Plant information systems engineerSalary, qualifications, career path and hiring demand, 2026 edition
A nuclear plant information systems engineer owns the digital systems that collect, store, contextualise and distribute operational plant data without interfering with safety or control functions. The role commonly spans AVEVA PI/OSIsoft PI historians, process computers, data-acquisition interfaces, plant networks, operator information systems and controlled links from OT into engineering or enterprise applications. It sits between I&C, OT infrastructure and data engineering. The engineer’s job is to keep operational information accurate, available, secure and traceable enough for operators, engineers and monitoring teams to trust.
There is no official salary series for nuclear plant information systems engineers, so TRX models the role across systems analysis, electrical engineering and industrial OT. US established specialists generally model around $100,000–$132,000, with senior/principal work at $125,000–$160,000. UK established specialists typically model around £50,000–£65,000, rising to £62,000–£80,000 senior/principal and higher for PI architecture or technical authority.
No single professional licence is required. Employers screen for historian administration, real-time data acquisition, industrial networking, interfaces/connectors, asset/tag governance, server resilience, backups, troubleshooting and cyber-aware change control. Nuclear adds site qualification, configuration management, patch evaluation, cyber-security reviews, outage/emergent support and strict separation between information systems and safety/control functions.
The role at a glance
everything an employer will ask about in the first fifteen minutes of a screening call.
- Also called
- plant data systems engineer · digital process systems engineer · PI system engineer · plant historian engineer · real-time information systems engineer · process computer engineer
- Entry qualification
- BEng/BSc in electrical, computer, instrumentation/control, software engineering, computer science or related discipline; industrial automation/OT experience is often more important than a narrowly defined degree title.
- Typical entry pay
- $78,000–$102,000 US · £42,000–£52,000 UK.
- Senior pay
- $125,000–$160,000 US · £62,000–£80,000 UK; historian/OT technical leads can reach approximately $190,000 or £95,000.
- Contract day rates
- approximately £450–£600/day UK established specialist and £600–£800/day for PI architecture, nuclear cyber or complex migration work; US equivalents approximately $60–$115/hr.
- Professional gate
- no universal licence; AVEVA PI depth, industrial data integration, OT cyber competence, nuclear qualification and employer system ownership are the practical gates.
- Security
- UK BPSS common, with SC/higher for sensitive plants or programmes; US unescorted nuclear-site access, cyber qualifications or DOE clearance may apply.
- Where the work sits
- operating nuclear stations, fleet monitoring centres, utilities, advanced-reactor developers, national laboratories, digital modernisation programmes and industrial data-system integrators.
- Travel
- low to moderate for station engineers; higher for fleet specialists, system integrators and multi-site migrations.
- Shift pattern
- primarily office/day based, but outage support, emergent plant issues, patching windows, backups or failed interfaces can require nights, weekends and on-call response.
- TRX segments
- Operating fleet · New technology development · SMR/advanced reactors · Digital engineering · Plant modernisation · Monitoring & diagnostics
Six versions of the same job title
plant information systems can mean the historian itself, the process-computer layer, the OT interfaces feeding it or the fleet applications consuming the data. The role boundary is defined by which operational information platform the engineer owns.
Plant historian / AVEVA PI engineer
Owns PI Data Archive, Asset Framework, PI Vision, interfaces, connectors, tag structures, buffering, backups, security and performance. The role keeps real-time plant data available and contextualised for engineering and monitoring users.
Nuclear digital process systems engineer
Supports site process computers, operator aid systems, emergency information systems, plant monitoring computers and associated networks. Duke Energy’s current nuclear role combines these systems with OSI/PI, cyber controls and operational troubleshooting.
OT data integration engineer
Builds and maintains data paths from PLCs, DCS, process computers and instrument networks into historians or engineering applications using OPC, interfaces and industrial protocols. The challenge is reliable acquisition without weakening OT security boundaries.
Monitoring & diagnostics data systems
Supports centralised monitoring centres that aggregate equipment-health and operating data from one or more plants. Asset models, data quality, alarm/event streams and high availability become more important as remote diagnostics expands.
