{"id":28117,"url":"https://alion.io/job/sage-care-inc-software-engineer-agent-platform","title":"Software Engineer, Voice Platform","company":{"id":7617,"name":"Sage Care","domain":"sagecare.com","url":"https://alion.io/company/sage-care-inc","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"A","score":95,"open_postings":10,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":127,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Palo Alto, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":200000,"max":250000,"currency":"USD","period":"year","gross":null,"usd_annual":250000},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Rust","optional":false},{"name":"Voice Agents","optional":false},{"name":"LLM","optional":true}],"status":"live","first_seen_at":"2026-04-07T12:55:56Z","employer_posted_date":"2026-04-07","last_verified_at":"2026-10-17T09:00:38Z","board_verified":true,"closed_at":null,"days_open":192,"trust":{"level":"ok","repost_count":1,"flags":["company_stale"],"days_open":192},"description":"About Sage Care\nSage Care is a fast-growing, early-stage healthcare startup founded by exceptional leaders from Apple, Uber, Carbon Health and backed by top-tier venture capital (General Catalyst, Chelsea Clinton). With a strong customer pipeline, Sage Care is transforming healthcare by simplifying care navigation.\nOur platform makes it easier for patients to find the right doctor, helps providers focus on those who need them most, and ensures faster access to care, delivering better care and stronger economic outcomes at scale through harnessing the latest AI innovations.\nBuilding on our successful collaborations with health systems across the U.S., we have expanded internationally to the MENA region. We are now partnering with health systems there to deploy our AI-powered care navigation platform.\nAbout the Role\nWe’re hiring an experienced backend engineer to build the real-time platform behind our AI voice agents. You’ll build systems that keep live calls responsive and reliable, and make it easier for engineers to develop new patient workflows and adapt them for different healthcare partners.\nThe work spans session state, workflow execution, integrations, concurrency, and failure recovery. Prior Rust or AI experience is welcome but not required.\nWhat You'll Do\nDesign and evolve the architecture of our real-time voice platform as we scale across healthcare partners and more complex workflows.\n\nBuild the runtime and abstractions for session state, workflow execution, and model orchestration so product engineers can develop new flows.\n\nMake architectural tradeoffs across latency, concurrency, reliability, and cost, grounded in production behavior and load testing.\n\nDrive the migration to Rust, including service boundaries, runtime design, and rollout in production.\n\nDiagnose systemic performance and reliability problems, and address their root causes across our services and external dependencies.\n\nSet AI native engineering standards for platform changes, including design reviews, testing, observability, and production readiness.\n\nWhat We're Looking For\nRequired\n5+ years of professional software engineering experience, with substantial experience building and operating real-time production backend systems.\n\nStrong experience designing, building, and operating high-load, latency-sensitive backend systems.\n\nA track record of leading substantial technical projects, making architecture decisions, and delivering them through production rollout.\n\nDeep understanding of concurrency, asynchronous execution, networking, and distributed systems failure modes.\n\nExperience diagnosing performance bottlenecks and reliability issues using production evidence.\n\nAbility to design abstractions and service boundaries that make other engineers more effective.\n\nStrong coding skills and sound judgment about when to build for scale and when to keep things simple.\n\nNice to Have\nRust experience, particularly in production systems.\n\nExperience with voice, audio, streaming, or telephony infrastructure.\n\nExperience building agent runtimes, model orchestration, or LLM serving systems.\n\nExperience evolving a platform while supporting live production 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