Senior Java/Kotlin Engineer - AI-Driven, Massive-Scale Backend

Allegro; Warszawa; Hybrid; PLN 163,000 - 232,000; Full time

Benefits offered by this job

Hybrid work (4/1)

Remote work up to 30 days/year

Well-located offices

MacBook Pro / Windows laptop

Fringe benefits cafeteria plan

English classes

Training budget

Volunteer day

Social events

Job summary

Allegro is seeking engineers for Offer Verification in Warsaw. You will design and optimize backend services in Kotlin, collaborating with Data Science and ML teams to deploy AI models and automated decision systems on a massive scale.

Join a hybrid team with modern tooling and a strong emphasis on engineering excellence, open-source infrastructure, and a focus on compliance and user protection.

Qualifications

• Commercial experience coding in Kotlin or Java.
• Strong coding quality and engineering practices for large-scale systems.
• Experience with deploying AI models in production environments.
• Growth mindset and cross-functional collaboration.
• English communication at B2 level or higher.

Responsibilities

• Design, build, and optimize large-scale backend systems using Kotlin and Java.
• Integrate ML models and AI agents to analyze images and read offer context for automated decisions.
• Develop tools to verify offers and ensure policy compliance to protect users.

Skills

Kotlin

Java

Distributed systems

AI/ML

English (B2)

Tools

Kubernetes

Docker

Consul

GitHub

GitHub Actions

Job description

Allegro is seeking engineers for Offer Verification in Warsaw. You will design and optimize backend services in Kotlin, collaborating with Data Science and ML teams to deploy AI models and automated decision systems on a massive scale.

Join a hybrid team with modern tooling and a strong emphasis on engineering excellence, open-source infrastructure, and a focus on compliance and user protection.