Scala Developer

Job Title: Senior Full Stack Engineer (Backend-Focused)

Mode : Work from Office

Shifts: UK/US (Rotational)

Exp : 3 - 6 years

About the Role

Were looking for Full Stack Engineers with a backend focus who can help scale this mission-critical system. This is a complex, high-impact engineering role that goes far beyond CRUD apps — you’ll work with recommendation engines, data pipelines, and distributed systems deeply integrated into our ad infrastructure.

What You’ll Do

• Build and maintain distributed backend services in Scala, leveraging ZIO, Akka, and functional programming for real-time personalization and recommendations.
• Design and manage streaming pipelines using Akka Streams or ZIO Streams.
• Work with large-scale Postgres datasets and multi-system data pipelines involving SQS, SNS, and Kinesis.
• Partner with data scientists and product engineers to integrate recommendation logic into ad serving systems.
• Occasionally contribute to our Angular front end and Lua-based ad server logic.
• Deliver production-grade code with strong attention to scalability, observability, and maintainability.

Required skills:

Must-Have Experience:

• Production-grade backend development in Scala, with deep understanding of functional programming principles (ZIO, Cats, etc.)
• Experience with distributed systems, asynchronous processing, and streaming architectures.
• Proficiency in PostgreSQL and working with large-scale structured data.
• Hands-on experience with message queueing and event streaming systems like SQS, SNS, or Kinesis.
• Strong reasoning about user behavior, recommendation algorithms, and lifecycle event tracking.