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# Middle Office Sr Developer

- **Company:** EXPERT RECRUITING SOLUTIONS, LLC
- **Location:** Canonsburg, PA, United States
- **Experience:** Expert
- **Contract:** Temporary to permanent
- **Skills:** .NET Framework, Software Quality, Computer Programming, Database Design, Financial Information EXchange, Microsoft SQL Server, Software Engineering, Software Systems, SQL Databases, Multithreading, Cloud Platform System, Solid Principles
- **Published:** October 29, 2026
- **Apply:** https://www.thejobnetwork.com/job/a6df1722-3709-4f76-8735-3e8a31d5febe/middle-office-sr-developer

## About the Role

Our client is seeking a Senior Developer with 10 years of experience to lead the design, development, and support of innovative software solutions within a fast-paced capital markets environment on their Middle Office team., * 10 years of software development experience with demonstrated expertise in C# and .NET

 * Advanced proficiency in SQL and Microsoft SQL Server; strong understanding of database design and optimization
 * Expert-level knowledge of multi-threading, async programming, and SOLID principles
 * Proven experience with FO Trading Platforms, FIX protocol, and capital markets domain (equities, swaps, corporate actions)
 * Experience working with legacy platform programming and modernization initiatives in financial services
 * Strong problem-solving skills with the ability to diagnose and resolve complex production issues
 * Excellent communication skills and ability to work collaboratively across global teams
 * C experience is a plus

## Description

* Lead, architect, and develop innovative software solutions; manage design reviews, code quality, and testing standards
 * Provide Level 3 production support including diagnosis, investigation, and resolution of critical issues; coordinate across development, business, infrastructure, and vendor teams
 * Follow established deployment processes to implement, test, and configure code changes in production environments
 * Pro-actively collaborate within a global development team to deliver robust, scalable solutions
 * Mentor junior developers and contribute to best practices in legacy platform modernization
 * Design and optimize solutions using multi-threading, async programming, and SOLID architectural principles
 * Work with Front Office Trading Platforms, FIX protocol, and capital markets instruments including equities, swaps, and corporate actions