{"id":2346212,"url":"https://alion.io/job/cognizant-senior-data-engineer","title":"Senior Data Engineer","company":{"id":85,"name":"Cognizant","domain":"cognizant.com","url":"https://alion.io/company/cognizant","size_band":"5000+","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"Cognizant Careers","truth_index":{"grade":"B","score":78,"open_postings":92,"ghost_share":0,"stale_share":0.891,"repost_share":0,"time_to_fill_p50_days":22,"computed_at":"2026-10-13T05:45:00Z"}},"role":"Data Science","role_family":"Data Science","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Burgess Hill, United Kingdom"],"countries":["GB"],"hiring_countries":["GB"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":50000,"max_usd":105000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":8},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Azure","optional":false},{"name":"Copilot","optional":false},{"name":"JavaScript","optional":false},{"name":"LLM","optional":false},{"name":"OpenAI","optional":false},{"name":"Prompt Engineering","optional":false},{"name":"React.js","optional":false},{"name":"TypeScript","optional":false}],"status":"live","first_seen_at":"2026-10-12T05:11:36Z","employer_posted_date":"2026-10-12","last_verified_at":"2026-10-13T23:43:56Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"Role: Senior Data Engineer - AI/LLM Applications\nLocation: Burgess Hill (3 days a week)\nEmployment: Fulltime\nRole Overview\nWe are seeking a Data Engineer with experience in modern web technologies and AI/LLM integration to develop scalable applications and intelligent solutions. The role will focus on building interactive user interfaces, integrating AI capabilities and delivering AI-powered applications, including chatbots, assistants and intelligent workflows.\nKey Responsibilities\nDevelop responsive and scalable applications using React.js, TypeScript, HTML5, CSS3 and JavaScript.\nBuild reusable UI components and implement modern frontend development patterns.\nIntegrate AI/LLM technologies, including OpenAI, Azure OpenAI, Microsoft Copilot and agentic AI frameworks, into web applications.\nDesign and develop AI-powered chatbots, virtual assistants, recommendation engines and intelligent workflows.\nCollaborate with backend teams to integrate AI services, APIs and business logic.\nImplement prompt engineering, AI response handling and conversational user interfaces.\nOptimise application performance, scalability, security and reliability.\nParticipate in architecture discussions and contribute to AI solution design.\nTroubleshoot, debug and maintain 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