Channels is hiring a
Senior Java Developer in Poland

Summary

We are looking for an experienced developer to improve and build new functionalities for our Channels app and its CPaaS project. The candidate will work in a small team, design backend architecture on AWS cloud, and collaborate with cross-functional teams. Required skills include experience in building web applications, Java and Kotlin, object oriented concerns and design patterns, and Quarkus. Responsibilities include designing and implementing new functionalities, writing tests and documentation, and collaborating with peers. Bonus points are given for familiarity with Quarkus and VoIP-related technologies. Benefits include private healthcare, 26 days of paid leave, and a remote-first approach.

Requirements

• A few years of experience building web applications with a focus on performance, scalability and security
• Familiarity with web technologies like REST APIs, OAuth
• Experience in working and collaborating with diverse teams in a dynamic, rapid growth environment
• Decent knowledge of Java and Kotlin (min. 3 years of experience)
• Good knowledge of object oriented concerns and design patterns
• Good knowledge of Java libraries and frameworks, mainly Quarkus

Responsibilities

• Designing and implementing new functionalities according to business requirements, together with unit and integration tests
• Writing scalable tests, release plans, and end user documentation
• Collaborate with cross-functional teams to gather requirements
• Collaborate with peers to write, review and provide feedback on technical design proposals

Preferred Qualifications

• Familiarity with Quarkus
• Experience with VoIP-related technologies like WebRTC or FreeSWITCH

Benefits

• Private healthcare
• 26 days of paid leave (per year)
• Remote-first approach (100% remote, flexible schedule)