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Senior Fullstack Engineer at VC-backed mobility tech startup

hace 2 semanas


Madrid, Madrid, España Jack & JillExternal ATS A tiempo completo

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers.
She will pick the best candidates from Jack's network.

The next step is to speak to Jack.


Senior Fullstack Engineer

Company Description: VC-backed mobility tech startup

Job Description:
Join a fast-paced team building AI-driven tools to solve major inefficiencies in the mobility sector. As a Senior Fullstack Engineer, you will take products from 0 to 1, working closely with users to deliver high-impact features. You will leverage a modern stack to build intuitive, simple experiences for operational users.

Location: Barcelona, Spain

Why this role is remarkable:

  • Impactful 0-1 development: Build and scale AI tools that solve real-world inefficiencies in a massive global industry.

  • Modern productivity stack: Work with high-end tools like Linear, GitHub, and New Relic designed to minimize interference and maximize output.

  • Culture of ownership: Join a well-funded startup backed by top-tier VCs where your personal ideas directly shape the product roadmap.

What you will do:

  • Design and develop end-to-end features using Ruby on Rails, React (NextJS), and PostgreSQL.

  • Translate complex user problems into simple, high-performance solutions with a strong focus on UX.

  • Work independently across the full stack to deploy and maintain scalable infrastructure on AWS and Heroku.

The ideal candidate:

  • Strong full-stack engineering experience with a product-first mindset and high attention to detail.

  • Ability to work independently as a critical thinker who translates user needs into technical solutions.

  • Passion for building 0-1 products and leveraging AI to improve operational workflows for end-users.

Who are Jack & Jill?
Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

Next steps
Step 1. Visit our website.
Step 2. Click 'Talk to Jack'.
Step 3. Talk to Jack so he can understand your experience and ambitions.
Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role.
Step 5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction.
Step 6. If not, Jack will find you excellent alternatives. All for free.

We never post fake jobs
This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.