Space industry role
Senior Project Planner
About the role
About the role
We're seeking an experienced Senior Project Planner to complement our team at Lockheed Martin UK – Strategic Systems based from Helensburgh. This role benefits from our 4xFlex working pattern, offering a4-day working week Monday - Thursday and hybrid working with typically 1-2 days a week working from home.
As our Senior Project Planner you'll play a key role in developing the future planning architecture for LMUK SS contract outputs. You will work alongside senior stakeholders to bridge the gap between high-level strategy and daily operations. You will take ownership of this complex project lifecycle, from proposal to execution, helping deliver some of the UK’s most complex and innovative engineering programmes.
Key Responsibilities
- Lead and coordinate the end-to-end lifecycle of planning and schedule management in support of programme capture and execution.
- Refine and manage the Integrated Master Plan for LMUK SS’ contract renewal effort.
- Lead proposal preparation planning, including development of planning artefacts for solicitation response. Interfaces with program management, senior management and the contractual customer as the programs planning integrator.
- Manage the validation of cost and schedule integration for effective program performance management.
- Proactively identify commercial risks, establish mitigation strategies, and adjust timelines as needed
- Gather progress data and generate robust reports tracking actuals against baseline forecasts.
- Ensure all deliverables are compliant with LM's command media.
- Manage the resolution of schedule conflicts, develops and implements work-around strategies and tactical alternatives.
- Support to business rhythms.
- Manage the generation of Schedule Information for client and management reviews.
Why You’ll Love Working Here
- Hybrid working – 1-2 days per week working from home
- Collaborative culture – work alongside some of the brightest minds in UK engineering.
- Be part of an organisation delivering cutting-edge Defence and technology programmes that make a real impact.
The successful candidate must achieve the appropriate level (DV) of security clearance.
Required skills, qualifications and experience
- Significant experience as Senior Project Planner or similar Project Planning role
- Experience of Microsoft Project, or similar Project Planning software
- Experience of managing Resource loaded Schedules
- Awareness of Earned Value Management and Critical Path Management
- A confident individual who will ensure that best planning practice is always adhered to, even in occasional pressurised situations
- Excellent oral and written communication and presentation skills
- Ability to quickly adapt to new tools, systems, and processes
Desired Skills
- Experienced in Earned Value Management
- Experience of cost planning & reporting
- Background in Defence, MoD, or other complex engineering environments
Copied from the listing Lockheed Martin published, verified 31 Oct 2026.
About Lockheed Martin
Lockheed Martin Space builds GPS and missile warning satellites, NASA's Orion crew capsule and deep space probes.
Similar open roles

Manager, Information Security Management (opens the job details)
SES · Software & IT · Bucharest, Romania· 1d agoDetails

Security Officer (opens the job details)
Blue Origin · Supply Chain · Greater Seattle Area· 2w agoDetails
$21.03–$29.44/hr
Dream Chaser Flight Controller (Systems Engineer II) (opens the job details)
Sierra Space · Launch & Ops · Louisville, CO, United States· 4mo agoDetails
$94,090–$129,394.75/yr

Chief Information Security Officer (CISO) (opens the job details)
Ursa Major · Software & IT · Longmont, Colorado, United States· 1w agoDetails
$240,000–$300,000/yr
Want companies to ask for you?
Space employers come to us looking for a particular skill, location or credential. Leave your details one time, at no cost, and we put you forward when a role matches, never without your yes.
Lockheed Martin openings, sent to your inbox
Each week we send what Lockheed Martin posted since the last email, with comparable openings at other space companies. No cost, and you can stop it with one click.
Hiring for Lockheed Martin? Feature this role to get a marked Featured slot above the lists and the lead place in the weekly job email for 30 days. Pricing:$99 for a single role, or $299 to cover every role you have open. To see who else is hiring your disciplines and at what pay, read the monthly space hiring brief.