Plant information application / visualisation engineer
Builds PI Vision displays, trends, calculations, event frames, reports and engineering applications around operational data. The role sits closer to users but still owns data lineage and platform behaviour rather than business intelligence alone.
Historian migration / architecture specialist
Leads upgrades, migrations, consolidations, high-availability design, disaster recovery and platform standardisation across sites. This is the most infrastructure-heavy version and usually appears at senior/principal level.
What the week actually looks like
a composite day for an established plant information systems engineer at an operating nuclear station, owning the PI historian and several connected process-information systems.
What plant information systems engineers are paid in 2026
Plant information systems engineering is a crossover role and is not separately coded in national wage statistics. The ladders below are a TRX market model anchored to BLS systems-analysis/electrical-engineering pay and current AVEVA PI / nuclear digital-process roles. Nuclear site qualification, cyber responsibility and historian technical authority create the strongest premiums.
How plant information systems compares to adjacent roles
The role crosses operational technology, engineering and IT. Computer systems analysts provide the closest official systems anchor, while electrical engineering better reflects nuclear I&C-heavy variants.
| Occupation | Median | P10 | P90 | What moves the number |
|---|---|---|---|---|
| Plant information systems engineer (nuclear, TRX model) | $138,000 senior midpoint | $78,000 | $175,000+ | PI depth, nuclear OT, cyber, architecture and system ownership |
| Computer systems analysts (BLS May 2025) | $105,850 | $67,340 | $167,710 | Industry, systems complexity and responsibility |
| Electrical engineers (BLS May 2025) | $120,630 | $76,550 | $184,300 | Sector, I&C/controls depth and technical authority |
| Network & computer systems administrators (BLS May 2025) | $99,130 | $62,640 | $155,050 | Platform ownership, infrastructure and on-call responsibility |
The role crosses operational technology, engineering and IT. Computer systems analysts provide the closest official systems anchor, while electrical engineering better reflects nuclear I&C-heavy variants.
AVEVA PI technical authority
Deep Data Archive, AF, Vision, interfaces, performance, backup and migration experience is portable across energy fleets and difficult to replace.
Nuclear OT/cyber integration
Engineers who can move data across plant security boundaries without weakening the cyber architecture carry a clear premium.
Fleet / monitoring-centre architecture
Multi-site historian standardisation, remote monitoring and disaster recovery create larger system consequences and higher-value technical ownership.
Three ways in
The main routes come from electrical/computer engineering, industrial automation or IT systems administration. The strongest nuclear careers add the missing side of the boundary: IT engineers learn plant systems, while I&C engineers learn servers, historians and data architecture.
Electrical / computer engineering route
Automation / controls route
IT / systems administration route
Are you actually ready to compete for a plant information systems engineer role?
“Worked with PI” is not enough. Recruiters want the platform components you owned, number and type of interfaces, tag/AF scale, cyber boundary, server architecture, high-availability design, outages supported and production incidents you resolved. Strong CVs show whether you administered a historian, built applications on top of it or merely consumed its data.
Free resume scoring on avua. Your score is yours; it is not shared with employers.The usual gap is ownership evidence: candidates list PI and SCADA but do not show architecture, interfaces, recovery, cyber controls or production support.
Illustrative TRX shortlisting pattern only.
The credentials that actually gate the work
the role is competence-gated by production-system ownership, nuclear qualification and the security controls governing operational data.
| Credential | Jurisdiction | Required for | Time | Notes |
|---|---|---|---|---|
| Electrical / computer / software engineering degree | All | Common professional entry | 3–4 yrs | Computer science and instrumentation/control routes also fit. |
| AVEVA PI System competence | All | Historian-heavy roles | Role-specific | Data Archive, AF, Vision, interfaces/connectors and system administration are the strongest signals. |
| Industrial OT / protocol competence | All | Control-to-information integration | Role-specific | OPC UA/DA, Modbus, DNP3, Ethernet/IP or vendor interfaces depending on plant. |
| Nuclear cyber-security competence | US / UK | Plant-connected information systems | Role-specific | Network zoning, patching, vulnerability review and controlled data flows matter. |
| Configuration / change management | All | Production nuclear systems | Role-specific | Software, servers, interfaces, firewall rules and tags must be controlled. |
| Nuclear site access / BPSS / SC | UK | Plant or sensitive-project work | Weeks–months | Requirement depends on operator and system access. |
| Unescorted access / DOE clearance | US | Operating plants / selected federal sites | Weeks–months | Duke’s current nuclear digital-process role requires nuclear plant unescorted access. |
AVEVA training is useful, but a production nuclear historian engineer is judged on uptime, integrity, recovery and safe change—not on product certification alone.
