Data Scientist

📊 Senior Data Scientist Are you passionate about building production-grade optimization models and solving complex business problems with data? We are looking for a Senior Data Scientist for an exciting consulting assignment in Stockholm. You'll join a cross-functional team where you'll help develop, maintain, and scale advanced optimization solutions in a modern cloud environment. 🚀 About the Role As a Senior Data Scientist, you will work with advanced optimization, machine learning, and analytics to improve business processes and decision-making. You will collaborate closely with Data Scientists, ML Engineers, Product Managers, and other stakeholders to deliver scalable, production-ready solutions. Key Responsibilities Develop, maintain, and improve production-grade optimization models. Build and enhance Linear Programming and Mixed Integer Programming solutions. Prepare, transform, and integrate data from multiple sources. Develop robust data wrangling and aggregation pipelines. Deploy, monitor, and maintain machine learning solutions in Google Cloud Platform. Implement MLOps best practices and CI/CD pipelines. Perform data analysis and create insights to support business decisions. Present analytical findings and collaborate with stakeholders to translate business needs into technical solutions. Work in Agile cross-functional teams to continuously improve performance and scalability. ✅ Requirements Strong experience with Linear Programming and/or Mixed Integer Programming. Proven experience developing and deploying machine learning solutions in cloud environments, preferably Google Cloud Platform (GCP). Excellent Python programming skills with experience writing clean, modular, and production-ready code. Strong SQL skills for data manipulation and analysis. Experience with MLOps, CI/CD, and production deployments. Experience working with DBT and data transformation. Strong analytical and problem-solving skills. Experience working in Agile environments. Excellent communication and collaboration skills. Professional proficiency in English. 🌟 We believe you are Analytical and solution-oriented. Comfortable working with complex datasets and optimization problems. A collaborative team player who enjoys sharing knowledge. Passionate about building scalable and reliable data solutions. 📍 Location: Stockholm 📅 Assignment Period: 2026-08-17 – 2027-03-31 🕒 Extent: Full-time (100%) 🏢 Work Model: Hybrid (up to 30% remote) Sway Sourcing är en innovativ rekryteringspartner som specialiserar sig på att matcha rätt talang med rätt företag – snabbt och effektivt. Vårt huvudfokus ligger inom Ekonomi, Administration, HR, Marknad och IT, men vi har även den breda expertis och flexibilitet som krävs för att leverera skräddarsydda rekryteringslösningar inom alla branscher. Trots att vi är en relativt ny aktör har vi redan byggt förtroende hos många av Sveriges största företag och arbetar både nationellt och internationellt. Med baser i Sverige och Spanien erbjuder vi en unik kombination av lokal expertis och global räckvidd. Vårt starka nätverk och djupa branschinsikter gör oss till en självklar partner för företag som vill ligga steget före i sin rekrytering.

Turn ship physics into software people actually use At Cetasol we build the monitoring and analytics platform that commercial fleets use to cut fuel consumption, understand how their vessels really perform, and stay on the right side of CII and EU MRV reporting. A growing part of that platform is predictive maintenance: catching when an engine, generator, thruster, or the vessel as a whole starts behaving differently than it should, before it becomes a failure. Getting there takes two things that rarely live in the same person: an understanding of the physics behind how these assets actually behave, and the engineering skill to ship that understanding as a working product. We're looking for that person. What you'll do Build physical and data-driven models of vessel assets — engines, generators, thrusters, and the ship as a whole — that capture what "normal" operation looks like Detect when an asset deviates from its expected behaviour, and trace that deviation back to the sensors and signals driving it Work with noisy, real-world sensor data from vessels: clean it, validate it, and decide what it can and cannot support Take your own models from notebook to production on AWS, and build the React interfaces where the results actually land in front of customers Own features end to end, with our UX designer, full stack developers and data scientist alongside you Help us decide where a first-principles model beats a statistical one, and where it doesn't What we're looking for The balance here is genuinely 50/50. You should be comfortable deriving a model and deploying it. On the modelling side: Strong applied mathematics, physics or engineering foundation — fluid dynamics, thermodynamics, control theory, numerical methods, or similar Experience with anomaly detection or condition monitoring on physical systems — knowing how to separate a genuine fault signature from normal operating variation Solid Python and the usual scientific stack; experience with time series and sensor data The judgement to know when a model is good enough and when it's fooling you On the engineering side: Practical experience building and running services on AWS Comfortable in React and modern frontend work — you don't need to be a specialist, but you should be able to build the view your model deserves Familiarity with the ordinary craft of software: version control, testing, code review, CI And: You explain technical work clearly to people who aren't specialists You're happy to sit somewhere between disciplines rather than in the middle of one We're open on years of experience. If you can do the work, the title follows. Nice to have Predictive maintenance or condition-based monitoring · maritime, automotive, aerospace or energy domain experience · digital twins or physics-informed machine learning · edge computing or embedded data collection Why Cetasol Shipping accounts for roughly 3% of global CO₂ emissions, and a meaningful share of that is avoidable through better operational decisions. The work here is technically interesting and the impact is measurable in tonnes of fuel. You'd be joining a small engineering team where your work is visible and your scope is wide. We're based in Gothenburg and work hybrid — we value time in the same room, without counting days.