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Central Indiana or Bluffton, Ohio | Updated on June 19, 2026

Controls System Engineer III

About the Role

We’re seeking a Controls System Engineer III to join our Instrumentation & Controls team. In this role, you’ll work on automation systems that directly support communities by helping keep water and wastewater systems running reliably. From troubleshooting systems in the field to modernizing SCADA environments, you’ll play a key role in delivering solutions to our clients and communities. 

This is a position where you’ll see projects from start to finish, solve impactful problems, and be part of a tight-knit team that supports one another. You’ll join an employee-owned organization with long-standing tenure and a strong commitment to supporting and developing its employees. 

Key Responsibilities 

As a Controls System Engineer III, you’ll be a key contributor on SCADA and controls projects from concept through commissioning: 

  • Lead the design, programming, and configure PLC and HMI systems 
  • Develop and Support SCADA system design, implementation, and upgrades 
  • Troubleshoot instrumentation and control systems in the field 
  • Develop control panel designs and schematics 
  • Lead performing system testing, validation, and startup / commissioning activities 
  • Deliver reliable, high-quality systems to clients 

What we are looking for  

  • Strong written and verbal communication skills, with the ability to collaborate effectively with project teams and clients 
  • Ability to build and maintain professional relationships while representing the company in a client-facing role 
  • A proactive, problem-solving mindset with strong attention to detail and a commitment to delivering high-quality work 
  • Bachelor’s degree in Engineering (Electrical, Mechanical, or related field) from an accredited college or university is preferred but not required with a long tenure of on-the-job experience. 
  • 10+ years of experience in controls, automation, or SCADA systems, with increasing responsibility on complex projects 
  • Strong experience with PLC programming and configuration (e.g., Allen Bradley RSLogix/Studio) 
  • Experience developing and configuring HMI and SCADA systems, including platforms such as Ignition, VTSCADA, GE iFix, or AVEVA Wonderware 
  • Proficiency in control panel design, including electrical schematics, IO layouts, and panel configurations (AutoCAD experience preferred) 
  • Ability to interpret and develop control narratives and sequences of operations 
  • Experience performing system testing, validation (FAT/SAT), and startup/commissioning activities independently 
  • Strong troubleshooting skills with instrumentation and field control systems 
  • Ability to manage multiple priorities, work within project budgets and schedules, and deliver high-quality results 

Why join us? 

  • Work-life balance – Flexible schedules, hybrid options, and local travel help you balance your career with life outside of work. 
  • A team that has your back – A collaborative, tight-knit group where everyone is willing to help and share knowledge 
  • Strong leadership team – Managers who trust their teams, invest in growth, and create a positive work environment.  
  • Meaningful, varied work – Take on a wide range of projects while helping restore systems, improve reliability, and deliver solutions that directly impact communities. 
  • Growth and development – Ongoing support for training, learning, and long-term career advancement 
  • See your impact – Work on projects from concept through completion and experience the reward of solving real problems 

About Wessler

Wessler Engineering, a company committed to providing quality services that exceed our client’s and our employee’s expectations, is looking for you. An employee owned business since its inception in 1975, Wessler Engineering offers a challenging and diverse employment opportunity in an excellent working environment.

Benefits

Wessler Engineering offers a competitive wage, paid holidays, paid employee health and disability insurance, and 401(k) profit-sharing.

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