{"id":3404752,"url":"https://alion.io/job/brickken-junior-blockchain-developer","title":"Junior Blockchain Developer","company":{"id":1869358,"name":"Brickken","domain":"brickken.com","url":"https://alion.io/company/brickken","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Web3","role_family":"Web3","seniority":"junior","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":["Barcelona, Spain"],"countries":["ES"],"hiring_countries":["ES"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":60000,"max_usd":133000,"period":"year","method":null,"sample_n":79},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Ethereum","optional":false},{"name":"Git","optional":false},{"name":"Hardhat","optional":false},{"name":"Smart Contracts","optional":false},{"name":"Solidity","optional":false}],"status":"closed","first_seen_at":"2026-10-28T12:35:32Z","employer_posted_date":null,"last_verified_at":"2026-10-30T15:48:00Z","board_verified":false,"closed_at":"2026-10-30T15:48:00Z","days_open":2,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":2},"description":"Brickken is looking for a Junior Blockchain Developer to support smart contract development testing integration and blockchain operations.\n\nYou will assist with designing, implementing, and deploying smart contracts on Ethereum-compatible networks. You will test, debug, integrate, monitor, and troubleshoot blockchain services, contribute to architecture improvements, and participate in code reviews and sprint planning.\n\nResponsibilitiesAssist with the design, implementation, and deployment of smart contracts\nTest and debug smart contracts\nSupport smart contract integration with front-end and back-end systems\nMaintain documentation and share knowledge\nMonitor blockchain services and troubleshoot production issues\nContribute to blockchain architecture improvements\nParticipate in code reviews, technical discussions, and sprint planning\n\nRequirementsUnderstanding of Solidity, smart contracts, and the EVM ecosystem\nFamiliarity with Hardhat or Foundry\nUnderstanding of blockchain fundamentals, gas optimization, events, and token standards\nBasic knowledge of TypeScript\nFamiliarity with Git and version-control workflows\nFluency in English\n\nBenefitsFlexible hours\nBirthday day off\nWellness programs","description_format":"text","description_chars":1206,"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":["Wellness"],"hiring_locations":[{"name":"Spain","iso":"ES","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Blockchain & Crypto","Financial Services","Cryptocurrencies","Asset Tokenization"],"lifecycle":[{"event":"open","at":"2026-10-28T15:48:00Z"},{"event":"close","at":"2026-10-30T15:48:00Z"}],"visa":[],"liveness":null,"pay":null,"html_url":"https://alion.io/job/brickken-junior-blockchain-developer","json_url":"https://alion.io/job/brickken-junior-blockchain-developer.json","meta":{"generated_at":"2026-10-31T03:46:38Z","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":5306,"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":1869358},"rest":"https://alion.io/mcp/rest/get_company?id=1869358"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fbrickken-junior-blockchain-developer"},{"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%2Fbrickken-junior-blockchain-developer"},{"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%2Fbrickken-junior-blockchain-developer"},{"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/brickken-junior-blockchain-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fbrickken-junior-blockchain-developer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3404752}},{"tool":"search_jobs","arguments":{"company":"brickken.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3404752},"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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