Senior Data Engineer

Flightradar24 is one of the most successful growth-stage tech companies in Stockholm. Each day more than 5 million aviation enthusiasts visit Flightradar24 (app/website) and our Commercial services team has many of the biggest names in aviation on its customer list.

We are looking for a Senior Data Engineer, who can quickly understand existing systems, work independently, and deliver value from day one. You will play a key role in evolving and improving our data platform, working closely with other engineers and stakeholders. You will be part of a data engineering team responsible for designing, building, and operating scalable data solutions in AWS. The work includes both hands-on development and architectural decision-making. The position requires that you are able to work in Stockholm, Sweden.

What you’ll do

Your responsibilities include

• Designing and improving data ingestion, streaming, and event processing (batch and real-time)
• Refactoring and enhancing existing services, pipelines, and infrastructure
• Implementing robust data collection, transformation, and storage solutions
• Operating and improving cloud-based platforms (primarily AWS)
• Improving observability, reliability, and operational tooling for production systems
• Contributing to best practices around CI/CD, testing, code quality, and documentation
• Collaborating with software engineers, data engineers, and analysts to deliver reliable data products

Current tech stack

• Cloud & Data Platform: AWS (S3, Glue/Spark, Airflow/MWAA, Athena, MSK/Kafka, Lambda)
• Streaming & Messaging: Kafka (or similar), RabbitMQ
• Databases & Storage: SQL/NoSQL systems (e.g., MySQL/MariaDB/Postgres, Redis, DynamoDB, data lake/warehouse patterns)
• DevOps & Platform: Docker, Kubernetes/EKS, Terraform
• Engineering practices: Infrastructure as Code, CI/CD, linting, unit tests, integration tests

• Experience with data engineering architectures for ingestion and transformation
• Several years of hands-on experience building and operating production systems
• Experience working with cloud-based platforms, preferably AWS
• Solid understanding of databases (warehouses, OLTP/OLAP concepts, query performance)
• Experience with event-driven or streaming architectures (Kafka or similar)
• Strong understanding of reliability, observability, and production operations

We also see that you...

• Are self-driven and comfortable making technical decisions independently
• Can quickly understand and work within an existing codebase and architecture
• Value clean code, testing, automation, and pragmatic engineering practices
• Communicate clearly and professionally in English

Bonus points

• Experience with Machine Learning concepts and data platforms supporting ML workloads
• Experience working with high-volume real-time telemetry or tracking data
• Domain knowledge in aviation data standards (e.g., ADS-B) or similar

More about Flightradar24

Flightradar24 is the leading flight tracking and aviation data provider, leveraging the world’s largest ADS-B network. Our B2C platform serves millions, while our B2B solutions empower airlines, airports, and aviation stakeholders with essential operational insights. All this is made possible thanks to our globally distributed network of 50,000+ radio receivers that feed real-time aircraft data into the Flightradar24 platform. Over a billion database entries are added each month and we are processing several years of historical data totalling many terabytes. Our proprietary flight tracking data is industry leading and even investigative government agencies from around the world rely on it for aviation accident investigations.

Benefits of working at Flightradar24 include:

• Opportunity to impact a service with millions of end users from all around the world
• Contribute to the value which Flightradar24 creates both for B2C and B2B but also for humanity.
• Modern office in the heart of beautiful downtown Stockholm, Sweden
• Being part of a diverse team
• Flexible and social work environment with free beverages, fruit, and snacks

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