{"id":3288261,"url":"https://alion.io/job/exadel-seniorlead-full-stack-software-engineer-python-react-ai","title":"Senior/Lead Full-Stack Software Engineer (Python, React, AI)","company":{"id":713122,"name":"Exadel","domain":"exadel.com","url":"https://alion.io/company/exadel-3","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Poland"],"countries":["PL"],"hiring_countries":["PL"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":82000,"max_usd":139000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":30},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Azure","optional":false},{"name":"FastAPI","optional":false},{"name":"Hybrid Search","optional":false},{"name":"Langfuse","optional":false},{"name":"LLM","optional":false},{"name":"Microsoft Entra ID","optional":false},{"name":"OpenAI","optional":false},{"name":"Prompt Engineering","optional":false},{"name":"Python","optional":false},{"name":"RAG","optional":false},{"name":"Structured Outputs","optional":false},{"name":"TypeScript","optional":false},{"name":"AI Agents","optional":true},{"name":"Claude","optional":true},{"name":"GDPR","optional":true},{"name":"Model Context Protocol","optional":true}],"status":"closed","first_seen_at":"2026-10-26T17:27:13Z","employer_posted_date":"2026-10-26","last_verified_at":"2026-10-28T08:22:54Z","board_verified":false,"closed_at":"2026-10-28T08:22:54Z","days_open":1,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":1},"description":"Why Join Exadel \nWe’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks.\nFrom AI platforms to digital transformation, we partner with enterprise leaders to build what’s next.\nWhat powers it all? Our people are ambitious, collaborative, and constantly evolving.\nWhat You’ll Do \nDesign, develop, and deliver full-stack applications using Python, FastAPI, React, and TypeScript\nBuild and deploy LLM-powered applications to production using RAG, prompt engineering, structured outputs, and OpenAI APIs\nImplement vector and hybrid search solutions and document processing for PDF, Word, and Excel files\nEvaluate, monitor, and improve LLM application quality using Langfuse or similar tools\nDevelop and maintain applications on Azure, including app hosting, VMs, and authentication integrations\nCollaborate directly with clients, lead sessions with senior non-technical stakeholders, and communicate progress clearly\nTranslate ambiguous business needs into practical technical solutions\nWhat You Bring\nStrong experience with React, TypeScript, and Python, including FastAPI or similar frameworks\nProven experience delivering at least one LLM-powered application to production\nHands-on experience with RAG, prompt design, structured outputs, and OpenAI APIs\nExperience with vector or hybrid search and parsing PDF, Word, and Excel documents\nFamiliarity with LLM evaluation and observability tools such as Langfuse\nWorking knowledge of Azure, including VMs, application hosting, and Entra ID / SSO\nStrong client-facing communication and problem-solving skills\nNice to Have\nMCP server development or Claude / AI agent integrations\nExperience with PII protection, GDPR, and EU data residency, including tools such as Presidio\nBackground in finance, private equity, or M&A due diligence\nEnglish level\nUpper-Intermediate\nLegal & Hiring Information \nExadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more.\nReasonable accommodations are available to enable individuals with disabilities to perform essential functions.\nPlease note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs.\nCompensation details are shared with candidates at the early stage of the recruitment process.\nThe offer is not binding until a signed contract is in place.\nYour Benefits at Exadel \nExadel benefits vary by location and contract type. Your recruiter will fill you in on the details.\nInternational projects\nIn-office, hybrid, or remote flexibility\nMedical healthcare\nRecognition program\nOngoing learning & reimbursement \nWell-being program\nTeam events & local benefits \nSports compensation \nReferral bonuses \nTop-tier equipment provision\nExadel Culture\nWe lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. 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