Job Title: AI Full-Stack Engineer (Mobile + Applied AI/ML)

Company Name: Wesper

Job Details: $70k-$80k/yrRemoteFull,Time

Job Url: https://hiring.cafe/viewjob/vuafh3a5b8rzlt10

Job Description: Posted 1d agoAI Full-Stack Engineer (Mobile + Applied AI/ML)@ WesperView All JobsWebsiteUnited States$70k-$80k/yrRemoteFull TimeResponsibilities:Building AI features, Developing backend services, Implementing LLM workflowsRequirements Summary:3–5 years of software development experience; mobile app development (iOS and/or Android); strong Python backend experience; AI/LLM tooling experience; production systems exposure; mobile performance and UX focus.Technical Tools Mentioned:Python, Swift, Kotlin, React Native, Flutter, APIs, OpenAI API, LangChain, LLM tools
ROLE DESCRIPTION We’re hiring a mid-level, product-oriented engineer who is comfortable building across AI systems and mobile applications. This person will help bring AI-powered features directly into the hands of users through iOS and Android experiences. You’ll work across backend services, AI/ML systems, and mobile apps, turning complex physiological and clinical data into intuitive, high-impact product features. This is a hands-on builder role focused on shipping—ideal for someone who uses modern AI tools in their daily workflow and enjoys working across the stack, including mobile.This role reports to the CTO. ABOUT WESPERMission driven startup aiming to make accurate sleep testing more convenient, affordable, and accessible. Sleep disorders are a hidden epidemic which reduces quality and length of life for more than 10% of the population. The difficulty in diagnosing and monitoring sleep conditions is a major obstacle to the health of 100Ms of people worldwide.Wesper is transforming the sleep industry by shrinking an entire sleep lab to a single wearable patch, helping millions live better, longer lives. Our platform delivers consumer comfort with clinical performance by using cutting-edge sensor design, a cloud-native suite of state-of-the-art algorithms and a sleek mobile app, creating a seamless experience for both patient and doctor.WHAT YOU WILL DO Build and ship AI-powered features into iOS and Android applicationsDevelop backend services and APIs that power mobile-first AI experiencesImplement LLM-based workflows, including:Retrieval-augmented generation (RAG)Prompt engineering and evaluationLightweight agent-based interactionsTranslate AI outputs into clear, responsive mobile UX patternsCollaborate with product and design to deliver end-to-end mobile featuresContribute to data pipelines and ML systems for physiological and sleep dataSupport deployment, monitoring, and iteration of AI systems in productionUse AI-assisted coding tools to increase development speed and qualityREQUIRED SKILLS AND QUALIFICATIONS3–5 years of experience building and shipping software productsExperience developing mobile applications (iOS and/or Android):Native (Swift / Kotlin) or cross-platform (React Native, Flutter)Strong Python skills and experience building backend services/APIsExperience integrating APIs into mobile apps and working with real-time dataExposure to modern AI/LLM tools (OpenAI APIs, LangChain, etc.)Experience contributing to production systems (mobile, backend, or AI)Strong understanding of mobile performance, responsiveness, and UX constraintsBONUS ITEMSExperience building AI-powered features in mobile apps (chat interfaces, summaries, recommendations)Familiarity with on-device vs. cloud-based AI tradeoffsExperience with healthcare, wearables, or sensor dataExposure to Bluetooth, HealthKit, Google Fit, or similar integrationsFamiliarity with embeddings, vector databases, or RAG pipelinesExperience with cloud platforms (AWS/GCP) and basic MLOps conceptsStartup or small-team experience OUR TEAM - Built for GoodWe pride ourselves on transparent communication— open discussion is critical to our performance and is how we continue to grow. We focus on accountability, humility, and constant learning. We believe in finding a better way through the use of data and attention to detail. We work towards making sleep medicine easy and we do it for our users. COMPENSATIONThis role has a fixed yearly base salary of $70,000 - $80, 000 USD. The range displayed reflects the minimum and maximum target for new hire salaries for the position. Individual pay is determined by work location and additional factors, including job-related skills, experience, and relevant education or training.BENEFITSFully remote and flexible work environmentFlexible paid time offGlobal teamFriendly, nerdy coworkersOpen door policyEncouragement to pursue initiativesSupport for personal developmentReferral bonuses