Senior Engineer - C#/.NET

• *About the Role**

We are looking for a highly skilled and experienced Senior .NET IoT \& Systems Engineer to join our team. You will play a key role in designing and developing backend systems for real\-time data acquisition, industrial device integration, and high\-performance processing within PumpTest and IIoT platforms.

• *Description**

You will build backend systems connecting industrial hardware with cloud platforms, develop multithreaded applications, integrate industrial protocols, and enable real\-time data streaming.

• *Tech Stack**

Backend: C\# (.NET 8\), Multithreading, Linux

Protocols: LXI, SCPI, Modbus, Serial

Data: Kafka, Avro

API: REST, SignalR, WebSockets

Infra: Docker, PostgreSQL, EF Core

Security: OAuth2, JWT

• *Key Responsibilities**

• Develop backend applications in .NET
• Implement multithreaded systems
• Integrate industrial protocols
• Develop APIs and streaming systems
• Work with Kafka and PostgreSQL
• Ensure security and testing

• *Requirements**

Systems Programming: Expert C\# (.NET 8\), Multithreading, Memory Management, and Cross\-Platform .NET on Linux (systemd, Deployment).

Hardware \& IoT

Industrial Protocols: Expert in LXI, SCPI, Modbus, and Serial Communication. Experience with Byte\-level processing and Data Acquisition (DAQ).

Data \& Mes\-saging

High\-Throughput Streams: Advanced Kafka (Confluent Client), Avro (Schema\-based Seriali\-zation), and Real\-time Data Acquisition.

API \& Con\-nectivity

Hybrid Communication: RESTful Design (OpenAPI/NSwag), SignalR/WebSockets, and Real\-time Config via Base64/JSON.

Infrastruc\-ture

Cloud \& Containers: Advanced AWS (ECS/EKS, RDS, IAM) and Kubernetes/K3s deployment strategies.

Data \& Mes\-saging

Distributed Systems: High\-level decisions for Kafka (Partitioning, EOS), Avro compatibility, and Schema Registry.

Persistence

PostgreSQL \& ORM: Advanced data modelling, partitioning, and replication; expert in .NET Persistence Frameworks (Entity Framework Core / Dapper).

Specialized Dev

Embedded\-Adjacent: Expertise in device communication, hardware abstraction, and proto\-col integration.

Governance

Documentation \& Strategy: API Governance (REST/gRPC), technical documentation (Arc42/C4\), and Stakeholder Management.