Sr. Network Security Engineer – Direct Hire/Local Field Support 4755 CHI

Healthcare Infrastructure | Zero Trust | Multi‑Vendor | High‑Visibility Role
Locations: Chicago – Remote-first with occasional onsite visits to local MSP clients

Pay: $110-150K/year

About the Role

Tier4 is looking for a Senior Network Security Engineer who thrives in complex, multi‑vendor environments and loves turning chaotic networks into beautifully stable, secure architectures. If you enjoy solving real-world networking challenges, owning high‑impact projects, and representing engineering in executive‑level conversations, this role is for you.

This position supports a rapidly growing healthcare‑focused technology organization, where uptime is everything and no two networks look the same. You’ll operate with autonomy, authority, and visibility — especially in Des Moines, home to the organization’s largest and most strategically important client.

What You’ll Do

Network Engineering & Security Leadership

• Architect, deploy, and support LAN/WAN and wireless networks across multi‑site healthcare environments (Ubiquiti, Meraki, Cambium, Aruba, Cisco, Ruckus).
• Configure and maintain next‑gen firewalls (Palo Alto, Fortinet, SonicWall, Meraki) across diverse environments.
• Lead Zero Trust initiatives, including:
• ZTNA
• Network Access Control (NAC)
• Micro‑segmentation
• VPN reduction & identity‑based access strategies

Advanced Troubleshooting & Escalation

• Serve as Tier 3 escalation (approx. 70% of workload).
• Diagnose and resolve high-impact issues including spanning tree loops, routing anomalies, physical mispatch events, rogue devices, and wireless instability.
• Perform deep traffic analysis, packet captures, and threat analytics using NetFlow, Auvik, and firewall telemetry.

Project Engineering

• Execute projects ranging from small firewall upgrades to large-scale deployments involving:
• 50–70 switches
• 400–500 access points
• Multiple redundant firewalls
• Support technology refreshes across newly onboarded communities with widely varying equipment and configurations.

Client Interaction & Executive Presence

• Represent the Network Engineering function in high-visibility meetings, especially at the Des Moines corporate headquarters.
• Interface with IT Directors, CIOs, CTOs, and virtual IT leaders — requiring exceptional communication and professionalism.
• Partner with community-level leadership (Chicago) and internal NOC teams (Alpharetta) as needed.

Documentation & Standards

• Maintain network baselines, configuration repositories, documentation, and disaster‑ready backups.
• Contribute to SIEM integrations and ongoing hardening of the security posture.
• Mentor L2/L3 engineers and help level up team capability.

Technical Expertise

• 7+ years of senior-level network + security engineering experience.
• Strong multi‑vendor background — Cisco, Meraki, Palo Alto, Fortinet, SonicWall, Ubiquiti, Ruckus, etc.
• Deep knowledge of:
• Routing & switching
• VLAN segmentation & VRFs
• QoS, DNS, NAT
• 802.1X, RADIUS, EAP-TLS
• IDS/IPS, DNS filtering, gateway security layers
• Experience with Auvik or similar monitoring and packet capture tools.
• Ability to operate effectively in environments with limited physical control (mispatching, unmanaged local changes, etc.).
• Broad familiarization with adjacent IT domains (Windows servers, infrastructure, general enterprise systems).

Soft Skills

• Outstanding communication skills with the ability to converse confidently with senior IT executives.
• Highly self-managed — able to operate remotely with limited oversight.

Senior Salesforce Admin

What You’ll Do

• Design, develop, and maintain Salesforce solutions using Apex, Lightning Web Components (LWC), Visualforce, and SOQL
• Configure and administer Salesforce platform components including users, roles, security, workflows, and automation
• Build and maintain integrations using REST/SOAP APIs, middleware, and ETL tools
• Support enterprise integrations with ERP systems, identity providers (Azure AD/B2C), and third‑party applications
• Develop and manage CI/CD pipelines using Azure DevOps or GitHub Enterprise
• Implement scalable, secure solutions aligned with best practices and compliance requirements
• Collaborate with business stakeholders, architects, QA, and engineering teams to translate requirements into technical solutions

How You’ll Make an Impact

Drive Scalable Business Solutions

• Deliver well‑architected Salesforce solutions that streamline processes and reduce manual effort
• Improve system scalability to support evolving business needs

Enable Data‑Driven Decision Making

• Ensure high data integrity across Salesforce and integrated platforms
• Optimize reporting and analytics capabilities

Accelerate Delivery with DevOps

• Implement CI/CD pipelines and DevOps best practices
• Increase release speed while maintaining quality and compliance

What You Can Expect

Strategy & Planning

• Partner with business and technical teams to align solutions with organizational goals
• Stay current with emerging technologies and apply them to enterprise initiatives
• Ensure systems meet both functional and operational requirements

Operational Excellence

• Identify, troubleshoot, and resolve system issues
• Standardize processes and enforce best practices
• Apply security controls to maintain safe and compliant operations

