Become Implementation Specialist (m/f/d) – EDI at Retarus.
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Retarus is a worldwide provider of cloud-based messaging solutions at enterprise scale. We serve over 40% of the companies listed on the S&P Global 100, e.g. Adidas, Bayer, SAP, BNP Paribas, Goldman Sachs, T-Systems, Swarovski & UPS, as well as governmental agencies and major players in markets across the world. Privately owned and founder-managed for over thirty years, Retarus is customer-oriented, stable, a fair employer, and a strategic business partner with a long-term vision. With some 500 employees in 19 offices on four continents, Retarus operates locally and thinks globally: our teams are organized across borders and are highly integrated. This makes Retarus a multicultural, multilingual, and engaging workplace. We are committed to creating a diverse and dynamic environment for our employees, with generous compensation, time off, and a global, collaborative workplace.


What we offer
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- Mobile working and flexible working time
- Collaborative, diverse company culture and superior team spirit
- Flat hierarchies and great feedback culture
- Development opportunities & career perspective
- International business & cross-site collaboration
- Modern, dog-friendly offices with nice amenities
- Company-paid health insurance, public transportation, lunch vouchers and further benefits




What you´ll do
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- Manage and implement customer projects for EDI, E-Invoicing and IDP services, including design, configuration, testing, and onboarding of trading partners
- Translate business requirements into technical specifications and coordinate solutions with internal teams (Product Management, Project Management, Infrastructure Services)
- Configure and validate common EDI mappings and workflows (e.g., Order (ORDERS), Order Confirmation (ORDRSP), Delivery Schedule(DELFOR/DELJIT), Delivery Notification (DESADV), Invoice (INVOIC) etc. )
- Support E-Invoicing onboarding in line with legal and market-specific standards (e.g., Peppol, FatturaPA, ZUGFeRD/XRechnung)
- Configure IDP environments and setups for new customers
- Ensure compliance with security and audit requirements (e.g., ISAE 3402, GDPR)
- Perform end-to-end testing with customers and coordinate smooth handover to operations
- Act as a key technical contact for customers during the implementation phase
- Identify opportunities for service enhancement and process optimization




What you'll need
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- Knowledge of EDI standards (EDIFACT, XML, ANSI X12, VDA) and communication protocols (X400, AS2, SFTP, OFTP2, HTTPS, Webservices, APIs)
- Experience with E-Invoicing frameworks (Peppol, ZUGFeRD, XRechnung, FatturaPA or similar)
- Knowledge of technical methodologies and frameworks
- Familiarity with ERP/B2B integration (e.g., SAP IDoc, Oracle, Microsoft Dynamics)
- Excellent German and English language skills, both written and spoken (C1 level or native) 
- Strong analytical skills and structured, detail-oriented working style
- High customer orientation and excellent communication skills
- Ability to manage multiple projects and deadlines in parallel
- Creative problem-solving and solution-focused mindset
- Interest in staying up to date with emerging EDI standards, E-Invoicing regulations, and integration technologies
- Self-motivated, able to work independently, and take ownership of assigned projects




What you can expect
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At Retarus, you will work on impactful and dynamic projects, with real opportunities to make a difference. Our customers are leaders across diverse industries, with constantly evolving needs and high expectations. You’ll be working with cutting-edge technology and great creative leeway to meet customers’ needs – and the projects you work on will be deployed globally. Workin