{"id":95098,"url":"https://alion.io/job/rtb-house-distributed-systems-engineer-3","title":"Distributed Systems Engineer","company":{"id":1562,"name":"RTB House","domain":"rtbhouse.com","url":"https://alion.io/company/rtb-house","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":85,"open_postings":17,"ghost_share":0,"stale_share":0.588,"repost_share":0,"time_to_fill_p50_days":55,"computed_at":"2026-11-06T05:58:05Z"}},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Warsaw, Poland"],"countries":["PL"],"hiring_countries":["PL"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":69000,"max_usd":130000,"period":"year","method":"role_country_seniority_unknown","sample_n":872},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Aerospike","optional":false},{"name":"Apache Kafka","optional":false},{"name":"ClickHouse","optional":false},{"name":"DNS","optional":false},{"name":"ElasticSearch","optional":false},{"name":"GCP","optional":false},{"name":"Google BigQuery","optional":false},{"name":"Java","optional":false},{"name":"Jenkins","optional":false},{"name":"Kubernetes","optional":false},{"name":"Memcached","optional":false},{"name":"MinIO","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Prometheus","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2026-08-11T08:42:52Z","employer_posted_date":"2026-11-05","last_verified_at":"2026-11-06T14:59:50Z","board_verified":true,"closed_at":null,"days_open":87,"trust":{"level":"ok","repost_count":1,"flags":[],"days_open":86},"description":"Location:[Poland] \nWe Are: \nRTB House is a next-generation performance demand-side platform (DSP) that uses proprietary Deep Learning AI algorithms to help brands grow. The company is the market leader in driving performance using Deep Learning across the entire purchase funnel. \nFounded in 2012 and now operating in 90+ markets, RTB House has always been private-by-design. It embraces first-party advertising and a relentless approach to innovation. RTB House offers end-to-end Deep Learning-powered AdTech products and solutions to maximize conversion, drive new customer acquisition, create engagement, and fuel long-term demand for a global base of clients. \nIn 2026, RTB House launched rtb.com, a self-service platform specifically designed to allow small and medium-sized businesses and agencies to deploy auto-built creatives and maximize performance on any budget. \nWe are looking for Engineers to support our Bidding Platform organization which is the core of the RTB business, processing over 24 million requests per second while maintaining a latency of under 50 ms to participate in real-time auctions and display advertisements to our customers.\nWhy RTB House? \nIf you are looking for a place where you can work on technically complex and demanding solutions, this is the opportunity for you!\nYou Will: \nDesign and programming of a wide range of modules and components as part of a system that supports over 24M queries per second and low latency;\nWork on the optimization of the developed software in terms of response time and resource consumption;\nEnsure the reliability and scalability of the solutions built;\nCreate performance and correctness tests for new system components;\nAnalyse new technologies in terms of their applicability in production conditions;\nDevelop tools for monitoring and analysing the operation of the production system;\nContinuous optimization of existing tools and processes.\nDesired Experience: \nExcellent understanding of how complex IT systems work (from the hardware level, through software, to algorithmics);\nProficiency in programming;\nVery good knowledge of fundamental Internet protocols and technologies (DNS, HTTP, cookies and others);\nGood knowledge of basic methods of creating concurrent programs and distributed systems (from thread level to continent level);\nPractical ability to observe, monitor and analyse the operation of production systems (and draw valuable conclusions from it);\nThe ability to critically analyze the solutions created in terms of performance (from estimating the theoretical performance of the designed systems to detecting and removing actual performance problems in production);\nGeneral knowledge of issues (typical problems and methods of solving them) in the areas of 'high scalability' and 'high availability';\nC1 level in English and Polish;\nBackground in Computer Science, Algorithmic complexity, and System Architecture (formal CS degree, competitive programming experience like OI/ICPC, or equivalent track record).\nSelected Technologies:\nJava, Python\nAerospike, Memcached\nGoogle Cloud Platform, BigQuery, MinIO\nKafka, Clickhouse\nPostgreSQL\nElasticsearch\nKubernetes, Prometheus\nJenkins, Graphite\nWe Offer: \nProjects focused on extreme performance and high code quality - clean code and solid code reviews are our standard;\nCollaboration within an interdisciplinary, self-sufficient team (including DevOps, database experts, backend developers, product designers, and QA engineers);\nAccess to modern technologies and the opportunity to apply them in large-scale, high-impact projects;\nCooperation based on B2B contract;\nYou can cooperate 100 % remotely or choose one of our office spaces in Warsaw or Cracow.\nApply now! \nYou don't need to tick every box to apply. If you are passionate about digital marketing, send us your CV, and we'll review it.","description_format":"text","description_chars":3839,"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":[{"language":"English","level":"All levels","optional":false}]},"benefits":[],"hiring_locations":[{"name":"Poland","iso":"PL","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Machine Learning","Advertising","Marketing & Sales AI"],"lifecycle":[{"event":"open","at":"2026-08-11T08:42:52Z"},{"event":"close","at":"2026-10-14T11:57:23Z"},{"event":"reopen","at":"2026-11-05T11:01:04Z"}],"visa":[],"liveness":{"score":17,"band":"cold","label":"Long shot","p_open":1,"p_active":0.486,"p_room":0.36,"age_days":86,"expected_fill_days":55,"reasons":["conf:3","stale_co","velocity","win:tail","crowd:"],"computed_at":"2026-11-06T05:58:05Z"},"pay":null,"html_url":"https://alion.io/job/rtb-house-distributed-systems-engineer-3","json_url":"https://alion.io/job/rtb-house-distributed-systems-engineer-3.json","meta":{"generated_at":"2026-11-06T15:29:27Z","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":28855,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-07T00:00:00Z"}},"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":1562},"rest":"https://alion.io/mcp/rest/get_company?id=1562"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Frtb-house-distributed-systems-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%2Frtb-house-distributed-systems-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%2Frtb-house-distributed-systems-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/rtb-house-distributed-systems-engineer-3\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Frtb-house-distributed-systems-engineer-3"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":95098}},{"tool":"search_jobs","arguments":{"company":"rtbhouse.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":95098},"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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