Senior Product Engineer

Social network you want to login/join with: Location: Barcelona (WeWork Glories)Team: EngineeringType: Full-timeAbout 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 needsOwn 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 impactDrive 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 solutionsWhat 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 problemsProduct-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 teamsExceptional 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 enthusiasmOur Stack:AI-driven products on LLMs, Go, gRPC, MongoDB, Terraform, Auth0, TypeScript/Next.js, DatadogWhy Join Acai:Proven Growth: 30% monthly growth, founders sold previous company to AmEx GBTDual Impact: Drive technical excellence and customer relationshipsPersonal Growth: Zen/Buddhist culture focused on self-awareness and empowermentMeaningful Equity: Significant ownership in category-defining startupEpic Perks: Barcelona base, world-class off-sites, strategic customer travelLocation & 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._Compensation Range: €60K - €70K J-18808-Ljbffr

Location: Barcelona, Cataluña, ES

Posted Date: 11/17/2025