of our clients’ Kubernetes clusters and Cloud Infrastructure.

Responsibilities

The responsibilities include, but are not limited to:

• Monitor and Manage Kubernetes Clusters: Ensure the stability, health, and scalability of Kubernetes Clusters, deploying applications and services on Kubernetes
• Kubernetes Management: Deploy, monitor, and scale applications on Kubernetes clusters. Maintain Helm charts, manage services, and ensure resource allocation for optimal cluster performance
• Containerization & Deployment: Design and maintain Docker-based microservices architecture, ensuring consistent and reproducible deployments across staging, QA, and production environments
• Cloud Infrastructure Management: Work with leading Cloud Platforms (AWS, Azure and/or GCP) to set up, configure, and manage infrastructure resources using Infrastructure as Code (Terraform, CloudFormation, etc.)
• Monitoring & Incident Response: Set up monitoring solutions, define alerts, an manage the incident response process for any issues related to Jenkins or Kubernetes clusters
• Automate Infrastructure Processes: Build automation tools for scaling, monitoring, and maintaining infrastructure using modern tools like Terraform, Ansible, Linux, or equivalent
• Collaborate Across Teams: Work closely with development, services, and operations teams to ensure a seamless integration between application development, deployment, and infrastructure
• Security & Compliance: Ensure all systems follow best practices in terms of security and compliance with relevant regulations. This includes role-based access, encryption, and automated vulnerability scanning

• Active TOP SECRET/SCI clearance or higher is required
• Bachelor’s degree in Computer Science or related field
• 5+ years of experience working with on-premise and off-premise cloud environments
• May require occasional travel (up to 25%)
• Experience with AWS and/or Azure
• Hands-on experience with a range of open-source technologies, such as Linux, Docker, Kubernetes, K8s, Terraform, Helm, PostgreSQL, or similar technologies
• Ability to program (structured and OOP) using one or more high-level languages, such as Python, Java, C/C++, Ruby, and JavaScript
• Experience with distributed storage technologies such as NFS, HDFS, Ceph, and Amazon S3, as well as dynamic resource management frameworks (Apache Mesos, Kubernetes, Yarn)
• Proactive approach to identifying problems, performance bottlenecks, and areas for improvement
• Ability to lead and work independently in an Agile/Scrum environment
• Real passion for developing team-oriented solutions to complex engineering problems
• Thrive in an autonomous, empowering and exciting environment
• Great verbal and written communication skills to collaborate multi-functionally and improve scalability
• Interest in committing to a fun, friendly, expansive, and intellectually stimulating environment

Desired Skills

• Hands-on experience deploying and operating applications using IaaS and PaaS on major cloud providers, such as Amazon AWS, Microsoft Azure, or Google Cloud Services
• Experience with deep learning, natural language processing, computer vision, or reinforcement learning
• Conveys highly technical concepts and information in written form to technical and non-technical audiences
• The ability to work on multiple concurrent projects is essential. Strong self-motivation and the ability to work with minimal supervision
• Must be a team-oriented individual, energetic, result & delivery oriented, with a keen interest on quality and the ability to meet deadlines

CATHEXIS offers competitive compensation packages to all eligible employees. Our goal is to provide a compensation package that reflects the value you bring to our team, is competitive with national average market rates, and promotes your financial security and personal well-being. The annual salary range for this role is $165,000 - $200,000. Please note that the salary information provided is a general guideline. CATHEXIS considers various factors in its final offer, including location, qualifications, experience, and skills.

• Performance Bonuses
• Medical Insurance
• Dental Insurance
• Vision Insurance
• 401(k) Plan (Traditional and ROTH)
• Life Insurance (Basic, Voluntary & AD&D)
• Paid Time Off
• 11 Federal Holidays
• Parental Leave
• Commute Benefits
• Short Term & Long Term Disability
• Training & Development
• Wellness Program
• Community Outreach Initiatives

CATHEXIS is an Equal Employment Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminatedagainston the basis ofdisability EEO IS THE LAW.If you are an individual with a disability and would like to request a reasonable accommodation as part of the employment selection process, please contact the Recruiting [e-mail].