Senior Software Engineer

Senior Software Engineer

Tadcaster, UK

Are you an experienced automation software engineer who thrives on solving complex problems and seeing your work come to life on real machines?

At Mpac, we design and build cutting‑edge, bespoke packaging automation for some of the world’s leading brands across Healthcare, Food & Beverage, and Pharma. We’re now looking for a Senior Software Engineer to take a leading role in delivering high‑quality control software for our specialist machinery.

The Role

As a Senior Software Engineer, you’ll design, implement, document, and commission control software for bespoke automation equipment. You’ll take ownership of smaller software projects end‑to‑end and play a key role within larger, multi‑disciplinary teams.

You’ll be trusted to lead software workstreams, produce clear and robust Software Design Specifications (SDS), conduct formal Source Code Reviews (SCRs), and support commissioning activities both in‑house and at customer sites (FAT/SAT). Occasional travel may be required and will always be planned in advance.

What You’ll Be Doing

• Lead software development for assigned projects, ensuring alignment with SDS and functional requirements
• Produce and maintain clear, accurate Software Design Specifications
• Conduct formal Source Code Reviews, providing constructive and actionable feedback
• Independently deliver software on smaller automation projects from concept to sign‑off
• Support and often lead commissioning activities (in‑house and on site)
• Collaborate closely with Principal Engineers, Project Managers, and cross‑discipline teams
• Mentor and support junior engineers, sharing best practices and technical expertise

What Success Looks Like

• High‑quality SDS documents that guide effective implementation
• Software delivered on time and to specification
• Successfully commissioned systems with documented testing
• Meaningful contributions to SCRs and team development
• A positive mentoring impact on junior engineers

What You’ll Bring

Essential experience

• Advanced experience in automation software delivery and commissioning
• Proven ownership of software delivery on smaller projects
• Strong ability to document and communicate complex software behaviour
• Experience integrating safety into automation systems

Technical skills

• Advanced PLC/HMI programming (e.g. Siemens TIA Portal, Rockwell Studio 5000)
• Strong SDS writing capability and experience leading SCRs
• Structured and disciplined approach to documentation

Desirable

• Experience with bespoke or one‑off machinery
• Integration of robotics or vision systems
• Familiarity with motion control tuning and diagnostics
• Version control experience
• Degree in Software, Electrical, or Controls Engineering

Why Mpac?

At Mpac, our engineers are at the heart of everything we do. We value:

• Integrity – doing the right thing
• Drive – pushing boundaries
• Collaboration – working better together
• Expertise – being leaders in our field
• Innovation – building the future of automation

You’ll join a global organisation with manufacturing sites in the UK, US, Canada, and the Netherlands, delivering high‑performance automation solutions to customers worldwide.

Ready to make an impact?

If you’re passionate about automation, enjoy technical leadership, and want to work on truly bespoke machinery, we’d love to hear from you.

Apply now and help shape the future of automated packaging.