Sr Software Engineer

Sr Software Engineer! Job Description We are seeking a highly skilled Sr Software Engineer to join our team supporting mission-critical systems for Navy and DoD programs. This role focuses on designing and integrating high-performance software components in distributed environments using Java and C/C++ on Linux platforms. Responsibilities + Design, develop, and integrate software components using Java and C/C++ in a Linux OS environment. + Implement and optimize Linux/Unix socket programming for high-performance communications. + Develop and integrate middleware technologies such as gRPC, Google Protocol Buffers, and DDS. + Architect and implement publish-subscribe communication patterns for distributed systems. + Collaborate on computer networking tasks including protocol design, diagnostics, and performance tuning. + Apply common design patterns in Java and C++ to ensure scalable and maintainable code. + Utilize containerization technologies (e.g., Docker) and build infrastructure tools such as Gradle and CMake. + Participate in research, whitepapers, system rearchitecture planning, design reviews, and technical deep-dives with government and program stakeholders. Essential Skills + Bachelor's degree in Computer Science or related field. + 5+ years of experience in software development with C++ and/or Java. + Experience working in Linux environments and socket programming. + Experience with DDS middleware frameworks. + Eligible for Secret Clearance (must have before start). Additional Skills & Qualifications + Experience with publish-subscribe architectures and distributed systems. + Understanding of computer networking principles. + Experience with containerization and modern build systems (Gradle, CMake). + Prior experience supporting Navy or DoD programs. + Experience with legacy system modernization and system-of-systems integration. + Experience with CI/CD pipelines and DevSecOps practices. Work Environment This role will be 100% on site at the facility in Manassas, VA. These labs are secure, so personal phones are not permitted inside, but they are equipped with windows. Job Type & Location This is a Permanent position based out of Manassas, VA. Pay and Benefits The pay range for this position is $70.00 - $95.00/hr. Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: - Medical, dental & vision - Critical Illness, Accident, and Hospital - 401(k) Retirement Plan - Pre-tax and Roth post-tax contributions available - Life Insurance (Voluntary Life & AD&D for the employee and dependents) - Short and long-term disability - Health Spending Account (HSA) - Transportation benefits - Employee Assistance Program - Time Off/Leave (PTO, Vacation or Sick Leave) Workplace Type This is a fully onsite position in Manassas,VA. Application Deadline This position is anticipated to close on Nov 27, 2025. About Actalent Actalent is a global leader in engineering and sciences services and talent solutions. We help visionary companies advance their engineering and science initiatives through access to specialized experts who drive scale, innovation and speed to market. With a network of almost 30,000 consultants and more than 4,500 clients across the U.S., Canada, Asia and Europe, Actalent serves many of the Fortune 500. The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law. If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing due to a disability, please email [email protected] (%[email protected]) for other accommodation options.