Skip to content

Nobody tells you why you were rejected. We will. Free, in 30 seconds.

Score my CV against live jobs

Senior back-end Engineer

Lemon.io · Europe, Norway

RemoteSeniorPosted 30 Sept 2026

What this role requires

3 requirements, read out of the advert rather than guessed from the job title:

Also mentioned, not required: AI agent development, English (B2). Worth having, but their absence is not what gets a CV filtered out.

See how often each of these is required across open backend roles in Europe.

Check my CV against these 3 requirements

Free, no card. Tells you which of them your CV evidences and which it only implies.

Job description

Senior Developer? Work Remote. Get Paid Well. Build What Matters.

Lemon.io connects hand-picked senior developers with vetted startups across the US and Europe — no bidding wars, no ghosting, just serious opportunities.

We're currently hiring for a research-driven AI company on a mission to slash the cost of modern AI — co-designing hardware, software, algorithms, and models to make AI's benefits accessible to everyone. They're active open-source contributors, building the infrastructure behind next-generation AI at scale.

Open roles: Senior Back-end Engineer (Golang), Senior DevOps Engineer, Senior Site Reliability Engineer, Senior Storage Engineer, Senior Python & LLM Developer, Senior Back-end Engineer (Python)

Why this one's worth a look:

You'll be working on infrastructure that directly shapes how AI gets built and deployed, at a company operating at the frontier of the field.

Read the full description (9 more sections)

Locations: EU, US, Canada, UK, Australia, Singapore, Ireland, Norway, Switzerland, Iceland, and Mexico.

Requirements for Senior Back-end Developers:

5+ years of software development experience

3+ years of experience with Golang and/or Python

2+ years of experience with Kubernetes

2+ years of experience with AI agent development

Not your stack?

We're placing Senior Developers (4+ yrs commercial experience) across AI Agent Architecture, AI Automation Architecture, AI Engineering, Site Reliability Engineering, Platform Engineering, React & Python, React & Golang, Golang, React & Java, React & Ruby, Ruby, PHP & Vue, Vue & Node.js, React & .NET, Android & iOS, iOS & Swift, Flutter & Firebase, Solutions Engineer, Blockchain (Ethereum/Ethers.js/Wagmi/Viem/Solana), Angular & Node.js, Vue & .NET, Python & Vue, DevOps, MLOps, Data Science, Angular & PHP, Angular & .NET, Symfony & React, Symfony & Vue, Symfony & Angular, Python, Symfony & JavaScript & Next.js & TypeScript, Data Analysis, React & PHP, Data Engineering, Project Management, Product Management, QA Automation, QA Manual, Embedded Software Engineering, React Native & Node, React Native & React, React Native & Ruby, React Native & Python, WordPress, Android, Data Annotation, Angular, Python & Node, React & Node.js, Java & Spring, Svelte & Python, Svelte & Node.js, Svelte & TypeScript, Rust, Shopify & JavaScript, Vue & Nuxt, PHP & Laravel, UI/UX Design, Animation, Graphic Design, React & Node & React Native, .NET & C#, Electron, Scala, C++, Unreal Engine & C++, Python & LLM, Unity, or Machine Learning Engineering and more. Reach out and we'll match you.

We work with developers across 75+ countries in Europe, Latin America, North America, select Asian markets (Japan, Singapore, South Korea, Philippines, Indonesia, Malaysia, Vietnam, Thailand, Israel), Oceania (Australia, New Zealand, Papua New Guinea), and Africa (including Morocco, South Africa).

You will apply. Then you will hear nothing.

And no one will tell you what was wrong. See it before you send: your ATS score, every weak line, and the fix for each.

  1. 1

    Drop in your CV

    One PDF, thirty seconds. No card.

  2. 2

    See what is wrong with it

    Every weak passage, quoted from your own CV, with the line to replace it.

  3. 3

    Apply where you fit

    Every European role ranked against what your CV actually says.

  • Free, no card
  • Your CV file is deleted after parsing
  • Or skip the upload — build your profile by hand
  • Refreshed every 6 hours