Field Network Engineer
Job Description
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Compensation Grade: ONS-USD-34
Who We Are
INEOS Energy is the energy division of INEOS, we produce and trade oil, gas, power, liquefied natural gas (LNG) and carbon credits. Operating across the Danish and UK North Sea with offshore oil & gas assets and onshore assets in South Texas, US. This is supported by our investments and projects in low carbon technologies, which will help sustain our business through the energy transition. The key focus for the US Onshore business is to acquire, explore and develop properties to produce natural gas, oil and NGL from underground reservoirs safely and efficiently. Key operated assets are in the Eagle Ford shale basin in South Texas. With over 2,000 well producing net 36kBOE per day. Owning and operating producing US onshore assets is part of INEOS Energy’s strategy to build a global integrated portfolio, fit for the energy transition, offering high-quality energy solutions to its customers.
About the job
Job Title: Field Network Engineer
Department: Information Technology
Summary of Position: The Field Network Engineer is a hybrid role that supports the critical network infrastructure that enables INEOS’ oil & gas operations across the Eagle Ford basin in South Texas, as well as the end user technology that enables INEOS’ greatest asset, our people. You’ll architect and maintain IT & OT networks, ensure resilient SCADA and telemetry communications, and provide field‑level support for users and operational teams. You’ll be an integral part of a large IT team that supports all end user technology, office technology, and core infrastructure.
Primary Job Responsibilities
Network Engineering (75%):
- Design, deploy, and maintain LAN/WAN infrastructure across field offices and oilfield sites.
- Configure and manage edge and core firewalls.
- Implement and support VPN/IPsec connectivity.
- Utilize cellular private APN networks.
SCADA & Telemetry Networking:
- Support and optimize SCADA and telemetry communications.
- Integrate RTUs, PLCs, and edge devices.
- Work closely with I&E and operational teams.
Security, Reliability & INEOS Operational Discipline:
- Use proper network segmentation and secure remote access to build secure networks aligned to IEC 62443.
- Maintain device inventory and standards.
- Participate in incident response.
- Document systems clearly and efficiently.
Field Operations Support & Continuous Improvement:
- Troubleshoot IT/OT network and SCADA issues.
- Maintain diagrams and SOPs.
- Implement monitoring and alerting.
End-User Support:
- Provide on-site technical support to field personnel.
- Support laptops, tablets, handhelds, HMIs, and applications.
- Troubleshoot user connectivity to SCADA dashboards and tools.
- Assist with device setup and patching.
- Train field users on troubleshooting steps.
Education & Experience:
- 5–8+ years IT/OT engineering or network roles.
- Relevant degree or equivalent experience.
- Preferred certifications: CCNA/CCNP, CMSS, GICSP, IEC 62443, AZ‑700.
- IT/OT networks in industrial environments.
- Experience with cellular APNs, industrial cellular modems/routers, edge & core firewalls.
- SCADA or telemetry support.
- General Windows and end user hardware support.
- ITSM practices including ticketing, knowledge base, change management, and CMDB.
Travel & Additional Requirements:
Work Location: Work is performed at both field and office locations.
Schedule: 9/80
Travel required to INEOS field locations. INEOS is a drug free workplace. All offers to successful candidates will be subject to successful background check and drug screen.
Relocation: Preferential treatment will be granted to candidates residing in San Antonio and/or the surrounding areas.
Work Authorization: INEOS USA Oil & Gas LLC is not currently sponsoring employment visas for this position.
Notice To Third Party Agencies:
INEOS does not accept unsolicited resumes from recruiters, employment agencies, or other staffing services. Unsolicited resumes include any resume or hiring document sent to INEOS in the absence of a signed Service Agreement where INEOS has expressly requested recruitment/staffing services specific to the position at hand. Any unsolicited resumes, including those submitted to hiring managers or other business leaders, will become the property of INEOS and INEOS will have the right to hire that candidate without reservation – no fee or other compensation will be owed or paid to the recruiter, employment agency, or other staffing service.
About INEOS:
INEOS is a world class chemical company whose products touch every aspect of modern day life. Our company is comprised of 36 businesses with 194 sites in 29 countries throughout the world. We also have interests in consumer brands and sports on a global level. Safety is our number one core value. We also take pride in our culture of diversity, inclusion, sustainability and giving to the communities in which we live. To learn more about our company and the story of our heritage, go to www.ineos.com.