RSM US LLP · 1 day ago
Temporary Senior Backend Lead Developer – Capital Markets Technology Transformation
United States
Full-time
Remote
Senior Level, Lead/Staff
$60/hr - $90/hr
10+ years expRSM US LLP is a leading provider of professional services to the middle market globally, and they are seeking an experienced Senior Backend Lead Developer for a temporary opportunity. This role involves providing hands-on technical leadership and shaping modern backend architectures for a large-scale technology transformation for a leading Capital Markets client.
AccountingConsultingFinancial Services
No H1B
Responsibilities
Lead backend engineering efforts across multiple Agile teams within a major transformation initiative. Define and implement secure, scalable, and resilient backend and API architectures
Translate business and functional requirements into technical designs, integration patterns, and reusable frameworks
Design and build API-driven services using RESTful and microservices patterns, contract-first development, and Swagger/OpenAPI documentation. Support modernization and legacy platform rewrite initiatives, including migration from older technologies and architectural patterns
Write high-quality, secure, and performant backend code using .NET, C#, and SQL Server
Build scalable data access components using Dapper ORM. Implement distributed caching solutions such as Apache Ignite or MemSQL to support high-throughput processing
Integrate messaging and real-time platforms such as Solace or SignalR for event-driven architectures
Implement logging, monitoring, and observability using enterprise frameworks such as Serilog, ELK, or Splunk-based solutions
Drive engineering best practices including code quality, security, exception handling, and layered architecture
Lead code reviews, technical mentoring, and pairing sessions. Promote test-driven development and automated unit testing using xUnit or NUnit with strong coverage expectations
Establish reusable backend components and shared frameworks to accelerate delivery
Define and support SDLC and CI/CD practices, including Git-based branching strategies such as GitFlow or trunk-based development
Partner with DevOps and SRE teams to support CI/CD pipelines using Jenkins, Helios, and automated quality gates
Contribute to continuous improvement of development standards, workflows, and documentation
Collaborate closely with architects, product owners, business analysts, QA, and platform teams. Participate in Agile ceremonies and use tools such as Jira, Confluence, and architecture diagramming tools
Provide hands-on troubleshooting and technical guidance through development and production support phases
Qualification
Required
10+ years of backend engineering experience using .NET and C# in enterprise environments
Strong experience building scalable RESTful APIs, microservices, and API documentation using Swagger/OpenAPI
Deep experience with SQL Server, Dapper ORM, JSON/XML, and performance tuning
Experience with distributed caching platforms such as Apache Ignite or MemSQL
Hands-on experience with messaging and event-driven architectures using Solace, SignalR, or similar technologies
Strong background in unit testing, TDD, and automated test pipelines using xUnit or NUnit
Practical experience with CI/CD pipelines, Jenkins, Helios, and Git-based workflows
Proven ability to lead development teams and communicate effectively with technical and non-technical stakeholders
Bachelor's degree in Computer Science, Software Engineering, or equivalent practical experience
Preferred
Experience in financial services or capital markets, including trading, risk, clearing, or settlement platforms
Exposure to front-end frameworks such as React or Angular to support collaboration with full-stack teams
Company
RSM US LLP
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10001+ employees
Funding
Current Stage
Late StageLeadership Team
Bill Kracunas
Principal and National Leader, Strategy and Management Consulting
David Hickethier
Principal, Strategy & Human-Centered Design
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