{"id":1198878,"url":"https://alion.io/job/leidos-software-engineer-c","title":"Software Engineer C++","company":{"id":7791,"name":"Leidos","domain":"leidos.com","url":"https://alion.io/company/leidos","size_band":"5000+","is_staffing_agency":true,"is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":90,"open_postings":82,"ghost_share":0,"stale_share":0.61,"repost_share":0,"time_to_fill_p50_days":21,"computed_at":"2026-09-24T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Tewksbury, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":87100,"max":157450,"currency":"USD","period":"year","gross":null,"usd_annual":157450},"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Agile","optional":true},{"name":"CI/CD","optional":true},{"name":"CUDA","optional":true},{"name":"CUDA Toolkit","optional":true},{"name":"Linux","optional":true},{"name":"OpenGL","optional":true},{"name":"Qt","optional":true},{"name":"Red Hat","optional":true},{"name":"Scrum","optional":true},{"name":"SQL","optional":true}],"status":"live","first_seen_at":"2026-09-24T19:43:10Z","employer_posted_date":"2026-09-24","last_verified_at":"2026-09-24T19:43:10Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Leidos is looking for a talented Software Engineer to support new product development at Security Enterprise Solutions.\nAs a Software Engineer on our diverse and collaborative team, you will work alongside our expert Scientists and Engineers who belong to cross functional discipline, contributing to Leidos products with global impact on aviation security screening. You’ll be honing your engineering skills with instrumentation domain products, real-time programming, and object-oriented design, all with the support of a management team focused on your professional growth and advancement.\nWorking under general supervision in a diverse team, your primary responsibility will be to develop, modify and troubleshoot multi-tiered distributed applications and systems. The duties and responsibilities may change from time to time without notice and include but are not limited to the duties described below.\nPrimary Responsibilities:\nDesign, build, and maintain efficient, reusable, and reliable C++ code using good OOP/OOAD techniques for our systems.\nOptimize, identify bottlenecks, bugs, and devise solutions to problems including:Maintain code quality, leverage and extend code, revision control and organization\nAnalyze customer issues and identify and implement solutions.\nParticipate and contribute within a defined software development process.\n\nOccasional travel to customer sites may be required. Travel may be domestic and international.\nBasic Qualifications:\nSoftware Engineering candidate shall participate in the design, development, testing, troubleshooting, and debugging of software programs for enhancements and new software-intensive systems and products. \nApplies appropriate principles, standards, processes, procedures, and tools throughout the software development life cycle. \nDuties include software requirements analysis, analysis of hardware compatibility, development of software products and tools used for design, development and maintenance of infrastructure, and platforms.\nTypical Education & Experience:\nDevelops solutions to complex technical issues and problems that impact multiple area or disciplines.\nRegularly employs ingenuity and creativity to develop new technical solutions and systems to achieve functional objectives.\nCommunicates with internal team members across multiple areas and client team members.\nWorks to influence project/team leaders regarding solution design, process and/or approaches.\nRequires expert knowledge of and ability to apply advanced technical principles, theories, and concepts.\nBachelor's degree with 4-8 years of relevant experience, or Master's degree with 2-6 years of relevant experience.\nWorking knowledge of C++ and OOP/OOAD\nUnderstanding of data structures, algorithms, and software design solutions.\nUnderstanding of memory management, multicore processors, and distributed systems design.\nExperience with TCP/UDP socket programming. \nPreferred Qualifications:\nGraphics Design, GUI development\nExperience writing/debugging socket programming.\nInterfacing with hardware and real-time debugging.\nExperience developing software with Linux based OS (RedHat distribution preferred) and Qt 5 or above programming language.\nGPU Programming with CUDA and/or OpenGL.\nGood working knowledge of SQL.\nWorking knowledge of Cybersecurity.\nWorking knowledge of networking solutions.\nWorking knowledge of DevOps and CI/CD pipeline.\nExperience with Scrum/Agile development methodologies.\nIf you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.\nOriginal Posting:\nSeptember 24, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.\nPay Range:\nPay Range $87,100.00 - $157,450.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.","description_format":"text","description_chars":4532,"description_truncated":false,"requirements":{"experience_years_min":4,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Equity"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Cybersecurity"],"lifecycle":[{"event":"open","at":"2026-09-24T19:43:10Z"}],"liveness":{"score":52,"band":"ok","label":"Likely open","p_open":1,"p_active":0.516,"p_room":1,"age_days":0,"expected_fill_days":21,"reasons":["conf:2","agency","win:early","comp:brand"],"computed_at":"2026-09-24T22:09:44Z"},"pay":{"stated_usd_annual":157450,"is_top_pay":false},"html_url":"https://alion.io/job/leidos-software-engineer-c","json_url":"https://alion.io/job/leidos-software-engineer-c.json","meta":{"generated_at":"2026-09-24T22:09:44Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":384,"day_limit":5000,"remaining_today":4616,"minute_limit":60,"resets_at":"2026-09-25T00:00:00Z"}}}