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Senior C# Developer Jobs (NOW HIRING)

Software Engineer Sr C/C++

Manassas, VA · On-site

$122K - $161K/yr

The Work Lockheed Martin Rotary and Mission Systems is seeking a Software Engineer C/C++ Sr. in ... Azure DevOps) to automatically compile, run unit/integration tests, and deliver builds for C/C ...

Software Engineer Sr C/C++

Manassas, VA

$122K - $161K/yr

The Work Lockheed Martin Rotary and Mission Systems is seeking a Software Engineer C/C++ Sr. in Manassas, VA. In this role you will have the responsibility of: Participate in a crossfunctional team ...

We are seeking a Sr. I&C Engineer to join our team in Bothell, WA. Our Engineering group in Bothell, WA USA is looking for a full-time experienced Senior Instrumentation and Controls (I&C) Engineer ...

We are seeking a Sr. I&C Engineer to join our team in Bothell, WA. Our Engineering group in Bothell, WA USA is looking for a full-time experienced Senior Instrumentation and Controls (I&C) Engineer ...

As a world leader in life science engineering and technical solutions, MTG has the knowledge and ... Collaborate with C&Q Engineers to develop and maintain commissioning and qualification procedures ...

MTG is recognized for its expertise in life sciences engineering, ensuring compliance with ... Support Commissioning and Qualification (C&Q) activities for plants and equipment. * Develop ...

Sr. P&C Engineer

$107K - $146K/yr

Senior Protection & Controls (P&C) Engineer - Remote Position Summary A fast-growing power engineering consulting firm is seeking a Senior Protection & Controls (P&C) Engineer to support a wide range ...

C++ Senior Developer Job Location: Remote (EST or CST preferred) # Positions: 1 Employment Type: C2H (contractors only) Duration: Long Term Key Technology: C++11, C++14, C++17, C++20, makefile, Linux ...

Senior C/C++ Linux Engineer

Philadelphia, PA · On-site

$123K - $163K/yr

Design, develop, and maintain real-time, fault-tolerant C/C++ applications on Linux platforms ... Expertise in event-driven programming and development of Linux desktop applications * Experience ...

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How much do senior c# developer jobs pay per hour?

As of Jun 29, 2026, the average hourly pay for senior c# developer in the United States is $61.73, according to ZipRecruiter salary data. Most workers in this role earn between $52.40 and $69.23 per hour, depending on experience, location, and employer.

What are some typical responsibilities and projects for a Senior C# Developer on a software development team?

Senior C# Developers are often responsible for designing, coding, and maintaining complex software applications while participating in architectural decisions and code reviews. They mentor junior developers, contribute to project planning, and collaborate closely with QA engineers, UI/UX designers, and product managers to deliver high-quality features and enhancements. Common projects may include developing RESTful APIs, integrating third-party services, optimizing application performance, and transitioning legacy systems to modern architectures. You can expect a balance of hands-on coding, technical leadership, and coordinating with various stakeholders to align software solutions with business needs.

What is a Senior C# Developer job?

A Senior C# Developer is an experienced software engineer who specializes in developing applications using the C# programming language within the .NET framework. They design, develop, and maintain complex software solutions while guiding junior developers and ensuring best coding practices. Responsibilities often include system architecture, performance optimization, and troubleshooting issues. Strong knowledge of object-oriented programming, databases, and cloud technologies is essential. Typically, they collaborate with cross-functional teams to deliver high-quality software solutions efficiently.

What are the key skills and qualifications needed to thrive in the Senior C# Developer position, and why are they important?

To thrive as a Senior C# Developer, you need advanced proficiency in C# and the .NET framework, strong problem-solving skills, and experience with software design patterns, typically backed by a bachelor's degree in computer science or related field. Familiarity with tools such as Visual Studio, source control systems like Git, and technologies such as SQL Server and cloud platforms is highly valued, as are certifications like Microsoft Certified: Azure Developer Associate. Excellent communication, mentorship, and teamwork abilities set outstanding candidates apart in this role. These skills and qualities are essential to deliver robust software solutions, guide junior developers, and collaborate effectively in dynamic development environments.

