Senior Full-Stack .NET Lead | Azure & React Expert

Frontier Airlines, Inc.; Denver (CO); Hybrid; USD 123,000 - 164,000; Full time

Benefits offered by this job

Medical, dental and vision coverage

401(k) retirement savings options

Paid holidays, vacation time and sick

Travel privileges on Frontier Airlines

Buddy passes

Employee discounts

Hybrid schedule for HQ roles in Denver

Dress options for corporate roles

Employee support programs

Job summary

Frontier Airlines in Denver seeks a Senior Full Stack .NET Lead Developer with 10+ years of web development using C#, .NET, ASP.NET Core, React, Next.js, and Azure. You will lead architecture decisions, guide multi‑disciplinary teams, and own CI/CD practices in a cloud‑first environment.

You will collaborate with architects, PMs and QA to deliver high‑quality features for web, mobile and API services, while mentoring junior engineers and shaping standards across the stack.

Qualifications

• Bachelor's degree or equivalent in CS or related field.
• 12+ years of experience with the Microsoft stack (C#, .NET, ASP.NET Core, EF Core).
• Experience as a solution architect or technical lead.
• Expertise with React architecture and Next.js.
• 5+ years of Azure cloud experience, plus AWS knowledge.

Responsibilities

• Develop consumer-facing web, mobile, and API apps using C#, .NET, ASP.NET Core, Web API, React, React Native, Next.js, SQL Server, and Azure.
• Lead sprint planning and provide estimates for user stories.
• Review designs and code through peer reviews.
• Define and uphold architecture standards and security policies.
• Own CI/CD pipelines and deployments across environments.

Skills

C#

.NET

React

React Native

Next.js

Azure

AWS

Web API

SQL Server

CI/CD

GitHub Actions

Azure DevOps

API design

TypeScript

HTML

CSS

Education

Bachelor’s degree or equivalent

Tools

Visual Studio

Visual Studio Code

SQL Server

OpenAPI

OAuth 2.0

SSO

Azure DevOps Pipelines

GitHub Actions

Job description

Frontier Airlines in Denver seeks a Senior Full Stack .NET Lead Developer with 10+ years of web development using C#, .NET, ASP.NET Core, React, Next.js, and Azure. You will lead architecture decisions, guide multi‑disciplinary teams, and own CI/CD practices in a cloud‑first environment.

You will collaborate with architects, PMs and QA to deliver high‑quality features for web, mobile and API services, while mentoring junior engineers and shaping standards across the stack.