To accelerate our growth, we're looking for a talented Software Engineer to join our Engineering team and help us build an innovative product that will make a real impact on how thousands of users work every day.
TasksAbout the roleAs a Backend Engineer, you'll work on the core infrastructure that makes our AI platform fast, reliable, and scalable.
This is a role for someone who thrives at the intersection of backend engineering and applied AI, thinking about latency, reliability, and model behavior all at once.
AI orchestration: owning the core layer that coordinates AI workflows, model calls, multi-step reasoning, and multi-agent delegation, including RAG pipelines and knowledge bases
- LLM integration: integrating and tuning new LLMs into a production-grade backend, with a focus on security, guardrails, and evaluation (latency, response quality)
- Data ingestion & export: building robust pipelines and services to handle a variety of file formats reliably and at scale
- Context & token optimization: designing strategies to maximize LLM efficiency, manage context windows, and keep costs in check
- Infrastructure & observability: designing scalable APIs, automating deployment pipelines, monitoring, and testing to keep the platform reliable and performant
- Architecture & engineering culture:



participating in tech stack decisions, documenting technical knowledge, and continuously driving innovation across the AI platformRequirementsTechnical background
- 5+ years of experience with Node.
Js + TypeScript stack
- NestJS/React and PostgreSQL are a plus
- Hands-on experience (or strong familiarity) with AI/ML integration (LLMs, RAG, or similar)
- Solid understanding of backend architecture, scalability, and security best practices
- Experience with databases, authentication, and cloud platforms (AWS)
- Familiar with CI/CD, Git workflows, and agile methodologies
- Bonus: familiarity with other backend programming languages applied to AI (Python, Go...)Soft skills
- Strong technical communication
- Agile mindset focused on product and business value
- Ability to document and defend architectural decisions
- Balance between code quality and delivery speed
- Technical English requiredBenefits
- Health insurance provided by the employer
- Versátil

working hours
- Hybrid remote work
- Daily use of English through close collaboration with teams in the US and France
- Our office is situated in a lively innovation hub, offering access to local meetups, events, and a strong professional community.

📌 Backend Software Engineer (España)
🏢 Goodweek
📍 España