Andersen is hiring a Mulesoft Developer to support a user-focused eCommerce platform for pre-owned vehicle sales, enhancing customer experience and enabling a modern, scalable digital marketplace.  The customer is a progressive, diversified, and sustainable business group focused on delivering customer excellence and guided by strong core values. The organization provides superior experience in the automotive and related sectors through high-value products and services. Its broad portfolio, developed in partnership with leading global brands, enables access to advanced technology and enhanced solutions tailored to customer needs.  The project is focused on designing, developing, and deploying a user-centric eCommerce platform for pre-owned vehicle sales. The goal is to enhance customer experience, strengthen brand engagement, and support online revenue growth by providing a modern, convenient digital marketplace.  Responsibilities: - Creating, building, and maintaining integrations (APIs, connectors, flows) using MuleSoft Anypoint Platform components (Studio, Runtime Manager, API Manager). - Developing and managing APIs, ensuring governance, monitoring, security, and adherence to API-led connectivity principles. - Optimizing integrations for scalability, reliability, and performance. - Performing unit testing, code reviews, and ensuring high-quality delivery. - Creating detailed technical documentation for integrations, processes, and procedures. - Diagnosing and resolving integration issues and defects.  Must-haves: - Commercial experience with MuleSoft for 3+ years. - Experience with Java. - Strong knowledge of Anypoint Platform (Mule Runtime, API Manager, Exchange, CloudHub). - Experience in custom connector development. - Hands-on experience in API development and support (REST, SOAP). - Solid experience with DataWeave. - Good understanding of system integration principles and patterns (API-led connectivity). - Experience working with HTTP, JMS, FTP/SFTP, and databases. - Knowledge of security fundamentals (OAuth 2.0, JWT, SSL/TLS). - Experience with version control systems (Git). - Level of English – from Upper-Intermediate and above.  Nice-to-Haves: - MuleSoft Certification (Developer or Architect). - Experience with CI/CD pipelines, Docker, Kubernetes. - Experience integrating enterprise systems (Salesforce, SAP, Oracle, etc.). - Understanding of microservices architecture and cloud-based solutions.  Reasons why this job would be interesting to you: - Experience in teamwork with leaders in FinTech, Healthcare, Retail, Telecom, and others. Andersen cooperates with such businesses as Samsung, Siemens, Johnson & Johnson, BNP Paribas, Ryanair, Mercedes, TUI, Verivox, Allianz, T-Systems, etc.. - The opportunity to change the project and/or develop expertise in an interesting business domain. - Job conditions – you can work both fully remotely and from the office or can choose a hybrid variant. - Guarantee of professional, financial, and career growth! The company has introduced systems of mentoring and adaptation for each new employee. - The opportunity to earn up to an additional 1,000 USD per month, depending on the level of expertise, which will be included in the annual bonus, by participating in the company's activities. - Access to the corporate training portal, where the entire knowledge base of the company is collected and which is constantly updated. - Bright corporate life (parties / pizza days / PlayStation / fruits / coffee / snacks / movies). - Certification compensation (AWS, PMP, etc). - Referral program. - English courses. - Private health insurance and compensation for sports activities.  Your personal data is protected in accordance with GDPR regulations. Learn more: https://andersenlab.com/privacy-policy https://andersenlab.com/privacy-policy/pl  Join us!