Full-Stack Lead Engineer

Careergenie
Barcelona, Spain
26 days ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Experience required
5 years minimum
Compensation
€45,000.0 - €60,000.0
Working hours
Regular working hours
Job source

Tech stack

Application Programming Interfaces (APIs) Artificial Intelligence Microsoft Azure Cursor (Graphical User Interface Elements) Node.Js GitHub Copilot ReactJS Delivery Pipeline Zapier Backend Nintex React Native
+3 more
Virtual Agents Restful APIs GPT

Job description

We’re hiring a Full-Stack Lead Engineer to take ownership of our engineering architecture, guide best practices, and ship core product features across web, mobile, and backend. You’ll work directly with the founding team (Product, Design, and CTO), and play a key role in bringing to life our AI agent workflows, automation systems, and real-time career insights. This is a hands-on leadership role with the opportunity to grow into Head of Engineering as the team scales. What Youll Do

  • Lead full-stack development: Contribute across our platform, React (web), Node.js (backend), React Native (mobile).
  • Collaborate across teams: Work closely with Product and Design to scope, plan, and deliver features.
  • Build AI-powered workflows: Support features built around AI agents, voice interactions, and n8n automations.
  • Mentor and guide engineers: Establish code quality standards, review PRs, and help grow the team.
  • Own infrastructure: Manage performance, scalability, and reliability of our services, hosted on Azure.
  • Iterate fast: Embrace a builder mindset prototype quickly, ship, learn, improve.

Requirements

  • 5+ years of full-stack engineering experience (React, Node.js, REST APIs)
  • Experience leading projects or small engineering teams
  • Comfort working with React Native or mobile-first development
  • Familiarity with Azure cloud services and deployment workflows
  • Exposure to AI-driven product features (e.g., GPT APIs, voice agents, intelligent UIs)
  • Based in Portugal or Spain with fluent English communication skills Nice-to-Haves

  • Experience using AI-enhanced developer tools like GitHub Copilot, Cursor, Clide, or similar IDEs
  • Experience with n8n, Zapier, or similar no-code/low-code tools
  • Interest in building for edtech, jobtech, or social-impact platforms
  • Familiarity with UX collaboration and fast-paced product iteration
  • Passion for the future of work and AI-assisted career tools

Benefits & conditions

  • Equity upside: Competitive salary + real ownership as we scale
  • Backed by Techstars with access to an international network of mentors and advisors Inscribirse en esta oferta Recibir ofertas similares por correo electrónico Al crear una alerta, aceptas nuestros Términos y condiciones y Política de privacidad, y el uso de cookies.

About the company

CareerGenie is reimagining how people find meaningful work with a platform powered by multiple agents like AI Recruiter, AI Career Coach and AI Global Mobility Expert amongst many others that collaborate with each other seamlessly to connect talent with opportunity. Backed by Techstars, were building at the edge of AI, automation, and impact. We’re now scaling our engineering team to power the next phase of our web and mobile experience, helping users get career clarity, verified skills, and job access, faster than ever before.

Apply for this position

This job is hosted externally. Click below to view the full posting and apply.

Apply on www.adzuna.es

Good distractions

Talks and stories from around this role — technically off-topic, practically not.

1:20 min

Identifying multi-disciplinary talent for developer experience engineering roles

Hazal Mestci +1 · Coffee With Developers

1:20 min

Drawing inspiration from Zapier for programmatic SEO

Dino Lozina · WWC 2022

40 sec

Generative pre-trained transformer models powering code completions

lgonta lgonta +1 · WWC 2024

3:03 min

Expanding skills naturally toward full stack software development

Eleanor Rumsey · LIVE

5:36 min

Connecting workflows with spreadsheets and API integrations

José Kadlec José Kadlec · WWC 2025

51 sec

Assessing GPT-4o performance for pull request feedback

Merrill Lutsky Merrill Lutsky · WWC 2025

Videos

See all

Related articles

See all