#### Your Role We are growing our Agents team and looking for an experienced AI Engineer (m/f/d) to help build the next generation of agentic AI systems powered by Large Language Models (LLMs). Today the team is small and tight-knit and every hire meaningfully shapes what we build and how we build it. You will work across our full agentic surface chat meeting preparation recommendations and voice. This is a hands-on role at the intersection of reasoning tool-use and memory designing intelligent agents that operate in complex environments interact with APIs and structured data and drive real-world outcomes. It goes well beyond prompt engineering you will build robust decision pipelines and ship product-ready agents across both text and voice modalities. Proven experience building voice agents is an important requirement for this role. Voice is one of the most exciting frontiers of our product and we want someone who has done it to help the whole team excel there. That said this is not a voice-only role you will contribute across the Intelligence Layer and your voice background will be a force multiplier for everything we build together.#### Your Mission Design & Optimize Workflows Design implement and optimize agentic workflows using LLMs across chat meeting prep and recommendations. Build Tool-Using Agents Create agents that interact with external APIs databases and environments. Advance our Voice Agents Push our voice-enabled agents forward including pipeline design for real time conversation transcription (ASR) speech synthesis (TTS) turn-taking and dialogue management with a focus on low latency and reliability. Integrate Memory & State Implement retrieval long-term memory and state tracking into agent architectures. Deploy in Production Collaborate with product teams to deploy agents in production and keep them healthy. Evaluate & Improve Design and run experiments to evaluate agent performance correctness latency and hallucination rates. Translate Product Needs Turn high-level product requirements into scalable testable agentic features. #### Your profile What you need to succeed Voice AI (important requirement) Proven hands-on experience building voice agents in production and working with ASR TTS or real-time/streaming voice pipelines. Voice is a core focus of this hire and we expect you to bring real depth here. LLM Expertise Strong experience building with LLMs (e.g. OpenAI Claude Mistral open-source models). Agentic Frameworks Familiarity with agentic frameworks (e.g. LangChain LangGraph). Programming Proficiency Proficient in Python and modern ML tooling (e.g. Hugging Face PyTorch Ray etc.). Tool Integration Experience with tool integration calling APIs managing memory/state or SQL query generation. Simulation-Based Testing Experience with simulation-based testing and evaluation of conversational and voice agents (e.g. Coval Bluejay) used to measure agent performance correctness and regressions at scale. Startup Mindset Comfortable in an iterative fast-paced product environment and energized by helping a small team level up. #### Why Acto? Development Opportunities Steep development opportunities without entrenched hierarchies. Culture We are an ambitious team that wants to achieve a lot with Acto but we don't take ourselves too seriously and like to have fun together be it working together or at regular team events. Flexibility Enjoy a flexible work schedule and a remote set up with the option to work from our Berlin Office. Health & work-life balance Enjoy 30 days of vacation and an attractive Wellhub membership. Ownership Whether you are an intern or a full-time acto-naut Acto instills a deep sense of ownership where every team member is entrusted with meaningful responsibilities and the autonomy to make impactful decisions. Equipment You will receive a state-of-the-art hardware setup with a choice between Mac and Windows. #### About us Acto is building the AI Revenue OS for industrial companies — the system that determines where revenue is generated and what needs to happen next. Today the most important commercial decisions are still made manually which customers deserve attention where revenue is being lost which opportunities are emerging and which team needs to act. We’re changing that. Acto connects ERP CRM and behavioral data into a unified context turns it into clear actionable decisions and ensures those decisions actually get executed in day-to-day operations. No reporting. No additional dashboards. Just a system that actively drives and orchestrates revenue. Our customers use Acto to unlock measurable growth from their existing customer base — with results like +5–11% revenue growth in their core business. We’re starting in wholesale — one of the largest yet least digitized industries globally — and from there building the central control layer for revenue across the entire industrial economy. Backed by investors like 468 Capital and Cusp Capital we’re already working with leading companies and scaling rapidly.