Senior AI Fullstack Engineer – Cloud Applications

HiveMQ; Madrid; Presencial; EUR 58.000 - 110.000; Jornada completa

Descripción de la vacante

HiveMQ is seeking an experienced engineer to design and evolve autonomous coding agents' architecture. The ideal candidate has a strong software engineering background with 5+ years of experience in TypeScript, Node.js, and React, along with extensive production-level experience with AWS services like Lambda and DynamoDB. Responsibilities include building infrastructure, evaluating AI coding agents, and collaborating with product leadership. Competitive compensation ranges from €58K to €110K, ensuring fair selection based on qualifications.

Formación

• 5+ years of software engineering experience with full-stack applications.
• Production-level AWS experience, including Lambda and DynamoDB.
• Extensive work with AI coding agents and LLM-powered workflows.
• Experience building monitoring and self-healing production systems.
• Solid architectural skills for distributed systems.
• Ability to translate product goals into precise technical specs.
• High sense of ownership and agency.
• Excellent communication skills in English.

Responsabilidades

• Design and evolve the architecture of the autonomous agent swarm.
• Build and own the infrastructure for the AI-native pipeline.
• Lead with rigorous technical specs for AI-powered implementation.
• Evaluate coding agents and LLM models for correctness and performance.
• Maintain the TypeScript/Fastify backend and React architecture.
• Define guardrails and monitoring systems for production safety.
• Collaborate with engineering and product leadership.
• Stay updated on AI tooling and frameworks.

Conocimientos

Software engineering background

AWS infrastructure

AI coding agents

DevOps mindset

Architectural skills

English communication

Descripción del empleo

HiveMQ’s Vision for this role

We aren't just using AI to help us code; we are an AI-native engineering organization. Our next major milestone is architecting a swarm of autonomous coding bees – specialized agents designed to handle end-to-end feature delivery, from infra provisioning to self‑correction. We need an engineer who can define the hive's architecture, the pollination patterns (data flow), and the rigorous guardrails that allow these agents to build – and run – at scale.

You will

• Design and evolve the architecture of our autonomous agent swarm – defining agent boundaries, data flows, and the feedback loops that allow bees to self‑correct and deliver features end‑to‑end.
• Build and own the infrastructure that powers our AI-native pipeline, including several AWS services like Lambda functions, DynamoDB, SNS/SQS.
• Lead with rigorous technical specs – if the logic isn’t in the spec, it doesn’t exist – translating complex product requirements into precise, agentic‑ready designs that serve as the single source of truth for AI‑powered implementation.
• Steer and evaluate coding agents and LLM models, reviewing their output against a high‑quality mental model to ensure correctness, performance, and security.
• Extend and maintain our TypeScript/Fastify backend and React micro‑frontend architecture, improving observability, reliability, and test coverage across the stack.
• Define and enforce guardrails, monitoring systems, and self‑healing mechanisms that keep autonomous agents operating safely in production.
• Collaborate with Engineering and Product leadership to shape the long‑term vision of AI-native development at HiveMQ.
• Stay at the forefront of AI tooling, agent frameworks, and LLM capabilities, continuously refining how the hive thinks and builds.

You have

• A strong software engineering background (5+ years) with hands‑on experience architecting and delivering full‑stack applications in TypeScript, Node.js, and React.
• Production‑level experience with AWS infrastructure – Lambda, DynamoDB, and related services – including an intuitive understanding of where things break at scale.
• Worked extensively with AI coding agents and LLM‑powered workflows, and know how to steer them effectively rather than just prompt them.
• A DevOps‑first mindset – you’ve built the monitoring, alerting, and self‑healing systems that keep production environments healthy without constant human intervention.
• Solid architectural skills around bounded contexts, idempotent design, decoupled micro‑frontends, and distributed systems.
• The ability to translate ambiguous product goals into precise, agentic‑ready technical specs with no room for misinterpretation.
• A high sense of ownership and agency – you proactively identify bottlenecks, propose solutions, and follow through without being prompted.
• Excellent English communication skills and the ability to collaborate effectively across engineering, product, and leadership in a remote‑first environment.

Job advertisements of HiveMQ GmbH are always directed at female, male and various applicants, regardless of age, gender, religion, sexual identity, disability, race, ethnic origin, world view, etc. The selection of a candidate is exclusively based on qualifications. For organisational reasons, we cannot return application documents and cannot reimburse any expenses that you incur during the application process.

Compensation Range: €58K - €110K