Job Title: Mid-Level Back-End Developer

Company Name: Yrefy LLC

Job Url: https://yrefy-llc.breezy.hr/p/783d3ddf6f82-mid-level-back-end-developer?utm_source=ziprecruiter

Job Description: Employees
Mid-Level Back-End Developer
Phoenix, AZFull-TimeTechnology
Job OpeningsMid-Level Back-End Developer
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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.

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