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Senior Software Engineer (Comms Core)

  • Remote, Spain
  • Senior
  • Posted 10 days ago
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In one line

Senior backend engineer for a messaging platform that delivers customer messages at scale, with vendor integrations and an on-call rotation.

About the role

Ownership covers quarterly technical goals for the communications area, from service design through operations. The team handles orchestration, delivery, preferences and templates.

At a glance

Pay
Not stated in the posting
Remote scope
Remote, Spain
Seniority
Senior
Skills
Python, Kotlin, AWS, MySQL, DynamoDB, Kubernetes
Posted
19 Oct 2026
Last checked
27 Oct 2026

What you will do

  • Own quarterly technical goals for the communications area and work through ambiguous problems with the team.
  • Improve service-level objectives, alerting and incident response, and take part in on-call.

What they look for

  • At least five years in software development or engineering with deep system design knowledge.
  • Modern programming skills, for example Python or Kotlin.
  • Hands-on experience with AWS, MySQL, DynamoDB and Kubernetes in highly available systems.

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.

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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 zxuvv5g6ve
How to connect

Questions about this job

Can I do this job remotely, and from which countries?

Yes. The posting lists Senior Software Engineer (Comms Core) as a remote role for candidates in Spain.

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: at least five years in software development or engineering with deep system design knowledge; modern programming skills, for example Python or Kotlin; hands-on experience with AWS, MySQL, DynamoDB and Kubernetes in highly available systems. Skills it names include Python, Kotlin, AWS, MySQL.

How do I apply with Keywordise AI?

Select Apply with Keywordise AI, sign up and upload your CV. Keywordise writes a CV and a cover letter for this job from your real experience and applies for you. The 7-day free trial needs no card.

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