Full Stack Developer

Yrefy, LLC; Phoenix (AZ); On-site; USD 80,000 - 110,000; Full time

Benefits offered by this job

100% Employer Paid Medical for Employee and Whole Family

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

Job summary

Yrefy, LLC, located in Phoenix, Arizona, is looking for a Full Stack Developer to enhance and support its API and service functionalities. This role involves designing and maintaining high-performance code with an emphasis on collaboration across teams while ensuring clean architecture.

With a focus on RESTful APIs and microservices, candidates need 2–4 years of experience in C# and .NET, as well as familiarity with SQL Server. This is a full-time onsite position with flexible working hours and generous benefits including fully paid medical for employees and family.

Qualifications

• 2–4 years of professional experience in C# and .NET.
• Strong understanding of RESTful API design.
• Experience with SQL Server and performance tuning.

Responsibilities

• Design and maintain RESTful APIs and background services.
• Optimize data access and storage using Entity Framework.
• Collaborate with QA and UAT teams for production reliability.

Skills

C#

RESTful API design

.NET Core/.NET Framework

Microsoft SQL Server

TypeScript Framework

Azure services

CI/CD pipelines

Job description

Job Title: Full Stack Developer

Status: Full-time, On-site

Department: Technology

Reports to: Director of Engineering

About The Role

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.

Must be authorized to work in the U.S. (no visa sponsorship available).

Key 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, 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.

What You Bring

• 2–4 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.

What We Value

• 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.

What We Offer

• 100% Employer Paid Medical for Employee AND Whole Family (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.

Work Environment

This is a primarily onsite role with genuine flexibility. Core collaboration hours are 10 AM – 3 PM; manage your full schedule around that. Need a morning at home for an appointment? Handle it. We don’t track hours or micromanage — we hire professionals and treat them accordingly. We encourage experimentation, learning from mistakes, and continuous improvement across teams.