{"id":56489,"url":"https://alion.io/job/viktor-agent-platform-engineer","title":"Backend Engineer","company":{"id":7156,"name":"Viktor","domain":"viktor.com","url":"https://alion.io/company/getviktor-com","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"A","score":95,"open_postings":21,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":118,"computed_at":"2026-10-16T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Warsaw, Poland","Munich, Germany"],"countries":["PL","DE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":52000,"max_usd":100000,"period":"year","method":"role_country_seniority_unknown","sample_n":924},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Linux","optional":false},{"name":"LLM","optional":false},{"name":"Model Context Protocol","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2026-06-22T17:05:29Z","employer_posted_date":"2026-06-22","last_verified_at":"2026-10-17T00:48:04Z","board_verified":true,"closed_at":null,"days_open":116,"trust":{"level":"ok","repost_count":0,"flags":[],"days_open":115},"description":"The Short Version\nYou make everything the agent runs on solid: the integrations it reaches through, the gateway that turns them into functions it can call, the sandboxes it runs in, and the data underneath. You've built and operated real backend systems in production and have scars from how they break.\nYou may never have shipped an LLM feature, and that's fine. If you haven't run systems in production, this isn't the role.\nThe Hard Part\nViktor reaches into 3,200+ integrations for 56,000+ workspaces, 5M+ tool calls a day, on real customer data. Every integration that quietly misbehaves is a task the agent gets wrong.\nWe're building a harness ready for AGI-level models: an agent that explores what a company runs on and automates it on its own. That bet lives or dies on the backend underneath. The gateway, sandboxes, and data every task runs through have to be fast, solid, and never the reason the agent got it wrong.\nWhat You'll Actually Do\nOwn integration quality end to end: catch issues before customers do, fix them, and make sure they can't recur.\n\nBuild the tool gateway: turn every connected API and MCP into a clean Python SDK the agent composes, with routing, auth, rate limits, and reliability.\n\nRun the sandboxes: a persistent Linux environment per workspace, isolated, secured, autoscaled, and cheap per task.\n\nOwn the data layer: state and persistence across 56,000+ multi-tenant workspaces, durable and fast.\n\nWhatever needs building. Small team, large surface.\n\nWho You Are\nYou design distributed systems for scale and reliability, and have operated them in production through the breakage.\n\nYou know sandboxing and OS-level isolation cold: containers, Linux internals, running untrusted code safely.\n\nYou've wrangled real integration plumbing: OAuth, webhooks, rate limits, and third-party APIs that lie.\n\nYou think in multi-tenancy, durability, and cost per request, and design for failure by default.\n\nSecurity and blast radius are instincts you bring to every design, especially when the thing executes model-written code.\n\nYou build with AI by default, because that's how the team moves.\n\nYou may never have shipped an LLM feature, and that's fine. This is a systems role.\n\nWhy This Role Is Different\nNo layers. You work directly with both founders, and decisions get made in the room, not in a Linear ticket.\n\nThe backend is the ceiling. Every integration you make reliable and every sandbox you make cheaper raises what the whole agent can do.\n\nYou're building the backend of a frontier harness: the layer that decides how much of the model's intelligence turns into real work.\n\nEven Better If\nYou've worked on infrastructure, platform, or developer-tools teams where reliability was the product.\n\nYou've built sandboxing, code-execution, or multi-tenant systems before.\n\nYou're at home in agentic engineering workflows, spec to production.\n\nYou've contributed to the open-source infrastructure the world runs on.\n\nYou've founded something or been an early-stage builder.\n\nTech\nPython. No agent framework and no container orchestration layer: Python services, persistent Linux sandboxes per workspace, Modal for infrastructure. You'll live in OAuth and webhooks, the tool gateway, and multi-tenant data. You don't need all of it coming in, but you need to learn fast.\nHow we work\nSmall team, high trust, low process. Decisions are made by owners, not committees. You will ship your first week. You will talk to users your first day.\nWe don't do alignment meetings or stakeholder syncs. We build things, see if they work, and iterate.\nWhy Viktor\nWe're one of the fastest-growing companies in the world. The product works. The market is pulling.\nThis is a rare window: everyone here owns something real. Not a task. A surface of the company that customers depend on. That doesn't last forever. Right now, it's still true.\nCompensation\nTop-of-the-market salary and the kind of ownership that only exists at this stage.\nThe best work happens when you're in the room. This role is Munich or Warsaw.","description_format":"text","description_chars":4026,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["AI Agents"],"lifecycle":[{"event":"open","at":"2026-06-22T17:05:29Z"}],"visa":[],"liveness":{"score":39,"band":"fade","label":"Fading","p_open":1,"p_active":0.651,"p_room":0.6,"age_days":115,"expected_fill_days":118,"reasons":["conf:2","velocity","win:late","crowd:"],"computed_at":"2026-10-16T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/viktor-agent-platform-engineer","json_url":"https://alion.io/job/viktor-agent-platform-engineer.json","meta":{"generated_at":"2026-10-17T02:02:57Z","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":2941,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-18T00:00:00Z"}},"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":7156},"rest":"https://alion.io/mcp/rest/get_company?id=7156"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fviktor-agent-platform-engineer"},{"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%2Fviktor-agent-platform-engineer"},{"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%2Fviktor-agent-platform-engineer"},{"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/viktor-agent-platform-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fviktor-agent-platform-engineer"}]}