Lead Software Engineer (Barcelona)

Join the Lead Software Engineer (Barcelona) role at Acai Travel .

We are looking for an exceptional Lead Engineer who thrives at the intersection of deep technical expertise and customer engagement. This is a 50 / 50 role : half the time architecting and building solutions in Go, half working directly with customers—understanding their needs, designing technical solutions, and ensuring successful implementations.

Base pay range

Lead Engineer - Customer Solutions & Technical Leadership

Location : Barcelona, Spain

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 Lead Engineer who thrives at the intersection of deep technical expertise and customer engagement.

What Makes You Exceptional

• Extreme Ownership : You challenge specs, suggest alternatives, and drive ideas to completion. You own customer success end‑to‑end.
• Product Obsession : You ask “why?” relentlessly and dive into user behavior, business metrics, and customer feedback.
• Optimistic Collaboration : You make everyone—engineers AND customers—more excited about building.
• Authentic Communication : You build great relationships with both technical and non‑technical stakeholders.
• Craft Excellence : Joy comes from the craft itself. You love both solving customer problems and writing beautiful code.
• Customer Empathy : You genuinely care about customer success and can translate their pain points into technical requirements.

What You’ll Do

Lead Customer Solutions (50%)

Build Technical Solutions (50%)

What We’re Looking For

Technical Foundation

Customer‑Facing Excellence

Product‑Minded Engineering

Exceptional Qualities

Our Stack

Proprietary Agentic AI, Go, gRPC, MongoDB, Terraform, Auth0, TypeScript / Next.js, Datadog, AI‑driven products on LLMs, distributed systems, event‑driven architecture.

What Success Looks Like

Why Join Acai

Reporting Structure

Location & Benefits

We welcome exceptional engineers from all backgrounds. You don't need fancy companies on your resume—we love builders who've worked closely with customers and understand that great code is only valuable if it solves real problems. What matters is your ability to build deep customer relationships, your technical craftsmanship, and your drive to make customers successful.

Ready to lead customer solutions and build something exceptional?

Compensation Range : €60K - €80K

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