Senior Product Engineer

Relexsenior

In short

▸Ingeniero de producto que construye y mejora modelos de predicción basados en plugins para retailers y fabricantes.
▸Trabajas desde la necesidad del negocio hasta el modelo en producción, con impacto real en clientes globales.
▸Destaca por liderar la transición de modelos monolíticos a una biblioteca escalable de modelos especializados.

Proficiency in English is required for collaboration across global teams.

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What they ask for

✓Experiencia en ingeniería de productos con enfoque en modelos predictivos
✓Capacidad para pasar de necesidades empresariales a modelos en producción
✓Dominio de ingeniería de características (feature engineering)
✓Experiencia en pruebas y mejora de modelos en entornos reales
✓Colaboración estrecha con equipos de negocio y clientes
✓Capacidad para trabajar en un entorno de crecimiento acelerado y cambio constante

Don't tick every box? That's normal — your free dossier shows your gaps and how to cover them in the interview.

Plugin-based forecasting modelFeature engineeringModel testingProduction deploymentCustomer-facing model deliveryReal-time data processingData pipelinesA/B testingModel performance monitoringCross-functional collaboration

Who should you write to at Relex?

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Who we are We're bold thinkers and kind teammates, growing fast but staying grounded. Our Nordic roots and global outlook shape a culture of friendliness, creativity, and collaboration, all powered by openness and shared wins. We care deeply about doing the right thing, and doing it together. We aim to improve the flow of goods, time, and energy, and we know we can't shape the future by clinging to the past. So, we keep evolving, together. What we do RELEX runs the planning decisions behind 600+ retailers and manufacturers worldwide, deciding, at real scale, what gets forecast, stocked, priced, promoted, and produced across the entire value chain. Few problems combine this much data, this much complexity, and this much real-world weight: get it right and a shelf stays stocked, a factory line doesn’t stall, food doesn’t spoil in a warehouse before it’s sold. Get it wrong, and it shows up in actual losses, for some of the largest retail and manufacturing brands in the world. We’ve grown for 76 consecutive quarters straight, and it’s still accelerating. The first half of 2026 was the strongest in the company’s history. We’re a team of 2,000+ people, headquartered in Helsinki, with offices across Europe, North America, and Asia-Pacific. In response to our fast growth, we're looking for a Product Engineer to help reinvent how RELEX builds and ships forecasting models. As a team, we own forecasting end to end for our retail and wholesale customers — both the new plugin-based models we're building and the models already running in production. We're reinventing how RELEX builds and ships forecasting, moving from a small number of monolithic models to a growing library of purpose-built, plugin-based ones, used by 400 to 500+ customers. This role sits at the core of that. What we need you to do and be Bring your ideas. Challenge ours. Grow with us. • You will design, build and improve our plugin-based forecasting models end to end: feature engineering, testing, and iterating on performance in live customer environments • You will take forecasting problems from business need to a working model running for a customer, with real owners

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