Senior Infrastructure Engineer I

Ardelyx • Waltham, MA

3d • $135,000 - $165,000 • Onsite

About The Position

The Senior Infrastructure Engineer I is a senior individual contributor responsible for designing, operating, and continuously improving Ardelyx’s hybrid cloud and on-prem infrastructure. This role requires strong hands-on engineering expertise, a high degree of operational ownership, and the ability to lead technical execution while mentoring junior engineers.
This position focuses on automation-first operations, reliability, and scale. The Senior Infrastructure Engineer I plays a key role in reducing manual effort, improving service quality, and enabling the broader IT organization through tooling, standards, and technical guidance. While influential in technical decisions, this role does not own enterprise-wide architecture or long-term platform strategy, which is handled at the Senior Infrastructure Engineer II level.

Requirements

• Bachelor’s degree in Information Technology, Computer Science, Engineering, or related field with 6 – 8+ years of hands-on infrastructure engineering or systems engineering experience or equivalent experience
• Strong operational ownership of on-prem, cloud, and hybrid infrastructure
• Proven experience with Windows Server, Active Directory, virtualization, and core networking
• Hands-on scripting and automation experience (PowerShell, Python, or Bash)
• Experience participating in incident, change, and problem management
• Ability to work independently on complex technical issues and mentor junior staff
• Strong documentation and cross-team communication skills

Nice To Haves

• Relevant certifications preferred (Microsoft, VMware, AWS, Azure, Cisco, FortiNet, PaloAlto, etc.)

Responsibilities

• Lead and mentor junior staff by guiding them in automating routine IT operations and reducing manual, repetitive work
• Design, develop, and standardize automation solutions (PowerShell, Python, Bash) for patching, provisioning, monitoring, remediation, and configuration management
• Establish best practices, reusable scripts, and runbooks that junior staff can follow to execute infrastructure tasks consistently and safely
• Monitor and troubleshoot cloud and on-prem infrastructure for availability, performance, and reliability issues; drive automated detection and remediation where possible
• Improve infrastructure performance, scalability, resiliency, and operational efficiency through automation-first design and continuous optimization
• Own patching, lifecycle management, and configuration baselines, leveraging automation to ensure compliance and consistency across environments
• Partner with Security and Compliance teams to automate vulnerability remediation workflows, including emergency fixes and compensating controls
• Contribute to monitoring, alerting, and observability practices with a focus on reducing MTTD/MTTR through automation and self-healing mechanisms
• Participate in Change Management activities, ensuring automated changes are tested, documented, and validated post-implementation
• Serve as a Tier 3 escalation point and technical role model, coaching junior engineers during incidents and complex infrastructure changes

Benefits

• Ardelyx also offers a robust benefits package to employees, including a 401(k) plan with generous employer match, 12 weeks of paid parental leave, up to 12 weeks of living organ and bone marrow leave, equity incentive plans, health plans (medical, prescription drug, dental, and vision), life insurance and disability, flexible time off, annual Winter Holiday shut down, and at least 11 paid holidays.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Number of Employees: 251-500 employees