Senior Software Engineer, Personalization at Dow Jones · Barcelona

Senior Software Engineer, Personalization Location: Spain - Barcelona Job Description: Senior Software Engineer, Personalization Dow Jones      Job Location: Barcelona       Job ID   ITD5035 - Sr Software Engineer About the Team: Our Technology team drives the evolution of our Technology, Engineering, Data, Product and User Experience functions. With a keen focus on delivering cutting-edge solutions, we shape the digital landscape for our customers, readers and users. From revolutionizing visuals to optimizing tools and harnessing the power of data, mobile, video and social platforms, our team is committed to providing a seamless and immersive experience across all touchpoints. Collaborating closely with our newsrooms and strategic partners, we spearhead the development of groundbreaking products and technologies. About the Role: We are looking for a Senior Software Engineer to join our Personalization team in Barcelona. You will design and build systems that deliver highly relevant, personalized experiences across our digital products. This role sits at the intersection of backend engineering, data, and applied AI—leveraging modern architectures and machine learning techniques to connect users with the most relevant content. You will play a key role in developing scalable personalization platforms, including recommendation systems and retrieval-augmented generation (RAG) pipelines, working closely with product, data science, and design partners. You Will: Design, build, and operate personalization systems and services powering content discovery and user engagement Develop and maintain RAG pipelines integrating LLMs with structured and unstructured data sources Build recommendation engines (content, articles, entities, or signals) using collaborative, content-based, or hybrid approaches Own services end-to-end: architecture, implementation, deployment, and production reliability Collaborate with product managers, data scientists, and analysts to translate business needs into scalable technical solutions Optimize systems for performance, latency, and scalability across high-traffic environments Contribute to engineering best practices, including testing, observability, and CI/CD You Have: 3+ years of experience building backend systems and distributed services Strong proficiency in Python (production-grade systems) Experience working with RAG pipelines or LLM-based applications Understanding of data modeling, APIs, and microservices architectures Experience working with cloud platforms (AWS, GCP, or Azure) and containerized environments Familiarity with SQL and NoSQL databases Experience building personalized recommendation systems (e.g., ranking, candidate generation, user embeddings) Familiarity with machine learning workflows, feature engineering, and experimentation (A/B testing) Our Benefits: Comprehensive Healthcare Plans for you and your family (paid by Dow Jones) Extra paid Time Off (30 days of holidays/year) Possibility to work remotely for 3 months/year (desplazamiento program) or one week of remote work per quarter Meal benefit with Pluxee (171€/month on top of your salary) Retirement Plans (Dow Jones will pay 2% of a members Pensionable Salary and match employee contribution up to a maximum of 3 %). Comprehensive Insurance Plans Well-being Resources (200 USD allowance per quarter, Classpass, etc.) Family Care Benefits & Caregiving Support Subscription Discounts Employee Referral Program #LI-Hybrid This is a hybrid remote/in-office role, based in Barcelona. Equal Opportunity Employer All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, age, national origin, protected veteran status, disability status or any other protected characteristic. We strongly encourage applications from all qualified individuals, including women, people with disabilities, and those from underrepresented groups. Reasonable Accommodation We are committed to providing reasonable accommodation for qualified individuals with disabilities in our job application and/or interview process. If you need assistance or accommodation in completing your application or participating in an interview due to a disability, email us at talentresourceteam@dowjones.com. Please put "Reasonable Accommodation" in the subject line and provide a brief description of the type of assistance you need. This inbox will not be monitored for application status updates. Please refer to the privacy notice at the bottom of this page for submitting any data access, deletion, or other data subject rights requests, where permitted under your local laws and regulations. Business Area: Dow Jones - Technology Job Category: Software Product Engineering Union Status: Non-Union role