Web Developer (.NET)

As a Web Developer, you will play a key role in strengthening our internal capabilities for maintaining and developing our enterprise web platforms. Working across Sitefinity CMS and modern .NET technologies, you will collaborate closely with Global Marketing, IT, and internal stakeholders to build scalable solutions, enhance system integrations, and drive continuous improvement across our web ecosystem. This role offers the opportunity to contribute to backend architecture, content build and maintenance, establish development standards, and grow technical depth within a collaborative team environment.

Your role:

• Develop and maintain websites based on the Sitefinity CMS, ensuring high performance, Accessibility (WCAG 2.1-2.2), security, and SEO/SEM optimization
• Contribute to building modular, scalable solutions, including frontend components, with a strong focus on performance and maintainability
• Create and maintain integrations with external systems using REST APIs
• Contribute to backend and application architecture within .NET / ASP.NET environments
• Troubleshoot issues, implement fixes, and optimize system and database performance
• Collaborate with designers, content teams, and internal clients to deliver tailored web solutions
• Partner with external agencies to ensure the timely delivery and quality of joint projects
• Collaborate with technical teams on web infrastructure and DevOps processes (CI/CD, CDN, SSL, backups)
• Contribute to technical documentation and knowledge sharing to support team growth and learning
• Stay up to date with evolving web technologies, UX best practices, and security/compliance standards, and proactively introduce improvements

Your background:

• 3+ years of professional web development experience, preferably in enterprise environments
• Strong hands-on experience with C# and .NET / ASP.NET technologies
• Experience working with CMS platforms (Sitefinity preferred) and backend development
• Good understanding of frontend technologies (HTML, CSS, JavaScript) and familiarity with modern frameworks (e.g., Angular, React)
• Experience with database development and modeling, including structured content integrations (XML/XSLT)
• Experience integrating web applications with external systems using REST APIs
• Familiarity with Git, CI/CD pipelines, and basic DevOps processes (experience with Azure environments is a plus)
• Understanding of web best practices including information architecture, responsive design, content modeling, and metadata/tagging
• Ability to troubleshoot complex technical issues and contribute to continuous platform improvements
• Strong collaboration and communication skills
• Excellent command of English

Why join us?

You can grow at Aptiv. Aptiv provides an inclusive work environment where all individuals can grow and develop, regardless of gender, ethnicity or beliefs.

You can have an impact. Safety is a core Aptiv value; we want a safer world for us and our children, one with: Zero fatalities, Zero injuries, Zero accidents.

You have support. We ensure you have the resources and support you need to take care of your family and your physical and mental health with a competitive health insurance package.

Your Benefits at Aptiv:

• Private health care (Signal Iduna) and Life insurance for you and your beloved ones
• Well-Being Program that includes regular webinars, workshops, and networking events
• Hybrid work (min. 47 days/yr of remote work, flexible working hours)
• Employee Pension Plan paid by the employer (you get + 3,5% on each gross salary)
• Access to sports groups and Multisport card

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Aptiv is an equal employment opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, gender identity, sexual orientation, disability status, protected veteran status or any other characteristic protected by law.

Client-provided location(s): Krakow, Poland

Job ID: Aptiv-J000682628

Employment Type: OTHER

Posted: 2026-04-20T20:39:53