Sr. .Net Developer

Title: Sr. .Net Developer

Location: Hackensack, NJ (Hybrid)

Duration: 12+ Months

Experience: 10+ Years

Note: Candidates must be able to work on our client's W2. No visa sponsorship or transfers are available. No 3rd party Corp to Corp inquiries will be considered.

Key Responsibilities:

• Lead the design, development, and maintenance of product features/enhancements.
• Collaborate with architects and product stakeholders to define technical direction.
• Mentor and guide developers, ensuring adherence to best practices and coding standards.
• Build and optimize RESTful APIs with service-oriented architectures.
• Establish best practices for using AI-assisted tools in daily development (e.g., code generation, refactoring, test creation, documentation, and design exploration).
• Review, validate, and curate AI-generated output to ensure it meets architectural, security, and quality standards.
• Leverage AI tools to accelerate planning, estimation, and technical discovery while maintaining strong engineering judgment and ownership.
• Continuously evaluate new AI-driven development workflows and tools to improve team productivity and software quality.
• Oversee front-end integration with back-end services.
• Drive the adoption of patterns such as Domain Driven Design, CQRS, and Event-Driven Architecture.
• Ensure code quality through testing (unit, integration, and automation).
• Identify and resolve performance bottlenecks across applications and databases.
• Champion secure coding practices and modern development techniques.

Required Experience & Skills:

• 10+ years of experience designing and developing scalable web applications.
• Strong expertise in C# and ASP.NET.
• Proven experience with RESTful APIs.
• Proficiency in front-end technologies (Angular, JavaScript, HTML5).
• Experience with Entity Framework or similar ORM tools.
• Knowledge of Dependency Injection (IoC containers such as Ninject, Autofac).
• Familiarity with event messaging solutions (e.g., NServiceBus).
• Proficiency in SQL Server, MongoDB, or similar large-scale databases.
• Experience using AI-assisted development tools (e.g., Codex, Opus, or Copilot-style agents) for coding, refactoring, test generation, and technical planning.
• Understanding of how to validate, review, and govern AI-generated code to meet quality, security, and maintainability standards.
• Strong grasp of performance tuning and optimization.
• Excellent communication skills and ability to collaborate across teams.

Development Process

• Knowledge of Agile/Scrum methodologies.
• Experience with CI/CD tools such as GitHub, Jira, Octopus, etc.
• Experience using AI-assisted tools as part of the development lifecycle for design exploration, implementation, testing, and documentation.
• Active participation in backlog grooming and sprint planning.
• Ownership of features from Ready to Done.

Personal Qualities

• Proactive, self-starter who drives initiatives forward.
• Strategic thinker with a focus on scalability and maintainability.
• Strong leader who values team success as much as personal success.
• Thrives in a fast-paced environment with frequent feature releases.

Preferred:

• Familiarity with modern DevOps practices (CI/CD pipelines, Bamboo, Jira, GitHub).
• Knowledge of cloud platforms (AWS, Azure) and deployment strategies.
• Experience with mobile development or cross-platform solutions.