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Principal Engineer

Acai Travel Inc

Barcelona

Presencial

EUR 50.000 - 90.000

Jornada completa

Hace 3 días
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Descripción de la vacante

Acai Travel Inc is seeking a Principal Engineer to lead backend development for its AI automation platform in Barcelona. This pivotal role combines technical leadership with customer relationship management, offering a chance to work in a high-growth environment focused on personal and professional transformation.

Servicios

Private health insurance
Significant equity
Epic company off-sites
In-person office environment

Formación

  • Experienced backend engineer needed.
  • Comfortable with distributed systems and cloud platforms.
  • Curious about AI and automation.

Responsabilidades

  • Build and evolve scalable backend services.
  • Contribute to system architecture and tech decisions.
  • Collaborate with teammates and customers.

Conocimientos

Go
gRPC
MongoDB
distributed systems
cloud platforms (AWS / GCP / Azure)

Herramientas

Terraform
TypeScript
Next.js
Auth0

Descripción del empleo

Acai Travel is revolutionizing the travel industry by empowering leading Airlines, Online Travel Agencies (OTAs) and Travel Management Companies (TMCs) with cutting-edge AI agentic solutions. We are rebuilding the travel industry with agentic software.

Acai's founders previously sold an AI company to American Express GBT, value for your equity is a guarantee!

Acai Travel ($4.5M raised, VC-backed) needs a Principal Engineer who owns customer relationships while scaling our technical team. As our CTO focuses on strategic growth, you'll lead 8-15 engineers in 2025 and be the central point of contact and value delivery of the company. You will work closely with our two founders (CEO and CPTO).

In just few months, we've grown from 3 clients ($15K MRR) to 10 clients ($80K MRR) at 30% monthly growth. You'll own our most complex customer accounts while mentoring our engineering team.

If that wasn't already amazing, this is best part : our culture is very grounded in cognitive behavioral theories and the principles of Zen and Tibetan Buddhism, fostering an ego-less approach to problem-solving and emotional stillness.

We consider the company as a playground to become better individuals, we do a lot of work on self-awareness and re-programming of our reality into whoever you want to become. You will be transformed into a more empowered, joyful, and inspiring individual. Guaranteed!

About the Role

We’re looking for a Principal Engineer to help design and build the backend systems behind our AI automation platform. You’ll work across the stack, but with a strong backend focus, collaborating closely with peers and staying close to customer problems.

This role sits at the intersection of AI, infrastructure, and product —ideal for someone who wants to build systems that actually run in production and solve messy real-world problems.

At Acai Travel , we’re applying AI to solve real, operational challenges in one of the world’s most complex industries. Our platform is already used by leading travel organizations—from global agencies to business travel platforms.

We’re a small, experienced team with ambitious goals. If you’re excited to build meaningful systems that combine AI, operations, and modern backend engineering—this is a high-impact role with lots of ownership.

What You’ll Do at Acai

Build and evolve scalable backend services in Go (with gRPC and MongoDB)

Work across AI workflows, automation logic, and third-party integrations

Contribute to system architecture and long-term tech decisions

Occasionally dive into TypeScript when needed

Collaborate directly with teammates and customers to shape solutions that work

What We’re Looking For

Experienced backend engineer comfortable with distributed systems and cloud platforms (AWS / GCP / Azure)

Skilled in Go or similar systems languages, and familiar with tools like gRPC, MongoDB, or Terraform

Curious about how AI, automation, and business ops fit together—and eager to learn more

Self-directed, proactive, and excited to work in a collaborative, low-bureaucracy environment

Our Stack

AI-driven products built on top of LLMs and orchestration layers

Go , gRPC , MongoDB , Terraform , Auth0

TypeScript , Next.js

Why Join

Proven founders - Team previously sold AI company to American Express GBT, equity value guaranteed

Hypergrowth rocket ship - 30% monthly growth

Rare dual-impact role - Drive both technical excellence and customer relationships that fuel growth

Personal transformation - Zen / Buddhist-grounded culture focused on self-awareness and empowerment

Significant equity - Meaningful ownership in category-defining AI travel startup

Epic perks - Barcelona base, world-class off-sites, strategic customer travel

Barcelona, Spain - In-person in the office. Travel required for strategic customers all over the world.

Competitive salary + significant equity, private health insurance, office perks, epic company off-sites (Mallorca, Italian Alps, Bangkok, Spanish Pyrenees).

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