{"id":646357,"url":"https://alion.io/job/parallel-wireless-senior-phy-software-engineer-2g4g5g","title":"Senior PHY Software Engineer – 2G/4G/5G","company":{"id":4814,"name":"Parallel Wireless","domain":"parallelwireless.com","url":"https://alion.io/company/parallel-wireless","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"B","score":81,"open_postings":18,"ghost_share":0,"stale_share":0.722,"repost_share":0.056,"time_to_fill_p50_days":50,"computed_at":"2026-11-05T05:54:30Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Bengaluru, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":18000,"max_usd":42000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":168},"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Python","optional":false},{"name":"Git","optional":true},{"name":"Kibana","optional":true},{"name":"Linux","optional":true},{"name":"LLM","optional":true},{"name":"MATLAB","optional":true},{"name":"Wireshark","optional":true}],"status":"live","first_seen_at":"2026-09-10T17:20:51Z","employer_posted_date":"2026-09-10","last_verified_at":"2026-11-06T00:20:52Z","board_verified":true,"closed_at":null,"days_open":56,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":56},"description":"Senior PHY Software Engineer - 2G/4G/5G\nWe are looking for a highly experienced Senior PHY Software Engineer with 10+ years of experience in cellular PHY software development, integration, debugging, and system troubleshooting across 2G, 4G, and 5G technologies.\nThe role will primarily focus on PHY development, debugging, issue resolution, and integration within our cellular products. As part of our ongoing effort to improve engineering productivity and RCA capabilities, the engineer will also contribute to our AI-assisted development and Root Cause Analysis initiative, helping build and fine-tune AI-based tools/agents for PHY log and crash analysis. The ideal candidate should be a strong PHY domain expert and problem solver, capable of going beyond linear debugging approaches and identifying root causes by correlating evidence across different sources and layers.\nWhat you'll do:\n- Design, develop, debug, integrate, and maintain PHY software for cellular communication systems.\n- Work across 2G, 4G, and 5G, understanding PHY behavior, implementation, and interaction with the overall system.\n- Analyze complex PHY issues using logs, traces, crash dumps, KPIs, configuration, and system behavior to identify root causes.\n- Develop and optimize PHY software and algorithms to improve performance, reliability, and product quality.\n- Work with existing codebases and repositories, understand implementation flows, and extend or modify them without destabilizing existing functionality.\n- Collaborate with MAC, RLC, RRC, RF, DSP, HW, and system teams to resolve complex product and field issues.\nWhat you should have:\n10+ years of experience in wireless communication / PHY software development, integration, debugging, or system troubleshooting.\nStrong hands-on experience with 4G/LTE and/or 5G NR PHY, with working knowledge of other cellular RATs such as 2G.\nGood understanding of PHY architecture, algorithms, implementation, and interaction with other layers.\nStrong experience in PHY log analysis, debugging, issue isolation, and root-cause analysis, including the ability to identify non-obvious failure mechanisms.\nAbility to correlate logs, traces, configuration, KPIs, and system behavior rather than relying only on predefined or linear debugging procedures.\nStrong C/C++ programming and debugging skills, with good Python/scripting skills for automation and analysis.\nGood understanding of DSP, digital communication, PHY/RF concepts, and relevant 3GPP specifications.\nAI & Automation - Good to Have:\nExposure to AI/LLM-based developer tools or coding assistants.\nInterest in applying AI to software development, debugging, log analysis, and RCA.\nExperience with automation, log-processing, or internal debugging/analysis tools.\nWillingness to learn and adopt AI-assisted development and agent-based troubleshooting approaches.\nAI experience is not mandatory. Strong PHY domain expertise, development experience, and troubleshooting ability are the primary requirements.\nNice to Have:\nExperience across multiple RATs, particularly 2G, 4G, and 5G.\nExperience with O-RAN / Open RAN or advanced 5G PHY features.\nExperience with MATLAB or similar tools for PHY analysis, modeling, or simulation.\nExperience with Linux, Git, ARM, SIMD/NEON/AVX, or optimized DSP implementations.\nExperience with telecom debugging and analysis tools such as Wireshark, Kibana, or similar platforms.\nRole Evolution:\nThe initial focus will be on understanding the existing PHY implementation, logs, failure patterns, and troubleshooting methodologies. Over time, the engineer will contribute to building and improving AI-assisted RCA capabilities and use these capabilities as part of regular PHY development, debugging, and bug-fixing activities.\nThe objective is to combine deep PHY expertise with AI-assisted engineering to improve debugging efficiency, RCA accuracy, and overall product quality.","description_format":"text","description_chars":3897,"description_truncated":false,"requirements":{"experience_years_min":10,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Mobile Networks","Network Equipment"],"lifecycle":[{"event":"open","at":"2026-09-10T20:14:49Z"}],"visa":[],"liveness":{"score":32,"band":"fade","label":"Fading","p_open":1,"p_active":0.591,"p_room":0.55,"age_days":55,"expected_fill_days":50,"reasons":["conf:1","stale_co","velocity","win:tail"],"computed_at":"2026-11-05T05:54:30Z"},"pay":null,"html_url":"https://alion.io/job/parallel-wireless-senior-phy-software-engineer-2g4g5g","json_url":"https://alion.io/job/parallel-wireless-senior-phy-software-engineer-2g4g5g.json","meta":{"generated_at":"2026-11-06T01:32:20Z","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":2541,"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":4814},"rest":"https://alion.io/mcp/rest/get_company?id=4814"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fparallel-wireless-senior-phy-software-engineer-2g4g5g"},{"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%2Fparallel-wireless-senior-phy-software-engineer-2g4g5g"},{"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%2Fparallel-wireless-senior-phy-software-engineer-2g4g5g"},{"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/parallel-wireless-senior-phy-software-engineer-2g4g5g\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fparallel-wireless-senior-phy-software-engineer-2g4g5g"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":646357}},{"tool":"search_jobs","arguments":{"company":"parallelwireless.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":646357},"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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