Senior Software Engineer (Java / Kotlin) - Product Page

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

Salary: PLN 18,850–25,900 per month under an employment contract, plus an annual performance-based bonus and a long-term discretionary incentive plan based on hirify.global.eu shares.

Company

hirify.global operates a large-scale ecommerce platform serving millions of customers through web, mobile, and desktop products.

What you will do

• Design, build, and optimize high-availability systems handling thousands of requests per second.
• Develop and maintain backend microservices for the checkout and purchase path, from design through deployment.
• Work with Java, Kotlin, Spring, MongoDB, GCP, microservices, and Airflow in a cloud-native environment.
• Partner with Product Managers to analyze requirements and deliver business initiatives across hirify.global.
• Develop tools based on Large Language Models and use AI to automate repetitive tasks.
• Participate in on-call rotations, maintain system reliability, and mentor less experienced colleagues.

Requirements

• At least 5 years of commercial experience building and maintaining complex, highly scalable systems.
• Strong proficiency in Java as the primary language and Kotlin, with a focus on reactive programming.
• Experience collaborating with Product Managers and analyzing business requirements.
• Frequent cooperation with other technical teams to deliver shared goals.
• Readiness to participate in a structured on-call rotation.

Nice to have

• Hands-on experience and advanced knowledge of MongoDB.

Culture & Benefits

• Flexible working hours, starting between 7:00 a.m. and 10:00 a.m., in a hybrid 4/1 model.
• 30 days of occasional remote work, annual performance bonus, and share-based incentive plan.
• Medical, sports, lunch, insurance, and voucher benefits through a cafeteria plan.
• Paid English classes, training budget, hackathons, internal learning platform, and inter-team tourism.
• MacBook Pro or equivalent Dell equipment, ergonomic offices, and an additional volunteering day.
• Autonomous team organization, knowledge sharing, modern developer tools, and opportunities to contribute to open-source and technical communities.

Hiring process

• Submit a CV to apply.
• Online meeting available to get to know the team and learn about office life.