The English-language job board for Spain

Lead Flutter Developer

Hybrid in Barcelona, Barcelona +1·Full-time·Added 5 months ago (last checked 1 Oct)

Labhouse

20 open roles

Overview

Work mode
Hybrid, Barcelona, Barcelona, Spain / Spain /
Contract
Permanent contract, full-time hours
English
Required
Experience
Senior level
Education
University degree

Visa options

  • The ad doesn’t mention sponsorship

    Not a refusal, but not a yes. Worth asking in your first message.

Find jobs with visa support

Skills

Nice to have

Requirements

Nice to have

  • Experience in integrating AI models into mobile applications.

  • Knowledge of backend technologies (e.g., Typescript, Python, Node.js, Java).

  • Experience launching personal or side projects, especially apps.

  • Native iOS development experience is highly valued.

Pay & benefits

What you'll get

  • Remote work from anywhere in Spain. If you are based in Barcelona, we would love for you to join us at the office (Barcelona Tech City) at least two days a week.

  • Flexible working hours.

  • Competitive compensation

  • High-end equipment for your development.

  • Permanent contract with competitive compensation.

  • A young and top entrepreneurial team in a dynamic startup environment.

  • Opportunity to lead, grow, and take on big challenges.

  • Work with cutting-edge technologies, including the chance to integrate AI models into new apps.

The role

Labhouse is a Barcelona-based startup studio building AI-powered mobile apps used by hundreds of thousands of people worldwide. Our products - including Invoice Fly and Summary AI - are designed to make everyday tasks faster, smarter, and simpler through a subscription model that puts the user first.

We were founded by Andrés Bou and Horacio Martos, the duo behind SocialPoint (acquired by Take-Two Interactive), and we operate with the mindset of a product company: small teams, high ownership, and a relentless focus on building things that matter.

Would you like to make an impact as part of a company that builds the best mobile apps used by millions of users worldwide? If so, discover your next challenge below.

We are looking for an experienced and driven Lead Mobile Developer who will play a pivotal role in our development team. As a lead, you will take ownership of the end-to-end product lifecycle, from architecture design to deployment. You will define technical guidelines, mentor junior developers, and ensure that our apps are built on scalable, efficient, and innovative architectures.

In this role, you will also have the exciting opportunity to integrate AI models into our new apps through APIs, pushing the boundaries of what our products can achieve.

Requirements

  • Degree in Computer Science, Telecommunications Engineering, or a related technical field.

  • Strong knowledge of Flutter and Dart, with proven experience in building and maintaining mobile apps.

  • Solid understanding of infrastructure with AWS and/or GCP, including architecture design, deployment, and scalability.

  • Experience working with and managing diverse architectures, with the ability to evaluate and implement the most suitable approach for each product.

  • Knowledge of Firebase services (Firestore, Authentication, Storage, Functions) and familiarity with API integrations.

  • Ability to define and implement coding standards, best practices, and scalable architectures.

  • High agility and ability to implement changes in the app very quickly, adapting to product needs with speed and precision.

  • Proven experience leading or mentoring development teams.

  • Ability to guide and upskill junior developers, fostering their growth and performance.

  • Strong organizational and project management skills to ensure deadlines are met without compromising quality.

  • Excellent problem-solving and analytical skills, with the ability to resolve complex technical challenges.

  • Eye for detail and a product-first mindset, with a passion for creating exceptional user experiences.

  • Self-driven, entrepreneurial attitude with the ability to work autonomously and take ownership of projects.

  • Good level of spoken and written English.

  • Ability to collaborate effectively with cross-functional teams, including design, product, and marketing.

The Process

  1. Initial Interview: Meet with our Talent Acquisition Lead to discuss your background and fit for the role. We'll also ask you to share your proudest projects - not the code, but the visual side of the apps: links, screenshots, or demo videos that show what you've built.

  2. Hiring Manager Interview: A deep dive into your experience and leadership capabilities.

  3. Technical Assessment: Showcase your expertise through a practical task.

  4. Final Interview: A conversation with our leadership team to align on vision and expectations.

  5. Offer: Join our team and lead the development of our future-shaping apps!

You should Know

Labhouse is proud to be an equal-opportunity employer. However you identify or whatever your journey to this point, we welcome all candidates to apply for the position that inspires them.

Come join us and help us build a company that everyone is proud to be part of.

About Labhouse

Labhouse is an AI-powered mobile app studio based in Barcelona, Spain. The company designs and develops consumer-facing AI applications, with a strong focus on product design, user experience, and growth marketing. They operate with a lean, senior team and leverage modern tooling to ship products quickly.

Labhouse has its headquarters and main office in Barcelona, making it a Spanish-founded company. The team is international and English-speaking, with a strong emphasis on design and engineering excellence. For international professionals, Labhouse offers a dynamic startup environment in one of Europe's most vibrant tech hubs, with opportunities to work on cutting-edge AI products and a culture that values autonomy and impact.

Industry
AI Apps
Founded
2021
Employees
11–50
Headquarters
Barcelona, Spain
In Spain
Barcelona

Good to know if you are moving

  • The company is headquartered in Barcelona, Spain, making it a direct destination for those looking to relocate to a vibrant European tech hub.
  • The working language is English, and the team is international, making it accessible for non-Spanish speakers.
  • The company operates in a fast-paced startup environment, offering significant ownership and impact on product decisions.
  • The company focuses on AI applications, a high-growth sector with strong demand for skilled engineers and product professionals.
All open roles at Labhouse
WhatsApp
Hybrid in BarcelonaNo Spanish needed

UI/UX Director

Labhouse1w ago
Hybrid in BarcelonaNo Spanish needed

Head of Product

Labhouse1w ago
Hybrid in BarcelonaNo Spanish needed

Head of Customer Support

Labhouse1w ago
Hybrid in BarcelonaNo Spanish needed

Growth Marketing Manager

Labhouse4w ago
Remote, Spain (Remote)No Spanish needed
Remote from SpainNo Spanish needed
Hybrid in Barcelona, Barcelona +1No Spanish needed

Marketing Video Editor

Labhouse1mo ago
Hybrid in Barcelona, Barcelona +1Fluent Spanish
Remote, Spain (Remote)No Spanish needed

SEM Lead

Labhouse3mo ago
Remote, Spain (Remote)No Spanish needed

VP of Growth

Labhouse4mo ago
Hybrid in Barcelona, Barcelona +1No Spanish needed
See all 20 jobs