Full-Stack Software Engineer

  • Munich, Germany
  • Full-Time
  • On-Site
  • 65,000-100,000 EUR / Year
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Job Description:

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

Software Developer

Munich / Bavaria / Germany

Hybrid & Remote, Full Time

€65.000 - €100.000

English C1, German C1

About the Job Posting

Develop and maintain a complex banking desktop application using C++/C#/.NET, Python APIs, and hardware integration, with a focus on real-time multi-threaded operations and secure banking protocols.

Language Requirements: English C1, German C1

Job Description

We are seeking an experienced desktop software engineer to join our enterprise banking software team. You will design, develop and maintain a multi-language, client-server desktop application, with emphasis on hardware integration, banking protocols, and robust, mission-critical operations.

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)
  • Work with Windows systems programming (COM/DCOM, Registry) and Win32 APIs for the core C++/C# client
  • 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 in Python
  • 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 multiple hardware vendors

Requirements

  • 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 patterns
  • Knowledge of SQL Server or PostgreSQL database design and optimisation
  • Strong systems-programming skills and debugging expertise
  • Proactive mindset, eager to work on complex, mission-critical systems
  • Strong English fluency
  • Experience with Python (plus)
  • Understanding of Windows desktop application development (Win32 API) (valuable)
  • Familiarity with device-driver development or hardware communication protocols (highly valuable)
  • Understanding of plugin architectures and design patterns (Factory, Observer, Command)
  • Experience with Node.js/Express for web services (plus)
  • Knowledge of banking systems, XFS or payment-terminal integration (plus)

Benefits

  • Competitive salary
  • 30 vacation days per year
  • Flexible working hours
  • Hybrid work options available
  • Opportunity to work on mature, enterprise-level banking software
  • Exposure to sophisticated systems programming and hardware integration challenges
  • International team collaboration across multiple time zones

Experience & Employment

  • Required Experience: Minimum 3 years of professional experience
  • Employment Type: Full-time