{"id":794790,"url":"https://alion.io/job/blocklabs-senior-backend-engineer-go","title":"Senior Backend Engineer (Go)","company":{"id":670169,"name":"Block Labs","domain":"blocklabs.io","url":"https://alion.io/company/blocklabs-2","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":75,"open_postings":3,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-31T05:58:55Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":["BG","HR","IE","IT","ME","RO","RS","ES","AL","GR","XK","MT","PT","BA"],"hiring_countries_total":14,"salary":null,"salary_estimate":{"min_usd":41000,"max_usd":84000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":17},"experience_years_min":6,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Go","optional":false},{"name":"gRPC","optional":false},{"name":"Rest API","optional":false},{"name":"Apache Kafka","optional":true}],"status":"live","first_seen_at":"2026-06-15T09:21:26Z","employer_posted_date":"2026-06-15","last_verified_at":"2026-10-31T15:11:54Z","board_verified":true,"closed_at":null,"days_open":138,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":137},"description":"About Block Labs\nBlock Labs is a premier technology studio operating at the bleeding edge of Web3, Artificial Intelligence, and iGaming. We don't just ship features; we engineer high-scale, production-grade platforms that power the next generation of digital products.\nWe are a collective of senior engineers, product strategists, and builders who refuse to compromise on architecture. Whether we are designing autonomous multi-agent AI systems, building decentralized financial infrastructure, or architecting high-frequency iGaming platforms, our standard is excellence.\nWe move fast, but we build for the long term. If you are looking to work alongside a team that values deep technical expertise, thoughtful system design, and product ownership, Block Labs is where you belong.\nAbout The Role\nWe are building the backend that powers how players experience our platform: a set of multi-tenant services that turn high-volume player activity into engaging, personalised, and trustworthy experiences. It is a broad and evolving remit, with real room to shape new products and capabilities as the platform grows.\nYou’ll be joining a senior, highly technical team building greenfield backend services that react to player activity in real time and at scale. We value autonomy, craftsmanship, and long-term thinking, and we’re building event-driven systems designed for resilience, low latency, and trust.\nKey Responsibilities:\nDesign and build distributed backend services that power player engagement across a multi-tenant platform.\n\nDevelop core platform features and services across a broad and evolving set of player-facing domains, from engagement and personalisation to platform integrity.\n\nConsume and process high-volume player activity streams, integrating with internal platforms (payments, game providers, player data) and relevant third-party tools.\n\nCollaborate with product, frontend, data, and infrastructure teams to deliver reliable, end-to-end systems.\n\nContribute to architectural design and drive technical decisions across services.\n\nEnsure scalability, fault-tolerance, and data integrity, including the correctness guarantees required when balances and player-facing decisions are involved.\n\nMaintain clean, testable, and well-documented Go code following industry best practices.\n\nAbout You:\n6+ years of experience in backend development, ideally on high-throughput, real-time, or consumer-facing systems.\n\nStrong proficiency in Go as a primary backend language; experience with gRPC and RESTful APIs is highly valued.\n\nSolid understanding of distributed systems, multi-tenant architectures, and microservices.\n\nExperience building consumer-facing or platform services where engagement, personalisation, or platform integrity matter is a strong advantage.\n\nComfortable working in cloud-native environments.\n\nDeep commitment to software reliability, observability, and security best practices.\n\nExcellent communication skills and a collaborative mindset.\n\nNice to Have:\nExperience with rules engines, real-time scoring, or decisioning systems.\n\nBackground in fintech, real-time gaming and entertainment platforms, or other high-traffic consumer products.\n\nFamiliarity with event-driven systems, Kafka, or message queues.\n\nPrior experience designing APIs for multi-tenant or white-label products.\n\nWhat kind of culture can I expect?\nMature, mission-driven, and low-ego. We value clarity over noise, outcomes over theatrics, and pace without chaos. If you’re one of the smartest minds in your craft and want to build with other experts, you’ll feel at home here.","description_format":"text","description_chars":3581,"description_truncated":false,"requirements":{"experience_years_min":6,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"Bulgaria","iso":"BG","kind":"country"},{"name":"Croatia","iso":"HR","kind":"country"},{"name":"Ireland","iso":"IE","kind":"country"},{"name":"Italy","iso":"IT","kind":"country"},{"name":"Montenegro","iso":"ME","kind":"country"},{"name":"Romania","iso":"RO","kind":"country"},{"name":"Serbia","iso":"RS","kind":"country"},{"name":"Spain","iso":"ES","kind":"country"},{"name":"Albania","iso":"AL","kind":"country"},{"name":"Greece","iso":"GR","kind":"country"},{"name":"Kosovo","iso":"XK","kind":"country"},{"name":"Malta","iso":"MT","kind":"country"},{"name":"Portugal","iso":"PT","kind":"country"},{"name":"Bosnia and Herzegovina","iso":"BA","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Blockchain Infrastructure","Angel Networks & Startup Accelerators"],"lifecycle":[{"event":"open","at":"2026-09-12T04:51:34Z"}],"visa":[],"liveness":{"score":9,"band":"cold","label":"Long shot","p_open":1,"p_active":0.335,"p_room":0.28,"age_days":137,"expected_fill_days":35,"reasons":["conf:2","win:tail","crowd:"],"computed_at":"2026-10-31T05:58:55Z"},"pay":null,"html_url":"https://alion.io/job/blocklabs-senior-backend-engineer-go","json_url":"https://alion.io/job/blocklabs-senior-backend-engineer-go.json","meta":{"generated_at":"2026-10-31T17:32:35Z","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":27444,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-01T00:00:00Z"}},"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":670169},"rest":"https://alion.io/mcp/rest/get_company?id=670169"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fblocklabs-senior-backend-engineer-go"},{"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%2Fblocklabs-senior-backend-engineer-go"},{"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%2Fblocklabs-senior-backend-engineer-go"},{"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/blocklabs-senior-backend-engineer-go\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fblocklabs-senior-backend-engineer-go"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":794790}},{"tool":"search_jobs","arguments":{"company":"blocklabs.io","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":794790},"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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