{"id":1159807,"url":"https://alion.io/job/assystem-planner-3","title":"Planner","company":{"id":5278,"name":"Assystem","domain":"assystem.com","url":"https://alion.io/company/assystem","size_band":"5000+","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"SmartRecruiters","truth_index":{"grade":"B","score":75,"open_postings":180,"ghost_share":0,"stale_share":0.994,"repost_share":0,"time_to_fill_p50_days":27,"computed_at":"2026-09-27T05:45:00Z"}},"role":"Operations","role_family":"Operations","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Derby, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":53000,"max_usd":99000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":25},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Microsoft Office","optional":false}],"status":"live","first_seen_at":"2026-09-23T11:44:56Z","employer_posted_date":"2026-09-23","last_verified_at":"2026-09-28T01:58:35Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"Today, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements.\nAssystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions.\n As the Assystem’s Defence Infrastructure account continues to grow, we are looking to recruit a dynamic, self-motivated Project Planner to support project delivery.\nWorking alongside the Defence Infrastructure Project Manager(s) and PMO function, the Project Planner is the local point for all aspects of planning across the Defence Infrastructure portfolio.\nThis role will be based at our Assystem offices in either Derby or Newcastle, with ad-hoc travel to client and other Assystem offices as required. Assystem are currently implementing our ‘new normal’ flexible working model, which will continue to support a mixture of home and office working across the business.\nYour missions:\nResponsible for planning - production and management of project schedule(s), both internally and externally.\nCoordination of work packages to schedule, tracking progress vs schedule, resource planning, coordination of sub-contractors.\nReview and approval of sub-contractor programmes.\nInterface with stakeholders to identify and report on progress, change, risks and opportunities.\nInput to proposals relating to manhour estimates and planning.\nProduce concise, accurate reports of project metrics including critical path analysis to the Defence Infrastructure Lead Team.\nWhy join the community of Switchers?\nAs one of the Top 3 Nuclear Engineering companies in the world, Assystem offer a competitive benefits package which includes:\n25 days of annual leave + bank holidays\n8% company pension contributions\nHealthcare cash-plan to get money back on dental, medical, physical care\nEmployee assistance programme including 24/7 access to free mental health support, virtual gym classes and more\nGet professional and industry membership fees paid for.\n Essential skills and behaviours\nPrimavera P6 to intermediate level (essential)\nStrong skills in MS Office, especially Excel and Project\nSelf-motivated and able to work to deadlines without direction/supervision\nGood communicator able to provide a clear, concise and accurate summary of project progress, risks to the critical path and metrics\nAble to confidently engage with sub-contractors and critically review the accuracy of sub-contractor submissions\nAttention to detail\nQualifications\nDegree preferred, or other equivalent qualification\nPrimavera P6 training\nProject Management qualification (e.g. APM) would benefit\nExperience\nExperience as a project planner on NEC4 Contracts is essential (particularly Option A and Option C)\nMajor infrastructure design and build project background highly desirable\nExperience of working in the Nuclear or Defence Industry is highly desirable\n Please be aware that many roles at Assystem are subject to both security and export control restrictions.\nThese restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation.\nAll applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role, to allow for meaningful security vetting checks.\nWe will consider Inside IR35 Contractors or permanent staff.\nWe are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.\nNOTICE TO CANDIDATES ON RECRUITMENT FRAUD - We are committed to safeguarding candidates from fraudulent activity associated with our recruitment process. Please note that we will never offer specialist CV writing services, request payment or ask for sensitive personal information during the recruitment process.\nNOTICE TO CANDIDATES ON RECRUITMENT FRAUD - We are committed to safeguarding candidates from fraudulent activity associated with our recruitment process. Please note that we will never offer specialist CV writing services, request payment or ask for sensitive personal information during the recruitment process.\nWe are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.","description_format":"text","description_chars":5275,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"All levels","optional":false}]},"benefits":["Annual leave","Flexible schedule"],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Nuclear Engineering","Military"],"lifecycle":[{"event":"open","at":"2026-09-23T23:14:51Z"}],"liveness":{"score":63,"band":"ok","label":"Likely open","p_open":1,"p_active":0.632,"p_room":1,"age_days":3,"expected_fill_days":27,"reasons":["conf:5","stale_co","velocity","win:early","comp:brand"],"computed_at":"2026-09-27T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/assystem-planner-3","json_url":"https://alion.io/job/assystem-planner-3.json","meta":{"generated_at":"2026-09-28T04:33:06Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":2825,"day_limit":5000,"remaining_today":2175,"minute_limit":60,"resets_at":"2026-09-29T00:00:00Z"}}}