Software Engineer 2 (Java/Kotlin/Python) - Search Relevance

Location: Warszawa, Poland; hybrid 4/1 model with 30 days of occasional remote work

Salary: PLN 14,600–20,825 per month under an employment contract, plus an annual performance- and company-results-based bonus.

Company

hirify.global operates a large-scale ecommerce platform and develops search, data, and software systems used by millions of shoppers.

What you will do

• Build and scale low-latency online search services connecting queries with accurate offers from a catalog of hundreds of millions of products.
• Develop offline processing and machine learning pipelines using Python, Apache Airflow, and Google Cloud Platform.
• Collaborate with research and data science teams to deploy ranking models.
• Build automated evaluation pipelines powered by Large Language Models.
• Experiment with Generative AI and semantic search features.
• Contribute to reliable backend solutions, code reviews, knowledge sharing, and problem solving for millions of active users.

Requirements

• Professional coding experience in Java, Kotlin, or Python.
• Solid backend engineering foundation and understanding of clean architecture.
• Openness to working at the intersection of backend engineering and AI/ML.
• Commitment to code quality and reliable solutions, including active knowledge sharing during code reviews.
• Analytical, problem-solving approach to complex challenges affecting millions of active users.
• English proficiency at least B2.

Nice to have

• Familiarity with or curiosity about machine learning concepts, data pipelines, Python, Apache Airflow, GCP, LLMs, or semantic search.

Culture & Benefits

• Flexible working hours in the hybrid model, with start times between 7:00 and 10:00.
• 30 days of occasional remote work.
• MacBook Pro or equivalent Dell equipment and required accessories.
• Cafeteria benefits including medical, sports, lunch packages, insurance, and purchase vouchers.
• Paid English classes, training budget, internal learning platform, hackathons, and inter-team tourism.
• Autonomous teams, knowledge sharing, modern developer tools, an additional volunteering day, and social events.

Hiring process

• Send a CV to apply.