Senior Software Engineer

Location: Hybrid / Tadcaster LS24, UK
Job type: Permanent / Full-time
Sector and subsector: Engineering | Design
Salary: Negotiable salary

Purpose of the Role

To design, implement, document, and commission control software for bespoke automation machinery. The Senior Software Engineer is responsible for writing Software Design Specifications (SDS) documents, leading smaller software projects, conducting Source Code Reviews (SCRs), and supporting commissioning independently or as part of a larger team.

There may be occasions where travel to customer sites is required but will be planned in advance.

• Lead software development for assigned projects, ensuring code aligns with the SDS and meets functional requirements.
• Write and maintain SDSs that clearly define how the software will function.
• Conduct formal SCRs and provide feedback to peers and junior engineers.
• Independently lead software work streams on smaller automation projects.
• Support and often lead commissioning efforts both in-house and on-site (FAT/SAT).
• Collaborate with Principal Engineers and cross-discipline teams to ensure systems are delivered to spec and on time.
• Mentor junior engineers on technical development and best practices.

• Complete and accurate SDS documents used to guide implementation.
• Delivered software systems on-time and on-specification for smaller projects or subsystems of larger projects.
• Completed SCRs with actionable feedback as per Mpac process.
• Commissioned systems and documented testing.
• Mentoring contributions and training support for junior staff.

Mpac Core Values

• Advanced experience in automation software, including project delivery and commissioning.
• Experience running software delivery on smaller projects from specification to sign-off.
• Proven ability to document and communicate complex software behaviour through SDS.
• Experience integrating safety into automation systems and machines.
• Experience working on bespoke or one-off machinery.
• Experience integrating robotics, or vision systems into automation software.

• Advanced PLC/HMI development (e.g., Siemens TIA Portal, Rockwell Studio 5000).
• Strong skills in writing SDS and leading SCRs.
• Experience using structured documentation processes.
• Familiarity with motion control tuning and diagnostic tools.
• Experience using version control systems.
• Degree in Software, Electrical, or Controls Engineering.

Reports to:

Software TL / Controls Manager

Working relationships with:
Mechanical & Electrical Engineering, Production and Build, Commissioning, Project Managers.