Full-Stack Software Engineer (C++/C#/.NET) - #2632509

Job Title: Full-Stack Software Engineer (C++/C#/.NET)

Location: Munich, Bavaria, Germany (Hybrid/Remote)

Employment Type: Full-Time

Salary: €65,000 - €100,000 per year

Languages Required: English (C1), German (C1)

Experience Required: 3+ Years

About the Role

We are seeking an experienced Full-Stack Software Engineer to join our enterprise banking software team. You will design, develop, and maintain a complex client-server banking application, focusing on hardware integration, banking protocols, real-time operations, and mission-critical systems.

Key Responsibilities

• Develop and maintain a complex C++/C#/.NET desktop client-server application for banking operations

• Build Python API layers, including REST and XML-RPC interfaces for banking integrations

• Create Python device handlers for hardware abstraction (cash dispensers, printers, card readers, check readers, signature pads, etc.)

• Work with Windows systems programming, including COM/DCOM, Registry, and Win32 APIs

• Develop integrations with banking core systems using XML-RPC, SOAP, and custom socket protocols

• Implement high-level (PHLAPI) and low-level (PLLAPI) banking APIs for transaction processing

• Create real-time monitoring dashboards using Node.js, Express, and React

• Work with SQL Server and PostgreSQL databases for transaction management and reporting

• Ensure compliance with banking protocols and security standards

• Develop multi-threaded, event-driven systems for asynchronous device operations

• Support integrations with multiple hardware vendors

Required Qualifications

• Strong experience in API development and device integration (REST APIs, XML-RPC, hardware drivers)

• Experience with C++ and/or C#/.NET development for Windows desktop applications

• Experience with multi-threaded programming and asynchronous systems

• Knowledge of SQL Server or PostgreSQL database design and optimization

• Strong systems programming and debugging skills

• Proactive problem-solving mindset and ability to work on complex systems

• Strong English communication skills

Preferred Qualifications

• Experience with Python development

• Understanding of Windows desktop application development (Win32 API)

• Familiarity with device-driver development or hardware communication protocols

• Knowledge of software design patterns and plugin architectures (Factory, Observer, Command)

• Experience with Node.js and Express for web services

• Knowledge of banking systems, XFS, or payment terminal integrations

Benefits

• Competitive salary package

• 30 vacation days annually

• Flexible working hours

• Hybrid and remote work options

• Opportunity to work on enterprise-level banking software

• Exposure to advanced systems programming and hardware integration challenges

• International collaboration with global teams

If you have experience building complex desktop applications, integrating hardware devices, and working on mission-critical banking systems, we'd love to hear from you. Apply today!