{"id":3806537,"url":"https://alion.io/job/masterborn-junior-backend-developer-node-js","title":"Junior Backend Developer (Node.js)","company":{"id":680545,"name":"MasterBorn","domain":"masterborn.com","url":"https://alion.io/company/masterborn","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":null},"role":"Backend","role_family":"Backend","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":"structured","locations":["Wrocław, Poland"],"countries":["PL"],"hiring_countries":["PL"],"hiring_countries_total":1,"salary":{"min":6000,"max":10000,"currency":"PLN","period":"month","gross":null,"usd_annual":30660},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Claude Code","optional":false},{"name":"Express","optional":false},{"name":"Fastify","optional":false},{"name":"FigJam","optional":false},{"name":"GitHub","optional":false},{"name":"Jira","optional":false},{"name":"Nest.JS","optional":false},{"name":"Node JS","optional":false},{"name":"Scrum","optional":false},{"name":"Slack","optional":false},{"name":"Agile","optional":true},{"name":"AWS","optional":true},{"name":"Docker","optional":true},{"name":"JavaScript","optional":true},{"name":"Knex.js","optional":true},{"name":"Prisma","optional":true},{"name":"SQL","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-11-05T11:39:12Z","employer_posted_date":"2026-11-05","last_verified_at":"2026-11-06T21:41:08Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"Salary: PLN 6.000 - 10.000 + VAT (B2B); PLN 6.000 - 8.300 brutto (UZL)Contract summary:\n Rate: PLN 6.000 - 10.000 + VAT (B2B); PLN 6.000 - 8.300 brutto (UZL)\n Contract: B2B/UZL, paid days off, 100% remote (or hybrid/onsite - as you prefer), Polish time zone, Europe-based, flexible hours, full-time position, long-term contract, Scrum Teams and more\nPerks and Benefits: 3,000 PLN annual training budget, Multisport, Luxmed, Cafeteria Platform, Tech-talks, Learning sessions, and more\n Tools you’ll use: Apple MacBook Pro, Slack, GSuite, GitHub, Jira, Coda, FigJam, Claude Code\nYour future tasks:\nWriting personal-best possible JS/TS code with OOP flavour\nTechnical involvement in the product - finding ways to improve it\nWriting documentation for delivered code\nPeer code review\nReuse and improve the company knowledge base\nCommunicate with the team to efficiently translate business complexity (user stories/tasks) into solutions (end results/estimations)\nLearning, learning and learning ;)\nAbout you - Tech skills & Experience:\nAt least 6-12 months of commercial experience with Node.js\nUnderstand basic JS concepts (ES 2018+), use Classes, and follow recent additions/functionalities\nBasic experience with at least one Node.js backend framework (e.g. Express.js, NestJS, Fastify, etc) - know basic APIs/features, worked on at least 1 project involving such technologies, would be great to have commercial experience in it\nKnow what OOP is, understand basic good practices and data structures, want to have a SOLID and DRY code with the use of design patterns\nHave worked with SQL database (integration wise) with ORM or query builder tool (ie. Prisma, Knex)\nKnow how to use AI, but understands the consequences of its use and can independently write code without its support\nAbout you - Soft Skills:\nEnglish level B2/C1 to cooperate with American clients\nPolish level C1 to communicate easily within the team\nKnowledge-hungry, positive attitude\nEffective communication - crucial for seeking feedback and understanding others' perspectives\nOpen-minded to new ideas, perspectives, and feedback from experienced colleagues\nBeing open to change and adapting to different situations \nBeing aware of your strengths, weaknesses, and areas for improvements\nEnthusiastic for learning and taking on challenges\nActively seeking solutions and trying to figure things out on your own, but not being afraid to ask for help when needed\nNice to have:\nOpen-source contributions\nExperience in TypeScript and various BE frameworks\nUnderstand what Agile/Scrum is and want to work as a team towards one goal\nUnderstand the significance of MVP and aim to deliver top-notch results, even amid tight project timelines\nKnow what AWS is and gets why is it used\nServerless experience\nKnow how to run Docker images and how to use them\nRecruitment Process:\nCV Review\nPhone call with our Recruiter (15min)\nTechnical task (3h)\nSoft-skills interview with our Recruiter (30min)\nTechnical interview with our Specialist (1,5h)\nDecision and feedback","description_format":"text","description_chars":3016,"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":"Polish","level":"Advanced (C1)","optional":false},{"language":"English","level":"Upper-Intermediate (B2)","optional":false}]},"benefits":["Apple Macbook","Cafeteria"],"hiring_locations":[{"name":"Poland","iso":"PL","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Custom Software Development"],"lifecycle":[{"event":"open","at":"2026-11-05T13:40:26Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":30,"reasons":["conf:1","win:early","comp:junior"],"computed_at":"2026-11-06T05:58:05Z"},"pay":{"stated_usd_annual":30660,"is_top_pay":false},"html_url":"https://alion.io/job/masterborn-junior-backend-developer-node-js","json_url":"https://alion.io/job/masterborn-junior-backend-developer-node-js.json","meta":{"generated_at":"2026-11-06T22:13:24Z","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":63,"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":680545},"rest":"https://alion.io/mcp/rest/get_company?id=680545"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmasterborn-junior-backend-developer-node-js"},{"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%2Fmasterborn-junior-backend-developer-node-js"},{"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%2Fmasterborn-junior-backend-developer-node-js"},{"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/masterborn-junior-backend-developer-node-js\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmasterborn-junior-backend-developer-node-js"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3806537}},{"tool":"search_jobs","arguments":{"company":"masterborn.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3806537},"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. Docs: https://alion.io/developers"}}