Full-Time

Staff UX Designer

Posted on 9/17/2025

Fiddler AI

Fiddler AI

51-200 employees

Responsible AI platform for model monitoring

Compensation Overview

$195k - $235k/yr

+ Equity

Palo Alto, CA, USA

Hybrid

Hybrid role requiring at least 2 days on-site per week at Palo Alto office; potential for a 3rd day in the future.

Category
UI/UX & Design (1)
Required Skills
Interaction Design
UI/UX Design
Figma
Requirements
  • Bachelor's degree in Design, Human-Computer Interaction, Computer Science, a related field, or equivalent practical experience.
  • 6 years of experience in UI/UX design working closely with front-end engineers.
  • 2 years using Figma with contributions to a design system featuring reusable components and clickable prototypes
  • Demonstrated ability to evolve design elements to meet new product requirements, highly responsive to iterative product development cycle.
  • Include a portfolio, website, or any other relevant link to your work in your resume (a viewable link and/or access instructions).
Responsibilities
  • Contribute to a wide variety of designs in Figma- including interactive wireframes, pixel-perfect UI specifications, and graceful user-flows
  • Collaborate daily with peers across disciplines including engineering, product, and data science.
  • Interpret complex ideas and transform them into delightful and intuitive interfaces.
  • Maintain a design library of reusable components in collaboration with front-end engineers.
  • Give and solicit actionable feedback in service of building the best products.
Desired Qualifications
  • 2+ years of experience as a UX thought leader working on enterprise products.
  • Experience working in a complex, cross-functional organization, leading design projects, and working with executive leaders in a large enterprise.
  • Experience working in a startup environment.

Fiddler AI provides a Responsible AI Platform for enterprises to build and maintain trustworthy AI. It offers a SaaS suite that helps data science and MLOps teams monitor, explain, validate, and analyze machine learning models in production. The platform works by aggregating model telemetry and applying governance, bias detection, explanations, and performance analytics to ensure models stay reliable and fair at scale. What sets Fiddler AI apart is its strong focus on AI observability, governance, and explainability across production models, helping organizations meet regulatory requirements and reduce risk. The company’s goal is to help customers deploy AI that is transparent, compliant, and trustworthy, improving performance and customer trust while managing risk.

Company Size

51-200

Company Stage

Series C

Total Funding

$93.8M

Headquarters

Palo Alto, California

Founded

2018

Simplify Jobs

Simplify's Take

What believers are saying

  • AI agent governance market expanding as enterprises deploy autonomous systems requiring real-time control.
  • Lumeus AI acquisition adds data security layer, enabling unified compliance auditing across ML teams.
  • Regulated industries (healthcare, financial services, insurance) face mounting governance demands Fiddler addresses.

What critics are saying

  • Hyperscalers embedding native AI observability into AWS, Google Cloud, Azure eliminates standalone tool need.
  • Open-source alternatives and LLM provider bundled safety controls erode pricing power and market share.
  • Fortune 500 customer concentration means loss of 2-3 accounts reduces ARR by 15-25% immediately.

What makes Fiddler AI unique

  • Unified control plane integrates model monitoring, data security, and agentic governance in single platform.
  • Proprietary Fiddler Trust Models deliver guardrails without external API calls or hidden fees.
  • 4x revenue growth in 18 months and AWS Pattern Partners status validate enterprise traction.

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Benefits

Hybrid Work Options

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

0%

2 year growth

0%
GetAIGovernance
Apr 10th, 2026
Fiddler AI acquires Lumeus AI to unify model monitoring and data security

Fiddler AI has acquired Lumeus AI, a cloud security startup specialising in data governance and zero-trust visibility, marking a shift towards unified AI observability and data security. The acquisition bridges the traditional gap between model performance monitoring and data privacy controls. Lumeus brings context-aware security that understands data sensitivity moving through AI pipelines. The combined platform will monitor both model health and data access simultaneously, enabling active governance features like automatic PII redaction and real-time access blocking. The move addresses growing enterprise pressures including shadow AI proliferation, regulatory demands, RAG complexity and data leakage incidents. By creating a unified control plane, Fiddler aims to automate compliance auditing and eliminate the friction between ML teams and security departments that has slowed AI deployment.

Business Wire
Feb 3rd, 2026
Fiddler Raises $30M Series C to Power the Control Plane for AI Agents

Fiddler AI, the enterprise AI observability and security platform, today announced it has raised $30 million in Series C funding led by RPS Ventures, with pa...

Fiddler AI
Feb 3rd, 2026
Announcing Series B and General Availability of Enterprise-Ready Fiddler | Fiddler AI Blog

Today, we’re excited to announce that enterprise-ready Fiddler is generally available, and we’ve raised $32 Million in Series B funding!

FinSMEs
Jan 27th, 2026
Fiddler AI Raises $30M in Series C Funding

Fiddler AI raises $30M in Series C funding. Fiddler AI, a Palo Alto, California-based provider of an enterprise AI observability and security platform, raised $30m in Series C funding. The round was led by RPS Ventures, with participation from existing investors Lightspeed Venture Partners, Lux Capital, Insight Partners, Capgemini Ventures, Dallas VC, Dentsu Ventures, and Mozilla Ventures, and new investors LG Technology Ventures, Benhamou Global Ventures, and LDV Partners. The company, which has secured $100m in total funding to date, intends to use the funds to expand operations and to scale its platform across regulated industries like healthcare, financial services, and insurance. Led by Co-founder and CEO Krishna Gade, Fiddler AI develops an all-in-one AI Control Plane that provides visibility, context, and control for AI agents, GenAI, and ML applications through proprietary trust models, evaluations, monitoring, and analytics capabilities. Its control plane for compound AI systems enables businesses to diagnose, explain, and govern their agentic decisions in real time. The company has grown its revenue more than 4x in the last 18 months, and achieved AWS Pattern Partners status. It serves Fortune 500 organizations.

Dallas Innovates
Dec 16th, 2024
Dallas Venture Capital Invests in Palo Alto-Based Fiddler AI's $50M Series B Round

Palo Alto, California-based Fiddler AI said its $18.6 million Series B extension brings the round's total funding to $50 million. The company said the funds will help it "continue to build momentum in AI observability and AI safety."

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