ENS Solutions

Builds secure IT systems for government clients

Suricata Engineer

Security Engineering & ArchitectureConfirmed live in the last 24 hours

Full-timeWashington, USANo salary listedIn-person

About the Job

Requirements

Proven experience working with Suricata intrusion detection and prevention systems, including hands-on management of YAML configuration files.
Strong knowledge of Suricata configuration structure and syntax, including how it controls detection rules, logging, and output modules.
Extensive experience administering Red Hat Enterprise Linux systems, including package management with yum or dnf, kernel module management, SELinux configuration, and system optimization.
Hands-on experience tuning Suricata for high-performance packet capture with Napatech network interface cards or similar advanced network interface cards.
Familiarity with network interface card-specific features such as Direct Memory Access, Receive Side Scaling, interrupt moderation, and offload capabilities, and how to configure them for Suricata.
Experience troubleshooting Suricata’s interaction with network interface card drivers and kernel modules in an enterprise environment.
Experience with scripting languages such as Bash and Python to automate Suricata configuration and deployment tasks.
Active TS/SCI clearance and ability to obtain a counter-intelligence polygraph.
An Associate’s degree and 5 or more years of experience supporting IT projects and activities, a Bachelor’s degree and 3 or more years of experience, or a Master’s degree and 1 or more years of experience; experience may be accepted in lieu of a degree.
DoD 8570 IAT Level II certification, including Security+ CE, CCNA-Security, GSEC, SSCP, CySA+, GICSP, or CND certification.
Ability to obtain a DoD 8570 Cybersecurity Service Provider – Infrastructure Support certification, including CEH, CySA+, GICSP, SSCP, CHFI, CFR, Cloud+, or CND certification, within 60 days of the start date.

Responsibilities

Design, deploy, and maintain Suricata intrusion detection and prevention systems across enterprise networks.
Develop, review, and optimize Suricata YAML configuration files to ensure effective detection and minimize false positives.
Manage the interaction between Suricata’s YAML configuration and runtime engine, including rule loading, protocol decoding, and logging.
Tune Suricata for optimal performance with Napatech network interface cards, including configuring Direct Memory Access, Receive Side Scaling queues, interrupt coalescing, and network-interface-specific acceleration features.
Collaborate with security teams to integrate Suricata with security information and event management and other security monitoring platforms.
Troubleshoot Suricata installation and operational issues on Red Hat Enterprise Linux, addressing compatibility, kernel module requirements, SELinux policies, and performance.
Identify and mitigate deployment pitfalls in large-scale enterprise environments, including package dependencies, system resource constraints, and network interface card driver or configuration issues.
Provide detailed documentation and runbooks for Suricata configuration, network interface card tuning, and deployment processes.
Stay current with Suricata releases, network interface card driver updates, and best practices for network interface tuning and intrusion detection and prevention performance.

Desired Qualifications

Proficient understanding of network protocols, intrusion detection methodologies, and security event correlation.
Experience integrating Suricata with Splunk or other security information and event management solutions.
Knowledge of containerized Suricata deployments using Docker or Kubernetes in enterprise environments.
Familiarity with Linux operating systems including Red Hat Enterprise Linux, Oracle Linux, and CentOS.
Familiarity with other industry-standard intrusion detection and prevention solutions and related technologies.

Suricata Engineer - Active TS/SCI with CI Poly

ENS Solutions, LLC · Washington, United States · Full-time · Posted 2026-05-20

Workplace: on_site

Description

We are seeking an experienced Suricata Engineer to join our cybersecurity team. The ideal candidate will possess deep technical expertise in Suricata, particularly in understanding and managing its YAML configuration files, and how these configurations integrate and influence the Suricata Intrusion Detection Systems/Intrusion Prevention Systems (IDS/IPS). You will play a critical role in deploying, tuning, and maintaining Suricata within a complex enterprise IT environment, primarily running on Red Hat Enterprise Linux.

A key focus of this role will be tuning Suricata to operate optimally with Napatech network interface cards (NICs), ensuring high-performance packet capture and processing while minimizing packet loss and system resource overhead.

