backend developer in telecommunications

Polkomtel operates in the telecommunications industry.

• Develop backend applications in Kotlin or Java;
• Work with PostgreSQL databases, including simple queries and triggers;
• Maintain and develop integrations with JavaScript/TypeScript frontends;
• Participate in integration and performance testing;
• Administer Linux systems through basic diagnostics, network handling, and process management;
• Work with Nginx/OpenResty and write Lua scripts;
• Collaborate with DevOps and SysAdmin teams on application deployments.

• Very good knowledge of Kotlin or Java;
• Basic knowledge of JavaScript/TypeScript;
• Ability to work with SQL databases, including PostgreSQL;
• Experience working with Linux commands, processes, and basic networking;
• Willingness to learn and work with new technologies such as Lua and OpenResty;
• Nice to have: basic knowledge of BGP, HTTP, and HTTP Caching, Spring Boot, Hibernate, Ansible, Docker.

• Employment under an employment contract or B2B contract;
• Access to a training platform;
• Benefits package including a Multisport card, medical care at LuxMed, life insurance, and employee offers;
• Funding for activities organized by sports and interest sections.