Senior IT/OT Engineer

Stellix; United States; Hybrid; USD 110,000 - 140,000; Full time

Benefits offered by this job

Continued learning & certification

Employee-owned (ESOP)

Job summary

Stellix seeks a Senior IT/OT Engineer to design, build, and secure converged IT/OT environments for Life Sciences and Critical Infrastructure clients. You will lead technical architecture, hands-on implementation, and commissioning of industrial control systems, virtualization platforms, and OT cybersecurity controls.

As a senior team member, you will balance deep technical execution with mentorship, proposal support, and standardization of repeatable engineering practices.

Qualifications

• Bachelor's degree or equivalent practical experience in engineering, computer science, or related field.
• 7+ years of IT/OT engineering in industrial or regulated environments preferred.
• Experience with DeltaV and FactoryTalk control systems is highly desirable.

Responsibilities

• Design, configure, and commission distributed control and SCADA systems (DeltaV, FactoryTalk).
• Lead FAT and SAT testing in line with ASTM E2500 and client validation requirements.
• Integrate control systems with plant historians, OT networks, and supervisory layers.
• Architect and deploy virtualization/hyperconverged infrastructure (Proxmox VE, VMware) with high availability.
• Specify and deploy server/network hardware for industrial and edge deployments.
• Develop standardized build guides, network diagrams, and configuration baselines.

Skills

IT/OT engineering

Industrial automation

OT cybersecurity

FAT/SAT testing

Education

Bachelor's degree in Engineering, Computer Science, or related field

Tools

Proxmox VE

VMware

DeltaV

FactoryTalk

OT networks

SANS ICaS

IEC 62443

Job description

Our people drive outcomes in live operations.

Organizations in the life sciences and other critical industries need a partner who can define what’s next and stay accountable once it’s live. That’s the work here: we design, implement, and govern the operating models that turn disruption into durable competitiveadvantage.

You need frontline execution judgment, not just the ability to deliver strategy slides. The work is designing for resilient operations in the life sciences and other critical industries. The opportunity is to positively impact the lives of real people: your family, your friends, your colleagues, and others around theworld.

You will work directly with customers in high-stakes environments, including labs, manufacturing sites, and control rooms. Every situation is different, but in all cases, innovation and change cannot compromise quality, production, orcompliance.

You’re committed to designing, running, and governing the “best digital architecture for the client,” helping them use AI to get the most out of their physical and digital assets to achieve their desiredoutcomes.

You’re evaluated on results, not project completion alone. Whether it’s accelerated batch release, reduced deviations, or increased throughput, your success is defined by the measurable impact you make on the client’soperations.

Why people choose to build a career atStellix

That judgment is only the beginning. Stellix team members develop a rare, compounding blend of strategic and operational expertise toward something bigger: the opportunity to create an AI-empowered operational transformation partner that can guide organizations into a new frontier of operationalexcellence.

Our team members help define how these environments run. You’re helping to build the new frontier of the business itself, combining people, data, systems, AI, robotics, and intelligent automation to change what’spossible.

Most partners can either design the future or run live operations. Stellix team members do both. They work directly with customers, not just for them, to design, run, and govern the adaptive operating models that will make their business moreresilient.

Those individual results add up to something more lasting. Stellix team members are building a company that creates meaningful outcomes not just for customers, but for the communities theyserve.

Life at Stellix

On the floor, in the data, with the customer.

Our people work where the operation is — plants, labs, control rooms, and the systems behind them — designing, running, and governing the models that keep them adaptive. One team, blending strategy and execution across functions and industries, turning continuous change into durableadvantage.

What we offer

Close to the operation, honest about complexity, and measured on outcomes — not activity. You’ll partner directly with the customers whose production depends on getting itright.

• Continued learning &certification
• Employee-owned(ESOP)

The approach

Four connected disciplines. One accountable team.

Careers here span the full lifecycle — design it, implement it, and govern it once it’s live. Wherever you sit, the workconnects.

Operational Foresight

See risk and opportunity before they hit the floor. We use live plant data and modeling to plan the next move with confidence — so decisions are made early, not in acrisis.

Strategy in Motion

Turn strategy into sequenced, executable change that adapts as conditions shift — not a binder that sits on a shelf. Outcomes stay the fixed point; the planflexes.

Digital Infrastructure for Adaptive Operations

The connected data-and-control backbone — from IIoT sensors (internet-connected industrial devices) to MES (manufacturing execution systems that run and record production) — that lets operations flex withoutbreaking.

Outcomes and Adaptive Advantage

Measurable results that compound: faster time-to-batch-release, higher uptime, fewer deviations, lower cost-to-serve — and the resilience to keep improving as changecontinues.

