[Remote] Senior AI Engineer (Full Stack)

Note: The job is a remote job and is open to candidates in USA. Blockchains, Inc. is focused on creating a digital future where individuals have control over their digital identities. As a Senior AI Engineer (Full Stack), you will bridge AI systems and user interactions by delivering AI-powered products and features, ensuring they are polished and production-ready while collaborating with product managers and designers.ResponsibilitiesPartnering with product managers, designers and external vendors to define how AI interactions should feel: response tone, citation style, error states, loading experiences, and streaming behaviorTranslating real-world usage patterns directly into prompt improvements, UX adjustments, and feature iterations, closing the loop between what users experience and what ships nextBuilding AI POCs rapidly to test hypotheses with stakeholders before committing to full buildsBuilding real-time AI interfaces in React, Next.js, and TypeScript: streaming responses, citation display, agent status indicators, and interactive document experiencesOwning the full feature lifecycle from back-end API to browser, ensuring AI features are fast, accessible, and reliable under production loadIntegrating LLM APIs with streaming, prompt engineering, and error handling across the full stackConsuming and extending context augmentation pipelines: vector RAG, CAG, Text-to-SQL, MCP-based context engineering, built by the AI systems teamApplying data privacy best practices at every layer: PII handling, GDPR/CCPA compliance, and encryption from the UI to the APIDeploying AI features on AWS using Docker/Kubernetes, and GitLab CI/CDSkillsAt least 2 years of experience delivering AI-powered product featuresMinimum of 5 years of full-stack software engineering experienceStrong Python skillsWorking knowledge of LLM APIs, including prompt & context engineering, streaming integration, and handling edge cases in productionFamiliarity with context augmentation strategies, vector RAG, CAG, Text-to-SQL, and MCP-based context engineeringStrong front-end skills in React, Next.js, and TypeScriptDirect experience building streaming, real-time, or AI-driven user interfacesPractical understanding of data privacy (PII handling, GDPR/CCPA) and encryption applied across front-end and back-end layersFamiliarity with AWS, Docker, Kubernetes, and GitLabProven track record of building AI POCs and prototypes that ship to real usersAbility to go from idea to working prototype quicklyStrong product instincts and user-first mindsetAbility to exercise strong judgment on when to build versus buy and how to scope an MVP versus a production systemExperience mentoring junior engineers and helping them ship better AI product workTreat AI safety as a first-class concern, applying prompt injection awareness, output validation, access controls, and data leakage preventionFamiliarity with Node.js or .NETBachelor's degree in Computer Science, Engineering, or a related fieldExperience working directly with designers and product managers to define AI interaction patternsExposure to agent orchestration frameworks such as LangChain, LlamaIndex, or LangGraphExposure to local open-source models and fine-tuning conceptsCompany OverviewWe are a purpose-driven innovator committed to freeing your digital identity from the challenges of corporate control. It was founded in 2014, and is headquartered in Sparks, Nevada, USA, with a workforce of 51-200 employees. Its website is https://www.blockchains.com.Company H1B SponsorshipBlockchains, Inc. has a track record of offering H1B sponsorships, with 1 in 2022, 1 in 2021, 1 in 2020. Please note that this does not guarantee sponsorship for this specific role.