Join a collaborative engineering team delivering reliable, high-performance services for financial data systems. You’ll develop and maintain .NET APIs, integrate with internal and third-party systems, and help evolve our service architecture. Onsite in Phoenix with full family health coverage and flexible hours.
We’re seeking full stack engineers to expand our platform’s API and service capabilities. You’ll design, implement, and support high-performance, maintainable code that integrates cleanly across multiple modules and external systems. This role is hands-on: building production-grade code, reviewing pull requests, and helping shape our architectural standards. You’ll work closely with DevOps, QA, and UI teams to ensure seamless delivery. This is an ONSITE role in Phoenix with genuine flexibility. Core collaboration hours are 10 AM–3 PM — manage your schedule around that. We don’t track hours or micromanage — we hire professionals and treat them accordingly. You’ll work with experienced engineers who value clean design, accountability, and getting things done right.
Must be authorized to work in the U.S. (no visa sponsorship available)
- Design, build, and maintain RESTful APIs and background services in C#/.NET.
- Implement integrations with internal systems and external financial APIs.
- Optimize data access and storage using Entity Framework, SQL Server, and efficient query design.
- Follow and enforce clean architecture and code quality standards.
- Profile, tune, and refactor slow endpoints and database queries.
- Collaborate with QA and UAT teams to ensure production reliability.
- Participate in design sessions, code reviews, and sprint ceremonies.
- Communicate clearly across disciplines — UI, QA, DevOps, and Product.
- Contribute to team documentation and shared coding practices.
- 3–6 years professional experience in C# and .NET Core/.NET Framework.
- Strong understanding of RESTful API design and microservice patterns.
- Experience with Microsoft SQL Server, stored procedures, and performance tuning.
- Familiarity with Azure services (App Service, Key Vault, Service Bus, Functions).
- Experience integrating with CI/CD pipelines (Azure DevOps preferred).
- TypeScript Framework experience
- Strong debugging, analytical, and communication skills.
- Ability to balance shipping features with maintaining system stability.
- Problem solvers who propose solutions, not just identify issues.
- Self-awareness to spot gaps in your own work and communicate them.
- Professionals who meet realistic deadlines without hand-holding.
- 100% Employer Paid Medical for Employee AND Whole Family Includes the Mayo Clinic
- 401k/Roth Plan 4% Match with Immediate Vesting
- Dental Insurance
- Vision Insurance
- Company Paid Term Life Insurance
- Company Paid Short-and Long-Term Disability Insurance
- Voluntary Pet Discount Plan
- Fully Subsidized LifeTime Gym Membership*
- Student Loan Repayment
- Tuition Reimbursement
- Catered Friday Lunches
- Stocked Kitchens
- Opportunity to Work at a Fast-Growing Company
- Patent credit
- And More
Skills Required
- 3-6 years professional experience in C# and .NET Core/.NET Framework
- Strong understanding of RESTful API design and microservice patterns
- Experience with Microsoft SQL Server and performance tuning
- Familiarity with Azure services such as App Service and Functions
- Experience integrating with CI/CD pipelines
What We Do
Yrefy, LLC is a national specialty consumer finance lender, focusing explicitly on distressed private student loans. Our proprietary credit and risk tolerance model allows us to lend to the underserved, lower credit tranches. With Yrefy, student borrowers achieve financial independence and realize their financial goals.
