> Markdown version of [/jobs/ext/3525134-programmer-iii](https://www.wearedevelopers.com/jobs/ext/3525134-programmer-iii). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Programmer III - **Company:** Keystone Engineering Group, Inc. - **Location:** Lewes, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Adobe InDesign, Control Panels, Human-Computer Interaction, Ladder Logic, Microsoft Office, Structured Text, Information Technology, Citect SCADA Software, Win CC - **Published:** October 1, 2026 - **Apply:** https://www.apply4u.co.uk/jobs/programmer-iii/49450782 ## About the Role Keystone Engineering Group, Inc. is a Professional Engineering Firm and Systems Integrator with 25+ years of experience in Design and Design-Build services for Water, Wastewater, and private industries. We have five offices located inSoutheastern Pennsylvania, Northeastern Pennsylvania, New Jersey, Lewes Delaware, and Seaford Delaware. Keystone has cultivated a strongemployee and clientcentered environmentwhere employees are valued, respected, and supported. Our team effectively workstogether to deliver projects on time and on budget. Required Qualifications: Associate's or Bachelor's degree in Electrical Engineering, Computer Science, or a related field 5-8 years of experience in PLC/OIT/HMI programming or related roles Knowledge of I&C Systems used in water / wastewater industry a plus Advanced knowledge of PLC programming languages (e.g., Ladder Logic, Function Block, Structured Text) and HMI software. Strong analytical, problem-solving, communication, organizational, and time management skills Strong leadership and mentoring skills Ability to prioritize tasks, and show close attention to detail Possess strong interpersonal skills and approachability in demeanor to work effectively with peers and clients Ability to work independently to meet deadlines and stay within budget parameters on an ongoing basis Proficient in Microsoft Office Suite Responsibilities: Program and integrate moderate to advanced control systems including the following software types: PLC, OIT, HMI, Reporting, and Alarming Development of PLC, OIT, and SCADA system programs Conduct troubleshooting of field control systems Provide technical support in resolving equipment and process issues Ability to conduct startup activities independently Compile a standard report of completed actions for regular submission to the Programming Manager Understand control panel drawings, network drawings, and I/O lists prepared by others with ability to identify needs for corrections. Participate in QC review