What appears on a 2026 plant information systems engineer shortlist
the shortlist tests whether the engineer can keep plant operational data available, meaningful and secure across the boundary between controls and enterprise/digital use.
Named on the specification
- AVEVA PI / industrial historian administration — PI Data Archive, Asset Framework, PI Vision, buffering, interfaces/connectors, archives, security, licensing and performance.
- Real-time data acquisition / interfaces — OPC, DCS/PLC/process-computer integration, interface nodes, data quality, timestamps, scan rates and communication troubleshooting.
- Windows/Linux server and infrastructure skills — services, event logs, backups, virtualisation, patching, certificates, storage, capacity and disaster recovery.
- Industrial networking / OT architecture — TCP/IP, firewalls, routing, segmentation, DMZs and safe movement of data between plant and business networks.
- Configuration and change control — controlled server builds, interface inventories, tag standards, software versions, backup/rollback and documented production changes.
- Operational troubleshooting — diagnosing failed data paths under time pressure while distinguishing source-system, network, interface, historian and client-application faults.
What decides between two shortlisted candidates
- Nuclear process-computer / ERFIS experience — direct ownership of plant monitoring, emergency response or operator-information systems.
- PI Asset Framework / contextualisation depth — scalable asset templates, event frames, analytics and governance rather than flat tag collections.
- Nuclear cyber-security — vulnerability reviews, defensive architecture, patch assessment and compliance with plant cyber programmes.
- High availability / disaster recovery — redundant archives/interfaces, tested restore procedures and resilient fleet architecture.
- Monitoring & diagnostics centres — remote fleet data aggregation, equipment-health platforms and centralised condition monitoring.
- Scripting / API / SQL automation — PowerShell, Python, PI Web API, SQL or equivalent for repeatable administration, data quality and integration.
The 2026 demand map
demand follows plant digital modernisation, centralised monitoring, advanced-reactor remote operations and the replacement of legacy process computers. In 2026, regulators and operators are increasingly focused on how operational data are collected and shared.
| Programme | Location | Phase in 2026 | Engineering demand |
|---|---|---|---|
| Duke Energy Oconee Nuclear Station digital process systems | South Carolina, US | Active 2026 digital process/system support hiring | Direct demand for OSI/PI, process computers, plant networks and cyber-aware engineering |
| Dominion Energy fleet data historian modernisation | Virginia / US fleet | 2026 data historian platform and time-series capability development | High for PI/historian administration, asset data and engineering use cases |
| NRC digital condition monitoring initiative | US | May 2026 stakeholder work on centralised M&D centres and data sharing | Growing demand for reliable plant-data platforms and remote monitoring architectures |
| INL LWRS plant modernisation | US operating fleet | Active modernisation R&D in digital I&C and advanced condition monitoring | High for real-time data capture, analytics platforms and plant information architecture |
| US operating-fleet digital I&C upgrades | Nationwide | Increasing digital modernisation to address analogue obsolescence | Sustained demand for process computers, data systems, networks and historian integration |
| Rolls-Royce SMR digital engineering / operations | UK | Detailed engineering and future digital operating model development | Growing demand for plant data architecture, monitoring and integrated information systems |
| Advanced reactor remote monitoring | US | Active regulatory/R&D work in remote and autonomous operations | High future demand for centralised data acquisition and monitoring infrastructure |
| EDF / UK nuclear digital operations | UK fleet | Ongoing fleet analytics, digital and monitoring capability | Sustained demand for secure operational data platforms and engineering information access |
| National laboratories / research reactors | US / international | Digital upgrades, experiments and remote monitoring | Specialist demand for real-time information, data acquisition and secure historian platforms |
Programme phases move, and rewinds are planned years ahead. Confirm current status before making a relocation decision; TRX tracks these weekly.
