Paul A.

Senior Software Developer

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Neuenkirchen, Germany

Experience

Jan 2023 - Jul 2024
1 year 7 months
Germany

Senior Software Developer

JaMoin GmbH

  • Co-led the modernization of business-critical financial software, migrating from Basic legacy to .NET/WPF, making architecture decisions, reducing the codebase by ~40-50% and improving performance by ~30-40%.
  • Developed greenfield features (file handling, debtor management), optimized database access and UI rendering, increasing system stability and transaction success rate.
  • Responsible for end-to-end development including architecture design, code reviews, sprint planning, and acting as the technical point of contact for stakeholders.
  • Tech: C#, .NET, WPF/XAML (MVVM), MSSQL, Clean Architecture, Visual Studio 2021, Azure DevOps
Jul 2022 - Oct 2022
4 months
Germany

C#/C++ Software Developer

Across Systems GmbH

  • Independently led the frontend redesign of an enterprise translation software (WPF/XAML), improving UX and workflows with modern UI components and optimized data binding.
  • Worked with existing C++ backend, enhancing performance and database transaction stability through optimized data access and error-handling logic.
  • Coordinated remotely with engineers from various desktop and web projects and conducted code reviews.
  • Tech: C#, .NET Framework, WPF/XAML, C++ (integration), MSSQL, Azure DevOps, Git
Dec 2020 - Aug 2021
9 months
Germany

Full Stack Software Developer

Deloitte

  • Developed a greenfield internal HR web application in a three-person team for structured goal agreements between team leads and employees, digitizing manual performance review processes.
  • Optimized UI/UX through iterative stakeholder feedback, enabling efficient use without training and increasing user acceptance.
  • Led 50% of stakeholder meetings (3-5 participants) for requirements analysis and feature prioritization.
  • Planned weekly sprints in Azure DevOps; conducted code reviews, pull request management, and unit testing in a fully remote agile environment.
  • Tech: C#, Angular, Visual Studio 2019, Visual Studio Code, Azure DevOps
Aug 2020 - Dec 2020
5 months
Düsseldorf, Germany

Consultant C# Software Engineer - Team Lead

Alter Solutions Deutschland GmbH

  • Led a three-person team in building a cloud-based proposals platform for cybersecurity and pen-testing offers, managing task distribution, making architecture decisions, and reporting directly to department management.
  • Established structured workflows and processes during the company's early growth phase, planning strategies and organizing cross-functional collaboration between development and security teams.
  • Developed and owned the software solution automating customer proposals; defined business processes and technical implementation for a scalable Azure platform.
  • Tech: C#, .NET, Azure (App Services, Storage, Functions), REST APIs, Cloud Architecture
Aug 2017 - Aug 2020
3 years 1 month
Germany

Fullstack C# Software Engineer

Another Monday | Intelligent Automation

  • Developed RPA front-end assistance bots with 3,000–4,000 runs/day at an 85–95% success rate, generating ~€72,000/year revenue per bot (€0.05/run) and freeing up customer staff capacities through workflow automation.
  • Architected and developed an RPA desktop application from scratch, enabling customers to automate independently and scaling the customer base from ~5 to 30+.
  • Led seven engineers during two critical update weekends in the absence of the product owner, coordinating maintenance of 32 bot types and providing direct customer support.
  • Responsible for code reviews, sprint planning, pull request management, and remote collaboration in an agile development environment; maintained production-ready bot solutions.
  • Tech: C#, .NET, WPF/XAML (MVVM), UIAutomation, Selenium, MSSQL, Git, Scrum, RPA
Jan 2017 - Mar 2017
3 months
Germany

C# Unity Software Engineer

VUCX - Vision Unltd. Creative Worx GmbH

  • Architected, developed, and released an iOS AR app prototype from concept to product; handled frontend and backend development in Unity C# with a focus on intuitive user experience.
  • Tech: C#, Unity, iOS development, mobile app development, AR
Apr 2016 - Jul 2017
1 year 4 months
Germany

C#/C++ Supervisor Games Programming

SAE Institute Germany

  • Supported games programming students with theoretical and practical questions; supervised programming tests and facilitated workshops at education fairs.
  • Installed and maintained workstations; organized daily room bookings, payment processing, and administrative tasks in the educational environment.
  • Tech: C#, C++, .NET Framework, Games Development, Teaching/Mentoring

Summary

Passionate C#/.NET developer with roots in game development and more than 9 years of experience in enterprise projects. Remote since 2018, preferably as a freelancer or part-time. Loves clean code, performance tuning, and all things technically exciting: WPF, Azure, cryptocurrencies, and 3D worlds. Works independently, enjoys challenging problems, and delivers solutions that work. Seeking projects that appreciate quality and flexibility.

Skills

  • C# – Daily Usage

  • .Net Core – Advanced Knowledge

  • Entity Framework – Advanced Knowledge

  • C++ – Basic Knowledge

  • Xaml - Wpf – Advanced Knowledge

  • Ms-sql – Advanced Knowledge

  • Asp.net – Basic Knowledge

  • Visual Studio

  • Jetbrains Rider

  • Resharper

  • Gitkraken

  • Ms Sql Server Studio

  • Microsoft Teams

  • Git With Gitlab And Github

  • Gitflow

  • Jira

  • Redmine

  • Trello

  • Redbooth

  • Azure Devops

  • Scrum

Languages

German
Native
English
Advanced
Russian
Advanced

Education

Apr 2016 - Sep 2016

Middlesex University in cooperation with SAE Institute in Cologne

Bachelor of Science, specialization in media · Game Programming · Cologne, Germany

Sep 2014 - Apr 2016

Middlesex University in cooperation with SAE Institute in Cologne

Diploma, specialization in media · Game Programming · Cologne, Germany

Aug 2011 - Jun 2014

Business and Economics High School at the Vocational College in Erkelenz

Abitur · Business Administration, Mathematics, and Computer Science · Erkelenz, Germany

...and 1 more

Certifications & licenses

C++/Qt Advanced Course + MATLAB and Simulink

Alfatraining Education Center GmbH in Münster

Azure Fundamentals

WPF - Design and Programming

GFU Cyrus AG in Cologne

Integrated Potential Assessment

AWO District Association Heinsberg in Übach-Palenberg

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