Senior Backend Engineer (Recommendations Systems/ML)

TL;DR

Senior Backend Engineer (Recommendations Systems/ML): Building and optimizing ML-powered backend services for a music platform with an accent on data pipelines, APIs, and real-time serving infrastructure. Focus on architecting scalable solutions, debugging complex issues across distributed systems, and ensuring maintainability of production code.

Location: Hybrid role based in Berlin or London. Relocation support provided for Berlin.

Company

hirify.global is an artist-first platform empowering artists to build and grow their careers by connecting over 200 million users with music.

What you will do

• Make technical decisions considering cost, latency, complexity, and maintainability.
• Navigate distributed systems to build reliable, scalable solutions.
• Design and implement data pipelines, feature engineering, model training, and serving infrastructure.
• Set up monitoring, A/B testing, and metrics frameworks to measure real user impact.
• Debug complex issues across data pipelines, ML models, and distributed systems.
• Share knowledge through documentation, code reviews, and mentoring.

Requirements

• 4+ years software engineering experience with 1-2+ years building ML systems in production.
• Strong Scala knowledge (functional programming) and deep SQL skills for massive datasets.
• Cloud platform experience (AWS/GCP), containerization (Docker, Kubernetes), and familiarity with ML frameworks (TensorFlow, PyTorch).
• Experience with distributed data processing and ETL pipelines (Airflow, Spark).

Nice to have

• Python experience.
• Go experience.

Culture & Benefits

• Flexible work culture with hybrid options for collaboration and work from home.
• Extensive relocation support for Berlin including allowances, flights, temporary accommodation, and on-ground support.
• Creativity and Wellness benefit.
• Employee Equity Plan.
• Generous professional development allowance.
• Flexible vacation and public holiday policy with up to 35 days of PTO annually.
• Free German courses.