Senior Systems Administrator

Doing meaningful work that makes an everyday impact on the world around you. Growing your expertise and expanding your skillset with every project. Imagine yourself… At Hach ( a Veralto company, we ensure water quality for people around the world, and every team member plays a vital role in that mission. Our founding vision is to make water analysis better—faster, simpler, greener, and more informative. We accomplish this through teamwork, customer partnerships, passionate experts, and reliable, easy-to-use solutions. As part of our team and the broader Veralto network, you’ll be part of a unique work environment where purpose meets possibility: where you’ll make an immediate, measurable impact on a global scale by enabling the world’s everyday water needs, and where you’ll have opportunities to foster your professional development and fuel your career growth. Motivated by the highest possible stakes in climate change and global health, we’re working together within a rapidly digitizing industry to find innovative technologies that guarantee the safety of our water and our environment. More about us: We offer: Flexible working hours Professional onboarding and training options Powerful team looking forward to working with you Career coaching and development opportunities Health benefits 401(k) Reporting to the Sr. Manager, Application Infrastructure , the Senior Systems Administrator is responsible for the design, implementation, operation, security, and continuous improvement of critical infrastructure services that support Hach and Water Quality operating companies. This role owns core platform services—including DNS, certificate lifecycle management, email authentication, Windows/virtualization platforms, and external security vulnerability remediation—driving operational reliability, compliance, and business continuity. This position is part of the Hach IT – Application Infrastructure department located in Ames, IA or Loveland, Colorado and will be hybrid . In this role, a typical day will look like: Administering and maintaining Windows Server, Active Directory, VMware/virtualization, storage, and site/datacenter infrastructure platforms. Owning internal and external DNS services, domain registrar activities, and DNS‑based email authentication controls (DKIM, SPF, DMARC). Managing end-to‑end SSL/TLS certificate lifecycle management (CSRs, issuance, renewals, PKI support). Investigating and remediating external attack surface findings and high‑risk vulnerabilities in partnership with SecOps and Global Security teams. Developing PowerShell scripts to automate repetitive infrastructure tasks and supporting backup and disaster recovery operations. The essential requirements of the job include: Bachelor’s degree in Computer Science, Information Systems, Engineering, or equivalent practical experience. 6+ years of hands‑on infrastructure engineering, systems administration, or platform operations experience in a regulated or business‑critical enterprise environment. Deep technical experience with Windows Server, Active Directory, DNS/DHCP, Group Policy, and VMware/virtualization platforms. Proven hands‑on experience with SSL/TLS certificate lifecycle management, PKI workflows, and email authentication standards (DKIM, SPF, DMARC). Direct experience with external security vulnerability remediation and advanced PowerShell scripting/automation. Hach is proud to part of the Water Quality segment of Veralto (NYSE: VLTO), a $5B global leader dedicated to ensuring access to clean water, safe food and medicine, and trusted essential goods. When you join Veralto’s vibrant global network of 17,000 associates, you join a unique culture and work environment where purpose meets possibility: where the work you do has an everyday impact on the resources and essentials we all rely on, and where you’ll have valuable opportunities to deepen your skillset, pursue your ambitions, and grow your career. Together, we’re Safeguarding the World’s Most Vital Resources™—and building rewarding careers along the way. US ONLY: The below range reflects the range of possible compensation for this role at the time of this posting. We may ultimately pay more or less than the posted range. This range may be modified in the future. An associate’s position within the salary range will be based on several factors, including, but not limited to, relevant education, qualifications, certifications, experience, skills, seniority, geographic location, performance, shift, travel requirements, sales or revenue‑based metrics, any collective bargaining agreements, and business or organizational needs. The compensation range for this role is $95,000 - $105,000 USD per year. This job is also eligible for Bonus Pay. We offer a comprehensive package of benefits including paid time off, medical/dental/vision insurance and 401(k) to eligible employees. Note: No amount of pay is considered to be wages or compensation until such amount is earned, vested, and determinable. The amount and availability of any bonus, commission, benefits, or any other form of compensation and benefits that are allocable to a particular employee remains in the Company’s sole discretion unless and until paid and may be modified at the Company’s sole discretion, consistent with the law. US residents: In any materials you submit, you may redact or remove age‑identifying information such as age, date of birth, or dates of school attendance or graduation. You will not be penalized for redacting or removing this information. Veralto Corporation and all Veralto Companies are committed to equal opportunity regardless of race, color, national origin, religion, sex, age, marital status, disability, veteran status, sexual orientation, gender identity, or other characteristics protected by law. We value diversity and the existence of similarities and differences, both visible and not, found in our workforce, workplace and throughout the markets we serve. Our associates, customers and shareholders contribute unique and different perspectives as a result of these diverse attributes. The EEO posters are available here . We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform crucial job functions, and to receive other benefits and privileges of employment. Please contact us at View email address on click.appcast.io to request accommodation. Unsolicited Assistance We do not accept unsolicited assistance from any headhunters or recruitment firms for any of our job openings. All resumes or profiles submitted by search firms to any employee at any of the Veralto companies, in any form without a valid, signed search agreement in place for the specific position, approved by Talent Acquisition, will be deemed the sole property of Veralto and its companies. No fee will be paid in the event the candidate is hired by Veralto and its companies because of the unsolicited referral. #J-18808-Ljbffr