Full Stack Engineer, AI systems

Bjak·Germanymid

In short

→Ingeniero full stack que construye sistemas de IA proactivos con flujos de trabajo persistentes y confiables.
→Día a día: diseña y entrega funciones de producto que integran LLMs, memoria y herramientas externas con bajo latencia y alta fiabilidad.
→Lo destacado: trabajas en una startup de IA que busca reducir la dependencia de prompts y hacer que la inteligencia artificial sea intuitiva para todos.

No se requiere inglés, pero el puesto está en una empresa global con comunicación en inglé

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What they ask for

✓Experiencia sólida en ingeniería full stack (frontend + backend)
✓Entendimiento claro de diseño de sistemas y arquitectura de APIs
✓Experiencia con LLMs, sistemas RAG o aplicaciones de IA
✓Capacidad para tomar decisiones pragmáticas en entornos ambiguos
✓Propiedad sobre features desde la idea hasta producción
✓Capacidad de trabajar en entornos rápidos con requisitos en evolución

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Next.jsPythonNode.jsPyTorchOpenAIAnthropicopen-source LLMsSQLnoSQLKubernetes

Who should you write to at Bjak?

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About ActAI There are over 5 billion users using basic applications today such email, notes, tasks, calendar and they're not AI-native. Our mission is to build proactive applications for anyone in the world, who are not used to complex prompting. We aim to bring intelligence to conversations, errands, organising and workflows, with minimal to no prompting. Our product focuses on achieving high reliability for long-running workflows, persistent context, and real-world task completion. We believe products will greatly reduce hallucinations. Our objective is to organise anyone's life, allowing us all to spend time on valuable and meaningful things. Role We are looking for a Full Stack Engineer - AI Systems to build the product layer that turns these capabilities into usable, production-grade workflows. This includes designing how agents operate, fail, recover, and deliver consistent value to users. Focus Build end-to-end product features across frontend, backend, and AI integrations Design agent workflows that handle planning, tool use, failure, and recovery across multiple steps. js Python NodeJs Pytorch OpenAI / Anthropic / open-source LLMs SQl & noSQL Kubernetes Docker How We Work The best products today in the world were built by small, world class teams. We are a high talent density and hands-on team. We make decisions collectively, move at rapid speed, striking a balance between shipping high quality work and learning. Joining our team requires the ability to bring structure, exercise judgment, and execute independently. Our goal is to put in hands of our users a truly magical product Interview process If there appears to be a fit, we'll reach to schedule 3, but no more than 4 interviews. Applications are evaluated by our technical team members. Interviews will be conducted via virtual meetings and/or onsite. We value transparency and efficiency, so expect a prompt decision. If you've demonstrated the exceptional skills and mindset we're looking for, we'll extend an offer to join us. This isn't just a job offer; it's an invitation to be part of a team that's bringing AI to have practical benefits to billions globally.

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