Senior Backend Engineer

Saxo Bank•Headquarters, KY

27d

About The Position

Are you enthusiastic about contributing to our digital activation agenda in a vibrant and international setting? Saxo Bank is seeking an 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.

Requirements

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: You have a good understanding of SQL and can navigate databases with ease. Similarly, 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). Additionally, 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: You're driven, ambitious, and ready to show what you can do in a dynamic environment.
Team Player: You thrive in collaborative settings and are ready to contribute to a team working on critical communication systems.
Testing: You 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 Haves

Backend Languages Proficiency: You are skilled in one or more backend languages such as .NET, C# or TypeScript
Event Schema Design: You possess 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

Responsibilities

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
Ensure high-quality, validated customer and event data.
Maintenance and extension of databases as MSSQL projects
Design and implement extensive testing suites for the full-stack application