Controls Engineer-Houston, TX

Controls Engineer
Houston, TX | Onsite | 6+ Month Contract

iSphere is looking for a Controls Engineer who knows that when it comes to Safety Instrumented Systems, "close enough" isn''t a thing.

This role is all about accuracy. You''ll support large-scale validation efforts by comparing control system documentation, verifying SIS tags, cleaning data, and making sure everything lines up exactly the way it''s supposed to. It''s part engineering, part detective work, and part making sure thousands of tags don''t decide to play hide-and-seek.

If you enjoy digging into data, spotting inconsistencies others miss, and bringing order to organized chaos, you''ll fit right in.

What they''re really looking for:

• Experience with Safety Instrumented Systems (SIS), DCS, PLCs, and industrial control systems
• Strong Excel skills and experience working with large datasets
• Experience validating instrumentation and control system documentation
• Exceptional attention to detail and data accuracy
• Strong organizational and documentation skills
• Ability to identify discrepancies and clearly document findings
• Strong written communication skills for reporting issues and project status

You''ll spend your time:

• Populating and maintaining Digital Cause & Effect (DiCE) metrics tables
• Cleaning, organizing, and validating large volumes of engineering data
• Comparing Cause & Effect documentation against instrument lists, I/O lists, and logic narratives
• Identifying missing tags, naming inconsistencies, duplicate entries, and documentation errors
• Validating SIS and control system tags across multiple engineering documents
• Tracking validation progress and supporting project milestones
• Escalating complex issues with clear documentation and supporting evidence

The right person for this role doesn''t mind repetitive work because they understand why it matters. They know one incorrect tag or overlooked discrepancy today can become a much bigger problem tomorrow.

If you''re the type who catches the one typo in a thousand-line spreadsheet, enjoys making messy data make sense, and likes knowing your work helps keep critical systems accurate and reliable, we''d like to talk with you.