A national security software and data engineering companyHiring

Senior Principal UX Engineer

  • Remote, worldwide
  • Lead
  • Posted 9 days ago
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or apply from Claude / ChatGPT / Muse

In one line

Own user research and interface design inside a small product team building tools for defense and intelligence users.

About the role

User research sits at the center: interviews, observation and usability testing each iteration, with findings turned into designs shipped alongside engineers. The role is the dedicated UX owner for a lean product group.

At a glance

Pay
Not stated in the posting
Remote scope
Remote, worldwide
Seniority
Lead
Skills
User research, Usability testing, Information architecture, Interaction design, Extreme Programming
Posted
20 Oct 2026
Last checked
29 Oct 2026

What you will do

  • Run interviews, field observation and usability tests every iteration, not just once.
  • Turn findings into personas, journey maps and opportunity areas that guide priorities.
  • Track task success, time on task and SUS scores, and feed results into the backlog.

What they look for

  • Experience owning end-to-end UX for product areas, from flows and information architecture to interaction and visual UI.
  • Comfort designing for operators and analysts who decide under time pressure with dense data.
  • Ability to work as a full member of an Extreme Programming team, pairing with engineers daily.
  • Skill at using AI tools for synthesis, research plans and prototypes while keeping human judgment central.

A typical week

  • Join planning, stand-ups and retrospectives with the product team.
  • Interview users and run usability sessions.
  • Pair with engineers on implementation details.

How Keywordise applies for you

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ClaudeConnectorChatGPTConnectorMuseby Meta

Claude

  1. In Claude, open Settings, then Connectors, and choose Add custom connector.
  2. Name it Keywordise and paste the connector URL.
  3. Click Connect, log in to Keywordise and approve. Then send the prompt in a new chat.
Connector URL
https://keywordise.com/mcp

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ChatGPT

  1. In ChatGPT, open Settings, then Connectors. On plans that need it, turn on developer mode first.
  2. Add a new connector with the connector URL and choose OAuth. Leave the client ID and secret empty.
  3. Log in to Keywordise and approve. Then send the prompt in a new chat.
Connector URL
https://keywordise.com/mcp

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Muse

  1. Open Muse (muse.ai or the app) and send it the message below.
  2. If Muse asks how to sign in, answer OAuth. Open the sign-in link it sends, log in to Keywordise and approve.
  3. Send the prompt. Muse asks before it sends anything.
Message for Muse
Add a custom connector called Keywordise. It is a remote MCP server at https://keywordise.com/mcp and uses OAuth. Give me the sign-in link.

Muse is available in the US only for now.

Prompt
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How to connect

Questions about this job

Is this a remote job, and where can I work from?

Yes. The posting lists Senior Principal UX Engineer as a remote role open to candidates worldwide.

What does this job pay?

The posting does not state a salary, so there is no figure to quote.

What experience is needed?

It is a lead role. The posting asks for: experience owning end-to-end UX for product areas, from flows and information architecture to interaction and visual UI; comfort designing for operators and analysts who decide under time pressure with dense data; ability to work as a full member of an Extreme Programming team, pairing with engineers daily. Skills it names include User research, Usability testing, Information architecture, Interaction design.

How do I apply with Keywordise AI?

Click Apply with Keywordise AI, create an account and upload your CV. Your CV and cover letter are written for this job from what you have really done, then Keywordise applies for you. Trial: 7 days, no card.

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A national security software and data engineering companyRemote, worldwide
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