Tech Lead B2B

Flightradar24 is one of the most successful growth-stage tech companies in Stockholm. Each month more than 80 million aviation enthusiasts visit Flightradar24, and our Commercial Services team works with some of the biggest names in aviation. We are looking for a Tech Lead to take ownership of the engineering efforts behind our full B2B product portfolio.

Opportunity

Flightradar24 is the world’s definitive source of flight data. While we lead the market in tracking the sky, our next frontier is to become the operational intelligence layer for the aviation industry.

We are transitioning from a data-provider to an essential operational partner. We don't just track flights; we provide the predictive insights that allow airlines, airports, and manufacturers to increase efficiencies, eliminate uncertainty and drive bottomline growth.

We are seeking a Tech Lead to be the founding engineer of our B2B tech-team. You will have a leading role in our transformation as we productise our raw data into B2B products. You will work together with our Sales team to define what we need to build. You will then take ownership of architecture and technology choices to deliver reliable, scalable and safe solutions. As we scale, you will have the opportunity to build a world-class engineering team.

The existing B2B portfolio includes, live data feeds, custom historical data exports, our public REST API service, and the business features of flightradar24.com. We have large volumes of ADS-B and other flight data, at different levels of granularity.

Own the engineering behind Flightradar24's entire B2B product portfolio, from customer-facing features to the underlying data pipelines and servicesDesign and build scalable backend services powering live data feeds, APIs, historical exports, and new commercial productsWork across the full technical stack where needed, from data lakehouse and databases through backend services to frontend applicationsBuild new capabilities on top of Flightradar24's real-time aviation data, transforming raw aircraft telemetry into valuable products for customersImprove the scalability, reliability, observability, and operational excellence of production systemsWork closely with platform, data, web, and infrastructure teams to integrate with the broader Flightradar24 ecosystem

About You

Have several years of experience building and operating production software at scaleAre comfortable working across different parts of a modern technology stack, from data platforms and databases to backend services and user-facing applicationsCan quickly understand complex existing systems, even when documentation is limited or the architecture has evolved over many yearsBalance pragmatic delivery with thoughtful engineering and know when to optimize and when to keep things simple

Required Technical Competence

Strong experience designing and building production fullstack systemsExperience working with modern cloud platforms, preferably AWSSolid understanding of databases, distributed systems, and data architectureExperience with APIs, event-driven systems, streaming platforms, or large-scale data processingComfortable working across multiple technology stacks and learning new technologies when neededStrong understanding of reliability, observability, testing, and production operations

Current tech stack

Web: PHP & Laravel & VueBackend & Data: C++, Python, GoCloud & Data Platform: AWS (S3, Glue/Spark, Airflow/MWAA, Athena, MSK/Kafka)Streaming & Messaging: Kafka, RabbitMQDatabases & Storage: SQL/NoSQL systems (e.g., MySQL/MariaDB/Postgres, Redis, DynamoDB, Hazelcast)DevOps & Platform: Docker, Kubernetes/EKS, Terraform

Flightradar24 started as a hobby project in 2006 when two Swedish aviation geeks decided to build a network of ADS-B receivers in Northern and Central Europe. In 2009 we opened up the network, and made it possible for anyone with an ADS-B receiver to upload data to the network. Many parts of the world were quickly covered, but the quest to provide global ADS-B coverage is still ongoing.

Flightradar24 at a glance

Largest ADS-B network in the world with over 55,000 connected receivers5+ million users per day100+ million app downloads