Software Engineer (Backend) — AI Agent Systems
About this role
Location: Germany or Netherlands
Language: 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 law
Seniority: Mid–Senior Level (2–6 years of experience)
About our client
Our 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 Role
We 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
Originally posted on Himalayas