Delivery & Execution

• Develop, test, and deploy solutions following SDLC best practices
• Document technical designs, workflows, and system processes
• Support continuous improvement and agile delivery practices

What You’ll Bring

Core Qualifications

• 5+ years of hands‑on Salesforce development and administration experience
• Strong experience with Sales Cloud (Marketing Cloud experience a plus)
• Salesforce certifications (Admin + Platform Developer I) required
• Experience working in Agile/Scrum environments

Technical Expertise

• Salesforce Development: Apex, LWC, Visualforce, SOQL/SOSL, unit testing
• Platform Administration: security, roles, profiles, workflows, flows, dashboards
• Integrations: REST/SOAP APIs, ETL tools, middleware, AppExchange solutions
• DevOps: CI/CD pipelines, Azure DevOps, GitHub, IaC, TDD
• Cloud & Identity: Azure AD / Azure B2C authentication and authorization
• Frontend: HTML, CSS, JavaScript, jQuery

Additional Experience

• Data migration and integration tools
• Sandbox and environment management
• Third‑party integrations (e.g., DocuSign, ServiceNow, SharePoint)
• Strong understanding of Salesforce data models, security architecture, and governance

Nice to Have

• Experience in highly regulated industries
• CRM migration experience (e.g., Dynamics → Salesforce)
• Background in .NET development
• Familiarity with financial systems or products

Key Responsibilities

• Develop custom Salesforce applications and enhancements
• Build and maintain integrations with enterprise systems
• Manage deployments across environments using CI/CD pipelines
• Implement complex business logic using Apex and Salesforce Flow
• Ensure data integrity, performance, and security
• Provide ongoing support, enhancements, and system improvements
• Collaborate with teams to maintain stable and scalable environments

Education

Bachelor’s degree in Computer Science, Software Engineering, or related field (or equivalent experience)

Compensation

Salary Range: $90,000 – $150,000 (depending on experience)

Lead DevOps Engineer

Location: Chicago, IL (100% Onsite) | Employment Type: Full Time | Start: ASAP

About Our Client

We are a mission-driven financial services organization dedicated to supporting member institutions with competitively priced funding, strong returns, and community investment initiatives.

Our work helps strengthen communities across both urban and rural areas. Operating in a highly regulated environment, we prioritize innovation, stability, and long-term impact.

Why This Role Matters

We are undergoing a high-impact DevSecOps transformation and are seeking a hands-on Lead DevOps Engineer to help drive it forward.

This role will play a key part in modernizing our software delivery lifecycle, leading a migration from Azure DevOps to GitHub, and introducing AI-enabled development practices. You will help build scalable, secure, cloud-native delivery pipelines while influencing strategy and execution.

What You’ll Do

Modernize DevSecOps

• Lead the redesign of fragmented DevOps pipelines
• Drive migration from Azure DevOps to GitHub
• Build scalable, end-to-end CI/CD pipelines
• Develop reusable infrastructure-as-code standards and templates
• Implement Kubernetes-based architectures

Embed Security and AI into the SDLC

• Implement security controls including SAST, DAST, SCA, IaC, and container scanning
• Enable AI-assisted development practices (e.g., Copilot)
• Improve compliance, auditability, and delivery efficiency

Drive Engineering Excellence

• Mentor engineers and promote DevSecOps best practices
• Contribute to building a DevSecOps Center of Excellence
• Partner with development, architecture, and security teams
• Establish metrics to measure DevOps maturity and adoption

First 90–180 Days

• Lead redesign of DevSecOps pipelines
• Support migration from Azure DevOps to GitHub
• Improve SDLC scalability and efficiency
• Identify and implement AI opportunities within the toolchain

What You Bring

Core Requirements

• Proven DevOps leadership experience with a strategic mindset
• Strong experience with CI/CD pipelines and DevSecOps practices
• Experience with Azure DevOps and AWS environments
• Hands-on experience migrating pipelines or platforms
• Ability to modernize SDLC and identify AI integration opportunities

Technical Expertise

• Infrastructure as Code: Terraform, Ansible, Chef
• Containerization: Docker, Kubernetes (EKS/ECS preferred)
• Programming: Python and C++ required; C# preferred
• DevSecOps tools such as Checkmarx, SonarQube
• Application monitoring tools like Datadog
• Databases including SQL, NoSQL, and graph technologies

Differentiators

• Experience redesigning fragmented DevSecOps environments
• Exposure to AI-enabled development toolchains
• Strong architectural vision and systems thinking

What It’s Like to Work Here

Our client fosters a collaborative, high-performance environment focused on innovation, learning, and continuous improvement. Employees benefit from mentorship programs, professional development opportunities, and hands-on training.

Our client’s in-office model promotes collaboration and team alignment.

Why Join

• Opportunity to lead a large-scale DevSecOps transformation
• Influence both strategy and execution
• Work with modern tools, including AI-enabled development
• Make a measurable impact in a mission-driven organization