AffirmHiring

Senior Software Engineer, Backend (AI Platform)

  • Remote, United States
  • Senior
  • Posted 3 days ago
Apply with Keywordise AI

or apply from Claude / ChatGPT / Muse

In one line

Senior backend engineer for an AI platform team, owning gateways, agent runtime and evals that other engineering teams rely on in production.

About the role

Ownership covers the LLM gateway, the MCP gateway, the agent runtime and the evals and observability layer. The team is early, with the gateway in daily use and the first production agent live.

At a glance

Pay
Not stated in the posting
Remote scope
Remote, United States
Seniority
Senior
Skills
Python, Kotlin, AWS, MySQL, Kubernetes, LLMs, MCP
Posted
26 Oct 2026
Last checked
27 Oct 2026

What you will do

  • Plan and own technical projects within the AI platform, from design through launch and on-call
  • Build and scale gateway, runtime and evaluation services across millions of users
  • Create identity, quota, routing, caching and failover controls for AI spend

What they look for

  • 4+ years of backend development at scale in Python or Kotlin
  • Experience with highly available distributed systems on AWS, MySQL and Kubernetes
  • Production experience with LLMs, agents, inference APIs, MCP, tool calling or evals
  • Ability to define a technical plan for a significant delivery

Nice to have

  • Experience setting code review and design standards across teams
  • Mentoring engineers and writing about engineering practice

How Keywordise applies for you

  1. 1Upload your CVAdd your CV once. It takes about a minute.
  2. 2Tailored to this jobKeywordise writes a CV and a cover letter for this job from your real experience.
  3. 3The form fills itselfName, email, experience and screening questions, field by field.
  4. 4Application sentYou get a receipt and follow it in your dashboard.

Apply with Keywordise AI7-day free trial, no card.

Apply from your AI assistant

Connect Keywordise to your assistant once, then send it the prompt. It applies for you.

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

Disconnect any time in your Keywordise settings.

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

Disconnect any time in your Keywordise settings.

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
Apply to Keywordise job dhkyxgeppc
How to connect

Questions about this job

Is this job fully remote, and from where?

Yes. The posting lists Senior Software Engineer, Backend (AI Platform) as a remote role for candidates in the United States.

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 senior role. The posting asks for: 4+ years of backend development at scale in Python or Kotlin; experience with highly available distributed systems on AWS, MySQL and Kubernetes; production experience with LLMs, agents, inference APIs, MCP, tool calling or evals. Skills it names include Python, Kotlin, AWS, MySQL.

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.

More remote IT and software jobs

All remote IT and software jobs
AffirmRemote, United States
Apply with Keywordise AI