Senior Backend Engineer
at Appsflyer
Warsaw, onsite, senior, full time, 5+ years
posted 11 Oct 2026
- Unit Testing
- PostgreSQL
- GraphQL
- Go
- Kafka
- Redis
- Node.js
- React
- Protobuf
- TypeScript
- Neo4j
- GCP
- CI/CD
- Integration Testing
- AWS
About the role
Posted: 2026-10-11
AppsFlyer is the market leader in the mobile attribution business. We provide analytical tools to help thousands of app developers and agencies reach decisions about where, when, and how to market their apps.
We do this by consuming enormous amounts of data and presenting it in useful (and cool!) ways that are actionable and provide real and immediate value to our customers.
We are looking for an experienced full-stack developer to join our Management team. The Management team manages a variety of services and tools, external and internal. Our missions include diverse business cases, a wide range of APIs, implementation of third-party services, and collaboration with multiple other teams in the company.
Our team uses technologies and frameworks such as (buzzword alert): Node.js, React, Go, AWS, GCP, Kafka, Neo4j, GraphQL, Protobuf, Redis, PostgreSQL, among others.
The Management team is part of the SaasLab group which owns the SaaS platform and control plane of AppsFlyer - the foundational layer that manages users, accounts, billing, API gateway, authentication, permissions, and business integrations. SaasLab’s systems serve as the backbone for every product and feature at AppsFlyer, handling millions of API calls daily and supporting thousands of enterprise customers worldwid
What you would do
- End-to-end development of AppsFlyer products and features, from front-end to back-end
- Collaborate with Product Designers, Product Managers and Software Engineers to deliver amazing products
- Build & ship features at high pace in a fast-moving AI development environment
- Design, develop, and maintain scalable backend and frontend systems.
- Develop complex applications using modern Full Stack technologies.
- Work with microservices, event-driven architectures, and distributed systems.
- Continuously learn and evaluate new technologies in the everlasting effort to perfect our products
- Contribute to a strong engineering culture of ownership, collaboration, quality, and continuous improvement
What You Have
- 5+ years of software development experience, with strong backend engineering skills
Read from job-boards.greenhouse.io, last seen 3d ago.