All roles

Open role

Network Penetration Tester

Remote · Netherlands Full-time

You will execute network penetration tests and secure complex infrastructure environments.

Responsibilities

  • Execute network penetration tests across telecom, networking, and cloud environments.
  • Perform platform hardening, access management, and certificate management.
  • Conduct security assessments of operating systems and cloud infrastructure.
  • Troubleshoot and diagnose complex security vulnerabilities independently.
  • Manage multiple high-priority projects with minimal supervision.

Required Skills

  • 8+ years of experience in Telecom, Networking, Application Security, and Cloud Security.
  • Deep understanding of the TCP/IP protocol stack and HTTP/2.
  • Expertise in PKI, SSL, TLS, DTLS, and mutual TLS.
  • Strong knowledge of OAuth, Authentication, and Authorization protocols.
  • Proficiency in Linux/UNIX and Shell scripting.
  • Experience with network security and operating system security.
  • Proven ability to manage complex security projects.
  • Strong written and oral communication skills.

Preferred Skills

  • Familiarity with 4G and 5G Networks (3GPP standards).
  • Bachelor's degree in Computer Science, Electrical Engineering, or Computer Engineering.

More open positions

[Remote] Security Analyst

Work from home Full-time role

[Remote] Sr Cyber Security Analyst

Work from home Full-time role

Remote - IT Security Analyst - Dimondale,MI-Hybrid(Candidate Must be Local and onsite twice a week)

Work from home Full-time role

[Remote] Cyber Security Analyst

Work from home Full-time role

[Remote] Senior Security Analyst - REMOTE

Work from home Full-time role

Remote Data Entry Specialist – Accurate Logistics Data Management for careerzynith – $20/hr Flexible Home‑Based Role

Work from home Full-time role

[Remote] Intake Specialist - Remote

Work from home Full-time role

Freelance Reporter/Content Producer

Work from home Full-time role

Entry Level Remote Data Entry Specialist – Flexible Hours, Growth-Focused Career Opportunity with careerzynith

Work from home Full-time role

Sales Development Representative

Work from home Full-time role

Experienced Part-Time Live Chat Support Specialist – Work From Home Opportunity with careerzynith

Work from home Full-time role

Experienced Remote Data Entry Clerk – No Experience Required – Work From Home Opportunity at careerzynith

Work from home Full-time role

Sr. Clinical Studies Associate

Work from home Full-time role

Account Manager

Work from home Full-time role

Experienced Customer Service Representative – Remote Support for careerzynith

Work from home Full-time role

L1 Support Engineer - Spanish Backup

Work from home Full-time role

Independent Contractor – Collision Center Auditor

Work from home Full-time role

Experienced Travel Agent

Work from home Full-time role

Lead Full Stack Engineer (AI/Agentic)

Work from home Full-time role

Senior Java Developer

Work from home Full-time role

Experienced Full Stack Customer Service Representative – International BPO

Work from home Full-time role