Full Stack Developer - .NET

Role Purpose Reporting to the VP, Solutions & Delivery, we are looking for a talented and motivated Full Stack Developer – .NET to join our development team. The ideal candidate will have strong experience building scalable, secure, and high-performance web applications using the Microsoft .NET ecosystem, along with modern front-end technologies. You will be responsible for designing, developing, testing, deploying, and maintaining end-to-end applications while working closely with product managers, business analysts, QA engineers, DevOps teams, and other developers.

Core Responsibilities

Design, develop, and maintain full-stack web applications using C#, .NET / .NET Core, ASP.NET Core, and Web API.

Build responsive and user-friendly front-end applications using React, Angular, Blazor, or similar modern JavaScript/C# frameworks.

Develop scalable RESTful APIs and integrate third-party services and enterprise systems.

Design and optimize relational databases using SQL Server, including tables, stored procedures, views, functions, and queries.

Implement secure authentication and authorization using technologies such as OAuth 2.0, OpenID Connect, JWT, and ASP.NET Core Identity.

Process and transform large fixed-width and delimited (CSV/flat) input files as part of data integration and batch workflows.

Generate large, well-structured XML output and associated XSD schemas for downstream systems and partners.

Integrate with document/PDF generation platforms such as Quadient, Exstream, or SmartCOMM to support customer communications.

Write clean, maintainable, reusable, and well-tested code following established coding standards and design patterns.

Participate in architecture and technical design discussions and contribute to application modernization initiatives.

Develop unit, integration, and automated tests to ensure application quality and reliability.

Troubleshoot and resolve application defects, performance issues, and production incidents.

Work with DevOps teams to support CI/CD pipelines, automated deployments, monitoring, and cloud infrastructure.

Collaborate with cross-functional teams to understand requirements and translate them into technical solutions.

Conduct code reviews and provide constructive feedback to team members.

Create and maintain technical documentation, API documentation, and development standards.

Stay current with emerging technologies and recommend improvements to development practices and application architecture.

Required Qualifications Backend

Strong proficiency in C#

Hands-on experience with .NET / .NET Core

Strong experience with ASP.NET Core

Experience developing RESTful Web APIs

Knowledge of Entity Framework Core

Understanding of dependency injection, middleware, configuration, logging, and application lifecycle

Good understanding of object-oriented programming and SOLID principles

Experience with common design patterns and clean architecture principles

Experience processing large fixed-width and delimited input files

Experience generating large XML files and XSD schemas

Experience integrating with PDF generation software such as Quadient, Exstream, SmartCOMM, or similar

Frontend

Strong experience with JavaScript / TypeScript

Hands-on experience with at least one modern framework: React, Angular, Vue.js, or Blazor (C#-based)

Strong knowledge of HTML5, CSS3, and responsive web design

Experience consuming REST APIs and handling client-side state

Familiarity with frontend build tools and package managers such as npm

Database

Strong experience with Microsoft SQL Server

Proficiency in writing complex SQL queries

Experience with stored procedures, functions, views, indexes, and query optimization

Understanding of database design, normalization, transactions, and performance tuning

Experience with Entity Framework Core or another ORM

Cloud & DevOps

Experience with Microsoft Azure or another major cloud platform

Familiarity with Azure services such as Azure App Service, Azure Functions, Azure SQL, Azure Storage, Azure Key Vault, and Azure Service Bus

Experience with CI/CD pipelines

Familiarity with Git-based source control and branching strategies

Experience with Docker and containerization is a plus

Understanding of application monitoring, logging, and observability

Testing & Quality

Experience with unit testing using frameworks such as xUnit, NUnit, or MSTest

Understanding of integration and API testing

Familiarity with mocking frameworks such as Moq

Experience with automated testing and continuous integration

Strong understanding of secure coding and application performance practices

Preferred Skills

Experience with microservices architecture

Knowledge of Azure DevOps or GitHub Actions

Experience with Docker and Kubernetes

Knowledge of messaging technologies such as Azure Service Bus, RabbitMQ, or Kafka

Experience with Redis or other caching technologies

Knowledge of GraphQL is a plus

Familiarity with Elasticsearch or similar search technologies

Experience with Agile/Scrum development methodologies

Understanding of Domain-Driven Design (DDD)

Experience with application performance monitoring tools

Knowledge of AI/ML integrations or consuming LLM APIs is a plus

Qualifications

Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related field, or equivalent practical experience.

3–7+ years of professional software development experience, depending on level.

Strong hands-on experience with the .NET ecosystem and modern frontend development.

Demonstrated experience delivering production-grade web applications.

Strong analytical, problem-solving, and debugging skills.

Excellent communication and collaboration skills.

What We're Looking For

A strong problem solver with excellent attention to detail.

Comfortable working across both frontend and backend technologies.

Able to take ownership of features from requirements through deployment.

Passionate about writing clean, maintainable, and scalable code. Comfortable working in a collaborative Agile environment.Able to communicate technical concepts effectively to both technical and non-technical stakeholders. Typical Technology Stack

Backend: C#, .NET 8/9+, ASP.NET Core, Web API, Entity Framework Core

Frontend: React / Angular / Blazor, TypeScript, JavaScript, HTML5, CSS3

Database: Microsoft SQL Server

Cloud: Microsoft Azure

DevOps: Azure DevOps / GitHub Actions, CI/CD, Docker

Testing: xUnit / NUnit, Moq, Postman

Version Control: Git / GitHub / Azure Repos

Architecture: REST APIs, Microservices, Clean Architecture, SOLID, Design Patterns

Data & Documents: Fixed-width & delimited file processing, XML/XSD generation, PDF/document composition (Quadient, Exstream, SmartCOMM)

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