{"id":3972362,"url":"https://alion.io/job/latam-cent-senior-full-stack-engineer-ai-focused","title":"Senior Full-Stack Engineer (AI-Focused)","company":{"id":678591,"name":"Latam Cent","domain":"latamcent.com","url":"https://alion.io/company/latamcent","size_band":"51-200","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":null},"role":"Backend","role_family":"Backend","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":[],"countries":[],"hiring_countries":["AR"],"hiring_countries_total":1,"salary":null,"salary_estimate":null,"experience_years_min":6,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Claude Code","optional":false},{"name":"Elixir","optional":false},{"name":"Function Calling","optional":false},{"name":"JavaScript","optional":false},{"name":"LLM","optional":false},{"name":"Model Context Protocol","optional":false},{"name":"Prompt Engineering","optional":false},{"name":"Python","optional":false},{"name":"RAG","optional":false},{"name":"TypeScript","optional":false},{"name":"WebSockets","optional":false}],"status":"live","first_seen_at":"2026-11-09T15:46:54Z","employer_posted_date":"2026-11-09","last_verified_at":"2026-11-09T16:39:59Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"About the Role\nWe are looking for a Senior Full-Stack Engineer to help build the next generation of AI-powered features at Userflow and contribute to the company's transition toward an AI-first product.\nYou will own the development of AI features end to end, working across frontend interfaces, backend services, APIs, and LLM integrations. Your work will span Userflow's product builder, in-app SDK, Adoption Agent, and MCP connector.\nThis is a hands-on senior engineering role with significant autonomy and direct collaboration with the CTO, product, and design teams. You will help define the technical direction of AI-powered product development while delivering production-ready features that solve real customer problems.\nWe are looking for an engineer who combines strong full-stack development skills with practical experience building LLM-powered applications. You should be comfortable using AI coding agents as part of your daily workflow, making independent technical decisions, and taking ownership of the quality and business impact of what you ship.\nKey Responsibilities\nFull-Stack Development: Build and maintain AI-powered product features across frontend interfaces, backend services, APIs, the product builder, and Userflow's in-app SDK.\n\nAI Product Development: Develop end-to-end experiences for Userflow's Adoption Agent and other AI-driven capabilities.\n\nTechnical Strategy: Collaborate directly with the CTO and product team to define the technical roadmap and architecture for an AI-first product.\n\nLLM Engineering: Design and implement production-ready LLM workflows, including prompt engineering, retrieval-augmented generation (RAG), tool calling, agent orchestration, and evaluation systems.\n\nMCP and Agent Integrations: Extend Userflow's MCP connector and build integrations that allow customers to interact with Userflow through their own AI tools and workflows.\n\nProduct Quality and Performance: Own the reliability, latency, and cost efficiency of AI features, establishing metrics to measure technical performance and customer value.\n\nAI-Assisted Engineering: Use AI coding agents such as Claude Code as part of everyday development, while establishing effective workflows, guardrails, and best practices.\n\nCross-Functional Collaboration: Work closely with product, design, engineering, and leadership to translate customer problems into effective technical solutions.\n\nRequirements\n6+ years of professional experience building and maintaining production SaaS applications as a full-stack engineer.\n\nStrong proficiency in TypeScript and/or JavaScript across frontend and backend development.\n\nExperience with modern frontend frameworks and building responsive, user-facing product interfaces.\n\nSolid experience with Elixir and Python.\n\nUnderstanding of high-volume WebSocket traffic and its impact on application architecture and infrastructure.\n\nHands-on experience building and shipping LLM-powered features in production, including model APIs, RAG, tool calling, or AI agents.\n\nExperience designing and evaluating LLM workflows, with an understanding of how to measure output quality and reliability.\n\nDaily experience using AI coding agents such as Claude Code or similar tools, with the ability to identify where human oversight and technical guardrails are necessary.\n\nStrong product mindset, with the ability to understand user problems, translate them into technical solutions, and measure the results.\n\nAbility to work independently, take ownership of technical decisions, and deliver features with minimal supervision.\n\nClear communication skills and the ability to collaborate effectively with engineers, product stakeholders, and executive leadership.\n\nEnglish proficiency: C1 or C2, with the ability to communicate technical concepts and participate actively in a distributed international team.