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Expert IT .NET Software Developer (m/f/d)

Role overview

Qualifications

  • University degree in IT or a technical field
  • Professional experience with .NET and C#
  • Strong knowledge of Microsoft SQL Server / T-SQL
  • Experience with version control systems such as Git

Responsibilities

  • Design, develop, and optimize scalable software solutions
  • Propose and define efficient, scalable technical solutions
  • Use AI-driven tools to optimize coding, debugging, and testing
  • Collaborate with cross‑functional teams to deliver project objectives

Key facts

Hard skills

Other skills

  • Teamwork
  • Communication
  • Solutions Focused

About the company

LEONI logo

LEONI

  • Automotive Manufacturing
  • 10,001+
LEONI is a global provider of products, solutions and services for energy and data management in the automotive industry. The group of companies has around 86,000 employees in 21 countries and generated consolidated sales of EUR 3.9 billion in 2025 (excluding the former Automotive Cable Solutions division). The partnership between LEONI and Luxshare Group has been effective since mid-2025. LEONI's largest customer group comprises the global car, commercial vehicle and component supply industry. The company is one of the world's largest suppliers of complex wiring systems and customer-specific cable harnesses. It’s value chain also comprises related components, from development to production. As an innovation partner with distinctive development and systems expertise, LEONI supports its customers on the path to increasingly sustainable and connected mobility concepts, from autonomous driving to alternative drives as well as charging systems. To this end, LEONI develops wiring systems that reduce complexity and enable higher levels of automation through zonal architecture, for example. Imprint: https://www.leoni.com/en/imprint/ Privacy statement: https://www.leoni.com/en/data-protection/

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Job description

Company Description

LEONI is a global provider of products, solutions, and services for power distribution and connectivity in the automotive industry. The Group employs approximately 95,000 people across 23 countries and generated consolidated sales of approximately EUR 3.9 billion in 2025, excluding the former Automotive Cable Solutions division.

With a 74.9% ownership stake in LEONI, LUXSHARE is both the company’s majority shareholder and a strategic partner, actively supporting and enabling LEONI’s long-term growth and success while contributing to its strategic direction.

LEONI’s customer base spans leading global automotive OEMs, commercial vehicle manufacturers, and component suppliers. 

Join us and help drive the transformation of the automotive world

Job Description

Shape the future of enterprise applications with modern .NET technologies. As an Expert .NET Software Developer, you will design, develop, and optimize scalable software solutions while leveraging AI-powered development tools to enhance coding efficiency, quality, and innovation. Working closely with cross-functional teams, you will contribute to the full software development lifecycle, applying best practices, modern architectures, and clean coding principles to deliver reliable business solutions.

  • Develop software applications according to specifications and project requirements.
  • Propose and define efficient, scalable technical solutions.
  • Use AI-driven tools to optimize coding, debugging, and testing
  • Maintain, optimize, and enhance existing applications.
  • Collaborate with cross‑functional teams to deliver project objectives.
  • Apply coding standards and best practices to ensure clean, modular, and well‑structured code.

Qualifications

  • University degree in IT or a technical field.
  • Professional experience with .NET and C#.
  • Strong knowledge of Microsoft SQL Server / T-SQL.
  • Experience with version control systems such as Git
  • Experience using Azure DevOps—pipelines, repositories, and boards
  • Effective use of AI-powered coding assistants and tools
  • Solid understanding of object‑oriented programming (OOP) concepts.
  • Fluent English.
  • Experience with the Angular framework is considered an advantage
  • Teamwork skills, good communication, and a solution‑oriented mindset.

Additional Information

People of all genders are always meant equally; for linguistic simplification and better readability, only the masculine form is used in the text.
LEONI processes your application data in an IT-system that is consistent across the company and uses Foreign Service providers. By sending your application, you agree to this procedure. LEONI ensures the compliance with data protection. 

LEONI Wiring Systems RO S.R.L.

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