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Excel Add-in Developer Full-time (Remote)

Remote

Full Time

Job Description

We are looking for an engineer to help build and maintain Excel add-ins that power our trading simulations and reporting workflows. You’ll work on both VBA macros and C# add-ins (.xlam, .xll, Excel-DNA), adding new features, improving performance, and ensuring compatibility with modern Excel environments.

Responsibilities

Excel Add-ins

• Develop and maintain Excel add-ins using VBA and C#.
• Add new features (e.g., option contract support, trading functions).
• Refactor legacy ‘.xlsm’ code into ‘.xlam’ add-ins where possible.
• Ensure compatibility across VBA, C#, and modern Office add-in frameworks.

Integration & APIs

• Connect Excel add-ins to databases (SQL Server/PostgreSQL) and external APIs.
• Support integration with C# backend logic and modern add-in components.

Testing & Documentation

• Write user guides and developer handoff documentation.
• Ensure performance and reliability in production Excel environments.

Requirements

Must-Have Skills:

• C#/.NET experience with Excel add-ins (.xll, Excel-DNA).
• Familiarity with Excel object model (worksheets, ranges, tables).
• Debugging and troubleshooting Excel automation.
• Git/GitHub workflows.

Nice-to-Have:

• Experience with TWS API or other financial data APIs.
• Knowledge of trading/financial data workflows.
• Basic SQL for database-connected macros and add-ins.

Eligible applicants must be:

• Graduated from electrical engineering, software engineering, computer science, or a closely related program.