Sr. Systems Engineer

Sr. Systems Engineer needed for a contract to hire in Waltham, MA working hybrid (onsite 3 days per week)!

Our client is seeking a Senior IT Systems Engineer to evaluate, deploy, manage, and maintain their IT infrastructure and cybersecurity tooling. You'll be the technical engine behind a fast-growing company, delivering secure, scalable solutions that enable innovation while managing risk. Reporting to the Senior Director of Cybersecurity & Technology, this is a pivotal role in maturing companies' IT Operations to meet the evolving demands of the business.

You'll collaborate across the organization, build trusted partnerships with stakeholders, and serve as a subject matter expert on IT solutions, from cloud identity platforms and endpoint management to network security and SaaS operations. This position will be onsite 3 days a week.

• Start building relationships with key stakeholders throughout the company
• Learn companies' compliance commitments (SOC 2, ISO 27001, etc.) and how best to support those efforts
• Gain familiarity with the current IT toolstack: Microsoft 365, endpoint management (Intune/Jamf), cloud infrastructure (AWS/Azure), network infrastructure (Palo Alto, Cisco, & Meraki), identity management (Okta, Entra ID, Linx) and core SaaS platforms
• Begin implementing or improving processes that measurably reduce security risk across the organization
• Build trust-based relationships with peers in IT and key stakeholders across business units
• Become an established subject matter expert on IT solutions and cybersecurity tooling used at company
• Mentor junior IT staff on IT and Cybersecurity best practices and technology use

• Be recognized as a trusted subject matter expert across IT infrastructure, endpoint management, cloud identity, and cybersecurity
• Have driven measurable improvements to the security posture and IT operational maturity of the organization
• Successfully supported compliance requirements and audit readiness, partnering closely with the Cybersecurity and Legal/Compliance teams
• Developed and documented systems and processes that empower the broader IT team and reduce single points of failure
• Contributed to a culture of continuous improvement by delivering iterative, user-focused technology solutions in close consultation with business stakeholders
• Be seen as a go-to resource by colleagues across the company for technology questions, escalations, and best practice guidance

Requirements

• Design, implement, and maintain enterprise IT infrastructure including network, server, cloud (AWS/Azure), and end-user computing environments
• Manage Microsoft 365 product suite including Microsoft Teams & SharePoint
• Administer and optimize Okta / Entra ID (formerly Azure AD), including identity lifecycle management, Conditional Access policies, and MFA enforcement
• Manage network infrastructure including firewalls (Palo Alto), switching (Cisco/Meraki), SD-WAN, and VPN/ZTNA solutions
• Administer virtualization & backup infrastructure, including guest Windows and Linux virtual machines
• Design, configure, and administer AWS environments including core services (EC2, S3, IAM, VPC, Route 53), with a focus on security best practices, least-privilege access, and cost-conscious architecture
• Administer and optimize Microsoft Azure environments, including resource group management, Azure Policy, cost management and budgeting
• Configure, operate, and maintain corporate IT systems including hardware, software, SaaS platforms, and support tooling (e.g. Okta/SSO, SIEM, EDR, vulnerability management)

Cybersecurity & Risk Reduction:

• Implement and continuously improve security controls across endpoint, identity, network, and cloud layers aligned to frameworks such as CIS Controls, NIST CSF, or SOC 2
• Assess technology risks throughout the company and recommend solutions to support business continuity and data protection
• Support compliance commitments by ensuring systems and processes meet audit requirements; serve as a technical resource during assessments

SaaS & Business Technology Operations:

• Support the management and optimization of the company's SaaS application portfolio, including procurement, provisioning, access controls, and integrations via SSO (Okta or similar)
• Assess technology needs across business teams and recommend solutions that support growth and operational efficiency
• Partner with IT teammates and business stakeholders to deliver iterative, user-focused improvements to technology systems and support processes

Collaboration & Escalation Support:

• Provide escalation support to IT teammates, serving as a technical resource for complex issues
• Mentor junior IT staff, helping them develop their technical knowledge, security awareness, and professional skills
• Document and communicate system changes clearly and consistently; maintain up-to-date runbooks and architecture documentation
• Provide excellent customer-oriented service to internal and external stakeholders; act as a trusted technology advisor throughout the company
• Identify, assess, and support current and emerging technology needs for Client, recommending enterprise-class solutions that protect the company and its customers
• Given the cross-functional nature of this role, strong technical, organizational, and communication skills are essential