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Senior .NET Developer

qualysoft · Bucharest, Romania

Software DevelopmentSenior LevelExternal listingtemporary9 days ago

About The Role

About Qualysoft

  • 25 years of experience in software engineering, established in Vienna, Austria
  • Active in Romania since 2007, with office in central Bucharest (Bd. Iancu de Hunedoara 54B)
  • Delivering End to End IT Consulting Services - From Team Augmentation and Dedicated Teams to Custom Software Development
  • We deliver scalable enterprise systems, intelligent automation frameworks, and digital transformation platforms
  • Cross-industry experience by sustaining global players in BSFI (Banking, financial services and insurance), Telecom,Retail & E-commerce, Energy and Utilities, Automotive, Manufacturing, Logitics, High Tech
  • Global Presence: Switzerland, Germany, Austria, Sweden, Hungary, Slovakia, Serbia, Romania, and Indonesia
  • International team of 500+ software engineers
  • Strategic partnerships: Microsoft Cloud Certified Partner, Tricentis Solutions Partner in Test Automation and Test Management, Creatio Exclusive Partner, Doxee Implementation Partner
  • Powered by cutting-edge technologies: AI, Data & Analytics, Cloud, DevOps, IoT, and Test Automation.
  • Project beneficiaries ranging from large-scale enterprises to startups
  • Stable growth and revenue increase year over year, a resilient organisation in volatile IT market conditions
  • Quality-first mindset, culture of innovation, and long-term client partnerships
  • Global and local reach – trusted by key industry players in Europe and the US

Responsibilities

  • Solid experience in C# and .NET (Core / .NET 8+) and enterprise application development.
  • Strong understanding of software design and architecture principles (SOLID, Separation of Concerns, Clean Architecture, DDD, etc.).
  • Experience with asynchronous communication and distributed systems (message brokers, event-driven architecture, queues, pub/sub).
  • Good knowledge of API development (REST, versioning, resiliency, observability).
  • Experience with relational databases and ORMs (EF Core or similar).
  • Understanding of CI/CD concepts, automation, and continuous delivery.
  • Security-first mindset – solid understanding of secure coding principles and common vulnerabilities in modern applications (OWASP, OpenIDConnect, JWT, etc.).
  • Capable of working autonomously and making well-reasoned technical decisions.
  • Focused on quality, maintainability, and the long-term sustainability of solutions.
  • Open to feedback, continuous learning, and adopting new technologies.
  • Proactive in identifying and resolving technical issues.
  • Collaborative, willing to provide mentorship and support to less experienced colleagues.
  • Interest in automation, observability, and continuous process improvement.

Qualifications

  • Bachelor’s degree in Computer Science, Information Systems or equivalent technical field
  • At least 4 years of experience
  • Experience with Agile development environments
  • Have very good interpersonal and communication skills and love to be part of a team

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