Contract Senior IT Infrastructure Engineer

Keros Therapeutics seeks a Senior IT Infrastructure Engineer to serve as technical authority for enterprise infrastructure, cloud, identity, endpoint, and cybersecurity operations. This individual contributor role establishes architectures, standards, and technical direction while providing hands-on leadership on complex assignments in a hybrid Lexington, MA position.

Responsibilities

• Serve as senior technical advisor and escalation point for infrastructure, cloud, and cybersecurity operations
• Define target architectures, engineering standards, and technical roadmaps across multiple disciplines
• Lead resolution of critical security and infrastructure incidents with root-cause analysis and remediation
• Guide architecture and improvement of Microsoft cloud, identity, endpoint, and networking services
• Establish governance, standards, and documentation to support sustainable operations and regulatory compliance

Requirements

• Proven senior-level expertise in enterprise infrastructure and cloud architecture
• Deep knowledge of Microsoft cloud, identity, and endpoint management platforms
• Advanced cybersecurity operations and vulnerability management experience
• Demonstrated ability to design resilience, backup, and zero-trust architectures
• Experience with regulatory compliance frameworks (GxP, SOX ITGC, 21 CFR Part 11)
• Strong technical leadership and cross-functional influence without formal management