Senior Software Engineer (Java/Kotlin)

Quick Facts

• Role: Senior Software Engineer (Java/Kotlin)

• Focus: Kotlin-based backend engineering, scalable microservices, and AI-enabled automation

• Scale: 120M+ daily offer events

Description

Design, build, and optimize high-throughput distributed systems that process 120M+ daily offer events. Integrate AI capabilities into backend services to classify offer attributes, generate content, and transform unstructured data for automated decision-making. Shape vertical Electronics product experiences using Domain-Driven Architecture and help deliver features at massive customer scale.

Responsibilities

• Develop and scale Kotlin backend services

• Build scalable microservices and RESTful APIs with Spring Boot

• Integrate and operationalize AI capabilities within backend workflows

• Use Domain-Driven Architecture to evolve vertical product experiences in the Electronics domain

• Maintain high performance and engineering best practices in distributed systems

Requirements

• Commercial experience coding in Kotlin or Java (with eagerness to master Kotlin)

• Solid commercial experience with the Spring Boot ecosystem

• Experience building scalable microservices and RESTful APIs

• Strong focus on code quality and engineering best practices

• Openness to adapt to unfamiliar tech stacks (frontend is a plus)

• Ability to use AI-powered tools for daily coding, debugging, and research

• Polish and English communication skills (B2 level or higher)

Benefits

• Flexible working hours in a hybrid model (4/1), with occasional remote work (30 days)

• Annual bonus and long-term incentive plan (restricted stock units)

• Well-equipped offices and ergonomic work tools

• Choice of fringe benefits via a cafeteria plan (e.g., medical, sports, lunch, insurance)

• English classes related to the job

• Training budget, hackathons, and internal learning platform

• Additional day off for volunteering

• Social events and a supportive, autonomy-driven team culture