HumanITHiring

Senior Fullstack Engineer

  • EUR 2,600 to 3,500 per month
  • Remote, Portugal
  • Senior
  • Posted 8 days ago
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In one line

Senior fullstack role on a cloud modernisation programme for a UK retail and payments business, working mainly in Node.js, TypeScript and AWS. Fully remote, UK business hours.

About the role

Remote, with the team working UK business hours and plenty of room to own delivery. The work sits across payments, fraud, credit and financial infrastructure, and AI coding agents are part of the daily toolset.

At a glance

Pay
EUR 2,600 to 3,500 per month
Remote scope
Remote, Portugal
Seniority
Senior
Skills
Node.js, TypeScript, JavaScript, AWS, REST APIs, CI/CD, Git, Claude Code
Posted
21 Oct 2026
Last checked
28 Oct 2026

What you will do

  • Design and maintain secure backend services and REST APIs, then take them through to production
  • Deploy, monitor and scale applications on AWS, and modernise existing services
  • Review AI-generated code for security and performance, and build tests, CI/CD and observability

What they look for

  • Hands-on senior experience building production backends in Node.js, with strong JavaScript and/or TypeScript
  • Practical AWS deployment and maintenance work, plus API design, data modelling, testing, CI/CD and Git
  • Daily use of Claude Code, Cursor, Copilot or similar across planning, coding, debugging and delivery
  • Fluent English and availability during UK business hours

Nice to have

  • Background in fintech, payments, fraud, credit or another regulated setting

Benefits

  • Health insurance for your family, a 15th month salary, your birthday off and a mobility programme

How Keywordise applies for you

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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
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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.
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Connector URL
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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 Fullstack Engineer as a remote role for candidates in Portugal.

What does this job pay?

The posting states EUR 2,600 to 3,500 per month.

What experience is needed?

It is a senior role. The posting asks for: hands-on senior experience building production backends in Node.js, with strong JavaScript and/or TypeScript; practical AWS deployment and maintenance work, plus API design, data modelling, testing, CI/CD and Git; daily use of Claude Code, Cursor, Copilot or similar across planning, coding, debugging and delivery. Skills it names include Node.js, TypeScript, JavaScript, AWS.

How do I apply with Keywordise AI?

Press the Apply with Keywordise AI button and add your CV. Keywordise tailors your CV and cover letter to this posting and sends the application for you, with a free 7-day trial and no card.

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