Mid-Level .NET Back-End Engineer — Onsite Phoenix

Yrefy LLC; Phoenix (AZ); On-site; USD 81,000 - 99,000; Full time

Benefits offered by this job

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

Job summary

A leading financial services firm is seeking a Mid-Level Back-End Developer in Phoenix to design and maintain high-performance APIs. This hands-on role involves building production-grade code and collaborating with various teams to ensure seamless service delivery. Ideal candidates will have 3-6 years of experience in C#/.NET, RESTful API design, and Azure DevOps. The company offers competitive pay and comprehensive benefits, including full family health coverage, and emphasizes a flexible work environment.

Qualifications

• 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).
• Competence with Git, branching strategies, and pull requests.
• Experience integrating with CI/CD pipelines (Azure DevOps preferred).
• Strong debugging, analytical, and communication skills.
• Ability to balance shipping features with maintaining system stability.

Responsibilities

• 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 and SQL Server.
• Profile, tune, and refactor slow endpoints and database queries.
• Contribute to CI/CD pipelines and deployment automation via Azure DevOps.
• 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.

Skills

C# and .NET Core/.NET Framework

RESTful API design

Microsoft SQL Server

Azure services

Git

CI/CD pipelines

Debugging

Analytical skills

Communication

Job description

A leading financial services firm is seeking a Mid-Level Back-End Developer in Phoenix to design and maintain high-performance APIs. This hands-on role involves building production-grade code and collaborating with various teams to ensure seamless service delivery. Ideal candidates will have 3-6 years of experience in C#/.NET, RESTful API design, and Azure DevOps. The company offers competitive pay and comprehensive benefits, including full family health coverage, and emphasizes a flexible work environment.