{"id":1485032,"url":"https://alion.io/job/salt-ai-prompt-engineer-contract","title":"AI Prompt Engineer – Contract","company":{"id":1935342,"name":"Salt","domain":"welovesalt.com","url":"https://alion.io/company/welovesalt","size_band":"201-500","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":{"grade":"A","score":95,"open_postings":1228,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":146,"computed_at":"2026-10-12T06:55:09Z"}},"role":"AI/ML","role_family":"AI/ML","seniority":null,"employment_type":"contractor","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":["GB"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":96000,"max_usd":256000,"period":"year","method":"role_country_seniority_unknown","sample_n":131},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false}],"status":"live","first_seen_at":"2026-04-29T00:00:00Z","employer_posted_date":"2026-04-29","last_verified_at":"2026-09-29T22:22:26Z","board_verified":false,"closed_at":null,"days_open":166,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":166},"description":"Back to all jobs\nApplications are now closed.\nAI Prompt Engineer - Contract\nRef: JO-2604-360565\nUnited Kingdom, London \n\nMarketing \n\nMarketing \n\n50 - 249 Employees \n\n£0.00 - £400.00 per day \n\nEnvironment:\n\nRemote \n\nContract Type:\n\nContract \n\nDuration:\n\n2 weeks \n\nSALT is supporting a specialist consultancy / digital content-led business that is building scalable AI-driven content capabilities.\nROLE OVERVIEW\nThis contract Prompt Engineer role focuses on designing, training, and refining an AI agent to consistently produce high-quality, search-optimised, publishable content. 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