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mimi

.NET Developer & AI Engineer

Motion Recruitment

Miami · Hybrid Full-time Senior 6d ago

About the role

Senior .NET Engineer – Financial Services

Location

Miami, FL (hybrid)

Employment Type

Full Time W2

Start Date

Immediate Preferred

Our Client

Our client is redefining the brokerage industry as a forward‑thinking, fintech‑enabled firm designed to modernize the traditional interdealer broker model. We specialize in sophisticated trade execution services across a broad range of complex financial instruments, including equity derivatives, futures & index options, ETFs, cash equity, and fixed income.

The Opportunity

We are seeking a Senior .NET Engineer with extensive experience in financial services and deep expertise in capital markets, trading systems, and financial instruments. This is an opportunity to be part of a team of innovative professionals dedicated to leveraging technology to drive meaningful change.

Key Responsibilities

  • Software Development: Design, develop, and maintain high‑performance, scalable .NET applications.
  • System Integration: Ensure seamless integration with other technologies and third‑party services.
  • Performance Optimization: Optimize code for efficiency, speed, and scalability.
  • Code Quality: Write clean, maintainable, and testable code, adhering to best practices.
  • Collaboration: Work closely with product managers, designers, and engineers to develop high‑quality solutions.
  • Technical Leadership: Mentor junior developers and contribute to architectural decisions.
  • Troubleshooting: Identify and resolve performance and scalability issues.

Qualifications

Technical Expertise

  • .NET Development: 10+ years of professional experience with C#, .NET Core, and related technologies.
  • Azure DevOps: Hands‑on experience with CI/CD pipelines, source control, and release management.
  • Large Data & AI Tools: Experience working with large datasets and AI tools like Anthropic and OpenAI.
  • Software Architecture: Strong knowledge of object‑oriented programming, design patterns, and system architecture.
  • Database Skills: Proficiency in SQL Server and ORM frameworks like Entity Framework.
  • ERP Integrations: Experience with Microsoft Business Central / Dynamics and OData Protocols (a plus).

Financial Industry Experience

  • Capital Markets & Trading Systems: Strongly preferred background in financial services, banking, or trading.
  • Financial Protocols: Familiarity with FPML, TraFiX, and Markitwire is a significant advantage.

Soft Skills

  • Communication: Ability to convey complex technical concepts to non‑technical stakeholders.
  • Collaboration: Comfortable working in a fast‑paced, team‑oriented environment.
  • Problem‑Solving: Strong analytical and troubleshooting skills with a keen attention to detail.

What We Offer

  • Competitive Compensation: W2
  • Exciting Projects: Work on cutting‑edge fintech solutions in the financial industry.
  • Dynamic Work Environment: Fast‑paced, collaborative culture with innovative professionals.
  • Onsite Requirement: Based in Miami, FL, with at least 50% onsite presence required.

Join us in transforming the brokerage industry through technology‑driven solutions. Apply today!

Posted By: John Driscoll

Requirements

  • 10+ years of professional experience with C#, .NET Core, and related technologies.
  • Hands-on experience with CI/CD pipelines, source control, and release management.
  • Experience working with large datasets and AI tools like Anthropic and OpenAI.
  • Strong knowledge of object-oriented programming, design patterns, and system architecture.
  • Proficiency in SQL Server and ORM frameworks like Entity Framework.
  • Strongly preferred background in financial services, banking, or trading.
  • Familiarity with FPML, TraFiX, and Markitwire is a significant advantage.
  • Ability to convey complex technical concepts to non-technical stakeholders.
  • Comfortable working in a fast-paced, team-oriented environment.
  • Strong analytical and troubleshooting skills with a keen attention to detail.

Responsibilities

  • Design, develop, and maintain high-performance, scalable .NET applications.
  • Ensure seamless integration with other technologies and third-party services.
  • Optimize code for efficiency, speed, and scalability.
  • Write clean, maintainable, and testable code, adhering to best practices.
  • Work closely with product managers, designers, and engineers to develop high-quality solutions.
  • Mentor junior developers and contribute to architectural decisions.
  • Identify and resolve performance and scalability issues.

Skills

.NET CoreAI ToolsAnthropicAzure DevOpsC#CI/CDEntity FrameworkFPMLMicrosoft Business CentralOData ProtocolsObject-oriented programmingOpenAIORM frameworksSQL ServerTraFiX.NET Development

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