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Software Engineer Sr C/C++

Software Engineer Sr C/C++

Lockheed Martin

Manassas, VA • On-site

$122K - $161K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 3 days ago


Lockheed Martin rating

8.2

Company rating: 8.2 out of 10

Based on 387 frontline employees who took The Breakroom Quiz

30th of 60 rated aerospace companies


Job description


Who we are
Lockheed Martin is a global leader in aerospace, defense, and technology solutions. Our Manassas campus is a thriving center of engineering expertise, fostering a culture that encourages creativity, excellence, and the creation of exceptional products. Our team is made up of dedicated professionals who are passionate about pushing the boundaries of what's possible.
What We're Doing
At Lockheed Martin, we're at the forefront of cutting-edge technology and innovation. Our campus in Manassas, Virginia is a hub for engineering excellence, where we tackle some of the world's most challenging engineering problems. We pride ourselves on our culture of creativity, excellence, and product innovation.
The Work
Lockheed Martin Rotary and Mission Systems is seeking a Software Engineer C/C++ Sr. in Manassas, VA.
In this role you will have the responsibility of:
• Participate in a cross-functional team to evaluate a large, complex legacy code base, assess the current CI/CD pipeline, and create a strategic roadmap for modernizing the code to enable modular, rather than monolithic, builds.
• Work closely with stakeholders to validate and guarantee the end-to-end quality and effectiveness of all proposed enhancements.
• Identify technical obstacles stemming from technical debt or system requirements and develop pragmatic solutions to address them.
• Rapidly build expertise with existing LM catalog of shared CI/CD capabilities so that theses capabilities can be properly considered for integration into proposed build enhancements that will support modular builds.
Why Join Us
Your Health, Your Wealth, Your Life
Joining Lockheed Martin means becoming part of a team that's making a significant impact in the field of engineering. When you choose to work with us, you'll enjoy:
• An excellent working environment equipped with state-of-the-art tools.
• The opportunity to work alongside industry leaders and top-notch professionals.
• A chance to be a part of solving some of the world's most challenging engineering problems.
• A culture that encourages creativity, excellence, and the development of remarkable products.
If you're ready to take your career to the next level, work on groundbreaking projects, and be a part of a team that thrives on innovation, we encourage you to apply and be a part of our mission.
Our flexible schedules, competitive pay and comprehensive benefits enable you to live a healthy, fulfilling life at and outside of work.
Learn more about Lockheed Martin's competitive and comprehensive benefits package.
#WeAreLM
#WherethebestareBuilt
#OneLMHotJobs
#RMSC6ISR
#rmsusw
Basic Qualifications
The successful candidate should have the required skills:
• A Bachelor's degree in Computer Science, Software Engineering, Computer Engineering, or a comparable STEM discipline.
• Proficient in modern C/C++ (C++11/14/17+) with hands on development experience on Linux operating systems and command line toolchains.
• Daily user of CI/CD pipelines (e.g., Jenkins, GitLab CI, Azure DevOps) to automatically compile, run unit/integration tests, and deliver builds for C/C++ projects.
• Practical knowledge foundation in software engineering best practices: Git version control, code reviews, static analysis, and rapid debugging of build or test failures.
• Self-starter who takes initiative and drives tasks to completion, asking for and offering help when needed.
• Candidate must be able to obtain & maintain a U.S. Government SECRET Security Clearance, this requires U.S. Citizenship.
Desired skills
• Experience with GitLab and a variety of CI/CD pipeline strategies to streamline and accelerate software delivery.
• Demonstrated experience in architecting and designing large, complex legacy software systems, with deep hands on expertise in Java, C and/or C++.
• Experience in Automation & DevOps, including CI/CD definition, Infrastructure as Code (IaC), automated testing, and release pipeline construction.
• Interpersonal and communication abilities to enable collaboration across development, operations, security, and business teams, ensuring consistent adoption of architectural standards.
• Proven track record of designing, implementing, and delivering micro services solutions.
• Advanced problem solving skills with the ability to perform trade off analyses (e.g., cost vs. performance, time to market vs. quality).
• Expertise in API design and integration, including REST, gRPC, GraphQL, OpenAPI, and contract first approaches.
• Experience with static application security testing (SAST) tools such as Fortify or comparable solutions.
• Familiarity with binary management repositories (e.g., Artifactory, Nexus).
• Prior involvement with domestic programs at the Manassas, VA, site.
• Proficiency in modern software development methodologies, including Agile, Scrum, and DevOps practices.
EEO
Lockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.
The application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration.
*
Join us at Lockheed Martin, where your mission is ours. Our customers tackle the hardest missions. Those that demand extraordinary amounts of courage, resilience and precision. They're dangerous. Critical. Sometimes they even provide an opportunity to change the world and save lives. Those are the missions we care about.
As a leading technology innovation company, Lockheed Martin's vast team works with partners around the world to bring proven performance to our customers' toughest challenges. Lockheed Martin has employees based in many states throughout the U.S., and Internationally, with business locations in many nations and territories.
Other Important Information
By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings.
Work Schedule Information
Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits.
National Pay Statement
Pay Rate: The annual base salary range for this position in California, Massachusetts, and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, New Jersey, Vermont, Washington or Washington DC is $93,200 - $164,450. For states not referenced above, the salary range for this position will reflect the candidate's final work location. Please note that the salary information is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market and business considerations when extending an offer.
Benefits offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Paid time off, and Holidays.
(Washington state applicants only) Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays. Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year.
This position is incentive plan eligible.
Premium Pay Statement
Pay Rate: The annual base salary range for this position in most major metropolitan areas in California, Massachusetts, and New York is $107,300 - $185,840. For states not referenced above, the salary range for this position will reflect the candidate's final work location. Please note that the salary information is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market and business considerations when extending an offer.
Benefits offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Paid time off, and Holidays.
This position is incentive plan eligible.

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About Lockheed Martin

Sourced by ZipRecruiter

As a global security and aerospace company, the majority of Lockheed Martin's business is with the U.S. Department of Defense and U.S. federal government agencies.The remaining portion of Lockheed Martin's business is comprised of international government and commercial sales of products, services and platforms.

Industry

Manufacturing

Company size

10,000+ Employees

Headquarters location

Bethesda, MD, US

Year founded

1912