Welcome to Ovidiu Ion Danciu's Page

About Me

I am a reliable, well-organized, and dedicated .NET developer with a strong passion for crafting efficient software solutions.
With over a decade of experience in software development, I am enthusiastic about both teamwork and independent projects.
My strong communication skills complement my technical expertise, allowing me to contribute effectively to diverse teams and projects.

Professional Experience

• Dotnet Developer at ALTEN
  February 2024 - Present | Bucharest, Romania (Hybrid)
  As a consultant assigned by ALTEN to an international banking client with a software development division in Romania, I contributed to the maintenance, enhancement, and ongoing development of a distributed Single Sign-On (SSO) and electronic signature ecosystem. This system, used by both banking and non-banking entities across multiple countries, was built on IdentityServer3 (open-source) and leveraged OpenID Connect, OAuth 2.0, and hybrid flows.

  Main responsibilities included:

  • Fixing authentication and authorization-related bugs across multiple services
  • Adjusting, implementing, and testing complex IdentityServer3-based authentication flows
  • Refactoring and optimizing legacy code to meet SonarQube quality gates: increasing unit/integration test coverage, eliminating duplication, and reducing cyclomatic complexity
  • Developing internal tools for simulating authentication scenarios in real-world conditions
  • Managing integrations with external services: rotating and replacing certificates, onboarding new partners, and handling custom setup requirements
  • Enhancing overall security by adding validation and control points in sensitive areas of the authentication pipeline
  • Customizing frontend layouts to meet branding and functionality needs of internal and international clients

  Tech stack: .NET Core, ASP.NET Core, WCF, REST APIs, Windows Forms, SQL, JWT, GitLab, Jenkins, SonarQube, CI/CD pipelines

  I consistently applied OOP best practices, SOLID principles, and relevant software design patterns to ensure long-term maintainability and scalability.

  AI Catalyst / Advocate
  In parallel, I actively contributed to an internal initiative focused on testing, promoting, and evaluating the use of AI tools in software development. I assisted teammates, shared knowledge, and took part in internal conferences, workshops, and AI-driven contests.

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• Senior Software Engineer at Finastra
  April 2021 - October 2023 | Bucharest, Romania (Remote)
  Involved in technical maintenance, optimization, enhancement and new feature implementation on an ecosystem of ecommerce solution, web services and REST API.

  Main activities included:

  • Providing solutions to technical issues reported by the support department
  • Supporting and mentoring junior developers
  • Maintaining and improving existing ecommerce web services and APIs

  Technologies: C#, .NET Framework, .NET Core Web Services, WCF, MVC, JavaScript, jQuery, AJAX, MSSQL, LINQ, Entity Framework, Linq2Db

  Accomplishments:

  • Enhanced both backend and frontend features and improved overall application security
  • Developed new software modules and integrated them with existing systems

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• Manager at Toto Print Online SRL
  2019 - 2020 | Târgoviște, Romania
  Led software development projects focused on internal systems, including invoicing, production tracking, and data-driven reporting tools.
• .NET Programmer at MicroBilt
  2010 - 2018 | Târgoviște, Romania
  Specialized in maintaining and optimizing legacy code, developing new applications, and providing solutions for customer support-related issues.

  Main responsibilities:

  • Maintaining and optimizing legacy code as well as developing new internal or client-specific applications
  • Investigating and resolving issues from the customer support department
  • Working on web services, web applications, Windows Forms, and console-based utilities

  Technologies: C#, ASP.NET, Web Services, WCF, WinForms, MVC, JavaScript, jQuery, AJAX, MSSQL, LINQ, Entity Framework

  Accomplishments:

  • Created a complex workflow project following company development standards
  • Introduced structured processes for requirements gathering, analysis, testing, and documentation
  • Worked efficiently across multiple projects in parallel, adapting to different task contexts

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Technical Skills