UI/UX Developer

Senior UI/UX Engineer (AI Platforms & Security Systems) Client Reference: 222701-1 Type: Contract Duration: 12 – 24 months Rate: ~$65/hr Based on location and experience W2 hourly (we cannot work 1099/c2c) Location: Charlotte, NC; Plano, TX; Chandler, AZ; Iselin, NJ; Minneapolis, MN Interview Process: 1st round coding assessment, 1 panel video interview Overview: Our client, a Fortune 50 Financial Services Firm is seeking a Senior UI/UX Engineer to design and build advanced, production‑grade web interfaces for internal and enterprise‑facing AI security platforms and related research and risk‑analysis systems. This role sits at the intersection of UX design, frontend engineering, and AI system observability. You will be responsible for translating complex backend reasoning, evidence graphs, and multi‑stage AI workflows into clear, intuitive, and scalable user experiences—without oversimplifying the underlying technical truth. The ideal candidate is not only a designer, but a systems thinker who understands how modern AI pipelines, APIs, and security architectures work, and who can design interfaces that faithfully represent reality rather than aspirational diagrams. What You’ll Build: You will design and implement web applications that: Visualize AI system architectures derived from real code, IaC, and documentation Present multi‑step assessment workflows (upload → scan → reconcile → classify) Render large, dynamic graphs (hundreds to thousands of nodes) with performance‑aware interaction patterns Expose epistemic states (factual vs declared vs conceptual) clearly to users Support human‑in‑the‑loop audit workflows, overrides, and immutable decision trails Scale from early wireframes to enterprise‑grade platforms used by security architects and risk teams Key Responsibilities UX & Interaction Design Design end‑to‑end workflows for complex AI analysis tools (e.g., 4‑step wizard flows, async scan progress, review & reconciliation stages) Translate abstract system concepts (evidence confidence, conflicts, shadow AI, governing patterns) into clear visual metaphors Define UI patterns for: Confidence scoring and provenance Conflict surfacing (MME / UME) Human override & justification flows Evidence tracing from UI → source code Create wireframes, interaction specs, and component behavior definitions that engineers can directly implement Frontend Engineering Build production UIs using TypeScript with modern frontend frameworks Implement high‑performance graph visualizations (canvas/WebGL‑based, not DOM‑bound) Integrate frontend applications with Flask‑ and FastAPI‑based backends Consume REST and WebSocket APIs for real‑time progress updates Ensure UI state remains consistent with async backend pipelines Design scalable component architectures suitable for enterprise usage System‑Aware UI Design Design interfaces that do not lie about system state or capability Respect constraints such as: Evidence hierarchy (code > docs > diagrams) Deterministic classification rules Epistemic uncertainty Surface contradictions and ambiguity explicitly, instead of hiding them behind “happy path” UX Collaboration Collaborate closely with: Backend engineers (Flask / FastAPI) AI/ML engineers Security architects and threat modelers Iterate quickly from wireframes to production while preserving design intent Participate in product architecture discussions—not just visual styling reviews Required Technical Skills Frontend & UI Strong experience with TypeScript Experience with one or more modern frontend frameworks (React, Next.js, Remix, SvelteKit, etc.) Strong CSS and layout fundamentals for complex dashboards Experience building data‑dense, interaction‑heavy UIs Backend Integration Comfortable integrating with Flask and FastAPI backends Experience consuming REST APIs and WebSockets Understanding of async workflows and long‑running backend jobs Visualization & Performance Experience with graph or diagram rendering libraries (e.g., Cytoscape.js, React Flow, D3, Sigma.js, or similar) Understanding of when to use Canvas/WebGL vs DOM Experience handling UI performance constraints at scale (virtualization, progressive loading, aggregation) UX & Design Skills Proven experience designing technical products (developer tools, internal platforms, security tooling, AI systems) Ability to reason about user cognition when presented with uncertainty, conflict, or incomplete data Strong visual hierarchy and information‑architecture skills Comfort designing for expert users, not just casual users Ability to balance clarity with accuracy—no hand‑wavy UX Nice to Have (But Not Required) Experience designing interfaces for: Security tooling Compliance or audit systems AI/ML platforms Familiarity with: Graph theory concepts AI pipelines (RAG, agents, embeddings) IaC or cloud architecture diagrams Background as a frontend engineer who evolved into UX, or a UX designer who codes deeply Benefits Upon completion of waiting period consultants are eligible for: Medical and Prescription Drug Plans Dental Plan Vision Plan Health Savings Account Health Flexible Spending Account Dependent Care Flexible Spending Account Supplemental Life Insurance Short Term and Long Term Disability Insurance Business Travel Insurance 401(k), Plus Match Weekly Pay #J-18808-Ljbffr