Network Engineer III

Description At Systems Engineering, our mission is to enable exceptional outcomes for our clients, employees, and the community.

We are seeking a full-time Network Engineer III to join our team. This client-facing role is responsible for designing, implementing, maintaining, and supporting advanced networking, security, and collaboration solutions for businesses.

Network Engineers work with a wide range of technologies, including routing, switching, firewalls, wireless networking, and collaboration systems. Working directly with clients and internal teams, engineers keep technology environments secure, reliable, and aligned with business goals.

We are looking for a highly motivated engineer with a strong networking and firewall background, a commitment to engineering excellence, and a drive to deliver exceptional client service. The right candidate will bring strong problem-solving and decision-making skills, attention to detail, and an aptitude for learning new technologies. The ability to work both independently and collaboratively as part of a strong technical team is essential.

Responsibilities

• Identify, analyze, troubleshoot, and resolve network, system, and performance issues.
• Design, implement, and integrate networking, security, and collaboration technologies within client environments.
• Serve as a technical resource for diagnosing and remediating complex client technology issues.
• Develop Systems Engineering standards documentation, technical guidelines, and best practices.
• Create and maintain accurate, comprehensive network and technical documentation.
• Partner with Account Managers to assess client needs and design, refine, and present technology proposals to clients and prospective clients.
• Serve as a subject matter resource in one or more assigned technologies.
• Provide technical guidance and leadership to network administrators, LAN and WAN engineers, account managers, and other internal stakeholders within assigned areas of expertise.
• Maintain timely and accurate project documentation and time entries in support of effective client service and project management.
• Contribute to the development of internal methodologies, templates, and best practices that enhance service delivery and client outcomes.
• Participate in the 24x7 on-call support rotation.
• Participate in after-hours project implementation.
• Obtain and maintain certifications required to support partnerships with key technology vendors.
• This is a full-time, hybrid position based in Portland, Maine, with a combination of onsite, remote, and client-site work.

Requirements

• Associate degree in a technical field or an equivalent combination of education, certifications, and relevant experience.
• Minimum of five years of professional technology experience, including at least three years in a service-based environment.
• Current technical certifications from Cisco, such as CCNA or CCNP, and/or Fortinet, such as NSE4 or NSE7, are strongly preferred.
• Experience installing, configuring, managing, or troubleshooting Fortinet technologies, including FortiGate, FortiAP, and FortiSwitch, as well as SASE, Cisco, Cisco Nexus, and Meraki technologies.
• Experience researching, implementing, managing, and troubleshooting network infrastructure across networking, security, and collaboration platforms.
• Strong knowledge of the OSI model, and core networking principles.
• Broad knowledge of cybersecurity concepts, including protection, detection, and incident response.
• Ability to explain how network technology and infrastructure can support client operations and business goals.
• Strong client service, communication, and interpersonal skills, with a demonstrated commitment to professionalism.
• Ability to work collaboratively, remain accountable for assigned projects and deliverables, and produce results that meet client needs.
• Effective critical-thinking, analytical, decision-making, and problem-solving skills.
• Strong organizational, multitasking, and time-management skills, with the ability to adapt to changing priorities.
• Ability to manage multiple concurrent client projects while balancing priorities, dependencies, milestones, deliverables, and stakeholder expectations.
• Ability to work outside normal business hours when required.
• A valid driver’s license and an acceptable driving record are required.

Our Culture & Benefits

The employees of Systems Engineering are its most valuable resource and have collectively made Systems Engineering a Best Places to Work company in Maine for over a decade. We pride ourselves on delivering great outcomes for our culture, clients, and community by cultivating a high-performing environment focused on continuous learning, collaboration, and community impact.

Our headquarters is in Portland, Maine, in the heart of the Old Port and centrally located near the waterfront, trails, parks, cultural events, and restaurants. Systems Engineering also has offices at Pineland Farms in New Gloucester, Maine.

Compensation & Pay Transparency Statement

Systems Engineering offers a competitive compensation package that reflects both the market and the experience you bring to the role. Base salary will be discussed during the interview process and is complemented by a comprehensive benefits package, hybrid flexibility, and the opportunity to do high-impact work for our clients. Systems Engineering is committed to fair, equitable, and competitive pay, reviewed regularly to support internal alignment and market relevance.

The base salary range for this position is $110,000 to $125,000 per year.

Benefits & Total Rewards

In addition to base pay, Systems Engineering supports employees through benefits designed to sustain both work and life:

• Health & Wellbeing: Competitive medical, dental, and vision benefits; employer-paid life, short-term disability, and long-term disability insurance; a 24/7 Employee Assistance Program; onsite fitness facilities; daily stretch breaks; and free health coaching programs.
• Financial Wellbeing: Employer 401(k) matching contributions, a Short-Term Incentive Plan tied to individual and company performance, and free financial advising.
• Time & Flexibility: Paid Time Off starting with 17 days of PTO, nine paid holidays, and hybrid work arrangements.
• Family Support: Paid parental leave and dependent care FSA programs.
• Professional Development & Growth Opportunities: Career mobility and employer-supported training, learning, and certification opportunities, including tuition reimbursement benefits.
• Community & Culture: Paid community volunteer time, employer charitable-match programs, corporate golf membership, company-provided season tickets to local sports teams, employer-provided parking, and regular company gatherings.

Due to the nature of our business and the requirements of ITAR regulations, this role may require access to controlled information and technology. Candidates must be U.S. citizens or lawful permanent residents and be willing to undergo a thorough background check as part of the employment process.

Systems Engineering values diversity and is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, sexual orientation, gender identity, national origin, disability, veteran status, or any other status protected by law.