Description

Join Heritage Bank as the force behind secure banking operations. The Sioux Falls -based Network Security Engineer role is a high-impact opportunity for a skilled technical leader to own network performance, strengthen cybersecurity controls, and help protect the integrity, availability, and resilience of our technology environment

Position Summary

The Network Security Engineer is responsible for the design, implementation, security, and maintenance of the bank’s network and IT infrastructure. This role ensures the confidentiality, integrity and availability of bank systems in alignment with regulatory expectations. This is a hands-on technical role with full ownership of network operations and cybersecurity controls, working closely with the VP of Information Technology to support secure and reliable banking operations.

Core Responsibilities

Network Infrastructure Management

Design, implement, and maintain LAN/WAN infrastructure across headquarters, branches, and remote locations
Manage routers, switches, firewalls, VPNs, and wireless networks
Monitor network performance and proactively address capacity, reliability, and latency issues
Manage MPLS, SD-WAN, and secure remote access solutions
Support connectivity for core banking systems, online/mobile banking platforms, and third-party vendors

Security & Compliance

Implement and maintain secure network architectures aligned with banking regulatory requirements (e.g., FFIEC guidance)
Manage firewalls, intrusion detection/prevention systems (IDS/IPS), and network access controls
Conduct regular vulnerability assessments and remediation efforts
Support audits and examinations by internal auditors and regulatory agencies
Maintain documentation for compliance and security standards
Administer user access controls and permissions
Oversee the patching strategy

Monitoring & Incident Response

Utilize network monitoring tools to ensure uptime and performance
Lead troubleshooting efforts for network outages and service disruptions
Participate in incident response, root cause analysis, and post-incident reporting
Maintain and test disaster recovery and business continuity network components

Project Leadership

Lead or contribute to IT infrastructure projects, including upgrades, migrations, and new branch deployments
Evaluate and recommend new technologies to improve performance, security, and scalability
Assist in evaluating and onboarding new vendors and monitoring providers for performance and risk

Documentation & Standards

Maintain accurate network diagrams, configurations, and procedures
Establish and enforce network standards and best practices
Provide technical guidance to junior IT staff

Bank Standards

At Heritage Bank, we are committed to a customer-centric, service-driven culture. We operate under the following core standards:

Mission: Help people succeed financially.
Ethics: Always do the right thing.
Solutions: Bring innovative solutions to challenges.
Ownership: Take accountability and learn from our mistakes.
Positivity: Bring energy and enthusiasm to everything we do.

Compensation & Benefits

Get ready to be rewarded! Full-time team members enjoy a comprehensive benefits package including paid time off, paid holidays, and even paid volunteer days. Your health is covered with medical, dental, and vision insurance, plus plan for your future with our 401(k) and ESOP retirement plans. Enjoy additional benefits and incentives consistent with our company policy. Join us and discover how rewarding your career can be!

Disclaimer

This job description outlines the general nature of the role and is not intended to be all-inclusive. Duties, responsibilities, and benefits may change as business needs evolve. Employment is at will, meaning either the employee or the Company may end the employment relationship at any time, consistent with applicable law.

We are an Equal Opportunity Employer and value diversity at all levels of the organization.

Requirements

Qualifications

Education & Experience

Bachelor’s degree in information technology, Computer Science, Cybersecurity or related field (or equivalent experience)
5+ years of experience in: network engineering, IT infrastructure or cybersecurity operations. Preferably in financial services or a regulated industry.

Technical Skills

Strong knowledge of routing and switching (Cisco, Aruba, or similar)
Experience with firewalls (e.g., Fortinet, Palo Alto, Cisco ASA)
Familiarity with VPNs, VLANs, QoS, and network segmentation
Understanding of cloud networking (Azure/AWS)
Knowledge of cybersecurity principles and frameworks

Key Competencies

Strong problem-solving and analytical skills
Ability to work independently and manage multiple priorities
Excellent communication skills for both technical and non-technical stakeholders
High attention to detail and commitment to security and compliance
Proactive mindset with a focus on continuous improvement

Work Environment & Expectations

On-call availability for critical incidents and maintenance windows
Occasional travel to branch locations
Ability to work in a fast-paced, highly regulated environment

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