Senior UI Developer

Company: Amgen

Salary: Not provided

Location: , United States

react

Description

• Own the experience for pre-defined AI products from understanding user needs and shaping UX designs through interaction design, UI implementation, launch, stabilization, support transition, adoption and measurable outcomes • Lead user-centred discovery with product and UX partners • Define user needs, workflows, roles, intended use, acceptance criteria, accessibility needs, adoption path, operating owner, value hypothesis and measurable outcomes • Translate user research, journeys, workflows, rules, handoffs, exceptions, data dependencies and human decision points into UX designs, interaction patterns, prototypes and implementable UI requirements • Own responsive UI frontend architecture across human-AI experience, design systems, component composition, state, secure sessions, accessibility, browser performance, API integration, telemetry and graceful failure • Lead modern UI delivery using JavaScript or TypeScript and React, Next.js or comparable component-based frameworks • Translate UX designs and prototypes into accessible, performant production interfaces • Contribute full-stack expertise to API contracts, integrations, data flows and production support • Design and implement human-AI UX and UI experiences integrating model services, LLMs, RAG, search, agents, BI and deterministic automation • Establish risk-based UI, accessibility, integration and end-to-end testing • Contribute to CI/CD, staged release, telemetry, rollback, incident response, browser performance, runbooks and support ownership • Coordinate governance and GxP controls • Create reusable UI components, patterns and playbooks • Lead root-cause analysis, measure adoption and experience quality, mentor engineers and improve frontend delivery practices • Partner with product, backend, data and ML teams to translate designs into production interfaces integrated with APIs, services, data and AI capabilities

Requirements

• Doctorate Degree and 1 year of experience in Computer Science, IT or related field OR Master’s degree with 8 - 10 years of experience OR Bachelor’s degree with 10 - 12 years of experience OR Diploma with 12 - 14 years of experience • UX design, frontend and human-AI engineering experience • User research, journeys, information architecture, interaction design, wireframes and prototypes • Accessible frontend architecture, component design, state, forms, secure sessions, streaming, feedback, telemetry and recoverable failure • Full-stack experience with API contracts, services, events, workflows, persistence, enterprise integrations, data flows, authentication, authorization, resilience and production support • Production integration of predictive ML, foundation models, embeddings, vector or graph retrieval, RAG, structured output, bounded agents, document or vision capabilities, BI and deterministic workflows • Experience with representative testing and AI evaluation, repository governance, CI/CD, infrastructure as code, quality gates, staged release, SLOs, observability, incidents, rollback, disaster recovery and FinOps • Knowledge of identity, authorization, least privilege, tenant isolation, secrets, OWASP, supply-chain controls, privacy, threat modeling, prompt/tool safeguards, validation, auditability, accessibility and GxP evidence • Demonstrated end-to-end ownership of UX design and UI delivery for at least one production web application, digital product or substantial user-interface workstream that delivered a measurable outcome • Strong hands-on proficiency in JavaScript or TypeScript, HTML and CSS, with experience using React, Next.js or a comparable component-based framework • Working full-stack experience with APIs, integrations, data flows and production support • Preferred: experience with user research, journey mapping, interaction design, wireframing, prototyping, design systems, multimodal or collaborative interfaces, data visualization and advanced accessibility • Preferred: experience with API gateways, REST or GraphQL APIs, event platforms, durable workflows, stream processing, service mesh and enterprise integration architecture • Preferred: experience with vector or graph databases, model and agent gateways, MCP-style tool integration, durable agents, agent evaluation, process mining, UiPath or n8n • Preferred: experience with AWS, Bedrock or SageMaker, Databricks, Spark, Kubernetes, serverless services, infrastructure as code, OpenTelemetry, policy as code or internal developer platforms • Preferred: experience delivering GxP-relevant, validated, pharmaceutical, healthcare or other high-impact systems • Strong technical leadership, mentoring and ownership while remaining hands-on • Excellent analytical judgment, troubleshooting and clear communication of evidence, limitations and trade-offs • Cross-functional leadership and close partnership with product, business, UX, architecture, backend, ML, platform and control functions • Pragmatism, resilience and continuous improvement through incidents, feedback, reuse and measured outcomes • Sponsorship for this role is not guaranteed

Benefits

• A comprehensive employee benefits package, including a Retirement and Savings Plan with generous company contributions • Group medical, dental and vision coverage • Life and disability insurance • Flexible spending accounts • A discretionary annual bonus program, or for field sales representatives, a sales-based incentive plan • Stock-based long-term incentives • Award-winning time-off plans • Flexible work models where possible • Career development opportunities • Work/life balance support

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