Full Stack Developer

Mondo; Philadelphia (Philadelphia County); Hybrid; USD 69,000 - 96,000; Full time

Benefits offered by this job

Health insurance

Dental insurance

Vision insurance

401K

Job summary

Mondo is seeking a Full Stack Developer to build and maintain modern web applications and API services, supporting a major cloud migration initiative across a large enterprise environment.

You will work on Vue / Nuxt front-ends, C# / .NET middleware, and SQL data layers, design RESTful APIs with ASP.NET Core, and contribute to migrating to Azure. This hybrid Philadelphia-based contract-to-hire role starts ASAP with a 6-9 month commitment.

Qualifications

• 3–8 years of professional software development in full-stack roles.
• Local to the tri-state area around Philadelphia.
• Proven experience designing and building RESTful APIs with C# and .NET (ASP.NET Core).
• Strong SQL skills with SQL Server and/or Oracle.
• Solid front-end experience with Vue / Nuxt and modern JavaScript/TypeScript.

Responsibilities

• Build and maintain full-stack features spanning Vue / Nuxt front-ends, C# / .NET middleware, and relational SQL data layers
• Design, develop, and maintain RESTful APIs and middleware services using C# and ASP.NET Core
• Write and optimize SQL queries across relational databases, including SQL Server and Oracle
• Develop responsive, accessible user interfaces using Vue / Nuxt and modern JavaScript / TypeScript
• Contribute to migrating applications and services to Azure, refactoring legacy code toward cloud-native patterns
• Write clean, testable, and well-documented code and participate in team code reviews
• Troubleshoot and resolve issues across the full stack, from UI to database

Skills

C#/.NET

SQL databases

Vue.js / Nuxt

RESTful APIs

JavaScript / TypeScript

Azure Cloud

Git / CI-CD

Azure DevOps

OAuth/OpenID

Tools

Azure DevOps

Docker

Kubernetes

Job description

Job Title: Full Stack Developer (.NET / Vue)

Location-Type: Hybrid onsite in Philadelphia, PA. Must reside local in the tri-state area to Philadelphia, PA - relocation is not available at this time

Start Date: ASAP

Duration: Contract-to-Hire, 6-9 months

Compensation Range: $50-70/hr W2

Benefits: Eligible for Health, Dental, Vision, and 401K

Visa Sponsorship: Not eligible for visa sponsorship

Job Description

The client is seeking a Full Stack Developer to build and maintain modern web applications and API services while supporting a major cloud migration initiative across a large enterprise environment.

Start date is ASAP for this 6-9 month Contract-to-Hire position.

Job Summary

• Build and maintain full-stack features spanning Vue / Nuxt front-ends, C# / .NET middleware, and relational SQL data layers
• Design, develop, and maintain RESTful APIs and middleware services using C# and ASP.NET Core
• Write and optimize SQL queries across relational databases, including SQL Server and Oracle
• Develop responsive, accessible user interfaces using Vue / Nuxt and modern JavaScript / TypeScript
• Contribute to migrating applications and services to Azure, refactoring legacy code toward cloud-native patterns
• Write clean, testable, and well-documented code and participate in team code reviews
• Troubleshoot and resolve issues across the full stack, from UI to database

Minimum Requirements

• 3-8 years of professional software development experience with a true development focus, not primarily support or troubleshooting
• Must reside local in the tri-state area to Philadelphia, PA - relocation is not available at this time
• Strong proficiency in C# and .NET (.NET 6 / 8 / 10, ASP.NET Core) with demonstrated experience designing and building RESTful APIs
• Strong SQL skills and hands-on experience with relational databases (SQL Server and / or Oracle preferred)
• Solid front-end experience with Vue / Nuxt or a comparable modern JavaScript framework with willingness to work in Vue / Nuxt
• Proficiency with HTML, CSS, and modern JavaScript / TypeScript
• Proficiency with Git, modern source-control workflows, and CI / CD practices (Azure DevOps or similar)
• Working knowledge of API and web security fundamentals, including OAuth 2.0, OpenID Connect, and token-based authentication

Preferred Qualifications

• Experience with the broader Vue ecosystem, including Pinia, Vue Router, and Vite
• Familiarity with component libraries or design systems such as Vuetify, PrimeVue, or Tailwind CSS
• Front-end testing experience using tools such as Vitest, Cypress, or Playwright
• Azure experience, particularly migrating legacy or on-prem applications to cloud-native environments
• Familiarity with containerization and orchestration (Docker, Kubernetes / AKS)
• Experience with event-driven or messaging architecture (Azure Service Bus, Event Grid, or Event Hubs)
• Experience in Agile / Scrum environments with domain-driven design and automated testing practices