Senior C# Winforms Developer Jobs (NOW HIRING)

Standard 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
Plans, conducts, and coordinates software development activities. Designs, develops, documents, tests, and debugs software that contains logical and mathematical solutions to business/mission problems or questions in computer language for solutions by means of data processing equipment. Applies the appropriate standards, processes, procedures, and tools throughout the development life cycle. Applies knowledge of computer hardware and software, subject matter to be programmed in business/mission applications, information processing techniques used, and information gathered from system users to develop software. Corrects program errors, prepares operating instructions, compiles documentation of program development, and analyzes system capabilities to resolve questions of program intent, output requirements, input data acquisition, programming techniques, and controls. Ensures software standards are met.
Basic Qualifications
• 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
Proficient in AI prompting as it applies to this position and practice.
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
Pay Information
Full-Time Salary Range: $110300.00 - $204900.00
At Lockheed Martin, we know mission success starts with taking care of our people. Our Total Rewards program is designed to attract top talent, support your well-being, and help you grow-both professionally and personally.
The salary range for this position is as listed on the requisition. Please note that the salary information listed 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(work location) and business considerations when extending an offer.
Benefits offered: Medical, Dental, Vision, Flexible work arrangements and schedules (e.g., 4x10), 401(k) match, Paid time off, Holidays, Parental Leave, EAP, Flexible Spending Accounts, Education Assistance, Life Insurance, Short-Term Disability, and Long-Term Disability.

• Annual short-term and/or long-term incentive compensation programs may be offered depending on the position. Payments under these annual programs are not guaranteed and can vary from year to year and are tied to a range of performance metrics.
• For (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.