{"id":3094932,"url":"https://alion.io/job/mercado-bitcoin-java-backend-developer-specialist","title":"Java Backend Developer Specialist","company":{"id":47467,"name":"Mercado Bitcoin","domain":"mercadobitcoin.com.br","url":"https://alion.io/company/mercado-bitcoin","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Gupy","truth_index":null},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["São Paulo, Brazil"],"countries":["BR"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Bitcoin","optional":false},{"name":"Incident Management","optional":false},{"name":"Java","optional":false}],"status":"live","first_seen_at":"2026-09-23T01:27:36Z","employer_posted_date":null,"last_verified_at":"2026-09-23T01:27:36Z","board_verified":false,"closed_at":null,"days_open":40,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":40},"description":"MB | Mercado Bitcoin is looking for a Java Backend Developer Specialist to build high-performance distributed trading systems and automated tests.\n\nYou will develop and maintain robust Java applications and high-availability distributed systems. You will handle distributed transactions, data consistency, low-latency performance, observability, telemetry, and proactive incident management. You will participate in technical ceremonies and architecture decisions, and you will build and maintain automated tests as part of every delivery.\n\nResponsibilitiesDevelop and maintain robust Java applications\nDesign and operate high-availability distributed systems\nOptimize resilience, low-latency performance, and throughput\nHandle distributed transactions and ensure data consistency across microservices\nDevelop observability-oriented microservices\nMonitor systems and anticipate failures and incidents\nParticipate in technical refinements, planning, reviews, architecture decisions, and product strategy\nBuild and maintain automated tests\n\nRequirementsJava JDK 11+\nMessage-based architectures\nDistributed messaging such as Aeron, Hydra, or Apache Kafka\nRelational databases, preferably PostgreSQL\nWebSockets and custom protocol design\nFinancial market protocols such as FIX\nHigh-performance binary codecs such as SBE, Protobuf, or FlatBuffers\nGradle\nAutomated testing with Cucumber and BDD\nDocker\nLinux\nObservability, telemetry, and monitoring\nOpenTelemetry, exporters, collectors, traces, spans, and metrics","description_format":"text","description_chars":1507,"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":["Blockchain & Crypto","Cryptocurrencies"],"lifecycle":[{"event":"open","at":"2026-10-22T15:51:15Z"}],"visa":[],"liveness":{"score":16,"band":"cold","label":"Long shot","p_open":0.6,"p_active":0.586,"p_room":0.45,"age_days":39,"expected_fill_days":24,"reasons":["seen:39","win:tail"],"computed_at":"2026-11-01T06:10:25Z"},"pay":null,"html_url":"https://alion.io/job/mercado-bitcoin-java-backend-developer-specialist","json_url":"https://alion.io/job/mercado-bitcoin-java-backend-developer-specialist.json","meta":{"generated_at":"2026-11-02T01:29:50Z","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":2303,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-03T00:00:00Z"}},"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":47467},"rest":"https://alion.io/mcp/rest/get_company?id=47467"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmercado-bitcoin-java-backend-developer-specialist"},{"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%2Fmercado-bitcoin-java-backend-developer-specialist"},{"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%2Fmercado-bitcoin-java-backend-developer-specialist"},{"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/mercado-bitcoin-java-backend-developer-specialist\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmercado-bitcoin-java-backend-developer-specialist"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3094932}},{"tool":"search_jobs","arguments":{"company":"mercadobitcoin.com.br","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3094932},"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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