{"id":965251,"url":"https://alion.io/job/copernica-back-end-developer","title":"Back-end Developer","company":{"id":54522,"name":"Copernica","domain":"copernica.com","url":"https://alion.io/company/copernica","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Recruitee","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"junior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Amsterdam, Netherlands"],"countries":["NL"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":3500,"max":6500,"currency":"EUR","period":"month","gross":null,"usd_annual":87600},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"GitHub","optional":false},{"name":"JavaScript","optional":false},{"name":"PHP","optional":false},{"name":"RabbitMQ","optional":false},{"name":"Docker","optional":true},{"name":"Kubernetes","optional":true},{"name":"Linux","optional":true},{"name":"MySQL","optional":true},{"name":"Ubuntu","optional":true},{"name":"WebSockets","optional":true}],"status":"live","first_seen_at":"2026-08-05T09:31:48Z","employer_posted_date":"2026-08-05","last_verified_at":"2026-10-27T22:17:59Z","board_verified":true,"closed_at":null,"days_open":83,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":83},"description":"Copernica is looking for junior to senior Back-end Developers. You will create, maintain, and test databases, integrations, APIs, and other back-end processes for our principal products: Marketing Suite, MailerQ, and SMTPeter.\nTechnologies\nOur back end is primarily built with PHP, and uses C++ extensions for the components where speed matters most. Our software deals with large amounts of data on a daily basis, which often requires that we build custom software solutions. That is why we create and maintain many libraries, both in-house, and open source, such as our own MapReduce framework Yothalot, our C++ library for developing PHP extensionsand many more.\nWhat we offer you\nFlexibility with regard to working hours;\n\nThe possibility to work from home;\n\nA training budget;\n\nExpense allowance for travel, internet, and telephone;\n\nA beautiful office situated directly beside Amsterdam Central Station;\n\nSocial events;\n\nPension scheme.\n\nEnvironment\nWe put great effort into creating maintainable code with best programming practices in mind. To that end, we have created a feedback-rich environment that allows you to work with experienced colleagues, learn useful skills and stay updated with relevant technologies.\nAt Copernica, we prefer to work smart rather than hard. Where possible, we automate processes and organize them as efficiently as we can. How does this manifest further? Our colleagues:\nAre honest, direct, and straightforward\n\nAre independent in thought and action\n\nCan give and receive feedback\n\nAre pragmatic problem solvers\n\nCopernica's open source libraries\nPHP-JS: A bridge between PHP and JavaScript. This library allows for executing JavaScript code right from PHP code and to share variables between them.\nPHP-CPP: A well documented C++ library for developing PHP extensions. Extensions built on top of PHP-CPP are easy to understand and simple to maintain. No more deep knowledge of the Zend engine and pointer manipulation required.\nAMQP-CPP: A C++ library for asynchronous non-blocking communication with RabbitMQ. The library can be used to parse incoming data from a RabbitMQ server and to generate frames that can be sent to a RabbitMQ server.\nREACT-CPP: An event loop library that utilizes the C++ lambda functions to notify you when there is activity on a filedescriptor or on a timer. Internally. It is a wrapper around the libev library and does therefore also depend on that library.\nTake a look at our Github page for more information.\nRequirements\nRequired skills\nPHP or C++;\n\nExperience with Object Oriented Programming;\n\nFluent English in both spoken and written form.\n\nPreferred skills\nFamiliarity with SOLID principles;\n\nMySQL;\n\nMongoDB;\n\nWebSockets;\n\nDocker;\n\nKubernetes;\n\nRabbitMQ;\n\nLinux (we like Ubuntu).","description_format":"text","description_chars":2757,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"master","optional":false},"security_clearance":false,"languages":[{"language":"English","level":"Advanced (C1)","optional":false}]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Email Hosting & Delivery","Custom Software Development"],"lifecycle":[{"event":"open","at":"2026-09-16T13:45:26Z"}],"visa":[{"country":"NL","licensed_sponsor":true,"evidence":"Recognised sponsor of the Dutch immigration service (IND)","filings_12m":null,"filings_prev_12m":null,"green_card_filings_12m":null,"median_offered_wage_usd":null,"route":"Highly skilled migrants and regular labour","cap_exempt":false,"checked_at":"2026-10-19T06:52:34+00:00","sources":["IND: public register of recognised sponsors (work)"],"filings_for_role_12m":0}],"liveness":{"score":10,"band":"cold","label":"Long shot","p_open":1,"p_active":0.374,"p_room":0.28,"age_days":82,"expected_fill_days":28,"reasons":["conf:1","win:tail","crowd:junior"],"computed_at":"2026-10-27T05:46:45Z"},"pay":{"stated_usd_annual":87600,"is_top_pay":false},"html_url":"https://alion.io/job/copernica-back-end-developer","json_url":"https://alion.io/job/copernica-back-end-developer.json","meta":{"generated_at":"2026-10-28T01:08:41Z","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":1409,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-29T00:00:00Z"}},"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":54522},"rest":"https://alion.io/mcp/rest/get_company?id=54522"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fcopernica-back-end-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%2Fcopernica-back-end-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%2Fcopernica-back-end-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/copernica-back-end-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcopernica-back-end-developer"}]}