{"id":1833374,"url":"https://alion.io/job/three-ireland-network-test-engineer-ran","title":"Network Test Engineer RAN","company":{"id":1844208,"name":"Three Ireland","domain":"three.ie","url":"https://alion.io/company/three-ie","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Cornerstone","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":"2026-10-10T05:45:15Z"}},"role":"Networking","role_family":"Networking","seniority":null,"employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Dublin, Ireland"],"countries":["IE"],"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":"Wireshark","optional":false},{"name":"Bash","optional":true},{"name":"Linux","optional":true},{"name":"Python","optional":true}],"status":"live","first_seen_at":"2026-10-04T12:42:17Z","employer_posted_date":"2026-10-04","last_verified_at":"2026-10-11T21:54:57Z","board_verified":true,"closed_at":null,"days_open":7,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":7},"description":"I n our world things change by the millisecond We build the technology that creates amazing moments and better connects our customers. Ready to play your part? Join us and Be Phenomenal.\nWorking towards the same shared goal of better connectivity, our tech teams enjoy a high degree of freedom. We love hearing ideas and seeing them come to life. With great resources, you’ll get to be part of a team at the foundations of the transformation of our business.\nWho knows what the next innovation will be? That’s what makes a career at Three so exciting. Since we set foot in Ireland, we’ve done things differently Investing in infrastructure, we built a network that now connects 2.2 million customers nationwide, carrying more data than all alternative telecommunications providers combined.\nWe take the script and rip it up, we’re a big-hearted energetic bunch, striving for a better connected life. We encourage our employees to face their weaknesses, to really open themselves up to new tasks and projects in a super-charged and rich learning environment. We want you to become the best version of yourself.\nJoin us as Network Test Engineer RAN This position resides within the Three Ireland Networks Test Team, which is responsible for validating and assuring the quality of mobile network services across Voice, Messaging, Data, RAN, IP, Service Control and Value Added Services. As a Network Test Engineer, you will support the testing and validation of Radio Access Network (RAN) features and services across Three Ireland's mobile network. Working as part of a team of experienced network engineers, you will contribute to the successful introduction of new technologies and enhancements of the mobile network.\nThis is a collaborative and fast-paced environment and the suitable candidate must show a high level of initiative, strong problem-solving ability, and a willingness to learn and develop their technical expertise. The role reports to the Networks Test Manager and works closely with colleagues across Network Design, Operations, Core Network, and Vendor teams to support the delivery of high-quality network services. What else it involves: As a Network Test Engineer, you will contribute to a range of testing and validation activities, including: Execute test plans and test cases for RAN features and services across all RAN technologies.\nSupport the testing of network changes, software upgrades, and new technology introductions. Assist with the setup, configuration, and maintenance of RAN test lab environments and equipment. Perform functional, regression, interoperability, and performance testing.\nExecute mobility and service validation scenarios, including handovers, VoLTE, and data service testing. Analyse test results, logs, traces, and network data to identify and document issues. Troubleshoot and isolate issues related to RF performance, signalling failures, call drops, attach failures, and data session interruptions.\nWork closely with internal teams and vendors during testing and validation activities. Produce accurate test documentation, reports, and defect records. Contribute to test automation and process improvement initiatives where appropriate.\nEnsure compliance with 3GPP standards, operator requirements, and vendor specifications during feature validation and network integration activities. The skills we're looking for: The successful candidate should demonstrate strong analytical capability, attention to detail, and a desire to develop expertise in mobile network technologies and testing. Essential Skills Experience Degree in Telecommunications, Electronic Engineering, Computer Science, Information Technology, or a related discipline, or equivalent practical experience.\nHands-on experience with physical RAN lab setup and integration, including cabling, rack installation, power connections, antenna/RF path configuration, test UE setup, and coordination of lab infrastructure for end-to-end network testing Understanding of mobile telecommunications technologies and networking fundamentals. Knowledge of mobile network concepts, with a particular understanding of Radio Access Network architecture and functionalities. Understanding of RF concepts including propagation, interference, handovers, carrier aggregation, MIMO, and beamforming.\nFamiliarity with IP networking principles and protocols. Experience using troubleshooting and diagnostic tools such as Wireshark or equivalent. Ability to analyse technical information and investigate issues in a structured manner.\nStrong problem-solving and analytical skills. Good written and verbal communication skills. Ability to work effectively both independently and within a team environment.\nStrong organisational skills and attention to detail. Nice to Have: Experience in telecommunications, network testing or operations environments. Familiarity with mobile network testing tools such as TEMS, Nemo, QXDM, or vendor-specific platforms.\nAwareness of 3GPP standards and mobile network procedures. Basic scripting or automation experience using Python, Bash, or similar technologies. Knowledge of Linux operating systems.\nExposure to Ericsson, or similar telecom vendor technologies. Understanding of VoLTE, mobility procedures, and network performance testing concepts. Benefits of Working at Three Flexible working with our new Hybrid model, our employees will enjoy more flexibility working from home and our office locations (3 days per week office based).\nPlease see job description for the office location of this role. Competitive salary, annual performance bonus pension contribution 25 days holidays plus 2.5 company days Annual Leave buy or sell (buy or sell up to 5 days AL each year) Healthcare Insurance through our flexible benefits programme Life assurance, phone laptop, subsidized canteen Access to learning development tools such as Coursera Free on-site parking There’s a lot more to us than meets the eye. You may think you know us, but we’re full of surprises.\nIntrigued? Join us and Be Phenomenal. Apply now at: https://www.three.ie/careers #Jobs A t Three, we are committed to equity, diversity and inclusion.\nAs Ireland’s largest mobile telecommunications provider, we provide a better connected life for our diverse customer base, and want our teams to reflect this. We welcome and celebrate all identities and strive to create a culture of belonging where employees can thrive as their authentic selves. If you do not ‘tick every box’ in this job description, you likely have other valuable skills that would make you a great fit for one of our teams.\nIf you feel this role is for you, then please apply! #Jobs If you require reasonable adjustments for your interview, please let us know when scheduling your interview, or alternatively, please email  Apply now at Three, a Phenomenal career awaits!","description_format":"text","description_chars":6863,"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":["Annual leave","Equity","Flexible schedule"],"hiring_locations":[{"name":"Ireland","iso":"IE","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Telecommunications","Broadband"],"lifecycle":[{"event":"open","at":"2026-10-04T12:42:17Z"}],"visa":[],"liveness":{"score":84,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.842,"p_room":1,"age_days":5,"expected_fill_days":27,"reasons":["conf:2","win:early"],"computed_at":"2026-10-10T05:45:15Z"},"pay":null,"html_url":"https://alion.io/job/three-ireland-network-test-engineer-ran","json_url":"https://alion.io/job/three-ireland-network-test-engineer-ran.json","meta":{"generated_at":"2026-10-11T23:55:36Z","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":15312,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-12T00:00:00Z"}},"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":1844208},"rest":"https://alion.io/mcp/rest/get_company?id=1844208"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fthree-ireland-network-test-engineer-ran"},{"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%2Fthree-ireland-network-test-engineer-ran"},{"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%2Fthree-ireland-network-test-engineer-ran"},{"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/three-ireland-network-test-engineer-ran\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fthree-ireland-network-test-engineer-ran"}]}