{"id":2272341,"url":"https://alion.io/job/accuranker-com-senior-backend-developer-data-collection-and-infrastructure","title":"Senior Backend Developer, Data Collection and Infrastructure","company":{"id":1771532,"name":"AccuRanker.com","domain":"accuranker.com","url":"https://alion.io/company/accuranker","size_band":"1-10","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Aarhus, Denmark"],"countries":["DK"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":66000,"max_usd":195000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":6933},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"ChatGPT","optional":false},{"name":"Linux","optional":false},{"name":"Perplexity","optional":false},{"name":"Time Series Forecasting","optional":false},{"name":"AI Agents","optional":true},{"name":"Apache Kafka","optional":true},{"name":"Celery","optional":true},{"name":"ClickHouse","optional":true},{"name":"Django","optional":true},{"name":"Model Context Protocol","optional":true},{"name":"Python","optional":true},{"name":"Structured Outputs","optional":true}],"status":"live","first_seen_at":"2026-09-09T22:00:00Z","employer_posted_date":null,"last_verified_at":"2026-09-09T22:00:00Z","board_verified":false,"closed_at":null,"days_open":39,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":39},"description":"What we are building\n\nSomeone researching a purchase might start in ChatGPT, compare options in Perplexity, run a Google search, then go back to an AI assistant to decide. The companies being compared have little idea where they show up in that chain or what gets said about them, and very few can measure it today.\n\nWe build the infrastructure that measures it. Every platform we track changes under us, and none of them offers a feed, so we collect the data ourselves. The collection is the hard part, and it is most of this job. Three products run on it:\n\nAccuRanker is the rank tracking and SEO analytics platform. Rankings, competitor movement, keyword research, dashboards, forecasting.\n\nAccuLLM tracks brand visibility inside ChatGPT, Perplexity, AI Overview, and AI Mode.\n\nAccuSERP is a search data API we sell to other companies in the industry.\n\nOn a normal day that means 27 billion rows inserted, 85 million web requests collected, 80 million background jobs run, and 64 million analytical queries served. Eight people build and run all of it.\n\nWhat you will work on\n\nScale the collection and ingestion pipeline behind those numbers. Drive down cost and latency per request as volume grows.\n\nAdd new search surfaces as they appear, and keep the ones we already cover working when they change shape.\n\nDesign storage and query paths for very large time series data, across columnar and relational stores.\n\nOwn services end to end, from design through deployment to how they behave in production.\n\nWhat you bring\n\nMust have:\n\nDistributed systems fundamentals. Queues, workers, backpressure, etc.\n\nComfort in Linux and close to production. Debugging incidents, understanding system behavior, improving observability, making services more reliable.\n\nOwnership and initiative. You take a problem, you decide how to solve it, and you follow through.\n\nGood to have:\n\nThe network layer in depth. Connection lifecycle, timeouts and retries, TLS, HTTP/2 and HTTP/3.\n\nClickHouse or another columnar store at scale.\n\nAI agents in production. Tool and context design, structured output and evals.\n\nLarge scale web scraping or browser automation.\n\nKafka.\n\nPython and its common frameworks (Django, Celery, pandas/polars). Our stack runs mostly on Python, but it is not a must if the fundamentals are strong.\n\nData infrastructure at scale. The ingestion, storage, and query-performance problems our numbers imply.\n\nWho does well here\n\nPeople who set a high standard for their own work, and who care about performance, reliability, cost, and operational simplicity.\n\nYou own a feature end to end, from idea to production. You can make progress while the problem is still half defined, and a month after it ships, you are still the one who cares about it.\n\nYou move fast when speed is what the problem needs, and you know when stability, safety and maintainability matter more.\n\nThis field moves fast right now. We expect you to read, try things, and form your own view of what is worth using, without waiting to be told what is new.\n\nThe job is wide. In one week you might tune a database, debug a proxy network, and design an agent.\n\nThis role is not for you if you want a roadmap handed to you, a narrow technical scope, or a large team around you. We are small, the problems change, and you will often be the person deciding both what to build and what “done” means.\n\nAI at AccuRanker\n\nAI is a big part of the product and of how we build it. AccuLLM sends queries to LLMs all day, customers use our MCP server, and agents and tool design are real engineering problems here.\n\nBeing effective with coding agents is becoming a core engineering skill, and it is part of this job. You should be good at giving agents the right context, breaking work into pieces they can execute well, reviewing what they produce, and knowing when to take over yourself. The bar is more high-quality engineering done without outsourcing your understanding and judgment, which is a different thing from using AI a lot.\n\nHow we work\n\nYou own services, not tickets. You decide how to solve the problem, make the tradeoffs, and deploy it yourself.\n\nWe ship many times a day. A change can go from idea to production the same day.\n\nWe argue about designs, in writing and in the room. Correctness, cost, and latency are worth arguing about out loud.\n\nWe share what we know and help each other own unfamiliar parts of the system.\n\nWhat we offer\n\nSalary set individually on skills and experience.\n\nPension, health insurance, flexible working hours, and paid parental leave.\n\nHardware of your choosing.\n\nOffice in central Aarhus on Åboulevarden, top floors, panoramic views over the city. The role is on-site, with hybrid options planned for later this year.\n\nGreat lunch.\n\nHow to apply\n\nSend your CV and a short note to , in Danish or English.\n\nWe review applications as they come in and hire as soon as we find the right person, so send yours when it is ready.\n\nQuestions about the role are welcome. Call our CTO, Peter Emil Tybirk, on +45 61 41 77 41.","description_format":"text","description_chars":5038,"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":["Flexible schedule","Health insurance","Parental leave"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Sales & Marketing","Predictive Analytics","Search Engine Optimization (SEO)"],"lifecycle":[{"event":"open","at":"2026-10-11T07:28:46Z"}],"visa":[],"liveness":{"score":11,"band":"cold","label":"Long shot","p_open":0.6,"p_active":0.406,"p_room":0.45,"age_days":39,"expected_fill_days":24,"reasons":["seen:39","urgency","win:tail"],"computed_at":"2026-10-19T05:45:15Z"},"pay":null,"html_url":"https://alion.io/job/accuranker-com-senior-backend-developer-data-collection-and-infrastructure","json_url":"https://alion.io/job/accuranker-com-senior-backend-developer-data-collection-and-infrastructure.json","meta":{"generated_at":"2026-10-19T06:22:39Z","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":3980,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-20T00:00:00Z"}},"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":1771532},"rest":"https://alion.io/mcp/rest/get_company?id=1771532"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Faccuranker-com-senior-backend-developer-data-collection-and-infrastructure"},{"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%2Faccuranker-com-senior-backend-developer-data-collection-and-infrastructure"},{"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%2Faccuranker-com-senior-backend-developer-data-collection-and-infrastructure"},{"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/accuranker-com-senior-backend-developer-data-collection-and-infrastructure\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Faccuranker-com-senior-backend-developer-data-collection-and-infrastructure"}]}