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Senior Backend Engineer with MLOps

Hybrid in Madrid·Full-time·Added yesterday (last checked 23 Oct)

Parser Digital

24 open roles

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Our summary

Work mode: Hybrid, Madrid
Contract: Full-time
English: Required
Experience: 6+ years
Education: University degree
Benefits: Private health insurance

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Skills

Nice to have

Requirements

What we're looking for

Qualifications

Bachelor's or Master's degree in Computer Science, Software Engineering, or a related technical field.
6-7 years of experience in Software, Data, or ML engineering roles (preferred).
Strong problem-solving skills, proficiency in Java and desirable Python.
Understanding of ML algorithms, model architectures, and experience building scalable, reliable ML systems.
Exposure to cloud platforms (e.g., AWS), containerization (Docker), and scalable data systems (e.g., Spark, Kafka).
Familiarity with CI/CD tools (e.g., GitHub Actions), ML model serving technologies (e.g., MLflow), and ability to collaborate well across teams.

Nice to have

Ideal Candidate

This role is well-suited to someone with a solid foundation in at least one of the following areas: software engineering, data engineering, distributed systems, or applied machine learning and a readiness to grow into others as the work requires. We welcome candidates who are strong, language-agnostic problem solvers and passionate about building robust ML systems, even if you don't meet every single requirement listed.

Pay & benefits

What you'll get

What We Offer

A friendly and collaborative team keen on knowledge sharing and continuous learning
Health Insurance
Opportunity to work on cutting-edge MLOps & Machine Learning infrastructure, leveraging technologies like Java, Python, AWS, Docker, Kafka, Spark, and MLflow to power real-time ML systems.

The role

At Parser, we are seeking a Senior Backend Engineer with strong MLOps expertise to join the Machine Learning Engineering team of a global leader in the travel industry. In this role, you will help design, build, and maintain the infrastructure that powers our ML solutions-managing data pipelines, streamlining model deployment, and optimizing compute resources. You'll work on high-impact systems such as ranking, recommendation, and pricing optimization, while collaborating closely with data scientists to integrate models into production.

Role Overview

We're seeking a passionate and experienced SW Engineer to join the Revenue Optimization ML team. This high-impact role combines infrastructure expertise with applied MLOps knowledge, requiring proficiency in software engineering, distributed systems, and machine learning operations.

What you'll do

Key Responsibilities

Design and implement scalable ML infrastructure for training, deployment, and serving in batch and real-time environments.
Build and maintain efficient data pipelines for large-scale processing and feature engineering.
Optimize compute resources and improve model serving performance across ML systems.
Implement robust monitoring, logging, and alerting systems, and contribute to ML Ops practices including CI/CD pipelines.
Collaborate closely with Data scientists to streamline the model development-to-production workflow.
Research and integrate new technologies, mentor junior engineers, and communicate technical solutions to diverse stakeholders.

How you'll work

Location:

Madrid: Hybrid model, 2-3 days per week

About Parser Digital

Parser (Parser Limited) is a technology consultancy focused on "Applied AI for measurable impact", delivering AI implementation, product development, and technology modernisation for global organisations. It describes itself as "Boutique by design", combining strategic consulting with hands-on delivery in a single team, with expertise spanning product, engineering, data, quality, and AI. The company holds ISO 27001 certification for information security management and was an EY Entrepreneur of the Year finalist in 2024.

Website: parserdigital.com

Good to know if you are moving

Parser has co-working bases in two Spanish cities: Barcelona (Utopicus Torre Marenostrum) and Madrid (Networkia Castellana).
The company works with a hybrid model: "We work anywhere our clients are, with teams assembled globally, around each challenge."
Multiple senior engineering roles are currently open in Spain, including Site Reliability Engineer, AI Engineer, Backend (Java/Kotlin, Golang), Mobile (KMP, iOS, React Native), Data Engineer, DevOps, and Fullstack positions.
Parser is ISO 27001 certified for information security management.
The company describes its work as "High-stakes work for global clients, high-calibre teams, and growth driven by talent and ambition."