The NRC’s May 2026 work on centralised maintenance and diagnostic centres explicitly focuses on data collection and sharing among nuclear facilities.
INL’s modernisation programme likewise treats real-time operational data as an enabling layer for advanced monitoring and lower-cost operations. That makes historian and plant-information architecture more strategic than a back-office reporting function.
Traditional IT specialists can administer servers, and I&C engineers understand field/control systems.
The difficult hire can trace a bad data point from plant source to historian display, manage cyber boundaries, recover the platform after failure and explain the system to operations. That crossover is why experienced PI/OT engineers remain hard to replace.
Adjacent and onward roles
plant information systems engineering sits between I&C, OT infrastructure, data engineering and digital operations, so progression can deepen technically or broaden into architecture and cyber leadership.
Questions we get asked every week
How much does a plant information systems engineer earn in 2026?
There is no exact official nuclear salary series. TRX models US entry pay around $78,000–$102,000, established specialists at $100,000–$132,000 and senior/principal engineers at $125,000–$160,000. BLS reports a $105,850 median for computer systems analysts and $120,630 for electrical engineers. UK pay models around £42,000–£52,000 at entry and £62,000–£80,000 senior/principal; SSE’s current AVEVA PI Specialist role pays £64,085–£76,581. These figures reflect the growing demand for certified systems engineering professionals who maintain complex systems in nuclear environments.
Is AVEVA PI the most important platform for this role?
It is one of the strongest recurring tools in power and industrial operations. PI Data Archive, Asset Framework and PI Vision are particularly relevant, and Duke’s current nuclear digital-process role explicitly requires OSI/PI knowledge. Other historians such as Aspen IP.21, Honeywell PHD or vendor-specific plant systems also appear, so deep historian concepts transfer better than product memorisation alone. Expertise in data management and information technology is essential to develop and maintain these complex systems.
What is the difference between a plant information systems engineer and a data engineer?
The plant information engineer owns operational systems close to the OT environment: historians, interfaces, process computers, real-time tags, servers, availability and cyber-controlled data paths. A nuclear data engineer usually works further downstream on enterprise/cloud/HPC pipelines, analytical datasets and broader data products. The two roles overlap at the historian-to-analytics boundary. Strong technical skills, programming languages knowledge, and problem solving abilities distinguish these roles.
Do plant information systems engineers need I&C experience?
It is highly valuable but not always mandatory. The engineer must understand how data originate in sensors, PLCs, DCS or process computers and how plant changes affect tags and interfaces. IT/system administrators can transfer if they learn industrial control architecture and nuclear change control, while I&C engineers can transfer by adding servers, historians, networking and system administration. Cross functional teams often require these combined skill sets to maintain complex systems effectively.
Where is demand strongest in 2026?
Operating nuclear fleets are the clearest market because they are modernising legacy I&C, process computers and monitoring capability. Duke advertised direct nuclear digital-process support including PI systems in 2026; Dominion is modernising historian capability; INL’s LWRS programme continues plant digital modernisation; and the NRC is studying centralised condition monitoring and plant-data sharing. Advanced reactors create additional long-term demand for remote monitoring architectures. Demand for specialized knowledge in cloud computing, artificial intelligence, and machine learning is also rising.
What makes a plant information systems engineer stand out at interview?
A production outage or bad-data incident is strong evidence. Explain the source system, interface, network path, historian component, symptoms, diagnostic sequence, cyber/change constraints and how you restored trustworthy data without affecting plant control. Senior interviewers value candidates who can isolate the failure domain quickly and leave the platform better documented afterward. Demonstrating critical thinking, root cause analysis, and incident response skills is crucial.
We only recruit in nuclear. That is the whole point.
TRX can assess whether your experience fits AVEVA PI, process computers, plant historians, OT data integration, monitoring centres, digital modernisation or nuclear cyber-adjacent systems. The strongest evidence is the production platform you owned, the plant data path you understood and the availability, security or data-integrity problem you personally solved.