\n\nPreferred Qualifications\nExperience building Model Context Protocol (MCP) servers, connectors, or other agent-oriented tooling.\n\nExperience developing embedded JavaScript SDKs or in-app product experiences.\n\nFamiliarity with LLM observability, tracing, monitoring, and evaluation tools.\n\nPrevious experience with product-led growth (PLG), user onboarding, or product adoption platforms.\n\nExperience designing scalable AI architectures and managing model performance and inference costs.\n\nExperience working in small, product-focused engineering teams.\n\nCompensation & Logistics\nWork Arrangement: Fully remote.\n\nHiring Region: Latin America.\n\nTime Zone: Must be able to maintain strong working-hour overlap with US-based leadership and product engineering teams.\n\nSeniority: Senior individual contributor.\n\nReporting Structure: Directly reports to the CTO.\n\nCompensation: USD-based, to be determined based on experience and technical expertise.\n\nWhat Success Looks Like\nFirst 90 Days\nShip at least one AI-powered feature to production and make it available to customers.\n\nEstablish a functional AI-assisted development workflow involving product, design, and engineering.\n\nBecome familiar with Userflow's architecture, product ecosystem, and existing AI capabilities.\n\nIdentify opportunities to improve the quality, performance, and delivery speed of AI-powered features.\n\nFirst 12 Months\nDeliver AI features that demonstrate measurable improvements in product adoption and customer retention.\n\nEstablish reusable engineering patterns for building, evaluating, and deploying AI-powered capabilities.\n\nContribute meaningfully to the company's transition toward an AI-first product architecture.\n\nHelp establish AI-assisted development practices adopted across the engineering team.\n\nMaintain high standards for product quality, performance, reliability, and cost efficiency.\n\nCompany Overview\nUserflow is a product adoption platform that helps businesses guide their users toward realizing the full value of their products.\nThe platform enables companies to create in-app experiences that improve user onboarding, engagement, and product adoption. AI is increasingly central to its product strategy, with capabilities such as the Adoption Agent and MCP connector helping customers interact with and get more value from their products.\nUserflow reaches more than 12 million end users through customer applications across the US and EU.\nJoining Userflow means contributing directly to the evolution of an established SaaS product, helping shape its AI strategy, and building features that reach millions of users.\nWhy Join?\nShape an AI-first product: Help define how AI transforms the product, working directly with the CTO.\n\nEnd-to-end ownership: Build features across the full stack, from user interfaces to backend systems and AI integrations.\n\nAI-driven engineering culture: Work with a team that actively uses AI coding agents in its daily development process.\n\nDirect impact: Ship features used by more than 12 million end users.\n\nAutonomy and influence: Join a small engineering team where your technical decisions and contributions have a direct impact on the product.","description_format":"text","description_chars":7016,"description_truncated":false,"requirements":{"experience_years_min":6,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"Advanced (C1)","optional":false}]},"benefits":[],"hiring_locations":[{"name":"Argentina","iso":"AR","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-11-09T16:39:59Z"}],"visa":[],"liveness":{"score":52,"band":"ok","label":"Likely open","p_open":1,"p_active":0.516,"p_room":1,"age_days":0,"expected_fill_days":47,"reasons":["conf:3","agency","win:early"],"computed_at":"2026-11-09T19:52:55Z"},"pay":null,"html_url":"https://alion.io/job/latam-cent-senior-full-stack-engineer-ai-focused","json_url":"https://alion.io/job/latam-cent-senior-full-stack-engineer-ai-focused.json","meta":{"generated_at":"2026-11-09T19:52:55Z","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":6308,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-10T00:00:00Z"}},"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":678591},"rest":"https://alion.io/mcp/rest/get_company?id=678591"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Flatam-cent-senior-full-stack-engineer-ai-focused"},{"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%2Flatam-cent-senior-full-stack-engineer-ai-focused"},{"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%2Flatam-cent-senior-full-stack-engineer-ai-focused"},{"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/latam-cent-senior-full-stack-engineer-ai-focused\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Flatam-cent-senior-full-stack-engineer-ai-focused"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3972362}},{"tool":"search_jobs","arguments":{"company":"latamcent.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3972362},"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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