Software Engineer

vor 2 Wochen

Berlin, Deutschland OnHires Vollzeit

Location: Germany or NetherlandsLanguage: Fluent German or Dutch (C2 or Native-Level)Type: Full-time Work setup: Remote for now, transitioning to an office-first culture as local teams expand.Contract: Official employment under Dutch/German labor lawSeniority: Mid–Senior Level (2–6 years of experience)About our clientOur client is one of the fastest-scaling AI companies in Europe, backed by €134M in recent funding from top-tier investors (Index, Bezemer). The company builds enterprise-grade multilingual AI agents for voice, chat, and email, already used by leading brands in telecom, energy, banking, insurance, mobility, and healthcare.Their AI agents handle over 300,000 customer interactions every week, delivering automation with a natural human-like experience - including real-time problem solving, intent understanding, and contextual reasoning The company combines a powerful AI platform with strong local implementation support, enabling enterprises to deploy production AI agents at scale in any language and any market.Why this company is unique €134M fresh funding (summer 2025) Live in production with more than 10 enterprise clients Handles tens of thousands of concurrent conversations with enterprise-grade reliability Fully compliant and secure: monitoring, dashboards, guardrails, auditability Solves real business challenges: invoices, contracts, subscriptions, telecom/energy issues, banking queries Built by ex-AWS, ex-SAP, ex-McKinsey, TUM/RWTH engineers Not research - real AI deployed at massive scale You will join a team creating AI systems used daily by millions of end users.About the RoleWe are hiring a backend-focused Software Engineer to build production-grade AI agent systems handling millions of customer interactions. This is not a research/ML role - the work is core software engineering: building backend systems, APIs, distributed services, integrations, AWS architecture, and performance-critical features. You will work on the systems that run the company’s voice and chat agents.Your Responsibilities Build backend components powering AI voice/chat agents Design and maintain APIs, microservices, and system integrations Develop reliable, scalable backend services on AWS Integrate client systems (CRM, ticketing, telephony, internal tools) Improve performance, latency, and reliability of core agent systems Contribute to infrastructure automation and deployment pipelines Collaborate closely with product and ML engineering teams Requirements 2–6 years of professional experience as a Software Engineer or Backend Engineer Strong experience in one of: Java, Go, TypeScript, or Python Hands-on backend development: APIs, services, integrations Practical experience with AWS (Lambda, ECS, DynamoDB, SQS/SNS, API Gateway, etc.) Understanding of distributed systems, async patterns, event-driven designs Solid system design fundamentals and clean coding mindset Fluent German or Dutch (C2 or Native-Level), plus very strong English Nice to Have Experience with LLMs, RAG, or AI agents Familiarity with ASR/TTS, telephony, Twilio, WebRTC Experience with enterprise clients or B2B SaaS products Background working with high-scale or latency-sensitive systems Why This Role Is Special Work directly with a world-class engineering team (ex-AWS, SAP, McKinsey, TUM, RWTH) Build real AI products used by major European enterprises Huge technical ownership and ability to influence architecture Modern stack, fast product cycles, no bureaucracy Opportunity to grow into Senior/Tech Lead as the team scales

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