Senior Network Security Engineer

Job Title:

Senior Network / Security Engineer – Infrastructure & Segmentation Location:

Remote Brazil / Costa Rica / Mexico (Aligned to US EST / CST) Type:

Contract

Role Overview We are seeking a

hands-on Network / Security Engineer

with senior level experience to support enterprise and operational environments. This role blends

engineering, architecture, policy optimization, and environment modernization

across security platforms and network segmentation initiatives. The ideal candidate is comfortable working in distributed teams, documenting technical solutions, and collaborating with leadership and cross-functional stakeholders.

Key Responsibilities Security Engineering & Operations Configure, deploy, and optimize network and security platforms. Perform

policy tuning, rule analysis, and cleanup

across firewalls or segmentation tools. Support

platform migrations , integrations, and environment upgrades. Troubleshoot network and security incidents and performance issues. Architecture & Design Contribute to

security architecture reviews

and design improvements. Assist with

segmentation strategies

(network zones, VLANs, Zero Trust, or similar models). Evaluate tool effectiveness and recommend enhancements or replacements. Environment Optimization & Migration Improve existing environments, not only greenfield builds. Participate in modernization efforts and cross-platform transitions. Conduct technical assessments and propose optimization plans. Documentation & Governance Produce

architecture diagrams, runbooks, and policy documentation . Support internal compliance, audits, or framework alignment (e.g., NIST or similar standards). Deliver gap analyses and technical reports to stakeholders. Collaboration & Communication Work closely with security leadership, operations teams, and business units. Collaborate with other engineers across time zones. Clearly explain technical decisions and risks to non-technical audiences.

Required Qualifications 5+ years

of experience in network or security engineering roles. Strong hands-on experience with

security platforms, firewalls, or visibility/segmentation tools . Proven experience in

policy optimization, migrations, and environment tuning . Knowledge of

network segmentation concepts

and access control strategies. Ability to create clear technical documentation and architecture diagrams. Experience working with

remote or distributed teams

aligned to US time zones. Strong analytical, troubleshooting, and communication skills.

Preferred Qualifications Vendor certifications (e.g., firewall, security, or network certifications). Experience with

Zero Trust models, perimeter security, or OT/ICS security environments . Familiarity with governance or compliance frameworks. Comparative experience with multiple security or monitoring tools. Exposure to data pipelines, SOC integrations, or cross-platform ecosystems.