c# Jobs in Reston, VA

Refine Results
341 - 360 of 512 Jobs

Lead Software Engineer - Pega (Remote)

First-Citizens Bank & Trust Company

•

Remote or Raleigh, North Carolina, USA

Full-time

Overview This is a remote role that may be hired in several markets across the United States. We are seeking an experienced Pega Lead Software Engineer (LSA) to design, develop, and implement cutting-edge Pega-based solutions. The ideal candidate will lead architectural decisions, ensure best practices, and drive the success of Pega projects by collaborating with business and IT stakeholders. This role requires deep expertise in Pega PRPC, Case Management, and Decisioning, along with strong le
Posted 4 days ago | Updated 8 hours ago

Lead Software Engineer - Pega (Remote)

First-Citizens Bank & Trust Company

•

Remote or Raleigh, North Carolina, USA

Full-time

Overview This is a remote role that may be hired in several markets across the United States. We are seeking an experienced Pega Lead Software Engineer (LSA) to design, develop, and implement cutting-edge Pega-based solutions. The ideal candidate will lead architectural decisions, ensure best practices, and drive the success of Pega projects by collaborating with business and IT stakeholders. This role requires deep expertise in Pega PRPC, Case Management, and Decisioning, along with strong le
Posted 4 days ago | Updated 8 hours ago

Application Architect

Marsh & McLennan Companies

•

Remote or Washington, USA

Full-time

Company: Marsh McLennan Agency Description: Our not-so-secret sauce. Award-winning, inclusive, Top Workplace culture doesn't happen overnight. It's a result of hard work by extraordinary people. The industry's brightest talent drive our efforts to deliver purposeful work and meaningful impact every day. Learn more about what makes us different and how you can make your mark as an Application Architect at MMA. Marsh McLennan Agency (MMA) provides business insurance, employee health & benefits,
Posted 6 days ago | Updated 11 hours ago

Principal Software Engineer - REMOTE

DriveTime

•

Remote or Tempe, Arizona, USA

Full-time

What's Under the Hood DriveTime Family of Brands is the largest privately owned used car sales finance & servicing company in the nation. Headquartered in Tempe, Arizona and Dallas, Texas, we create opportunities and improve the lives of our customers and our employees by placing a focus on putting the right customer, in the right vehicle, on the right terms and on their path to ownership. The DriveTime Family of Brands spans across DriveTime, Bridgecrest and SilverRock. You can find us at th
Posted 59 days ago | Updated 8 hours ago

Senior IT Systems Solution Architect IV (System Architect)

General Dynamics

•

Remote

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Secret Clearance Level Must Be Able to Obtain: Secret Public Trust/Other Required: None Job Family: Systems Engineering Job Qualifications: Skills: Architecture Principles, Complex Systems, Complex Systems Design Certifications: None Experience: 10 + years of related experience ship Required: Yes Job Description: GDIT is the leading systems integrator in the Zero Trust Defense sector market-developing and delivering inn
Posted 13 days ago | Updated 11 hours ago

Senior Software Engineer - .NET

Guardian Life Insurance Company

•

Remote or Holmdel, New Jersey, USA

Full-time

We are actively seeking a proactive, creative Senior Software Engineer who will be responsible for architectural design and implementation of Guardian's next-generation web self-service platforms APIs using .Net Core, C#. You will: Design, develop, and deploy high-volume, high-usage self-service web portals APIs, utilizing .Net Core, C#.Collaborate with Technical Teams, Technical Manager, Project Manager and subject matter experts from businesses and work closely with SMEs to understand, plan a
Posted 52 days ago | Updated 11 hours ago

Senior Database Platform Engineer

Dimensional Fund Advisors LP

•

Remote

Full-time

Notes to applicants: Dimensional sees great value from collaborating in our offices and appreciates the benefits of flexibility. Most roles fit our office-first hybrid approach: We are together on our campuses Tuesdays, Wednesdays, and Thursdays and have the choice to work in the office or remotely, depending on what is best for that work day, on Mondays and Fridays. This approach maximizes in-person collaboration and interaction while simultaneously providing flexibility and applies to most rol
Posted 55 days ago | Updated 11 hours ago

Mid-Level Backend Developer

Boeing Company

•

Remote or Long Beach, California, USA

Full-time

Mid-Level Backend Developer Company: The Boeing Company The Boeing Company is currently seeking a Mid-Level Backend Developer to join the team in Long Beach, CA. We are looking for a talented Mid-Level Backend Developer to join our high-performance team. The ideal candidate will have a strong understanding of server-side programming and experience with backend technologies. You will be responsible for building and maintaining the server-side logic, ensuring high performance and responsiveness
Posted 1 day ago | Updated 11 hours ago

Principal Software Engineer - Cloud Engineering (Remote)

Publix

•

Remote or Lakeland, Florida, USA

Full-time

Publix Super Markets, Inc. is the largest privately-owned food retailer in the nation with more than 1,200 stores and more than 200,000 associates throughout the Southeast. We are associate-owned, proud of our family atmosphere, and consistently named as one of the best companies to work for in America. We are largely debt-free and renowned for our financial performance as well as our premier customer service. Publix?s Information Services (I/S) department is located in Lakeland, Florida and Alp
Posted 15 days ago | Updated moments ago

Staff Software Engineer - Hardware Integration (Remote)

Becton Dickinson & Company

•

Remote or San Diego, California, USA

Full-time

Job Description Summary Job Description We are the makers of possible BD is one of the largest global medical technology companies in the world. Advancing the world of health is our purpose, and it's no small feat. It takes the imagination and passion of all of us - from design and engineering to the manufacturing and marketing of our billions of MedTech products per year - to look at the impossible and find transformative solutions that turn dreams into possibilities. We believe that the hu
Posted 2 days ago | Updated 11 hours ago

