{"id":2973024,"url":"https://alion.io/job/ericsson-junior-sw-developer","title":"Junior SW Developer","company":{"id":56456,"name":"Ericsson","domain":"ericsson.com","url":"https://alion.io/company/ericsson","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Eightfold","truth_index":{"grade":"B","score":83,"open_postings":85,"ghost_share":0,"stale_share":0.694,"repost_share":0,"time_to_fill_p50_days":33,"computed_at":"2026-10-21T05:46:15Z"}},"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":["Madrid, Spain"],"countries":["ES"],"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":"C++","optional":false},{"name":"Go","optional":false},{"name":"Linux","optional":false},{"name":"Python","optional":false},{"name":"TCP/IP","optional":false},{"name":"Unix","optional":false}],"status":"live","first_seen_at":"2025-01-02T14:48:54Z","employer_posted_date":"2026-09-09","last_verified_at":"2026-10-22T02:04:34Z","board_verified":true,"closed_at":null,"days_open":657,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":656},"description":"Join our Team\nAbout this opportunity\nWe are looking for Junior Software developers in the area of 5G Core Network, with passion for building new functionalities related with 5G mobile data processing (especially, in the programming of open platform, real time and high-availability systems).\nWhat you will do\nYou will work in a multi-functional team in the development of new functionalities for 5G User Plane.\nParticipate the full life-span of the software feature: from early phases (analyzing the solution and setting requirements), development phase (coding and testing), and final deployment on live network (supporting customer teams).\nBe part of a multinational organization, with teams distributed in Spain, Sweden, and China.\nYou will bring\nA bachelor’s or master’s degree in computer science, telecommunication engineering or related field.\n\nWilling to or being already proficient in programming of open-platform, real-time and high-available systems, as well as scripting.\n\nProgramming in C, and at least one scripting language (i.e. python, shell/bash) on UNIX/Linux is required.\n\nCapacity to investigate and debug complex issues. Including performance tuning experience, troubleshooting, core dump analysis, etc.\n\nCloud native software stacks and execution environments. Containers (i.e. Dockers).\n\nGood written and spoken English, confident working in international environments.\n\nCompetences of extra value:\nKnowledge in operating system architectures and capacity to model scalable designs and solutions.\n\nKnowledge in TCP/IP Networking, and evolution transport protocols (like QUIC), data networks and IP-based applications (HTTP, HTTPS, ...), Routing and Signaling.\n\nKnowledge as a Linux user and network administrator.\n\nExperience in configuration of network equipment.\n\nKnowledge in Mobile network architecture 4G/5G. Interfaces, protocols, functions\n\nC++ and/or Golang.\n\nWe are seeking a talented candidate for our team willing to work in a flexible environment combining both working from home and in-office presence in Madrid (50%).\nWhy join Ericsson?\nAt Ericsson, you´ll have an outstanding opportunity. The chance to use your skills and creativity to push the boundaries of what´s possible. To build never seen before solutions to some of the world’s toughest problems. You´ll be challenged, but you won’t be alone. You´ll be joining a team of diverse innovators, all driven to go beyond the status quo to craft what comes next.\nClick here to find all you need to know about what our typical hiring process looks like.\nWe will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation.\nEncouraging a diverse and inclusive organization is core to our values at Ericsson, that's why we champion it in everything we do. We truly believe that by collaborating with people with different experiences we drive innovation, which is essential for our future growth. We encourage people from all backgrounds to apply and realize their full potential as part of our Ericsson team.\nEricsson is proud to be an Equal Opportunity and Affirmative Action employer, learn more.","description_format":"text","description_chars":3306,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[{"language":"English","level":"All levels","optional":false}]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Mobile Networks","Telecom Infrastructure","Network Equipment"],"lifecycle":[{"event":"open","at":"2026-10-21T03:18:20Z"}],"visa":[],"liveness":{"score":1,"band":"cold","label":"Long shot","p_open":1,"p_active":0.05,"p_room":0.28,"age_days":656,"expected_fill_days":33,"reasons":["conf:2","stale_co","velocity","win:tail","crowd:junior,brand"],"computed_at":"2026-10-21T05:46:15Z"},"pay":null,"html_url":"https://alion.io/job/ericsson-junior-sw-developer","json_url":"https://alion.io/job/ericsson-junior-sw-developer.json","meta":{"generated_at":"2026-10-22T04:54:20Z","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":5530,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-23T00:00:00Z"}},"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":56456},"rest":"https://alion.io/mcp/rest/get_company?id=56456"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fericsson-junior-sw-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%2Fericsson-junior-sw-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%2Fericsson-junior-sw-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/ericsson-junior-sw-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fericsson-junior-sw-developer"}]}