Technology alone does not create impact
- the right teams do. Founded in ****, Parser is a boutique technology services and consulting firm helping global organisations solve complex business challenges through digital transformation, product development and AI enablement. We combine global reach with a mindset focused on agility, senior expertise, and close work as an extension of our clients' teams, helping them define the right problems, shape solutions, and deliver technology-driven outcomes that create measurable business value. Our expertise spans software engineering, AI & data, product development, and customer experience, delivered by teams that combine strong technical depth with a consulting mindset. If you are looking for a place where you can think beyond execution, take true ownership of outcomes, influence decisions, and continuously learn alongside top-tier specialists in a truly global environment, we'd love to meet you. We are looking for an experienced Python Backend Engineer to join a client delivery team working on Search with one of the largest multinational retail companies, primarily known as a supermarket chain. The client operates in multiple countries, including the UK, Ireland, and parts of Europe and Asia, and sells groceries, clothing, electronics, and other consumer goods, both in physical stores and online. It also offers financial services, mobile phone services, and fuel stations. You will build the backend services behind tools that help Search teams find problems, test changes and measure relevance more quickly, working alongside AI, data and DevOps engineers. Design and build Python backend services and APIs for search quality tooling, including a tool for collecting human relevance judgements Review and refactor the existing offline evaluation tool so that it can be deployed and run on demand in the CI/CD pipeline Translate product requirements into well-structured,



maintainable, test-driven code Integrate services with the shared data platform, existing client APIs and search infrastructure Work with product, design, data science and Search colleagues to turn prototypes into production releases Work closely with Search and data science colleagues to understand how the tools are used Experiment quickly, test assumptions against real data and iterate using evidence Strong Python skills, including building maintainable production services and REST APIs Experience reviewing, refactoring and productionising existing code so that it runs reliably in a pipeline Good testing discipline across application and data components, including test-driven development Experience with CI/CD, version control and containerisation, ideally with on-demand or temporary environments Experience with a major cloud platform, ideally Microsoft Azure Data and integration Proficiency with both SQL and NoSQL databases Experience integrating services with data pipelines, APIs and existing applications AI awareness Exposure to integrating LLM-based or other AI features into backend services, including validation of model outputs 6+ years of professional experience in backend or software engineering Experience in retail or ecommerce search, or with Elasticsearch or another production search platform Familiarity with offline evaluation, A/B testing or ranking metrics such as nDCG Experience with event streaming (for example Kafka) or medallion-style data pipelines Spain, adaptable remote work The chance to join an organization with triple-digit growth that is changing the paradigm on how software products are built. Medical insurance. By applying to this role, you acknowledge that your personal data will be processed in accordance with Parser's Privacy Notice for recruitment purposes. Parser may use AI-assisted tools during certain stages of the recruitment process to support operational efficiency.

📌 Engineer - back End Developer (España)
🏢 Parser
📍 España