{"id":1687339,"url":"https://alion.io/job/lr-technologies-ingenieur-dsp-audio-hf","title":"Ingénieur DSP Audio H/F","company":{"id":2141729,"name":"LR Technologies","domain":"lrtechnologies.fr","url":"https://alion.io/company/lrtechnologies","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Teamtailor","truth_index":{"grade":"C","score":65,"open_postings":90,"ghost_share":0.589,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":29,"computed_at":"2026-10-20T05:45:00Z"}},"role":"Hardware","role_family":"Hardware","seniority":"senior","employment_type":"contractor","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["La Defense, France"],"countries":["FR"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":52000,"max_usd":92000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":14},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Git","optional":false},{"name":"Linux","optional":false},{"name":"MATLAB","optional":false},{"name":"Python","optional":false},{"name":"RTOS","optional":false},{"name":"Simulink","optional":false}],"status":"live","first_seen_at":"2026-04-15T08:01:32Z","employer_posted_date":"2026-04-15","last_verified_at":"2026-10-20T08:50:48Z","board_verified":true,"closed_at":null,"days_open":188,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":187},"description":"Au sein des équipes de notre client, acteur innovant dans le domaine de l’audio haute performance, vous intervenez sur le développement de solutions logicielles embarquées dédiées au traitement du signal.\nDans un environnement mêlant R&D avancée et exigences industrielles, vous contribuez à la conception d’algorithmes DSP et à leur intégration sur des systèmes embarqués pour des produits audio à forte valeur ajoutée.\nMissions\nDéveloppement et optimisation d’algorithmes de traitement du signal (DSP)\n\nImplémentation d’algorithmes audio sur des systèmes embarqués\n\nParticipation à la conception logicielle (architecture, spécifications techniques)\n\nIntégration des solutions DSP sur cibles embarquées (processeurs dédiés, SoC)\n\nOptimisation des performances (latence, consommation, qualité audio)\n\nCollaboration avec les équipes hardware pour l’intégration des solutions\n\nParticipation aux phases de test, validation et tuning des algorithmes audio\n\nAnalyse et correction des anomalies liées au traitement du signal\n\nContribution à l’amélioration continue des performances acoustiques des produits\n\nRédaction de la documentation technique associée\n\nEnvironnement technique\nSystèmes : Linux embarqué, RTOS, DSP embarqués\n\nLangages : C, C++, Python\n\nDomaines : traitement du signal, audio, acoustique\n\nOutils : MATLAB / Simulink, outils d’analyse audio, Git\n\nMatériels : processeurs DSP (type SHARC, ARM Cortex, SoC audio)\n\nMéthodes : Cycle en V, R&D, optimisation temps réel\n\nProfil recherché\nDiplômé(e) d’une école d’ingénieur ou d’un Bac+5 en traitement du signal, électronique ou informatique embarquée, vous justifiez d’au moins 5 ans d’expérience en développement logiciel embarqué avec une forte composante DSP.\nVous maîtrisez le développement en C/C++ et possédez de solides compétences en traitement du signal (idéalement appliqué à l’audio).\nVous avez une bonne compréhension des contraintes temps réel et des problématiques d’optimisation (latence, performance, consommation).\nUne expérience en environnement Linux embarqué ou sur processeurs DSP est attendue. La maîtrise d’outils comme MATLAB ou Python pour le prototypage est un plus.\nEnfin vous souhaitez participer au développement d'une société à taille humaine, Great Place To Work et labellisée ECOVADIS.","description_format":"text","description_chars":2274,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"French","level":"Advanced (C1)","optional":false}]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Internet Service Providers"],"lifecycle":[{"event":"open","at":"2026-10-02T10:35:35Z"}],"visa":[],"liveness":{"score":6,"band":"cold","label":"Long shot","p_open":1,"p_active":0.205,"p_room":0.28,"age_days":187,"expected_fill_days":29,"reasons":["conf:2","stale_co","velocity","ghost","win:tail","crowd:"],"computed_at":"2026-10-20T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/lr-technologies-ingenieur-dsp-audio-hf","json_url":"https://alion.io/job/lr-technologies-ingenieur-dsp-audio-hf.json","meta":{"generated_at":"2026-10-20T16:34:14Z","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":18948,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-21T00:00:00Z"}},"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":2141729},"rest":"https://alion.io/mcp/rest/get_company?id=2141729"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Flr-technologies-ingenieur-dsp-audio-hf"},{"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%2Flr-technologies-ingenieur-dsp-audio-hf"},{"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%2Flr-technologies-ingenieur-dsp-audio-hf"},{"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/lr-technologies-ingenieur-dsp-audio-hf\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Flr-technologies-ingenieur-dsp-audio-hf"}]}