Experteer Overview In this role you will shape the Agentic Orchestration domain, aligning multiple engineering teams around coherent architecture and shared principles.

You will code hands-on roughly half the time while guiding cross-domain design and trade-offs to support scalable, reliable conversational AI platforms.

You'll influence technical direction, foster a culture of pairing and experimentation, and ensure architecture supports fast, principled AI-driven development.

This is a high-impact role at the core of Sinch's conversational AI stack, with broad visibility across the company.

Compensaciones / Incentivos • Influence architecture across five cross-functional teams and pair with engineers to implement designs • Own domain architecture, contracts, data flows and documentation of decisions and trade-offs • Lead cross-domain initiatives with principal engineers and architects to solve complex problems • Set and promote engineering principles and practices for agentic systems, including AI tooling usage • Evaluate build-vs-buy, platform consolidation, and deterministic vs agentic designs • Create diagrams, models, and narratives to align engineers,



product, and leadership • Grow technical leadership by coaching tech leads and senior engineers Responsabilidades • 10+ years building software and experience as principal, staff, or architect in distributed systems • Strong track record in applying engineering principles to maintain coherence and quality • Extensive pair or mob programming experience • Hands-on use of AI-based development tools and an experimental mindset • Deep understanding of complex systems, emergent behaviour, and sociotechnical architecture • Strong judgment for trade-offs in uncertain environments and ability to communicate reasoning • Excellent visual thinking and ability to convey architecture with diagrams/models • Polyglot with deep expertise in at least two languages (Java or a JVM language strongly preferred) and Go; familiarity with TypeScript • Solid understanding of LLMs and agent-based system design • Ability to influence without formal authority and communicate in English Requisitos principales •

📌 Principal Software Engineer (Madrid)
🏢 Sinch
📍 Madrid