Full Stack Developer

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

Who We Are

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.

Mid-Level Back-End Developer

Location: Phoenix, AZ
Department: Software Development
Type: Full-time (Onsite, with flexible hours)
Compensation: Starting at $90,000/year

About the Role

We’re seeking five Mid-Level Back-End Developers 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.

Key Responsibilities

API & Service Development

• 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, SOLID principles, and code quality standards.

Performance & Reliability

• 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.

Collaboration & Growth

• 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

• 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.

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

Work Environment

This is a primarily 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.