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Senior Backend Software Engineer (m/f/d) (EN)
[15807]
We are currently looking for a freelance "Senior Backend Software Engineer (m/f/d)" for our client in the IT sector. Start: asap End:31.12.2026+ Capacity: Fulltime Location: remote We search for an experienced Software Engineer to drive key concepts in our backend. Core element of the backend is our open-source project "NeonBee". It is a reactive dataflow engine, a data stream processing framework using the Vert.x toolkit. Tasks: ·Drive topics around data persistence and consumption in SAP for Me backend ·Drive improvements around system connectivity and data exchange protocols (oData) ·Evaluate and improve tools to support operational efficiency, reliability and observerability ·Act as a Developer on Duty depending on calendar schedule during working time Must-have: ·Very experienced in software development for production applications in Java (11+) ·Understanding of reactive and asynchronous programming concepts ·Implementation of integration design patterns, especially in a microservices or event-driven architecture ·Building and tuning large-scale, high-performance web applications ·Experience with Vert.x (or similar e.g. Akka) ·Experience in SAP BTP ·Understanding of the OData specification (Open Data Protocol) ·Experience with Cloud Foundry, Kubernetes, Docker, or other container technologies ·Experience in OpenTelemetry, Prometheus, Grafana ·Experience in Helm chart authoring ·Strong problem-solving and troubleshooting skills ·DevOps mindset with hands-on infra skills Nice-to-have: ·Experienced in SAP HANA DB ·SAP Kyma ·Node.js ·Comfortable working with testing frameworks. JUnit 5
We are currently looking for a freelance "Senior Backend Software Engineer (m/f/d)" for our client in the IT sector.
Start: asap
End:31.12.2026+
Capacity: Fulltime
Location: remote
We search for an experienced Software Engineer to drive key concepts in our backend. Core element of the backend is our open-source project "NeonBee". It is a reactive dataflow engine, a data stream processing framework using the Vert.x toolkit.
Tasks:
- Drive topics around data persistence and consumption in SAP for Me backend
- Drive improvements around system connectivity and data exchange protocols (oData)
- Evaluate and improve tools to support operational efficiency, reliability and observerability
- Act as a Developer on Duty depending on calendar schedule during working time
Must-have:
- Very experienced in software development for production applications in Java (11+)
- Understanding of reactive and asynchronous programming concepts
- Implementation of integration design patterns, especially in a microservices or event-driven architecture
- Building and tuning large-scale, high-performance web applications
- Experience with Vert.x (or similar e.g. Akka)
- Experience in SAP BTP
- Understanding of the OData specification (Open Data Protocol)
- Experience with Cloud Foundry, Kubernetes, Docker, or other container technologies
- Experience in OpenTelemetry, Prometheus, Grafana
- Experience in Helm chart authoring
- Strong problem-solving and troubleshooting skills
- DevOps mindset with hands-on infra skills
Nice-to-have:
- Experienced in SAP HANA DB
- SAP Kyma
- Node.js
- Comfortable working with testing frameworks. JUnit 5
Evgeniya Petrova