Backend Jobs in Cologne for English Speakers

Join an international sustainability certification organization in Cologne as a Student Assistant supporting certification body management and partner engagement. This role offers hands-on experience with data analysis, system management, stakeholder communication, and administrative support within a dynamic, diverse team focused on global …

We are seeking a full-time Software Engineer to join a leading cloud hosting company in Germany. The role offers remote working within Germany or hybrid/on-site options in locations including Munich, Cologne, Hamburg, or Berlin. The engineer will develop features, ensure code quality, …

A technology company in Germany seeks a full-time Frontend-Focused Software Engineer to develop new features, enhance system architecture, and maintain code quality. The role supports remote work within Germany, with options for hybrid or on-site work near major cities. The candidate will …

We are seeking a Sustainability Manager focused on Sustainable Marine Fuels at our headquarters in Cologne. In this role, you will lead the development and improvement of certification schemes for alternative marine fuels, working with international maritime stakeholders to support regulatory alignment …

Join a leading global certification organization focused on sustainable and traceable supply chains. As a Sustainability Manager for Alternative Marine Fuels based in Cologne, you will develop and enhance certification schemes, collaborate internationally across the maritime sector, and drive sustainable fuel innovation …

Join a Data Science team developing data-driven products and AI solutions to optimize sales and processes within a commercial context. This role involves designing and deploying machine learning models, collaborating across functional teams, and leveraging modern tech such as Python, SQL, Databricks, …

An innovative e-pharmacy company is seeking a Senior iOS Developer to lead the development and architectural design of their mobile platform. The role involves working on scalable and modular iOS app solutions, improving CI/CD pipelines, testing strategies, app performance, and collaborating across …

Join a leading European e-pharmacy as a Senior Android Developer to own and advance their Android application. This role involves driving app architecture, scalability, and long-term evolution using modern technologies like Kotlin, Jetpack Compose, and clean architecture principles. Collaborate with cross-functional teams, …

Join a global sustainability service provider based in Cologne offering environmental and social knowledge to support sustainable supply chains. This role supports the marketing team by creating and editing content for social media, newsletters, and presentations, executing marketing campaigns, and conducting research …

An international sustainability services provider in Cologne is seeking a student assistant to support their marketing team. The role involves creating and editing content for social media, newsletters, presentations, and other communication channels, assisting in marketing campaigns, basic visual and video design, …

Participate in a one-day hands-on Data Solution Design Workshop focused on data engineering and analytics. Learn to build a modern Data Platform using Data Vault 2.0 methodology and tools like Google BigQuery, dbt, and Looker Studio through an engaging project analyzing the …

An international team in Cologne is seeking a Student Assistant to support automation efforts in GIS and sustainability. The role involves supporting web application and dashboard development, geospatial data processing, and AI-driven research to advance deforestation-free supply chains. The position suits students …

Join an innovative international team in Cologne working on sustainable supply chains and environmental risk assessment. Support web application and dashboard development, geospatial data processing and analysis, and AI research. Ideal for students in geo-informatics, computer science, data science or related fields …

An innovative sustainability-focused organization in Cologne seeks a Student Assistant for their GIS & Sustainability team. The role involves reviewing scientific literature, processing and evaluating GIS and remote sensing data, preparing presentations, and supporting projects. Ideal candidates are enrolled students in relevant …

A company specialized in environmental and social sustainability is seeking a Student Assistant to join their GIS & Sustainability Team in Cologne. The role involves reviewing literature, processing GIS and Remote Sensing data, preparing presentations, and supporting project work. Candidates should be …

Join an innovative IoT connectivity company as a Senior Software Engineer focused on developing scalable and reliable application services and software components. Work involves managing CI/CD pipelines, writing tests, maintaining production systems, monitoring, incident and change management, and participating in on-call rotations. …

Join a leading European e-pharmacy in Cologne as a working student focused on data analytics for pricing strategies. Gain hands-on experience analyzing large datasets using Excel and R to drive data-driven pricing decisions in a fast-paced e-commerce environment. Support data scraping, improve …

Join a company revolutionizing workplace wellness with a platform connecting employees globally to fitness, mindfulness, therapy, nutrition, and sleep partners. Based in Cologne, this hybrid role involves generating and managing partner sales through high-volume outreach, full sales cycle management, and collaboration. The …

Join a leading European e-pharmacy as a Senior Platform Engineer to design, build, and enhance the Internal Developer Platform to improve developer experience, delivery speed, and operational reliability. Work collaboratively with cross-functional teams to create secure, observable, and production-ready platform solutions while …

A leading e-pharmacy in Europe is seeking a Senior Data Engineering Manager to lead a team focused on building data and AI products that deliver actionable business insights. The role involves hands-on work with technologies such as Azure, Databricks, DBT, Spark, SQL, …