{"id":4159049,"url":"https://alion.io/job/one-zero-backend-developer-ai-team","title":"Backend Developer – AI Team","company":{"id":1953591,"name":"One Zero","domain":"onezerobank.com","url":"https://alion.io/company/onezerobank","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Comeet","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Tel Aviv, Israel"],"countries":["IL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agentic Workflows","optional":false},{"name":"AI Agents","optional":false},{"name":"AIOps","optional":false},{"name":"Claude Code","optional":false},{"name":"Cursor","optional":false},{"name":"Function Calling","optional":false},{"name":"LangChain","optional":false},{"name":"LangGraph","optional":false},{"name":"LLM","optional":false},{"name":"Machine Learning","optional":false},{"name":"OpenAI Codex","optional":false},{"name":"Prompt Engineering","optional":false},{"name":"Python","optional":false},{"name":"RAG","optional":false},{"name":"Structured Outputs","optional":false}],"status":"live","first_seen_at":"2026-11-12T11:07:12Z","employer_posted_date":"2026-11-12","last_verified_at":"2026-11-12T11:37:03Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Description\nONE ZERO is Israel’s fully digital, branchless private bank-created to bring private-banking level service to a broader public through advanced technology, automation, and AI.\nBuilding on this mission, we’re developing multiple versions of Ella -GenAI-powered banking copilots tailored to different needs and use cases-to make money management simpler, smarter, and more proactive, delivering personalized financial insights while maintaining the trust, safety, and reliability expected from a regulated bank.\nElla (Tech): Production-grade, AI-powered banking platforms built around multiple types of agentic workflows, LLMs, real-time financial data capabilities, and integrations with core banking systems. Their architecture combines stateful orchestration, intelligent tools, retrieval systems, and secure APIs to deliver personalized banking experiences at scale across different Ella versions.\nWhy join: A rare opportunity to build real-world business-to-customer AI products used by customers every day. You'll work at the intersection of modern software engineering and Generative AI, solving challenging problems in scalability, latency, reliability, and AI-driven product development.\nYour Day-to-Day\nDesign, develop, and maintain scalable AI agents serving One Zero customers.\nBuild and integrate AI-powered capabilities, LLM-based tools, and agentic workflows into production systems.\nApply prompt engineering techniques to develop, optimize, and improve LLM-powered features.\nLeverage AI coding tools throughout the software development lifecycle, from design and implementation to testing, debugging, and refactoring.\nDesign, build and maintainable reliable and well-tested services that integrate APIs, databases, data pipelines, and cloud platforms to support scalable, secure, high-performance, data-driven AI applications.\nCollaborate with AI Engineers, AI Ops, Product, and other R&D teams to translate complex requirements into production-ready solutions.\nContinuously explore and adopt new AI technologies, frameworks, and development practices.\nRequirements\n3+ years of hands-on experience in backend software development and building production-grade applications - a must.\nStrong proficiency in Python, including clean code, software architecture, and API development - a must.\nPractical experience with LLM APIs and prompt engineering, including integrating Generative AI capabilities into applications.\nAI-native development mindset: hands-on experience using AI-assisted development tools (such as Cursor, Claude Code, or Codex) across the software development lifecycle, while maintaining high engineering standards.\nStrong debugging, troubleshooting and problem-solving skills. Ownership and ability to independently deliver end-to-end technical solutions.\nExperience with relational databases, NoSQL, and analytics data platforms.\nAdvantages\nExperience with agentic AI frameworks such as LangGraph, LangChain, or other agents platforms.\nB.Sc. in Computer Science, Software Engineering, or a related technical field.\nFamiliarity with AI evaluation, observability, monitoring, and performance optimization.\nExperience developing and deploying B2C LLM-powered applications in production, including RAG, tool calling, text 2 query and structured outputs.\nExperience as data science or Machine learning engineer.\nExperience working in fintech, banking, or other regulated environments.","description_format":"text","description_chars":3422,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"Israel","iso":"IL","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Artificial Intelligence","Commercial & Retail Banks","Digital Banks & Neobanks"],"lifecycle":[{"event":"open","at":"2026-11-12T11:37:03Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":27,"reasons":["conf:3","win:early"],"computed_at":"2026-11-12T15:32:37Z"},"pay":null,"html_url":"https://alion.io/job/one-zero-backend-developer-ai-team","json_url":"https://alion.io/job/one-zero-backend-developer-ai-team.json","meta":{"generated_at":"2026-11-12T15:32:37Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":32488,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-13T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":1953591},"rest":"https://alion.io/mcp/rest/get_company?id=1953591"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fone-zero-backend-developer-ai-team"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fone-zero-backend-developer-ai-team"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fone-zero-backend-developer-ai-team"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/one-zero-backend-developer-ai-team\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fone-zero-backend-developer-ai-team"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":4159049}},{"tool":"search_jobs","arguments":{"company":"onezerobank.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":4159049},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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