Senior AI Engineer / Architect
Free to start · No card · 5 credits the moment you sign up
Job description
Lemon.io helps companies in the US and Europe hire experienced engineers, from funded startups to teams like Klarna, Retool, and Pinterest. We’ve been doing this since 2015, and more than 1,500 companies have hired engineers through us.
New roles for senior AI engineers come in all the time, and several are open right now.
Two ways to work with clients
- Contract: most roles are contract-based. You join the client’s team and work as part of it.
- Direct hire: some clients hire engineers full-time, and we support you through the process.
Because companies trust our vetting, applying through Lemon.io is often a shortcut. You get to the client faster than going through their full hiring process on your own.
What you get
- Competitive rate, based on your seniority and skills
- We find the projects. No client hunting or rate negotiations. We match you manually based on your skills and preferences.
- Flexible schedule. Work async or with a small overlap with the team’s hours.
- No micromanagement, no screen trackers
- Direct work with clients, most of them with technical backgrounds
- Ongoing support from your application through every project, plus a community of engineers from [75+] countries
Who we’re looking for
AI Engineer:
- 3+ years of commercial experience applying AI to practical technology solutions
- A solid understanding of Python is a must; experience with other programming languages commonly used in AI is a plus
- Experience with Vector Databases, Pinecone or Weaviate is required
- 2+ years of experience with LangChain is mandatory
- 2+ years of experience with large language models (LLMs) or vLLMs is mandatory
- 2+ years of experience with RAG or OpenAI is required
AI Agent Architect:
- 3+ years of experience with Python
- 3+ years of experience with LLM
- Experience with Multi-agent systems architecture, AI agent orchestration, AI telemetry is a must.
AI Automation Architect:
- 1+ year of experience with Workflow Automation and Webhooks
- 3+ years with SQL is a must
- Familiarity with AI API integration and Claude Cowork is a must
- Knowledge of Make.com/n8n/Zapier
- You own problems end-to-end: you spot the issue, design and build the solution, and ship it to production
- You can show the business impact of your work with concrete results (e.g., faster processing, lower costs, more users, fewer incidents)
- Advanced English: you discuss business tasks, explain your decisions, raise issues early, and present yourself and your results well on client calls
- You work full-time remotely and deliver without supervision
- You onboard quickly and start shipping in your first weeks
How it works
- Apply and complete your profile
- Verify your role
- Once approved, we match you with a project. Typical time to first project: 3 weeks
Ready? Apply and join the Lemon.io community.
NOT YOUR TECH STACK?
We're placing Senior Developers (4+ yrs commercial experience) across Site Reliability Engineering, Platform Engineering, Enterprise Software 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 & An gular, 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, Angular, Python & Node, React & Node.js, Node & TypeScript, 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 do not provide visa assistance, and our cooperation model does not include the benefits typically offered with direct hire.
We work with developers from 75+ countries across Europe, Latin America, North America (the U.S. and Canada), selected countries in Asia (Japan, Singapore, South Korea, the Philippines, Indonesia, Malaysia, Vietnam, Thailand, and Israel), Oceania (Australia, New Zealand, and Papua New Guinea), and Africa (including Morocco and South Africa).
Prepare your application
Use the description above to assess your fit for Lemon.io. This checklist is guidance from Resumize, rather than additional requirements from the employer. Imported listings can be shortened or change after collection, so confirm the complete description and current availability before sending an application.
Match requirements to evidence
Identify the responsibilities and skills the employer explicitly names. For each important requirement, choose one example from your work, education, training, or projects. Explain what you did, how you did it, and what changed as a result. Include a measurable outcome when you can support it. If you lack a requirement, describe related experience accurately instead of adding an unfamiliar skill to your resume.
Put the most relevant examples near the top of your resume. Keep job titles, dates, qualifications, and contact details consistent across your application materials. Use the employer’s terminology when it describes your experience accurately; a copied list of keywords does not explain your contribution. A short, specific bullet is easier to review than a paragraph that mixes several unrelated duties.
Check the working arrangement
Confirm the location, schedule, employment type, and any eligibility requirements on the employer’s site. A remote label does not establish worldwide eligibility or flexible hours. If compensation, benefits, equipment, travel, or contract duration are missing from this listing, write down your questions for the recruiter. Do not assume details from another opening at the same company apply to this role.
Review before submitting
Follow the employer’s requested file format and application instructions. Open your exported resume and check that its text is selectable, its sections read in order, and its links work. Proofread names, dates, and contact information. Share confidential work samples only when you have permission, and use an anonymized example when necessary.
Submit through a trusted employer or recruiting destination. If the original listing has disappeared, search the employer’s careers page for the title rather than assuming the vacancy remains open. Save the application date, job reference, and the version of your resume you sent. Those details help you prepare for a later conversation and avoid submitting conflicting information through several job boards.
Review your resume for writing and readability feedback, or browse other openings if this opportunity is unavailable.