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Principal Software Engineer (.NET)

Genesis10
life insurance, 401(k)
United States, New York, New York
950 3rd Avenue (Show on map)
Jun 05, 2025
Genesis10 is seeking a Principal Software Engineer (.NET) - Modern Stack for a direct hire position with a client located in New York, NY. This position can be Remote (US) OR the following office locations: New York, NY, Naperville, IL, Irving, TX, Bedford, MA, Rockville, MD.
Summary:
The Principal Software Engineer is an individual contributed and an expert full-stack developer on an Agile team who is primarily responsible for defining and building software in support of one or more business products. The incumbent will lead a diverse group of Software Engineers and work closely with the Architects to design, develop, and test highly available, secure, and scalable systems.
Job Role and Responsibilities:


  • Responsible for producing stable and high performing applications from scratch
  • Work in Agile methodologies and contribute toward the entire lifecycle of a user story with particular emphasis on coding, unit testing and deployment pipeline automation
  • Work with other developers on the team to define high level technical design and follow overall architectural guidelines
  • Willing to work in a developer focused team with minimal support from QA
  • Research and learn new technologies and processes as part of continuous improvement
  • Contribute towards fostering a high performant and self organized team
  • Clearly communicate potential and real issues to the team and propose solutions to resolve them
  • Work as a contributor on one or more technical practice groups
  • Mentor junior software engineers on the team
  • Be a champion of core culture
  • Ensure compliance with HIPAA regulations and requirements



Mandatory Job Skills Requirement:

  • Hands on experience with ASP.Net, .NET Core, C#, Web API, MVC, SQLServer
  • Hands on experience building UI applications with React
  • Experience working with any top cloud providers (Azure/AWS/OCI)
  • Experience working with Microservices architecture with thorough understanding of Bounded contexts (DDD)
  • Demonstrated Experience with Message brokers (Preferably Azure Service Bus/RabbitMQ) in implementing event driven applications
  • Experience with containerized applications with Kubernetes and Helm charts
  • Experience guiding the team with TDD/BDD practices and maintaining code coverage
  • Experience on writing automated tests with any testing framework
  • Working knowledge on modern DevSecOps practices. Experience creating/maintaining DevOps pipelines and best practices.
  • Experience working on relational and non-relational database queries and procedures
  • Experience with Data access patterns preferably EFCore ORM tool.
  • Good knowledge on design patterns and integration patterns including Microservices
  • Experience with Authentication and Authorization best practices
  • Experience with GitHub/GIT best practices
  • Excellent Communication skills
  • Strong Troubleshooting skills




Desirable:


  • Experience extracting Microservices out of monolith applications
  • Experience writing automated unit tests with SpecFlow framework
  • Experience working on Agile development project
  • Experience with PostgreSQL database




Qualifications for the role include:


  • 8+ years of progressive software experience in relevant technologies and 3+ years as a lead
  • Computer related Bachelor's degree is preferred or equivalent work experience in software development




The annual salary range for this position is $135K - $140K

If you have the described qualifications and are interested in this exciting opportunity, apply today!

Genesis10

Ranked a Top Staffing Firm in the U.S. by Staffing Industry Analysts for six consecutive years, Genesis10 puts thousands of consultants and employees to work across the United States every year in contract, contract-for-hire, and permanent placement roles. With more than 300 active clients, Genesis10 provides access to many of the Fortune 100 firms and a variety of mid-market organizations across the full spectrum of industry verticals.

For contract roles, Genesis10 offers the benefits listed below. If this is a perm-placement opportunity, our recruiter can talk you through the unique benefits offered for that particular client. Benefits of Working with Genesis10:


  • Access to hundreds of clients, most who have been working with Genesis10 for 5-20+ years.
  • The opportunity to have a career-home in Genesis10; many of our consultants have been working exclusively with Genesis10 for years.
  • Access to an experienced, caring recruiting team (more than 7 years of experience, on average.)
  • Behavioral Health Platform
  • Medical, Dental, Vision
  • Health Savings Account
  • Voluntary Hospital Indemnity (Critical Illness & Accident)
  • Voluntary Term Life Insurance
  • 401K
  • Sick Pay (for applicable states/municipalities)
  • Commuter Benefits (Dallas, NYC, SF)
  • Remote opportunities available



For multiple years running, Genesis10 has been recognized as a Top Staffing Firm in the U.S., as a Best Company for Work-Life Balance, as a Best Company for Career Growth, for Diversity, and for Leadership, amongst others. To learn more and to view all our available career opportunities, please visit us at our website.
Genesis10 is an Equal Opportunity Employer. Candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.
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