{"id":983348,"url":"https://alion.io/job/fluxon-staff-software-engineer-3","title":"Staff Software Engineer","company":{"id":673506,"name":"Fluxon","domain":"fluxon.com","url":"https://alion.io/company/fluxon","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":80,"open_postings":5,"ghost_share":0,"stale_share":0.8,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-11-05T05:54:30Z"}},"role":"Backend","role_family":"Backend","seniority":"staff","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Buenos Aires, Argentina"],"countries":["AR"],"hiring_countries":["AR"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":79000,"max_usd":169000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":2415},"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"AI Agents","optional":false},{"name":"Amazon S3","optional":false},{"name":"Angular","optional":false},{"name":"Anthropic","optional":false},{"name":"Apache Kafka","optional":false},{"name":"AWS","optional":false},{"name":"AWS Fargate","optional":false},{"name":"Azure","optional":false},{"name":"C#","optional":false},{"name":"ChatGPT","optional":false},{"name":"CI/CD","optional":false},{"name":"Claude","optional":false},{"name":"Django","optional":false},{"name":"Expo","optional":false},{"name":"FastAPI","optional":false},{"name":"Firebase","optional":false},{"name":"Firestore","optional":false},{"name":"GCP","optional":false},{"name":"Gemini","optional":false},{"name":"Go","optional":false},{"name":"Google BigQuery","optional":false},{"name":"Google Cloud Run","optional":false},{"name":"Hugging Face","optional":false},{"name":"JavaScript","optional":false},{"name":"Kotlin","optional":false},{"name":"LLM","optional":false},{"name":"Machine Learning","optional":false},{"name":"MariaDB","optional":false},{"name":"Next.js","optional":false},{"name":"NLP","optional":false},{"name":"OpenAI","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"React Native","optional":false},{"name":"Redis","optional":false},{"name":"Ruby on Rails","optional":false},{"name":"Rust","optional":false},{"name":"Spring Boot","optional":false},{"name":"SQL","optional":false},{"name":"Supabase","optional":false},{"name":"SwiftUI","optional":false},{"name":"TypeScript","optional":false},{"name":"Vertex AI","optional":false},{"name":"Java","optional":true},{"name":"React.js","optional":true},{"name":"Ruby","optional":true},{"name":"Swift","optional":true}],"status":"live","first_seen_at":"2026-09-16T17:51:42Z","employer_posted_date":"2026-09-18","last_verified_at":"2026-11-05T03:30:12Z","board_verified":true,"closed_at":null,"days_open":49,"trust":{"level":"ok","repost_count":0,"flags":[],"days_open":49},"description":"Who we are\nAt Fluxon, we believe that how you build matters as much as what you build. We help businesses navigate their most important technology decisions with confidence, and take responsibility for seeing them through. Founded by ex-Googlers and startup veterans, we’re proud to partner with teams behind some of the most ambitious products, including Google, OpenAI, Anthropic, Walmart and Stripe.\nOur work spans strategy, design, and engineering - often in complex, AI-driven environments - where clarity, speed and quality are the standard. We use AI intentionally, applying it only where it adds real value and expands what’s possible. Care shapes everything we do.\nInside Fluxon, you’ll find a global, remote-first team of experienced builders, who are curious, kind and serious about their craft. We’re building a place where people can take ownership, solve problems that matter and do work they’re proud to stand behind. If you want to do your best work alongside people who care as much as you do, you’ll feel at home here.\nThis role is fully remote, with candidates based in Buenos Aires, Argentina.\nAbout the role\nAs a Staff Software Engineer at Fluxon, you’ll play a key role in shaping the technical direction of our engineering organization. This is a highly senior, hands-on leadership position where you’ll partner closely with company and engineering leadership to influence strategy, guide architectural decisions, and elevate our overall engineering practice. All Staff Engineers write production code, and everyone joins Fluxon as an individual contributor before stepping into project leadership or management.\nYou'll be responsible for:\nGuiding product delivery all the way to the user, leading projects, providing technical guidance, and building and iterating in a dynamic environment\nPartnering directly with clients to understand their needs and achieve business goals\nDefining product requirements, identifying appropriate system designs and planning development in partnership with our Product and Design teams\nHelping drive a healthy and effective engineering culture within customer teams and inside Fluxon\nMentoring engineers across multiple teams, supporting their ongoing growth and strengthening team capabilities\nYou'll work with a diversity of technologies, including:\nCore Languages & Runtimes\nPrimary Languages: TypeScript/JavaScript, Python, Golang (Go), Java, C# (.NET), Kotlin, Swift, Rust\nAdditional: