Service Engineer (m/w/d) / EDI, E-Invoicing

Salary: 53.000 - 93.000 € per year

Requirements:

Completed apprenticeship or university degree in IT, Computer Science, Engineering, or a related field, or equivalent practical hands-on experience, with several years of experience in EDI, E-Invoicing, or B2B/system integration environments

Strong knowledge of EDI standards (e.g., EDIFACT, XML, ANSI X12, VDA), communication protocols (e.g., AS2, OFTP2, SFTP, HTTPS, APIs, Webservices), and ERP/B2B integration systems (e.g., SAP IDoc, Oracle, Microsoft Dynamics)

Good understanding of E-Invoicing frameworks (e.g., Peppol, ZUGFeRD, XRechnung, FatturaPA or similar) and related regulatory requirements

Strong analytical, structured, and detail-oriented working style combined with high customer orientation, strong communication skills, and the ability to manage multiple priorities and projects in parallel

Proactive, solution-oriented, and hands-on mindset with the ability to work independently, take ownership, and continuously develop expertise in EDI, E-Invoicing, and integration technologies

Very good English skills (spoken and written); good German skills required for the Erfurt location; additional languages such as French, Spanish, or Italian are a plus

Responsibilities:

Acting as the main technical contact for customers across incidents, service requests, and change requests, ensuring stable and efficient operations

Managing and supporting EDI and E-Invoicing integrations, including configuration, maintenance of mappings, workflows, and partner connections

Analyzing, troubleshooting, and resolving integration issues while performing root cause analysis and ensuring sustainable fixes

Supporting onboarding of new business partners, including setup, testing, and validation of message flows across EDI and E-Invoicing processes

Working with EDI standards and protocols (e.g., EDIFACT, ANSI X12, XML, SAP IDoc, VDA, AS2, OFTP2, APIs) and E-Invoicing frameworks (e.g., Peppol, ZUGFeRD/XRechnung, FatturaPA)

Monitoring production environments and driving improvements in stability, performance, automation, and operational efficiency

Collaborating closely with internal teams (Product, Development, Infrastructure, Project Management) and ensuring proper documentation and knowledge sharing

Technologies:

Cloud

ERP

IDoc

Mobile

Oracle

SAP

WebServices

XML

Support

More:

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, including Adidas, Bayer, SAP, BNP Paribas, Goldman Sachs, T-Systems, Swarovski, and UPS, as well as governmental agencies and major players across the world. Privately owned and founder-managed for over thirty years, we are 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, we operate locally and think globally. Our teams are organized across borders and are highly integrated, creating a multicultural, multilingual, and engaging workplace. We offer mobile working and flexible working time, collaborative and diverse company culture, flat hierarchies, development opportunities, international cross-site collaboration, modern dog-friendly offices, and company-paid health insurance, public transportation, lunch vouchers, and further benefits. This role is based in Timisoara, Rumänien and Erfurt, Deutschland, and we are committed to equal employment opportunity. We look forward to getting to know you.

last updated 36 week of 2026