> Markdown version of [/jobs/ext/3796114-lead-developer-engineer-application-platform](https://www.wearedevelopers.com/jobs/ext/3796114-lead-developer-engineer-application-platform). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Lead Developer Engineer - Application Platform

- **Company:** AP Sensing GmbH
- **Location:** Böblingen, Germany
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, .NET Framework, Application Programming Interfaces (APIs), Computing Platforms, Architectural Patterns, C Sharp (Programming Language), Cloud Engineering, Computer Programming, Distributed Systems, Enterprise Messaging Systems, Message Queuing Telemetry Transport (MQTT), Software Engineering, Event Driven Architecture, AngularJS, Kubernetes, Information Technology, Apache Kafka, Api Design, Stream Processing
- **Published:** October 17, 2026
- **Apply:** https://www.careerjet.de/jobad/de7ca2b6ee0b5c213636f1dc672520e5fe

## About the Role

* You have a degree in computer science, software engineering or similar
 * You have worked as a .Net developer for at least 8 years, 5 of which you designed, built and operated production-grade distributed systems, ideally within IIoT or sensor-based monitoring environments.
 * You have excellent programming skills in C# and modern .NET and you write high-quality maintainable code. Knowing further languages is a plus.
 * You have strong hands-on experience with K8s and messaging systems (e.g., NATS, MQTT, Kafka). Knowledge of event driven architectures and distributed stream processing is a plus.
 * You have good knowledge of web- and mobile technologies, protocols, and frameworks (Angular is a plus) and persistence
 * You know common design- and architecture patterns and best practices in API design
 * You have a strong hands-on mentality and you have the drive to create
 * You speak German and English at C1 level
 * You are willing to work on-site 50%

## Description

* You design and implement a cloud-native, multi-tenant and secure asset monitoring platform for distributed fiber optic sensing solutions
 * You build robust, secure and observable platform components, data models, interfaces and APIs
 * You evolve the application platform architecture, to support building solutions for field applications like fire detection, critical infrastructure monitoring or power grid solutions
 * You proactively engage with application teams to understand their domain and their needs
 * You provide technical leadership by applying your expertise, designing concepts, proposing effective solutions and guiding the decision-making process