Senior Software Engineer

Acai Travel; Barcelona; Presencial; EUR 50.000 - 80.000; Jornada completa

Descripción de la vacante

Acai Travel seeks a Senior Product Engineer to build innovative backend systems for their AI-driven travel platform. Joining a fast-growing tech team rooted in a Zen culture, you’ll influence product decisions and collaborate with clients. This role promises significant personal and professional growth within a category-defining startup.

Servicios

Private health insurance

Competitive salary

Equity in the company

Epic off-sites

Office perks

Formación

• Experience in backend engineering and distributed systems.
• Familiarity with Go, gRPC, MongoDB, and Terraform.
• Interest in AI and its application in business.

Responsabilidades

• Design and implement scalable Go services that impact products.
• Drive end-to-end features based on customer needs.
• Collaborate with product teams to enhance user experience.

Conocimientos

Backend engineering experience

Distributed systems

Cloud platforms

Go programming

gRPC

MongoDB

Terraform

Curiosity about AI

Descripción del empleo

Location: Barcelona (WeWork Glories)
Team: Engineering
Type: Full-time

About Acai Travel

Acai Travel is revolutionizing the travel industry with cutting-edge AI agentic solutions for leading Airlines, OTAs, and TMCs. We're rebuilding travel with agentic software.

Our founders previously sold an AI company to American Express GBT—value for your equity is guaranteed! We've grown from 3 clients ($15K MRR) to 10 clients ($80K MRR) at 30% monthly growth.

Our culture is grounded in Zen and Tibetan Buddhism principles, fostering ego-less problem-solving and emotional stillness. We consider the company a playground to become better individuals—you will be transformed into a more empowered, joyful person.

About the Role

We're looking for an exceptional Senior Product Engineer who lives at the intersection of engineering excellence and product obsession. You'll build backend systems behind our AI automation platform while being deeply involved in product decisions, customer conversations, and the "why" behind every feature.

This isn't just about writing code—you'll challenge product assumptions, work directly with customers, and drive features from conception to measurable business results.

What Makes You Exceptional

️ Extreme Ownership: You challenge specs, suggest alternatives, and drive ideas to completion even when others need convincing.

Product Obsession: You ask "why?" relentlessly and dive into user behavior, business metrics, and customer feedback to understand real problems.

Optimistic Collaboration: You make everyone more excited about building and help ideas get off the ground rather than die in committees.

Authentic Communication: You build great relationships with non-engineers and learn how other disciplines work.

️ Craft Excellence: Joy comes from the craft itself. You love building products and continuously validate that your work creates real user value.

What You'll Do

Build Product-Driven Systems

• Design scalable Go services (gRPC, MongoDB) with product impact in mind

• Work across AI workflows, automation logic, and integrations

• Make architecture decisions based on customer needs

Own Features End-to-End

• Partner with customers to understand the "why" behind requirements

• Suggest product/engineering tradeoffs that maximize user value

• Ship with early validation cycles and measure real-world impact

Drive Product Conversations

• Bring data-backed product suggestions and challenge existing approaches

• Map edge cases pragmatically using "minimum lovable product" mindset

• Collaborate directly with customers to shape working solutions

What We're Looking For

Technical Foundation

• Backend engineering experience with distributed systems and cloud platforms

• Go (or similar systems languages), gRPC, MongoDB, Terraform experience

• Curiosity about AI and automation solving real business problems

Product-Minded Traits

• Deep interest in business models, user behavior, and success metrics

• Track record of challenging specifications and bringing product ideas

• Experience working with product managers, designers, and customer teams

Exceptional Qualities

• Self-directed with a "yes, and" mentality toward new ideas

• Authentic communicator who builds people and ideas up

• Intrinsically motivated by building great products

• Optimistic problem-solver who generates enthusiasm

Our Stack

AI-driven products on LLMs, Go, gRPC, MongoDB, Terraform, Auth0, TypeScript/Next.js, Datadog

Why Join Acai

Proven Growth: 30% monthly growth, founders sold previous company to AmEx GBT
Dual Impact: Drive technical excellence and customer relationships
Personal Growth: Zen/Buddhist culture focused on self-awareness and empowerment
Meaningful Equity: Significant ownership in category-defining startup
Epic Perks: Barcelona base, world-class off-sites, strategic customer travel

Location & Benefits

Barcelona, Spain - In-person at WeWork Glories. Travel for strategic customers worldwide.

Competitive salary + significant equity, private health insurance, office perks, epic off-sites.

We welcome exceptional engineers from all backgrounds. You don't need fancy companies on your resume—we love builders who've held together failing startups. What matters is your obsession with the craft and ability to make everyone more excited about building great products.