Senior Kotlin Developer (f/m/x)

Sii; Poznań, Szczecin; In loco; PLN 180.000 - 240.000; Tempo pieno

Descrizione del lavoro

Sii in Poznań, Poland, is seeking an experienced Senior Kotlin Developer to join a modern backend platform. You will design, implement, and optimize scalable microservices, work with external systems, and influence technical decisions to boost performance and reliability.

You will collaborate with cross-functional teams to deliver high-quality software, participate in code reviews, and mentor colleagues while adopting best practices and modern development tools.

Competenze

• Minimum 3 years of professional software development experience with Java and Kotlin.
• Solid experience designing and developing microservice-based applications.
• Advanced English skills.

Mansioni

• Design, develop, and enhance scalable backend services using Kotlin.
• Collaborate with product, engineering and other teams to deliver technical solutions.
• Monitor performance and identify opportunities to improve scalability, stability, and efficiency.
• Contribute to code reviews and technical discussions to maintain high standards.
• Support continuous improvements in development practices and code quality.
• Share knowledge and mentor team members.

Conoscenze

Kotlin

Java

Microservices

English

Strumenti

Kubernetes

AWS

Apache Kafka

React.js

TypeScript

Descrizione del lavoro

Introduction to offer

We are looking for an experienced Senior Kotlin Developer to join a team working on a modern and complex software platform. You will focus on developing scalable backend solutions and microservices, implementing new functionalities, and integrating the platform with external systems. You will also have the opportunity to contribute to technical decisions and improve the performance, reliability, and overall quality of the solution.

Your tasks

• Designing, developing, and enhancing scalable backend services using Kotlin
• Working closely with product, engineering, and other teams to deliver effective technical solutions
• Monitoring application performance and identifying opportunities to improve scalability, stability, and efficiency
• Contributing to code reviews and technical discussions to maintain high development standards
• Supporting continuous improvements in development practices and overall code quality
• Sharing technical knowledge and supporting other team members in their professional growth

Requirements

• At least 3 years of professional experience in software development, particularly with Java and Kotlin
• Solid experience in designing and developing microservice-based applications
• Hands-on knowledge of Kubernetes and containerized application environments
• Practical experience working with AWS and Apache Kafka
• Good understanding of application performance, scalability, and reliability principles
• Ability to collaborate effectively with developers and other cross-functional team members
• Advanced English skills

Nice-to-have requirements

• Experience with React.js and TypeScript