CareerPlan

Principal Software Engineer (m/w/d)(546423)

Paderborn, NORDRHEIN_WESTFALENFull-time2026-08-03 → 2026-11-10

Core

Principal C# Developer leading the technical design, architecture, and delivery of complex, high-security software solutions for Germany's internal and external security operations.

Role type

Principal Software Engineer (C#/.NET)

Builds

Complex enterprise applications and software solutions for defense and intelligence operations

Domain

Defense & Intelligence / Enterprise Software

Required skills

C#, .NET Core, Microservices, Angular, TypeScript, SQL/PLSQL, GitOps, Test Automation, Containerization, Technical Architecture Design, Team Leadership

Preferred skills

ITIL, Agile/Scrum/Kanban, Pre-sales, Coaching

Technologies

C#, .NET Core, Angular, TypeScript, Bootstrap, Azure DevOps, Entity Framework, SQL Server

Responsibilities

Define solution architecture and technical concepts; Lead development of complex application components; Manage technical testing and quality assurance; Estimate effort and steer delivery models; Conduct customer workshops and pre-sales activities; Coach and mentor development teams.

Seniority

Principal, hands-on IC with strategic leadership