About this opportunity
RCN Capital, LLC. lists this Senior Software Engineer opportunity in windsor, Connecticut. Review the employer’s description below for duties, qualifications and application requirements.
Job description
RCN Capital is a nationwide wholesale lender focused on helping real estate investors and independent mortgage brokers finance non-owner-occupied residential investment properties. We support a range of strategies including ground-up construction, fix-and-flip projects, and long-term rental financing through a streamlined process, dedicated teams, and a commitment to exceptional service.
We are seeking a Senior Full Stack Engineer to lead the design and development of next-generation financial and partner-facing platforms, including the Loan Origination System (LOS), Partner Ecosystem, and Sales Portal. This role is responsible for end-to-end delivery of modern, cloud-native applications using .NET 10, React, and TypeScript, with a strong emphasis on scalable architecture and high-quality engineering standards.
The ideal candidate brings a builder mindset for net-new development, combined with an innovation mindset to integrate AI-powered capabilities and agentic workflows into core business processes. This role will act as a technical leader within the Project Nexus ecosystem and serve as a bridge between onshore leadership and offshore delivery teams.
Primary Responsibilities
Lead architecture and hands‑on development of modern web applications supporting LOS, Partner Portals, and Sales Platforms
Design, build, and maintain React and TypeScript front‑end applications using modern patterns and state management
Develop high‑performance backend services and APIs using C# and .NET 10 / .NET Core
Design and implement AI‑powered features, including intelligent agents and automated document processing using Azure OpenAI Services
Collaborate closely with offshore development teams, performing code reviews and providing architectural and technical guidance
Design and implement cloud‑native architectures leveraging Azure services such as Functions, App Services, Service Bus, and serverless components
Ensure secure‑by‑design coding practices, including authentication, authorization, and secrets management
Support production systems and participate in design reviews, technical planning, and platform evolution initiatives
Required Skills
Frontend
Expert‑level React (Hooks, Context API) and TypeScript.
Experience with modern state management (Redux/Zustand) and Tailwind CSS
Deep proficiency in C# and .NET 10/Core.
Experience with Entity Framework Core and high‑performance API design.
AI/GenAI
Proven experience with LLMs (4th generation or newer), Prompt Engineering, and building RAG applications.
Familiarity with LangChain or Semantic Kernel is a plus.
Cloud
Strong experience with Azure (App Services, AI Search, Key Vault) and Azure DevOps/GitHub Actions for CI/CD.
Database
Advanced PostgreSQL skills, including schema design, performance tuning, and NoSQL (CosmosDB) experience.
Preferred Skills
Experience with AI / GenAI concepts, including LLMs, prompt engineering, or Retrieval‑Augmented Generation (RAG) patterns
Familiarity with Azure OpenAI Services, LangChain, Semantic Kernel, or similar frameworks
Experience with containerization and orchestration (Docker, Kubernetes)
Exposure to NoSQL databases such as Cosmos DB
Understanding of secure coding practices and regulated data environments
Required Experience
7+ years of professional software development experience
At least 3 years operating in a Senior or Lead Engineer capacity
Hands‑on experience building and supporting production‑grade, cloud‑native applications
Experience collaborating with distributed or offshore development teams
Preferred Experience
Building or modernizing partner portals or external‑facing systems
Greenfield development of enterprise platforms
Platforms that have evolved to incorporate AI‑assisted workflows
Education
Bachelor's degree in Computer Science, Software Engineering, Information Systems, or related field required
Master's degree in Computer Science, Software Engineering, Information Systems, or related field preferred
Preferred Certifications
Other relevant cloud or software engineering certifications
Work Schedule
Full time
Monday-Friday, 9:00AM to 6:00PM
Hybrid work model with first 90 days onsite and 2 days/week in office after in either:
South Windsor, CT
Charlotte, NC
Why RCN Capital
Growth‑oriented environment with opportunities to expand your legal skill set
Ongoing training and development
Casual dress policy
Free food and beverage program
And many additional perks
Equal Opportunity Employer
This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.
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Worksite address
windsor, CT, 06006, US
Who can apply
Review the original listing for work authorization, qualifications and employer requirements.