Cloud Native .NET Engineer with AI Integration Focus

EPAM Systems

•

Remote

Full-time

We seek a highly skilled .NET Engineer with cloud expertise and a strong focus on integrating AI capabilities into projects. The ideal candidate will possess robust proficiency in .NET, coupled with a deep understanding of at least one major cloud provider. Additionally, familiarity with GenAI, Large Language Models (LLM), and Retrieval Augmented Generation (RAG) is essential for seamlessly integrating AI capabilities. To discover more about .NET practice at EPAM, visit this page . This positi
Posted 60+ days ago | Updated 3 days ago

NC DEQ - Power Platform Developer

Mahantech Corporation

•

Remote or Raleigh, North Carolina, USA

Full-time, Part-time, Contract, Third Party

Engagement Type Contract Short Description As a part of the NC DEQ Permitting Transformation Program (PTP), Power Platform Developers work with technical teams, subject matter experts, and business stakeholders to analyze business requirements and translate requirements into functionality. Complete Description The candidate will be allowed to work remotely until all staff return to site. At that point the candidate will be required to come onsite. The agency can ship equipment if the candida
Easy Apply
Posted 60+ days ago | Updated 8 hours ago

Sr. Software Engineer - Security Development and Integration

Publix

•

Remote or Lakeland, Florida, USA

Full-time

Publix Super Markets, Inc. is the largest privately-owned food retailer in the nation with more than 1,200 stores and more than 200,000 associates throughout the Southeast. We are associate-owned, proud of our family atmosphere, and consistently named as one of the best companies to work for in America. We are largely debt-free and renowned for our financial performance as well as our premier customer service. Publix?s Information Services (I/S) department is located in Lakeland, Florida and Alp
Posted 3 days ago | Updated moments ago

ARCS Solution Engineer Senior - Principal

American Electric Power

•

Remote or Columbus, Ohio, USA

Full-time

Job Posting End Date 07-25-2025 Please note the job posting will close on the day before the posting end date Job Summary Part of a larger team delivering high quality technology solutions to the business. Design, develop and install software solutions. Build high-quality, innovative and fully performing software in compliance with internal architecture, development & design standards & best practices. Design, modify, develop, write, implement and troubleshoot software programming applications.
Posted 37 days ago | Updated 11 hours ago

Senior Software Engineer - Full Stack (Remote)

Donnelley Financial Solutions

•

Remote

Full-time

Join a dynamic team at the pulse of global markets, where we deliver innovative software and service solutions for essential financial reporting and capital markets transactions. At DFIN, we are a values-driven organization that empowers you to build a fulfilling career while bringing your authentic self to work every day. Our "Win as One" mentality ensures that our team's success is directly linked to Client, Shareholder and Employee Satisfaction. Recognized by Newsweek as one of AMERICA'S MOST
Posted 21 days ago | Updated 11 hours ago

Lead Software Engineer - Supply Chain Replenishment

Publix

•

Remote or Lakeland, Florida, USA

Full-time

Publix Super Markets, Inc. is the largest privately-owned food retailer in the nation with more than 1,200 stores and more than 200,000 associates throughout the Southeast. We are associate-owned, proud of our family atmosphere, and consistently named as one of the best companies to work for in America. We are largely debt-free and renowned for our financial performance as well as our premier customer service. Publix?s Information Services (I/S) department is located in Lakeland, Florida and Alp
Posted 39 days ago | Updated moments ago

Software Engineer - Desktop and Mobile Applications - Roon

Harman International

•

Connecticut, USA

Full-time

A Career at HARMAN As a technology leader that is rapidly on the move, HARMAN is filled with people who are focused on making life better. Innovation, inclusivity and teamwork are a part of our DNA. When you add that to the challenges we take on and solve together, you'll discover that at HARMAN you can grow, make a difference and be proud of the work you do every day. About the Role At Roon, we are at the forefront of revolutionizing the way people experience music. Since our inception, we h
Posted 60+ days ago | Updated 11 hours ago

Associate Software Engineer

S&P Consultants

•

Remote or New York, New York, USA

Full-time

About the Role: Grade Level (for internal use): 08 As an Associate Software Engineer based out of our New York City Headquarters, you will join a team that is composed of highly skilled and supportive individuals, with each engineer contributing uniquely to serve our U.S.-based car dealers and manufacturers. The development team oversees and takes ownership of the entire system development life cycle. Job Responsibilities: Take ownership of assigned tasks, both in terms of timeliness and soft
Posted 60+ days ago | Updated 11 hours ago

QE Lead Performance Engineer

Marsh & McLennan Companies

•

Remote or White Plains, New York, USA

Full-time

Company: Marsh McLennan Agency Description: Our not-so-secret sauce. Award-winning, inclusive, Top Workplace culture doesn't happen overnight. It's a result of hard work by extraordinary people. The industry's brightest talent drive our efforts to deliver purposeful work and meaningful impact every day. Learn more about what makes us different and how you can make your mark as a QE Lead Performance Engineer at MMA. Marsh McLennan Agency (MMA) provides business insurance, employee health & be
Posted 5 days ago | Updated 11 hours ago

QE Lead Engineer

Marsh & McLennan Companies

•

Remote or White Plains, New York, USA

Full-time

Company: Marsh McLennan Agency Description: Our not-so-secret sauce. Award-winning, inclusive, Top Workplace culture doesn't happen overnight. It's a result of hard work by extraordinary people. The industry's brightest talent drive our efforts to deliver purposeful work and meaningful impact every day. Learn more about what makes us different and how you can make your mark as a QE Lead Engineer at MMA. Marsh McLennan Agency (MMA) provides business insurance, employee health & benefits, reti
Posted 5 days ago | Updated 11 hours ago