The English-language job board for Spain

AI Engineer

Remote, Canada +6·Full-time·Added 8 months ago

This job was published 8 months ago

Reflow

7 open roles

Overview

Job details

  • Full-time hours

    Per the ad.

  • Fully remote

    Per the ad.

Requirements

  • Have the right to work in Spain

    Reflow doesn't mention sponsorship in the ad.

  • Have 4+ years of experience

    Mid-level role.

Pay & benefits

What you'll get

We offer competitive pay based on the market and where you're located. The salary ranges in our job postings are intentionally wide because they need to cover both U.S. and international candidates. Our final offer will depend on things like your experience, skill set, and location.

Requirements

Nice to have

  • Experience integrating AI into desktop or web apps.

  • Familiarity with LangChain, OpenAI API, or similar frameworks.

  • Background in automation systems, workflow optimization, or enterprise AI tools.

The role

We're building Reflow, a workforce and workflow intelligence platform that helps teams understand and improve how work gets done. A key part of that vision is Reflow AI, agentic, automation-focused intelligence that adapts to how people actually work. We're looking for an AI developer who can experiment fast, optimize intelligently, and help us push the boundaries of AI-assisted performance.

What you'll do

  • Develop, optimize, and maintain agentic AI pipelines for automation and workflow intelligence.

  • Experiment with prompt engineering, context tuning, and model orchestration to improve performance and adaptability.

  • Work with vector databases, RAG (retrieval-augmented generation), and related frameworks for contextual intelligence.

  • Collaborate with engineers and product teams to integrate AI systems into real-world workflows.

  • Continuously refine and improve models through experimentation, data feedback, and iterative development.

Who you are

  • 2+ years working on agentic AI systems that have scaled to external users

  • 4+ years as a Backend Developer or similar engineering role

  • Strong foundation in Python, LLMs, and agentic architectures.

  • Experienced in prompt engineering, context optimization, and AI pipeline design.

  • Comfortable building fast prototypes and testing model behavior in varied, complex contexts.

  • Curious, pragmatic, and unafraid to experiment, you turn uncertainty into working systems.

Why join

You'll help shape the intelligence core of Reflow, the layer that learns from work patterns and turns data into action. You'll work across experiments, prototypes, and production systems, collaborating directly with founders and engineers. Ideal for someone who loves to push AI beyond the theoretical into the real.

About Reflow

Reflow is a technology company that builds a platform for managing and optimizing the flow of work within organizations. The company provides software solutions that help teams coordinate, automate, and streamline their workflows, with a focus on data-driven decision-making and operational efficiency. Reflow operates at a global scale, serving clients across multiple industries with its cloud-based platform.

Reflow has a significant presence in Spain, with its headquarters located in Madrid. The company is known for a modern, engineering-driven culture that values autonomy, continuous learning, and the use of cutting-edge technologies. For international professionals, Reflow offers a collaborative and remote-friendly environment, with opportunities to work on complex technical challenges alongside a diverse, distributed team.

Founded
2021
Employees
11–50
Headquarters
Madrid, Spain
In Spain
Madrid

Good to know if you are moving

  • Reflow's team and documentation are fully in English, making it accessible for international hires.
  • The company is remote-friendly, allowing for flexible work arrangements.
  • Madrid is a major European tech hub with a growing international community.
  • The company uses a modern tech stack, offering opportunities to work with the latest tools and frameworks.
  • As a smaller company, employees often have a high degree of ownership and impact on the product.
All open roles at Reflow
WhatsApp