Senior .NET Engineer

Dynanet Corporation; Washington (District of Columbia); On-site; USD 90,000 - 130,000; Full time

Benefits offered by this job

Medical and Dental Insurance

Paid Time Off/Holidays

401(k) Retirement Plans with Matching

Paid Training

Employee Referral Program

Employee Development Program

Job summary

Dynanet Corporation is seeking an experienced Senior .NET Engineer to design, develop, and maintain scalable containerized cloud applications and backend services. You will build microservices, REST APIs, and APIs to support SPAs, with emphasis on 90% unit test coverage and robust CI/CD practices.

You will collaborate with QA and product teams, leverage tools like GitHub Copilot, and ensure security and quality standards in a fast-paced environment. Onsite in DC.

Qualifications

• 5+ years of development with .NET technologies.
• Hands-on experience building microservices and RESTful APIs with OpenAPI specs.
• .NET development tools and standards.
• Unit test development using xUnit or NUnit, and CI/CD with SonarQube.
• Agile software development practices.

Responsibilities

• Design and develop enterprise data and/or web apps using .NET Core.
• Develop and test backend apps to support API endpoints and frontends.
• Build and maintain data integrations, REST APIs, microservices, and web apps.
• Write unit tests achieving high coverage.
• Collaborate with QA, code reviews, and production releases.
• Participate in Agile ceremonies and backlog tracking.

Skills

.NET development

RESTful APIs

Unit testing

Entity Framework

OpenAPI specs

CI/CD pipelines

Agile software development

GitHub Copilot

Angular

PostgreSQL

Tools

GitHub Copilot

Kubernetes

GitHub Actions

OpenAPI

xUnit

NUnit

SonarQube

Entity Framework

PostgreSQL

Job description

Position Details:

Job Title: Senior .NET Engineer

Job Type: Full-time

Location: Onsite, DC

Dynanet Corporation Overview:

Dynanet started with a focus on IT infrastructure and operations, helping organizations enhance their networks and overcome the limitations of 1990s technology. From strengthening communication channels to introducing innovative ways to collaborate and share information, Dynanet played a crucial role in shaping the early stages of digital transformation. The company’s efforts helped organizations build the very fabric of connectivity that now powers our modern world. Over the last three decades, Dynanet has grown into a trusted partner for organizations looking to innovate boldly and transform seamlessly. While technology continues to evolve and unlock new opportunities, for nearly 30 years, Dynanet remains committed to delivering cutting-edge solutions that drive lasting change for its customers. Through agility, foresight, and an unwavering dedication to excellence, Dynanet continues to empower organizations to thrive in a rapidly changing digital landscape. Our story is more than just a story of technology – it’s a story of vision, growth, and transformation that has shaped the past and continues to pave the way for the future.

About the Role:

We are seeking an experienced .NET Engineer to design, develop, and maintain scalable containerized cloud applications while building backend solutions, microservices, and APIs to support business processes and single-page application frontends. You’ll be responsible for implementing product backlog items/stories and developing unit tests for your code, achieving 90% code coverage, and taking pride/ownership in the development of features. You’ll be responsible for working with Quality Engineering to troubleshoot and resolve defects related to your developed functionality. In addition to .NET, experience with xUnit or NUnit is required.

Roles & Responsibilities:

• Design and develop enterprise data and/or web applications using .NET Core
• Work with product and QA teams to develop and test backend applications to support API endpoints and frontend applications
• Build and maintain data integrations, REST APIs, microservices, and web applications
• Develop unit tests meeting the project’s minimum test coverage standards of 90%
• Use AI-assisted coding tools such as GitHub Copilot
• Ensure compliance with security requirements and team standards
• Perform code reviews, mentor fellow developers, and support production releases
• Participate in Agile team activities, including estimation, backlog item tracking and status, and Agile ceremonies

Preferred Professional Skills:

• Agentic software development (e.g., GitHub Copilot)
• Understanding of micro frontend (MFE) architecture and/or experience integrating .NET with Angular
• Experience with Entity Framework and PostgreSQL
• Experience with data serialization/deserialization and data mapping; Electronic Data Interchange (EDI) integration strongly preferred
• Containerized deployments to Kubernetes with GitHub Actions

Dynanet Team Requirements and Expectations:

• Possess Strong written and verbal communication skills.
• Highly organized with the ability to prioritize, balance, and effectively advance multiple competing priorities in a high-volume, fast-paced environment.
• Ability to interact in a professional and collaborative manner with fellow Dynanet Teammates and the clients, and business partners that we work with.
• Ability and desire to challenge and educate yourself to support and advance IT services delivery in the Federal agencies we serve.
• Excellent judgment and creative problem-solving skills.
• Respond to team member and client requests via email, MS teams, or other communication means during core business hours.
• Active listening skills to understand clients' needs, and collaboration skills to work with other developers and designers.

Education/Experience Requirements:

• 5+ years of development with .NET technologies
• Hands-on experience building microservices and RESTful APIs with OpenAPI specifications
• .NET development tools and standards
• Unit test development using .NET testing frameworks such as xUnit or NUnit, and CI/CD pipeline integration with SonarQube
• Agile software development practices

Employee Benefits Overview:

• Industry Competitive Compensation
• Medical and Dental Insurance
• Paid Time Off/Holidays
• 401(k) Retirement Plans with Matching
• Paid Training
• Employee Referral Program
• Employee Development Program