> Markdown version of [/jobs/ext/3856962-si-engineer](https://www.wearedevelopers.com/jobs/ext/3856962-si-engineer). 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). --- # SI Engineer - **Company:** M Group Services - **Location:** Warrington, UK - **Experience:** Expert - **Salary:** £47,000.0 - £60,000.0 - **Contract:** Permanent contract - **Skills:** Supervisory Control and Data Acquisition (SCADA), Reverse Engineering, Software Systems - **Published:** October 22, 2026 - **Apply:** https://www.jobs.service.gov.uk/jobs/6ad97a6c3a55e246cfa8120f/apply ## About the Role Experience with Rockwell, Mitsubishi, Siemens or Schneider control system hardware and software (minimum of two platforms). - Proven experience within the water and wastewater treatment sector, delivering complex control and automation projects. - Ability to interpret client asset standards, user requirements and translate them into effective control solutions. - Experience reverse engineering existing control software and producing accurate technical documentation. - Strong communication, project management and commercial awareness, with a full UK driving licence. ## Description Right across infrastructure, there's a requirement to not only maintain, but also renew and re imagine. Whatever stage you're at in your career, with us you'll have an opportunity to grow and develop. Delivering essential infrastructure services for life, while being safety first, and client and customer centric in a friendly, fun and respectful environment where you are encouraged to thrive., As an I&C Design Engineer, you will be responsible for delivering control system projects throughout the full project lifecycle, from initial design and development through to testing, commissioning and final handover. You'll develop PLC, HMI and SCADA software solutions, produce and maintain high-quality technical documentation, and support the reverse engineering of existing control systems to create accurate design records. Working closely with multidisciplinary teams, you'll ensure solutions are delivered safely, efficiently and to the highest quality standards, while also providing technical guidance and mentoring to colleagues across the business.