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Senior Full Stack Web Developer

Cozen O'Connor

Salary not specified
Oct 15, 2025
Philadelphia, PA, US
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Cozen O’Connor is seeking a Full Stack .NET Web Developer to contribute to the development and modernization of web-based solutions built on .NET and SQL Server, working with both back-end and front-end technologies. The role involves building, maintaining, and enhancing multi-tier applications, supporting legacy systems, and translating business requirements into technical solutions.

Requirements

  • Solid understanding of .NET (C-Sharp, ASP.NET) and modern front-end frameworks (Blazor or similar).
  • Familiarity with Azure DevOps, automated build/deployment pipelines.
  • Experience with SSIS/SSRS and SQL Server packaging and processes.
  • Proficiency in SQL Server and familiarity with cloud environments (Azure is a plus).
  • Exposure to SDLC processes and Agile methodologies.
  • Experience developing .NET web applications and services and APIs.

Responsibilities

  • Develop, maintain, and enhance .NET web applications and services using C-Sharp, ASP.NET, SQL Server, and modern front-end frameworks (e.g., Blazor).
  • Participate in all phases of the software development lifecycle (SDLC): requirements gathering, design, coding, testing, deployment, and maintenance.
  • Support, maintain, and update legacy .NET applications critical to business operations.
  • Assist in implementing development processes, including automated builds, deployments, and change control.
  • Collaborate with security and database teams to ensure application security, compliance, and performance.
  • Apply secure coding practices.
  • Contribute to code reviews, follow design patterns, and adhere to clean architecture and SOLID principles.

Other

  • Motivated and detail-oriented.
  • Hybrid role, onsite in our Philadelphia headquarters 3 days per week.
  • Strong problem-solving skills and attention to detail.
  • Ability to work collaboratively in a team environment.
  • Good communication skills for interacting with team members and stakeholders.