Ruby on Rails, Java, C# (.NET), Kotlin, Swift, Rust\nFrameworks & Ecosystems\nFront-End & UI: React, Next.js (Full-Stack), Angular, SwiftUI\nBack-End & Server-Side: Spring Boot (Java/Kotlin), FastAPI (Python), Django (Python)\nMobile Development: Expo (React Native)\nCloud & Infrastructure\nPlatforms: Google Cloud Platform (GCP), Amazon Web Services (AWS), Microsoft Azure\nCompute: GCP Compute Engine (VMs), AWS Fargate (Container Orchestration), Google Cloud Run (Serverless Containers), AWS Amplify\nStorage: AWS S3 (Object Storage), Google Cloud Storage (GCS)\nData & Messaging Services\nStreaming & Queuing: Apache Kafka (Event Streaming), AWS SQS (Simple Queue Service)\nData Warehouse & Analytics: Google BigQuery\nMonitoring & Observability: GCP Cloud Monitoring Suite (CMS)\nData Stores\nRelational (SQL): PostgreSQL, MariaDB\nNoSQL/Document: Firestore (Firebase), Supabase, MongoDB\nIn-Memory Caching: Redis, Memcache\nAdvanced Technologies & Architecture\nArtificial Intelligence/Machine Learning: AI/ML, Large Language Models (LLMs), Agentic AI, Natural Language Processing (NLP)\nLLM Platforms: Google Gemini, OpenAI ChatGPT, Vertex AI (GCP), Anthropic Claude, Hugging Face (OSS Models)\nSoftware Design: Architecture Redesign, Single Page Applications (SPA), Mobile Application Development\nEmerging Tech: Blockchain/Crypto\nQualifications\n7+ years of industry experience in software development\nExperience leading development through the full product lifecycle, including CI/CD, testing, release management, deployment, monitoring and incident response\nFluent in the design and implementation of scalable system architectures, data structures and algorithms, and effective development practices\nProfessional fluency in written and spoken English, with the ability to communicate technical concepts clearly to both international teammates and customers\nWhat we offer\nRemote-first, flexible work with a budget to set up a work space that works for you\nLocalized healthcare coverage to support you and your family’s wellbeing\nFlexible paid time off with a minimum of 3 weeks per year (plus holidays)\n\"No internal meetings\" Fridays, so you can focus on deep, uninterrupted work\nA professional growth budget for learning that matters to you - whether it’s developing your technical skills or learning a new language\nA monthly wellness allowance to support your physical and mental health\nAnnual company offsites, where we gather in person to build meaningful connections\nA competitive salary that reflects your expertise, impact and experience\nProfit-sharing, so you can benefit directly from the value we build together\nA paid sabbatical program, designed for rest, renewal and fresh perspective\nWe believe diverse teams perform better, and an inclusive environment is essential to building a successful organization. We welcome applicants from all backgrounds, experiences, and perspectives. We are an equal opportunity employer and are committed to providing accommodations throughout the hiring process.\nThis role uses AI-assisted tools to support initial screening. All assessments and decisions are made by a human reviewer.","description_format":"text","description_chars":5567,"description_truncated":false,"requirements":{"experience_years_min":7,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"All levels","optional":false}]},"benefits":["Flexible schedule"],"hiring_locations":[{"name":"Argentina","iso":"AR","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Custom Software Development"],"lifecycle":[{"event":"open","at":"2026-09-16T22:27:35Z"}],"visa":[],"liveness":{"score":47,"band":"ok","label":"Likely open","p_open":1,"p_active":0.863,"p_room":0.55,"age_days":49,"expected_fill_days":45,"reasons":["conf:2","velocity","win:tail"],"computed_at":"2026-11-05T05:54:30Z"},"pay":null,"html_url":"https://alion.io/job/fluxon-staff-software-engineer-3","json_url":"https://alion.io/job/fluxon-staff-software-engineer-3.json","meta":{"generated_at":"2026-11-05T06:39:34Z","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":8267,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-06T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"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":673506},"rest":"https://alion.io/mcp/rest/get_company?id=673506"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ffluxon-staff-software-engineer-3"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"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%2Ffluxon-staff-software-engineer-3"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"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%2Ffluxon-staff-software-engineer-3"},{"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/fluxon-staff-software-engineer-3\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ffluxon-staff-software-engineer-3"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":983348}},{"tool":"search_jobs","arguments":{"company":"fluxon.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":983348},"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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