The Stellix Group of companies share a common mission of providing transformative solutions at the intersection of science and technology that enable our customers to deliver a healthier and more sustainable future. Our unique portfolio of companies is focused on helping life sciences and industry manufacturers build, connect, and transform operations and IT to make real progress in breakthrough therapeutics, food, energy, and more.

About the Role

Stellix is seeking a Senior IT/OT Engineer to design, build, and secure converged IT/OT environments for clients across Life Sciences and Critical Infrastructure. This is a client-facing delivery and consulting role: you will lead technical architecture, hands-on implementation, and commissioning of industrial control systems, virtualization platforms, and OT cybersecurity controls.

As a senior member of the team, you will balance deep technical execution with mentorship, proposal support, and standardization of repeatable engineering practices. The ideal candidate is a genuine IT/OT generalist — equally comfortable in a control system cabinet, a hypervisor console, and a network segmentation design review.

Key Responsibilities

• Design, configure, and commission distributed control and SCADA systems, including DeltaV and FactoryTalk environments.
• Lead and document Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT) in line with ASTM E2500 and client validation requirements.
• Integrate control systems with plant historians, OT networks, and supervisory layers while preserving system integrity and validated states.
• Architect and deploy virtualization and hyperconverged infrastructure using Proxmox VE and VMware, including cluster design, storage, and high availability.
• Specify and stand up server and network hardware (e.g., Dell PowerEdge R660 class) for industrial and edge deployments.
• Develop standardized, repeatable build guides, networking diagrams, and configuration baselines for client and internal use.

OT Cybersecurity

• Assess and harden OT environments against recognized frameworks, including SANS ICaS Critical Controls and IEC 62443.
• Design and implement network segmentation, secure remote access, patch and backup strategies, and asset inventory practices for OT.
• Support OT cybersecurity assessments and roadmap development, translating findings into prioritized, qualified remediation plans

Client Delivery & Consulting

• Serve as a technical lead on client engagements, from scoping and design through implementation, testing, and handover.
• Contribute to proposals, statements of work, and technical estimates for Life Sciences and Critical Infrastructure opportunities.
• Produce clear, audit-ready documentation and present technical findings to client stakeholders ranging from plant engineers to IT leadership.
• Mentor junior engineers and review technical deliverables for quality and consistency.
• Drive reusable engineering standards, templates, and tooling that improve delivery efficiency and accuracy.

Required Qualifications

• Bachelor's degree in Engineering, Computer Science, or a related technical field, or equivalent practical experience.
• 7+ years of combined IT and OT engineering experience, including hands-on work in industrial or regulated environments.
• Demonstrated experience with industrial control systems such as DeltaV and FactoryTalk.
• Proven experience with virtualization platforms (Proxmox, VMware) and server/network infrastructure.
• Working knowledge of OT cybersecurity frameworks (SANS ICaS Critical Controls, IEC 62443) and network segmentation principles.
• Strong documentation skills and experience with structured testing methodologies (FAT/SAT, ASTM E2500).
• Excellent communication skills and the ability to lead client-facing technical discussions.

Preferred Qualifications

• Experience delivering projects in Life Sciences (GMP/validated environments) or Critical Infrastructure sectors.
• Familiarity with hyperconverged infrastructure design and edge computing deployments.
• Relevant certifications (e.g., GICSP, CISSP, Cisco/CCNA, VMware VCP, or vendor ICaS certifications).
• Experience with automation, scripting, or AI-assisted tooling for engineering documentation.

What Success Looks Like

In the first year, this engineer will lead the technical delivery of multiple client engagements, establish or refine reusable build and assessment standards, and serve as a trusted technical advisor across both the internal team and client stakeholders.

Compensation: This position offers a base salary range of $110,000 to $140,000, based on experience and qualifications. The role is also eligible for a variable compensation plan.

The posted salary range represents a good faith estimate of the expected compensation for this role at the time of posting. Final compensation will be determined based on factors such as relevant experience, skills, qualifications, internal equity, and business needs.

On-Site Requirements

This position requires a full on-site presence 5 days per week during the first 4-6 months. Following that period, the role will be on-site four days per week, including Monday, Wednesday, and Thursday, with the fourth on-site day alternating between Tuesday or Friday depending on business needs.

Must be currently authorized to work in the United States.

Policy on Third-Party Unsolicited Resume Submissions: Please note that any third-party unsolicited resume submissions will immediately become the property of Stellix. Stellix will not pay any fee to a submitting employment agency, person, or entity unless a signed agreement is established.

Please Note: Stellix is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender identity, sexual orientation, national origin, disability, protected veteran status or any other characteristic protected by law.

The work keeps evolving as our customers’ operations do. We'll reach out when the right fitopens.