Senior Backend Engineer

Copenhagen, Denmark Are you enthusiastic about contributing to our digital activation agenda in a vibrant and international setting? Saxo Bank is seeking a n experienced Senior Backend Engineer to become a key member of our Digital Activation Analytics & Campaign Compliance team. In this position, you will play a crucial role in designing, developing, and maintaining our audience orchestration tool. This opportunity combines hands‑on development with strategic architectural duties to create scalable and robust solutions. The ideal candidate will possess a strong background in software development, martech technologies, and data engineering, with at least 5 years of experience in backend development for production‑grade systems. What We're Looking For A minimum of 5 years of backend development experience building and maintaining production‑grade backend systems Passion for Python: You love coding in Python and are always looking for ways to improve your skills. Knowledge of FastAPI practices and type safety is highly relevant for the role. SQL Savvy: Good understanding of SQL and experience with database migration patterns and modern deployment strategies in MSSQL is preferred. Databricks: Proven experience with Databricks and Data Lake in production settings. REST API Expertise: Strong experience building and consuming REST APIs or Webhook endpoints for event‑driven patterns. Event‑driven Architecture: Experience with Event‑driven architecture and ability to integrate through Kafka (topic subscription, message parsing). Basic understanding of data ingestion and processing workflows through Airflow‑DAGs is a plus. ETL: Develop and maintain scalable, efficient, and reliable ETL processes, establish best practices for data ingestion, storage, and processing. DevOps: Practical experience in app containerization and deployment configurations (Docker, Kubernetes, Helm Charts, Azure Pipelines). Extended experience with version control and CI/CD techniques is required. Solution Oriented: Driven, ambitious, and ready to show what you can do in a dynamic environment. Team Player: Thrive in collaborative settings and ready to contribute to a team working on critical communication systems. Testing: Follow best practices for testing applications at multiple levels: unit, integration and functional tests and can work effectively across staged environments. Knowledge of testing frameworks like Cypress, Vitest and Pytest is preferred. Nice to Have Backend Languages Proficiency: Skilled in one or more backend languages such as .NET, C# or TypeScript. Event Schema Design: Experience in designing and building event schema design, datasets, identities, and event structures. Martech: Understanding of the Adobe Experience Cloud tools like AJO, CJA is a plus. Experience with database‑agnostic ORM, prepared statements and microservices. What You'll Do Work on exciting projects that impact our communication systems. Take on full‑stack challenges and bring your creative ideas to life. Build and maintain backend services and APIs that connect internal systems. Apply best practices in API design (REST, data serialization, observability & testing). Extend FastAPI endpoints with response models, secure & parametric queries, as well as extensive API documentation. Apply database and query optimization techniques for efficient API integrations. Integrate Kafka topic subscriptions and dynamic parsing configurations in the event‑driven architecture. Ensure high‑quality, validated customer and event data. Troubleshoot ingestion failures and monitor data flows. Manage CI/CD pipelines for full‑stack applications with performance monitoring. Design containerization and orchestration manifests for the application. Maintenance and extension of databases as MSSQL projects. Design and implement extensive testing suites for the full‑stack application. Why Join Us? Gain hands‑on experience with real‑world projects. Be part of a team that values innovation and creativity. Opportunity to make a significant impact on critical systems. Vibrant and inclusive workplace where your ideas are valued and encouraged. If you're ready to take the next step in your development career and make a difference, apply now Show us your passion, and let's build something amazing together. When you work at Saxo, you become a Saxonian and part of a purpose‑driven organisation, where good ideas are always taken seriously, and where you can make a true impact. We are invested in your development, and you can expect a robust career from day one when you join Saxo – no matter which role you take on. You will join 2,500 other ambitious colleagues across 15 countries and become part of an international organisation. Working in Saxo, you will get to meet colleagues from many different cultures and backgrounds, and you should know that we value diversity and inclusion and see it as a genuine source of strength to drive growth, foster innovation and position us for long‑term success. We encourage an open feedback culture and supportive team environments enabling employees to grow and fulfil their career aspirations. When you bring passion, curiosity, drive and team spirit, your learning journey will be dynamic and your career opportunities in Saxo will be immense. At Saxo we don’t just offer a job – we offer an opportunity to invest in your future How to Apply Click here to create an account and upload your resume and a short motivation. We look forward to getting to know you better #J-18808-Ljbffr