Senior Software Engineer

Are you an experienced engineer who loves shaping complex systems and making high-impact decisions? Do you enjoy working with Kotlin, Java, and Spring while building scalable, business-critical software?

Join a collaborative environment where your technical expertise, mentorship, and strategic thinking directly influence architecture and product quality. Work with us for a technology partner helping clients maximize business value, boost revenue, and optimize operations through modern, user-friendly IT solutions.

Key responsibilities

• Design and implement complex business logic in Kotlin/Java for insurance and finance systems.

• Break down large monolithic systems into modular, maintainable components.

• Collaborate with PMs, designers, and clients to define technical solutions.

• Mentor team members, lead technical discussions, and foster engineering culture.

• Influence technical strategy, architecture decisions, and coding standards.

• Participate in on-call duties and contribute to building high-availability systems.

Ideal candidate profile

• Strong experience with Kotlin, Java, Spring, and Hibernate.

• Solid architectural knowledge and experience designing scalable solutions.

• Experience working with large monolithic systems and breaking them into modular components.

• Ability to translate complex business requirements into technical solutions.

• Experience mentoring and guiding teams in technical decisions and best practices.

• Nice to have: background in insurance, finance, or banking and cross-domain collaboration (e.g., underwriting, triage).

• Comfortable participating in on-call rotations and building reliable systems.

• Fluent English (min. B2) and Polish

Conditions

Location: Remote (Poland)

Work Model: Fully remote

Employment Type: B2B

Engagement: 6 months, with a potential for extension

Start Date: ASAP

Salary: 110-170 PLN/h

Recruitment steps

1. Initial call with a KUBO recruiter

2. Interview with the client

3. Decision and feedback