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

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