About the Role

Help build the platform that connects Factorial to the broader software ecosystem, establishing a strong engineering foundation today and integrating AI into future workflows.

The Team

The Engineering team, consisting of 200+ Product Engineers, builds a Business Management solution. The API & Integrations team operates between product and platform, managing the public API, integration framework, and developer experience.

Responsibilities

- Own end‑to‑end development of the public API and integrations framework, from problem definition and system design to shipping, monitoring, and iteration in production.
- Collaborate closely with Product and Design to shape APIs and frameworks that meet real user needs.
- Ensure consistent user and integration experience across verticals, aligned with Factorial’s design system.
- Participate in customer calls, reviews, and feedback sessions to understand workflows and pain points.
- Mentor peers, document learnings, and contribute to engineering best practices.
- Define and drive AI initiatives related to the YepCode acquisition, including skill‑based agents, evaluation frameworks, RAG, and agentic workflows.

Qualifications

- Development maturity: produce solid, well‑tested, production‑grade code and own systems end‑to‑end.
- Proven impact: demonstrated projects or contributions that produced measurable results.
- Product‑first thinking: design end‑to‑end experiences,



not isolated components.
- Speed and adaptability: experiment, learn, and iterate quickly.
- Abstraction mindset: experience working with legacy/monolithic systems and building reusable frameworks for multiple teams.
- Optional bonus: experience with LLMs, skill‑based agents, or AI protocols.

Technical Foundation (Preferred)

- Strong software engineering fundamentals in any language, backend, frontend, or both.
- Shipping real products to production.
- Knowledge of APIs, cloud platforms, and system design.
- Fast learning of new tools and technologies.
- Experience with legacy/monolithic systems and evolving internal frameworks.

How We Work

- Office‑first with adaptable schedule; on‑site several days a week for collaboration, with remote work supported when appropriate.
- Career path framework that defines expectations, tracks growth, and includes salary information.

Benefits

- High‑growth, multicultural environment.
- Private health insurance (Alan).
- Wellhub for health and fitness (gyms, pools, outdoor classes).
- Expense savings through Cobee.
- Language classes.
- Breakfast and organic fruit in the office.
- Food discounts with Nora.
- Pet friendly workplace.

EEO Statement

Factorial welcomes applicants from all backgrounds and is committed to equal opportunities, actively promoting workplace inclusion for people with disabilities.

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📌 Staff AI Engineer - API & Integrations Team (A Coruña) (Oleiros)
🏢 Factorial
📍 Oleiros