Senior Platform Engineer (Backend + Data Engineering)

Safemind AB; Stockholms kommun; On-site; SEK 700,000 - 900,000; Full time

Benefits offered by this job

Opportunity to impact a global service

Modern office in downtown Stockholm

Flexible work environment with free beverages and snacks

Job summary

A leading aviation data service provider in Stockholm is seeking a Senior Platform Engineer proficient in data engineering and cloud technologies. This role involves building and maintaining scalable data solutions on AWS, enhancing existing systems for high-volume data processing, and working within a diverse team. Ideal candidates have strong backgrounds in C++, Python, and data architectures, and will significantly impact services used by millions worldwide. A modern office and flexible work environment are offered.

Qualifications

• Several years of hands-on experience building and operating production systems.
• Strong experience with software development in C++, Python, Go, or Rust.
• Experience with data engineering architectures for ingestion and transformation.
• Solid understanding of databases and query performance.

Responsibilities

• Building and maintaining backend services for high-volume data processing and APIs.
• Designing and improving data ingestion and streaming.
• Refactoring and enhancing existing services and infrastructure.
• Operating and improving cloud-based platforms, primarily AWS.

Skills

C++

Python

Data Engineering

AWS

Cloud-based platforms

Event-driven architectures

Reliability

Observability

Tools

SQL

NoSQL systems

Kafka

Airflow

Job description

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.

About the role

We are looking for a Senior Platform Engineer with Data Engineering skills, 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

• Building and maintaining backend services for high-volume data processing and APIs
• 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
• Backend services: C++ and Python
• Cloud & Data Platform: AWS (S3, Glue/Spark, Airflow/MWAA, Athena, MSK/Kafka, Lambda)
• Databases & Storage: SQL/NoSQL systems (e.g., MySQL/MariaDB/Postgres, Redis, DynamoDB, data lake/warehouse patterns)
• Engineering practices: Infrastructure as Code, CI/CD, linting, unit tests,
  integration tests

About you

• Has several years of hands-on experience building and operating production systems
• Strong experience with software development in C++, Python, Go, Rust, (or similar)
• Strong experience designing and operating production backend systems
• Experience with data engineering architectures for ingestion and transformation
• 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
• 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