Action Technology

Senior Software Engineer - C#

New York City, New York, United States Software Developer Jobs Posted 9-Jul-2026
Actively Hiring Remote / WFH Full Time
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Job at a Glance

Category
Software Developer Jobs
Location
New York City, New York, United States
Job Type
Remote / WFH
Company
Action Technology
Status
Open & Active

Job Description

Job description
This is a full time position with a hedge fund. Prior hedge fund exprience or investment banking experience is required.

The Senior Engineer role entails responsibilities within our engineering department spanning a number of domains—from data engineering to workflow development—with a focus on application development and enhancement. As an integral member of the team, you will collaborate closely with other engineers, portfolio managers, department heads, and senior management to identify requirements and build robust internal tools.

Specific responsibilities are expected to include:
• Working directly with stakeholders and business users we support – building relationships to support critical processes and systems, and being able to troubleshoot issues and present solutions in a timely manner
• Delivering projects as an individual contributor capable of working front-to-back across both web and desktop applications
• Improving the architecture of existing systems by employing engineering best practices
• Improving maintainability of existing systems and processes proactively
• Using modern, proven architectural designs to help enhance existing and build new APIs, frameworks, and CI/CD pipelines and testing suites
• Performing engineering design and code reviews for both engineering staff and others
• Performing data analysis and reconciliations to validate system functionality
• Providing production support for various time-sensitive systems such as signal dashboards, portfolio management systems, external trade feeds, risk systems, operational/accounting systems and many others
• Evaluation of new technologies and third-party solutions

The role requires solid understanding of engineering principles, very strong programming capabilities, the ability to troubleshoot time-sensitive issues, collaborative spirit, project and team leadership, and an analytical orientation.

Finding the Right Fit

While there is a wide array of unique backgrounds that may be a good fit, experience with mortgage-backed securities, whole loans, structured products, portfolio management systems and accounting would be helpful in the role. Exposure to corporate credit products such as collateralized loan obligations, corporate bonds or bank loans would be useful, but is by no means required.

Beyond the skills and experiences you may have had in your academic and/or professional career to date, the following areas of expertise are fundamental to finding this position with our team a good fit:
• Strong data analytics and problem-solving skills
• Deep expertise with scalable systems and database architecture
• Experience working collaboratively with business users to develop design specifications
• Experience collaborating with researchers/data scientists to industrialize their processes
• A strong sense of ownership and responsibility for one’s work
• Strong command of SQL programming, database engineering principles and query optimization
• Expertise in C#, JavaScript, & TypeScript (and related frameworks such as Angular and React)
• Experience in building and supporting desktop dotnet applications (helpful, but not required)
• Working knowledge of Python (helpful but not required)
• Comfort developing front-ends, UI mock-ups, and process flow diagrams
• Passionate about technology and using it to solve real world problems for business users

You will possess a Bachelor’s or Master’s, in Computer Science or related engineering discipline such as Electrical Engineering, coupled with a minimum of five years’ relevant work experience. If, by chance, you have related work experience as part of a trading desk at an investment management firm, you are likely an excellent fit.
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Job Details

Category Software Developer Jobs
Location New York City
Posted 2026-07-09 12:58:02
Type Remote / WFH
Status Active

Posted By

C
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