Location
Hampton, London (Hybrid working)

Hours
36 hours per week, Monday to Friday

Salary
Up to £60,000 per annum, depending on experience

About the Role
We are seeking a technically driven, detail-oriented RTU Development Engineer to join Thames Water’s Operational Technology (OT) team. In this role, you will lead the development, deployment, and lifecycle management of Remote Terminal Unit (RTU) applications critical to Thames Water’s clean and wastewater networks. You will design, configure, optimise, and support standardised RTU architectures to enable secure, resilient, and scalable telemetry and automation systems across thousands of distributed assets.

Your responsibilities will include leading RTU application development and lifecycle management, executing the full software development lifecycle, writing clean and testable code using IEC 61131 languages, validating firmware and communication protocols, and supporting RTU architecture and integration frameworks. You will collaborate closely with engineering teams, operational stakeholders, system integrators, and suppliers to deploy and optimise RTU solutions.

Additionally, you will provide second-tier technical support and fault diagnostics, translate business requirements into technical specifications, manage RTU documentation and standards, and ensure RTU systems comply with quality, safety, and cybersecurity standards. This role offers the opportunity to contribute to the operational resilience of Thames Water’s infrastructure and work within a collaborative, fast-paced environment.

Experience
- Proven experience in RTU programming, configuration, and lifecycle management.
- Demonstrable experience deploying and maintaining RTU systems in operational environments.
- Strong technical troubleshooting and fault resolution skills.
- Experience working with SCADA and OT systems in utilities or similar industries.
- Ability to balance competing priorities and make technical decisions in fast-paced settings.

About you
- Technically driven and detail-oriented with excellent problem-solving skills.
- Collaborative team player able to work with diverse stakeholders including vendors and internal teams.
- Strong communication skills with the ability to translate technical content into business-relevant language.
- Committed to quality, safety, and compliance standards.
- Holds a full UK driving licence.

Qualifications
- HND or equivalent qualification in a technical discipline such as Electrical, Control Systems, or Automation.
- Proficiency with RTU and SCADA platforms including Serck, Schneider, Brodersen, Rockwell, Xylem, ClearSCADA, Wonderware, and FT View.
- Programming knowledge of IEC 61131-3 languages (LD, FBD, SFC, ST, IL) and structured industrial software development.
- Strong understanding of telemetry protocols such as DNP3, WITS DNP3, Modbus, and MQTT.
- Familiarity with Windows OS, virtualisation, cyber-secure network architectures (IP, VPN, LAN/WAN).
- Experience with relational databases and historian platforms (e.g. Oracle, SQL, PI, Wonderware Historian).

Desirable
- Experience in customer relationship management.
- Knowledge of OT systems in water, utilities, or infrastructure sectors.
- Understanding of OT system methodologies, architectures, and industry standards.
- Awareness of cyber-physical systems and their role in critical infrastructure resilience.