Network Security Engineer

MACOM
Lowell, MA
Company Overview:

MACOM designs and manufactures semiconductor products for Data Center, Telecommunication, and Industrial and Defense applications. Headquartered in Lowell, Massachusetts, MACOM has design centers and sales offices throughout North America, Europe, and Asia. MACOM is certified to the ISO9001 international quality standard and ISO14001 environmental management standard.

MACOM has more than 65 years of application expertise with multiple design centers, Si, GaAs, and InP fabrication, manufacturing, assembly and test, and operational facilities throughout North America, Europe, and Asia. View our facilities at In addition, MACOM offers foundry services that represent a key core competency within our business.

MACOM sells and distributes products globally via a sales channel comprised of a direct field sales force, authorized sales representatives, and leading industry distributors. Our sales team is trained across all of our products to give our customers insights into our entire portfolio.

Title: Network Security Engineer

Position Overview

We are seeking a Network Security Engineer to focus on securing and guiding the design, implementation, and response strategies for our global network environment. This role will play a critical part in ensuring network security best practices, advising on secure architecture, and supporting incident response efforts. The ideal candidate will have expertise in firewalls, SD-WAN technologies, cloud-based security solutions, and global network security design, with an emphasis on risk mitigation and resilience.

Key Responsibilities

  • Advise on and enforce secure network design principles across a global enterprise environment.
  • Work with network and security colleagues to ensure firewall policies, access controls, and segmentation align with security best practices.
  • Oversee the security aspects of network changes and implementations, ensuring they meet compliance and risk management requirements.
  • Respond to and investigate network security incidents, working closely with SOC and incident response teams to contain and mitigate threats.
  • Conduct risk assessments, security audits, and vulnerability management for network components.
  • Guide the implementation of SD-WAN, cloud-based firewalls, and secure remote access solutions, ensuring they align with security policies.
  • Collaborate with IT and security teams to establish Zero Trust principles, network hardening, and threat detection strategies.
  • Develop and maintain security policies, playbooks, and documentation for network security controls.
  • Provide security expertise for compliance and security initiatives.

Required Experience & Skills

  • 3+ years of experience in network security engineering, focusing on securing enterprise and global networks.
  • Strong knowledge of firewall security and network access control strategies.
  • Experience with SD-WAN security models and secure network segmentation.
  • Understanding of cloud-based firewall solutions (ZScaler, Netskope, Cloudflare etc.) and cloud networking security.
  • Expertise in incident response related to network security events.
  • Familiarity with IDS/IPS, VPN security, and NAC solutions.
  • Strong ability to assess network security risks and recommend mitigation strategies.
  • Excellent communication skills, with the ability to translate technical security concepts into business risks and solutions.
  • Experience with SIEM tools and network security monitoring.
  • Certifications such as CCNP Security, PCNSE, NSE4+.

Due to ITAR regulations, only candidates who are U.S. Persons (U.S. citizens, U.S. nationals, lawful permanent residents, or individuals granted asylum or refugee status) will be considered for this position.

EEO:

MACOM is an Equal Opportunity Employer committed to a diverse workforce. MACOM will not discriminate against any worker or job applicant on the basis of race, color, religion, sex, gender identity, sexual orientation, national origin, age, disability, genetic information, veteran status, military service, marital status, or any other category protected under applicable law.

Reasonable Accommodation:

MACOM is committed to working with and providing reasonable accommodations to qualified individuals with physical and mental disabilities. If you have a disability and are in need of a reasonable accommodation with respect to any part of the application process, please call +1-978-656-2500 or email [email protected]. Provide your name, phone number and the position title and location in which you are interested, and nature of accommodation needed, and we will get back to you. We also work with current employees who request or need reasonable accommodation in order to perform the essential functions of their jobs.
Posted 2025-12-31

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