Senior Software Engineer (ML/AI), Barcelona

Jordan martorell s.l.; Madrid; Presencial; EUR 50.000 - 70.000; Jornada completa

Descripción de la vacante

A leading tech company in Madrid seeks a Senior Software Engineer (ML / AI) to design and develop advanced AI systems. The ideal candidate will have over 5 years of experience, strong Python skills, and a background in NLP and LLM models. Responsibilities include enhancing AI services, collaborating with teams on product development, and mentoring peers. The company offers a dynamic work culture and various benefits, emphasizing innovation and self-care.

Servicios

Flexible working environment

Vibrant work culture

Various employee benefits

Formación

• 5+ years of experience as a Software Engineer or similar role.
• Proven track record of deploying AI services in production.
• Experience with relational and non-relational databases.

Responsabilidades

• Design and develop production-grade AI systems and APIs.
• Work with data scientists to set requirements for models.
• Conduct code reviews and mentor team members.

Conocimientos

Python programming

NLP and LLM models

Collaborative team player

Strong analytical thinking

Educación

Bachelor’s or Master’s degree in Computer Science or equivalent

Herramientas

Open-source agentic frameworks (e.g., LangGraph)

Python

Descripción del empleo

Senior Software Engineer (ML / AI)

Workato transforms technology complexity into business opportunity. As the leader in enterprise orchestration, Workato helps businesses globally streamline operations by connecting data, processes, applications, and experiences. Its AI-powered platform enables teams to navigate complex workflows in real-time, driving efficiency and agility.

Trusted by a community of 400,000 global customers, Workato empowers organizations of every size to unlock new value and lead in today's fast‑changing world. Learn how Workato helps businesses of all sizes achieve more at workato.com.

Why join us?

Ultimately, Workato believes in fostering a flexible, trust‑oriented culture that empowers everyone to take full ownership of their roles. We are driven by innovation and looking for team players who want to actively build our company.

We also believe in balancing productivity with self‑care. That’s why we offer all employees a vibrant and dynamic work environment along with a multitude of benefits they can enjoy inside and outside of their work lives.

If this sounds right up your alley, please submit an application. We look forward to getting to know you!

Achievements

• Business Insider named us an enterprise startup to bet your career on
• Forbes Cloud 100 recognized us as one of the top 100 private cloud companies in the world
• Deloitte Tech Fast 500 ranked us as the 17th fastest growing tech company in the Bay Area, and 96th in North America
• Quartz ranked us the #1 best company for remote workers

Responsibilities

We are looking for a Senior AI Engineer to play a key role in building the core of our AI platform. In this position, you will design and develop production‑grade systems that power intelligent automation, agentic workflows, and large‑scale retrieval services. This is a highly technical, hands‑on role that involves close collaboration with product and platform teams to transform advanced AI concepts into reliable, scalable, and secure solutions used across our enterprise ecosystem.

• Design, build, and enhance AI services and APIs powering our Workato products, leveraging LLMs and custom ML models.
• Develop an enterprise‑grade agentic platform, knowledge retrieval services, multi‑agent collaboration.
• Develop agentic evaluation framework, defining success metrics and criteria, leveraging LLM‑as‑judge approach.
• Work with data scientists and data engineers to define requirements for fine‑tuned models and capturing eval datasets.
• Develop well‑architected, testable, and efficient Python code for production services and experimentations.
• Implement and improve validation, monitoring, and observability for production‑grade solutions.
• Drive the full development lifecycle: from ideation and architecture to deployment and continuous improvement.
• Identify and resolve bottlenecks, bugs, and technical challenges in a fast‑paced, iterative environment.
• Conduct code reviews and mentor team members to uphold high engineering standards.

Qualifications / Experience / Technical Skills

• Bachelor’s or Master’s degree in Computer Science, Engineering, Information Systems, Science or equivalent industry experience.
• 5+ years of experience as a Software Engineer, Data Scientist, or similar role.
• Strong Python programming skills and hands‑on experience with NLP and LLM models.
• Proven track record of deploying and maintaining AI services in production environments.
• Experience with open‑source agentic frameworks (e.g., LangGraph, Google ADK) and vector databases.
• Knowledge of agentic architectures and multi‑agent systems; experience building chat‑based agents or copilots.
• Experience with relational and non‑relational databases.

Preferred Skills

• Familiarity with observability best‑practices.
• LLMops / MLops experience.
• Experience building or supporting developer platforms.
• Solid understanding of network protocols, API design, distributed architecture.

Soft Skills / Personal Characteristics

• Strong written and spoken English ability to communicate complex ideas clearly to technical and non‑technical stakeholders.
• Curiosity and ability to be current with the latest technologies.
• Collaborative team player who takes initiative and thrives in a dynamic startup environment.
• Analytical thinker with a focus on continuous improvement and innovation.