ppWe Make Voice AI Work. We ship production-ready agents that automate real sales and operations. /p /brpFlyboard.ai builds and operates custom AI voice agents that automate high-volume, repeatable workflows across commercial and operational processes. Our customers include fast-moving SMEs, corporates, and mid-market leaders across Europe and LatAm. We are execution-obsessed, customer-ROI-driven, and deeply committed to operational excellence. /p /brpAs a Software Engineer for the Core Platform, you will work closely with the founders and a small engineering team to design, build, and scale the foundational technology that powers our AI voice agents. Your mission is to own the performance, reliability, and technical excellence of our core platform, ensuring seamless integration with the world's leading AI model providers. This role is highly hands‑on, critical to our platform’s scalability, and central to Flyboard’s ability to deliver value at high volume. You will report directly to the Technical Cofounder. /p /brh3What You Will Do /h3 /brul /brliPlatform Development: Design and implement robust, scalable platform features for our core voice agent infrastructure. /li /brliAPI Integration Ownership: Build, maintain, and optimize high-throughput APIs, ensuring reliable integration with core model providers (OpenAI, Google, ElevenLabs, Anthropic, Amazon, etc.). /li /brliSystem Reliability: Optimize system performance, latency, and observability to ensure the core platform is stable and efficient under heavy load. /li /brliDeveloper Tooling: Develop and implement internal tooling and automation to streamline the work of our Operations and Delivery teams. /li /brliDeployment and Infrastructure: Improve our continuous integration/continuous deployment (CI/CD) pipelines and contribute to maintaining our cloud infrastructure (primarily AWS, with exposure to Azure and GCP). /li /br /ul /brpWe are looking for someone driven, analytical, structured, and hungry to grow. /p /brh3What you need:



/h3 /brul /brliTypically 2–5 years of relevant experience, although we care more about demonstrated ownership and technical ability than time in role. /li /brliStrong Python and backend engineering skills. /li /brliExperience building, deploying, and operating production software. /li /brliFamiliarity with APIs, distributed systems, cloud infrastructure, and observability. /li /brliThe ability to investigate technical problems methodically and take ownership through production. /li /brliComfort working in a fast-moving environment with changing requirements and direct customer impact. /li /brliPractical experience using AI coding tools such as Codex, Cursor, or Claude Code. /li /br /ul /brh3Nice to have: /h3 /brul /brliExperience with voice AI, conversational agents, real-time audio, or telephony systems. /li /brliExperience integrating LLM, speech-to-text, or text-to-speech providers. /li /brliAWS and CI/CD experience. /li /brliFamiliarity with model evaluation, prompting, tool use, or fine-tuning. /li /brliStrong product judgment and attention to user experience. /li /br /ul /brh3Why This Role Matters /h3 /brpThis role sits at the technical core of Flyboard’s product. Your work directly impacts the speed, quality, and scalability of every AI agent we put into production. You will learn how to operate and scale cutting‑edge AI systems, work closely with engineers and founders, and become a key contributor to our rapid growth. /p /brh3What We Offer /h3 /brul /brliA steep learning curve with direct exposure to founders and the initial team of a startup /li /brliReal ownership from day one, with impact visible immediately in customer outcomes /li /brliGenerous budget for AI coding tools /li /brliTechnical ownership with architectural influence /li /brliExposure to problems that are challenging, not just operationally busy /li /brliA dynamic, execution-driven environment with rapid iteration cycles /li /brliMostly on‑site, with flexibility to WFH sporadically when needed /li /brliPermanent, full‑time employment contract in Spain /li /br /ul","IsExpired":false} /p #J-18808-Ljbffr

📌 Software Engineer, AI, Full-stack (Barcelona)
🏢 Flyboard
📍 Barcelona