Sr. Software Engineer (Backend)
- EUR 80,000 to 90,000 per year
- Remote, Portugal
- Senior
- Posted 3 days ago
or apply from Claude / ChatGPT / Muse
Senior backend role on investment and financial products, mostly server side but touching the whole stack, based in Portugal with US colleagues.
About the role
The work covers integrations with financial institutions, moving funds, tracking balances and keeping data secure. Applications run on modern web tech with a strong backend focus.
At a glance
- Pay
- EUR 80,000 to 90,000 per year
- Remote scope
- Remote, Portugal
- Seniority
- Senior
- Skills
- TypeScript, JavaScript, MySQL, React, Agile, Scrum
- Posted
- 26 Oct 2026
- Last checked
- 27 Oct 2026
What you will do
- Give feedback on product requirements and implement features with clean, maintainable code
- Write automated unit tests and run rigorous functional testing
- Troubleshoot production issues and recommend fixes
- Work across UI, API and partner integrations, with most time on backend
What they look for
- Five or more years in software development at a technology company
- Strong TypeScript, JavaScript and Node.js skills
- Fluent written and spoken English, with Agile or Scrum experience
How Keywordise applies for you
Alex Demo
[email protected]
From your CV
Yes, fully remote
- Sent
- 09:41
- Attached
- Your tailored CV
- 1Upload your CVAdd your CV once. It takes about a minute.
- 2Tailored to this jobKeywordise writes a CV and a cover letter for this job from your real experience.
- 3The form fills itselfName, email, experience and screening questions, field by field.
- 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.
Claude
- In Claude, open Settings, then Connectors, and choose Add custom connector.
- Name it Keywordise and paste the connector URL.
- Click Connect, log in to Keywordise and approve. Then send the prompt in a new chat.
https://keywordise.com/mcpDisconnect any time in your Keywordise settings.
ChatGPT
- In ChatGPT, open Settings, then Connectors. On plans that need it, turn on developer mode first.
- Add a new connector with the connector URL and choose OAuth. Leave the client ID and secret empty.
- Log in to Keywordise and approve. Then send the prompt in a new chat.
https://keywordise.com/mcpDisconnect any time in your Keywordise settings.
Muse
- Open Muse (muse.ai or the app) and send it the message below.
- If Muse asks how to sign in, answer OAuth. Open the sign-in link it sends, log in to Keywordise and approve.
- Send the prompt. Muse asks before it sends anything.
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.
Apply to Keywordise job ftlkykmgymQuestions about this job
Is this a remote job, and where can I work from?
The posting lists it as remote for people in Portugal.
What does this job pay?
The posting states EUR 80,000 to 90,000 per year.
What experience is needed?
It is a senior role. The posting asks for: five or more years in software development at a technology company; strong TypeScript, JavaScript and Node.js skills; fluent written and spoken English, with Agile or Scrum experience. Skills it names include TypeScript, JavaScript, MySQL, React.
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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