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.Net Full Stack Senior Developer

Not Disclosed

Job Description & Details

The finance and investments sector is rapidly modernizing its tech stack, creating high demand for seasoned .NET full‑stack engineers. Companies in the NJ/NY/CT corridor are looking for local talent who can hit the ground running on mission‑critical applications. This contract role offers a chance to work on cutting‑edge .NET Core projects while leveraging your senior‑level expertise.

Job Summary

We are seeking a Senior .NET Full Stack Developer to design, develop, and maintain investment‑industry applications. The role focuses on building robust ASP.NET and .NET Core solutions, collaborating with cross‑functional teams, and ensuring high performance and scalability. This is a contract position based in Newark, NJ, serving clients in the financial services space.

Top 3 Critical Skills Table

Skill Why it's critical Mastery Level
ASP.NET / MVC Core framework for building secure, high‑performance web apps in finance Senior
.NET Core Enables cross‑platform, performant services essential for modern investment platforms Senior
Full‑Stack Development (C#, JavaScript, HTML/CSS) Allows end‑to‑end delivery from UI to backend services, reducing hand‑off delays Senior

Interview Preparation

  1. Explain the differences between .NET Framework and .NET Core and when you would choose each.
    What the interviewer is looking for: Understanding of platform capabilities, performance, cross‑platform support, and migration considerations.
  2. How do you implement authentication and authorization in an ASP.NET Core application for a financial product?
    What the interviewer is looking for: Knowledge of Identity, JWT, OAuth2, and best practices for secure data handling.
  3. Describe how you would design a RESTful API for real‑time investment data streaming.
    What the interviewer is looking for: Ability to design scalable endpoints, use of async programming, caching strategies, and WebSocket/SignalR if needed.
  4. What performance optimization techniques have you applied in a .NET Core microservice?
    What the interviewer is looking for: Experience with profiling, memory management, async/await, connection pooling, and containerization.
  5. Walk through a challenging full‑stack project you delivered, focusing on the integration between front‑end and back‑end.
    What the interviewer is looking for: Problem‑solving, collaboration, testing strategies, and delivery of end‑to‑end functionality.

Resume Optimization

  • .NET Core
  • ASP.NET MVC
  • Full Stack Development
  • C#
  • JavaScript
  • RESTful APIs
  • Financial Services
  • Investments Industry
  • Performance Tuning
  • Agile Methodologies

Application Strategy

When reaching out to the recruiter, send a concise email greeting, attach your updated resume, and clearly highlight your top skills. Make sure to mention related skills you possess, such as ASP.NET, .NET Core, and full‑stack development, and reference any investment‑industry projects or financial‑services experience that aligns with the role.

Career Roadmap

Current Role Typical Experience Core Focus Next Position
Senior .NET Full Stack Developer 5‑7 years with ASP.NET, .NET Core, full‑stack projects End‑to‑end application design, mentorship, performance tuning Lead .NET Engineer / Technical Lead
Lead .NET Engineer 7‑10 years, cross‑team leadership System architecture, strategic technology decisions Engineering Manager / Director of Engineering