Senior Integration Engineer – SAP, Enterprise Interfaces

Glückliche Gäste GmbH

Senior Integration Engineer building integration domains for Personal.manager using NodeJS and TypeScript. Involving integration with SAP systems and event-based architectures, either remotely or in St.

Posted 5/4/2026full-timeRemote • 🇩🇪 GermanySeniorWebsite

Tech Stack

Tools & technologies

CloudGroovyKafkaNode.jsPostgresRabbitMQTypeScript

About the role

Key responsibilities & impact

You will build the integration domain of the Personal.manager (PM) as an engineer — not merely as a middleware configurator.
REST endpoints for master data and lookups, and event- and webhook-based output for transactional data (absences, time entries, shift schedules, entitlements, payroll-relevant status changes).
DB outbox pattern, worker logic, retry and dead-letter handling.
Integration with EMQX as an internal event bus.
Versioned payload contracts and an auditable integration history.
Implement flows programmatically: custom scripts, adapter logic, and transformations. Keep PM ↔ SAP mappings testable and versioned.
Build clear error channels and perform technical coordination with our customers' SAP teams.

Requirements

What you’ll need

You write code daily.
You routinely build REST APIs and event-driven integrations in Node.js/TypeScript (or a comparable stack).
You are familiar with PostgreSQL.
You have hands-on experience with the tools of robust integrations: outbox pattern, idempotency, retry strategies, dead-letter queues, webhooks, MQTT/AMQP brokers (EMQX, RabbitMQ, Kafka, etc.), structured logging, correlation IDs, and versioned contracts.
You think of interfaces as systems with clear contracts.
An integration is not “finished” for you until it runs unattended overnight, recovers from errors, and makes the events transparent.
Especially valuable: experience with SAP Integration Suite (Cloud Integration / CPI), particularly its programmatic extension points (Groovy scripting, custom adapters, custom flow logic).
Experience with regulated customer environments, DMZ gateways, and audit-compliant logging.
Experience with SaaS platform architectures, API design, and event-driven architectures.

Benefits

Comp & perks

100% remote, hybrid, or on-site in St. Wendel.
Competitive salary reflecting experience and responsibility.
30 days vacation.
Modern office with a shower, washing machine, and an espresso machine.

ATS Keywords

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Hard Skills & Tools

Node.jsTypeScriptREST APIsPostgreSQLoutbox patternidempotencyretry strategiesdead-letter queueswebhooksSAP Integration Suite

Soft Skills

technical coordinationproblem-solvingattention to detailsystem thinking