Kotlin Software Developer

Quick Facts

• Role: Kotlin Software Developer

• Team: Agile, self-organized

• Work style: On-site in Hanover or flexible home office (about once per week in the office if mostly remote)

• Focus: Modernizing and developing online tax return and tax calculation code

Description

You will develop and modernize an online tax return and its tax calculation code within an agile, self-organized team. The role includes implementing income tax calculation, processing user inputs, calculating expected refunds and payments, and preparing data for the tax authority interface. You will also modernize the calculation module by translating legacy Groovy code into modern Kotlin.

Responsibilities

• Continue modernizing and developing the online tax return and the tax calculation code

• Implement income tax calculation and process user input data

• Calculate expected tax refunds and additional payments

• Prepare data for the tax authority interface

• Modernize the calculation module by translating legacy Groovy to modern Kotlin

• Collaborate with tax experts

• Maintain and work on large codebases, build helper tools, and support 2nd-level support when needed

Requirements

• Experience developing with Kotlin

• Knowledge of Java or Groovy is a plus

• Proficient with IntelliJ IDEA, Git, and Gradle

• Enjoys using AI coding tools such as GitHub Copilot or similar

• Ability to work constructively with legacy code and restructure complex code into logical parts

• Willingness to build helper tools when they add value

• Interest in intensive work in the tax domain

• Very good German language skills (at least C1)

Benefits

• Short decision paths and room for your own ideas

• Individual learning budget and time for lifelong learning