Senior Backend Engineer (Kotlin/Java) — Low-Latency API & Security

Allegro; Warszawa; Hybrid; PLN 19,000 - 26,000; Full time

Benefits offered by this job

Well-located offices with modern tools

MacBook Pro / Dell workstation

Fringe benefits cafeteria plan

English classes

Training budget & hackathons

Volunteer day

Social events

Job summary

Allegro in Warsaw seeks a backend engineer to design and build high-throughput services in Kotlin/Java, focusing on API management, security, and data pipelines. You will collaborate with Data Scientists and ML Engineers to automate key processes and decisions.

Join a hybrid team with flexible hours, remote days, and a rich benefits package including English classes, training budgets, and volunteering opportunities.

Qualifications

• Commercial experience coding in Kotlin or Java, with eagerness to master Kotlin for new services.
• Value high-quality code and engineering best practices for massive-scale distributed systems.
• Excited to explore AI in daily work and solve complex challenges.

Responsibilities

• Build tools for API management, key and resource access control, and abuse detection to ensure platform compliance.
• Collaborate with Data Scientists and ML Engineers to automate decisions and processes.
• Develop high-performance backend microservices and leverage GCP data pipelines in a scalable way.

Skills

Kotlin/Java

AI tooling

Polish & English

Tools

Kubernetes

Docker

GitHub Actions

Consul

BigQuery

Airflow

Job description

Allegro in Warsaw seeks a backend engineer to design and build high-throughput services in Kotlin/Java, focusing on API management, security, and data pipelines. You will collaborate with Data Scientists and ML Engineers to automate key processes and decisions.

Join a hybrid team with flexible hours, remote days, and a rich benefits package including English classes, training budgets, and volunteering opportunities.