{"id":3526753,"url":"https://alion.io/job/cshark-qa-engineer-embedded-audio-quality","title":"QA Engineer – Embedded & Audio Quality","company":{"id":1383,"name":"CSHARK","domain":"cshark.com","url":"https://alion.io/company/cshark","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"QA","role_family":"QA","seniority":null,"employment_type":"contractor","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":["Wrocław, Poland"],"countries":["PL"],"hiring_countries":["PL"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":37000,"max_usd":77000,"period":"year","method":"role_country_seniority_unknown","sample_n":307},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Text-to-Speech","optional":true}],"status":"live","first_seen_at":"2026-10-30T11:48:06Z","employer_posted_date":null,"last_verified_at":"2026-10-30T11:48:06Z","board_verified":false,"closed_at":null,"days_open":1,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":1},"description":"About the project \nYou will join a CSHARK team delivering a project for our client, a technology company building on-device audio and speech products. \nThis role combines embedded QA with speech and audio quality. You will verify that the client’s SDK performs well on devices and that the voice it produces sounds right: intelligible, natural, true to the speaker and free of artifacts. Audio experience is a must and at the core of the role. \nYour responsibilities \nRun performance tests of the embedded SDK on target devices (latency, resource usage, stability). \n\nEvaluate speech quality: intelligibility, naturalness, speaker identity, artifacts and end-to-end latency. \n\nApply and automate objective metrics such as PESQ, ViSQOL, STOI and WER. \n\nDesign and run subjective listening tests, and analyse the results. \n\nSet up and use acoustic test rigs for repeatable measurements. \n\nReport findings to research and engineering teams in a clear, data-driven way. \n\nWhat we expect \nExperience in QA for embedded, mobile or audio software. \n\nPractical knowledge of speech/audio quality metrics (PESQ, ViSQOL, STOI, WER or similar). \n\nExperience organising listening tests or perceptual evaluations. \n\nUnderstanding of acoustic measurement setups. \n\nA good ear and attention to detail. \n\nFluent English. \n\nNice to have \nBackground in audio engineering, acoustics or speech processing. \n\nExperience with on-device profiling (adb, Perfetto). \n\nExperience testing speech enhancement, voice conversion or TTS systems. \n\nWhat we offer \nA fully remote role on a long-term project for an international client. \n\nWork on cutting-edge on-device audio technology used in real consumer devices. \n\nA team of experienced engineers and direct contact with the client’s R&D. \n\nStable cooperation with CSHARK, plus support from our delivery and people teams throughout the project. \n\nTech stack\nQA for embedded software\nSpeech/audio quality metrics\nOrganising listening tests\nAcoustic measurement setups\nAttention to detail\nBackground in audio engineering\nExperience with on-device profiling\nTesting speech enhancement\nTesting voice conversion\nTesting TTS 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