What You’ll Work On:

Designing, deploying, and maintaining Suricata IDS/IPS systems across enterprise networks.
Developing, reviewing, and optimizing Suricata YAML configuration files to ensure optimal detection capabilities and minimal false positives.
Understanding and managing the interaction between Suricata’s YAML configuration and its runtime engine, including rule loading, protocol decoding, and logging.
Tuning Suricata for optimal performance with Napatech NICs, including configuring Direct Memory Access (DMA), RSS queues, interrupt coalescing, and leveraging any NIC-specific acceleration features.
Collaborating with security teams to integrate Suricata with SIEM and other security monitoring platforms.
Troubleshooting installation and operational issues specific to Suricata on Red Hat Enterprise Linux, addressing compatibility, kernel module requirements, SELinux policies, and performance tuning.
Identifying and mitigating common pitfalls encountered when deploying Suricata in large-scale enterprise environments, including package dependencies, system resource constraints, and NIC driver/configuration issues.
Provide detailed documentation and runbooks for Suricata configuration, tuning NICs, and deployment processes.
Staying current with Suricata releases, NIC driver updates, and community best practices for network interface tuning and IDS/IPS performance enhancement.

Requirements

Proven experience working with Suricata IDS/IPS systems, including hands-on management of its YAML configuration files.
Strong knowledge of the Suricata configuration structure, syntax, and how it controls detection rules, logging, and output modules.
Extensive experience administering Red Hat Enterprise Linux (RHEL) systems, including package management (yum/dnf), kernel module management, SELinux configuration, and system optimization.
Hands-on experience tuning Suricata for high-performance packet capture with Napatech NICs or similar advanced network interface cards.
Familiarity with NIC-specific features such as DMA, Receive Side Scaling (RSS), interrupt moderation, and offload capabilities, and how to configure them for Suricata.
Experience troubleshooting Suricata’s interaction with NIC drivers and kernel modules in an enterprise environment.
Experience with scripting languages (Bash, Python) to automate Suricata configuration and deployment tasks.
TS/SCI clearance with the ability to obtain a counter-intelligence polygraph.
Associate’s degree and 5+ years of experience supporting IT projects and activities or Bachelor’s degree and 3+ years of experience supporting IT projects and activities or Master’s degree and 1+ years of experience supporting IT projects and activities. Years of experience may be accepted in lieu of degree.
DoD 8570 IAT Level II Certification, including Security+ CE, CCNA-Security, GSEC, SSCP, CySA+, GICSP, or CND Certification.
Ability to obtain a DoD 8570 Cybersecurity Service Provider - Infrastructure Support Certification, including CEH, CySA+, GICSP, SSCP, CHFI, CFR, Cloud+, or CND Certification, within 60 days of start date.

Nice If You Have:

Proficient understanding of network protocols, intrusion detection methodologies, and security event correlation.
Experience integrating Suricata with Splunk, or other SIEM solutions.
Knowledge of containerized deployments of Suricata (Docker/Kubernetes) in enterprise environments.
Familiarity with common Linux operating systems, including RHEL, Oracle, CentOS.
Familiarity with other industry-standard IDS/IPS solutions and related technologies.
Ability to be a self-starter, work without considerable direction, and work with a team.
Possession of excellent verbal and written communication skills, including for coordinating efforts and establishing customer relations.

Benefits

Essential Network Security (ENS) Solutions, LLC is a service-disabled veteran owned, highly regarded IT consulting and management firm. ENS consults for the Department of Defense (DoD) and Intelligence Community (IC) providing innovative solutions in the core competency area of Identity, Credential and Access Management (ICAM), Software Development, Cyber and Network Security, System Engineering, Program/Project Management, IT support, Solutions, and Services that yield enduring results. Our strong technical and management experts have been able to maintain a standard of excellence in their relationships while delivering innovative, scalable and collaborative infrastructure to our clients.

Why ENS?

Free Platinum-Level Medical/Dental/Vision coverage, 100% paid for by ENS
401k Contribution from Day 1
PTO + 11 Paid Federal Holidays
Long & Short Term Disability Insurance
Group Term Life Insurance
Tuition, Certification & Professional Development Assistance
Workers’ Compensation
Relocation Assistance

Candidate AI Usage Policy

AI tools are an important part of daily work at ENS Solutions, and we are committed to their responsible and ethical use. To ensure a fair and equitable candidate evaluation based on individual skills, knowledge, and experience, candidates are not permitted to use artificial intelligence or other assistive tools during interviews, whether in person or virtual, unless explicit permission has been granted in advance.

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Apply at ENS Solutions, LLC

About the Company

ENS Solutions

Builds secure IT systems for government clients

ENS Solutions builds and manages secure technology for defense, intelligence and commercial clients. Its identity and access work covers the systems that verify users, control permissions and protect sensitive accounts, alongside custom application development and systems integration. Teams also turn geographic data and imagery into maps and visual intelligence products used to explain places and events. The business works through consulting and technical service engagements, combining project planning with ongoing support for client systems from initial design through day-to-day operation. Founded in 2014, the company is headquartered in Mitchellville, Maryland.

Company size: 11-50
Company stage: Not listed
Total funding: Not listed
Headquarters: Mitchellville, MD
Founded: 2014

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