Senior Pre-Sales Infrastructure / Network Design Engineer

Hybrid 3 days onsite in either New York, NY or Lake Mary, FL

Our client seeks a Senior Pre-Sales Infrastructure / Network Design Engineer to act as a technical subject matter expert for connectivity initiatives across external clients, vendors, and internal technology teams. You will gather requirements, design end-to-end connectivity solutions, and remain engaged through implementation and troubleshooting. The role requires expertise in network connectivity, extranets, and DMZ environments, along with strong client-facing communication skills and broad infrastructure knowledge.

We can facilitate w2 and corp-to-corp consultants. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance.

Rate: $80.00 to $90.00/hr. w2

• Serve as the technical infrastructure and connectivity SME from project initiation through implementation.
• Meet with internal application and technology teams to understand business, application, and connectivity requirements.
• Engage directly with clients, vendors, and external partners to understand technical requirements and existing infrastructure capabilities.
• Evaluate and design connectivity solutions utilizing B2B VPNs, circuits, and third-party network providers.
• Develop end-to-end infrastructure and connectivity designs that address internal application needs and external client environments.
• Coordinate with internal technology teams responsible for services such as MQ and file transfer.
• Provide technical designs and requirements to engineering and deployment teams for implementation.
• Maintain technical involvement throughout the project lifecycle to provide guidance and subject matter expertise.
• Support troubleshooting during new implementations, connectivity changes, and production issues.
• Understand how network, infrastructure, web-based applications, messaging, and file transfer components interact from a connectivity perspective.

• Strong experience with enterprise network connectivity and infrastructure design.
• Deep understanding of extranet and DMZ architectures.
• Experience designing connectivity between enterprise environments and external clients, vendors, or third parties.
• Strong understanding of B2B VPN connectivity, network circuits, and third-party network connectivity.
• Working knowledge of MQ within enterprise connectivity architectures.
• Experience with various file transfer protocols and technologies.
• Understanding of web-based applications from an infrastructure and network connectivity perspective.
• Broad understanding of enterprise infrastructure beyond traditional network engineering.
• Strong troubleshooting and problem-solving abilities for infrastructure and connectivity issues.
• Ability to develop end-to-end technical designs and communicate those designs to engineering and deployment teams.
• Strong client-facing communication skills with both technical and non-technical stakeholders.

Recruitment Transparency Notice

Eliassen Group values transparency in our recruitment practices. Please be advised that Eliassen Group utilizes artificial intelligence (AI) tools as part of its initial application screening  and hiring process. You may receive email and SMS notifications from the Eliassen Virtual Recruiting Team ( View email address on us.fitly.work , View phone number on us.fitly.work) inviting you to complete a brief voice screening as part of your application process. These tools assist our hiring teams in different ways, including but not limited to, assistance in reviewing application materials to help identify candidates whose qualifications most closely match the requirements of the position. All AI-assisted evaluations and responses are reviewed by human recruiters before any hiring decisions are made. The use of AI in our process is intended to support fairness, efficiency, and consistency, and Eliassen Group takes measures to prevent bias or discrimination in connection with its hiring practices. By proceeding, you acknowledge, agree, and consent to Eliassen Group’s use of these tools, including AI tools, as part of the application and hiring process.

Skills, experience, and other compensable factors will be considered when determining pay rate. The pay range provided in this posting reflects a W2 hourly rate; other employment options may be available that may result in pay outside of the provided range.

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If you have any indication of fraudulent activity, please contact View email address on us.fitly.work .

About Eliassen Group:

Eliassen Group is a strategic consulting firm that helps organizations reach further and achieve more through our technology, business advisory, and life sciences solutions. For nearly 40 years, we have combined exceptional people, deep domain expertise, and intelligent capabilities to expand our clients’ capacity and accelerate meaningful outcomes. We are driven by a purpose to positively impact the lives of our employees, clients, consultants, and the communities we serve.

Eliassen is committed to building a diverse and inclusive team from a variety of backgrounds, perspectives, and skills. We are an Equal Opportunity and Affirmative Action Employer and all employment decisions are based on merit, performance, and business needs. Eliassen does not discriminate on the basis of race, color, gender identity or expression, sexual preference or orientation, sex (including pregnancy, childbirth, and related medical conditions), marital status, creed, religion, physical or mental disability, genetic information, military or veteran status, age, ancestry, national origin, citizenship status, prohibited criminal record inquiries of applicants and employees, or any other category protected by federal, state, or local laws.

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