{"id":190679,"url":"https://alion.io/job/ensono-expert-software-engineer","title":"Expert Software Engineer","company":{"id":3084,"name":"Ensono","domain":"ensono.com","url":"https://alion.io/company/ensono","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":84,"open_postings":10,"ghost_share":0,"stale_share":0.6,"repost_share":0.1,"time_to_fill_p50_days":41,"computed_at":"2026-10-21T05:46:15Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":["United States"],"countries":["US"],"hiring_countries":["US"],"hiring_countries_total":1,"salary":{"min":130000,"max":188000,"currency":"USD","period":"year","gross":null,"usd_annual":188000},"salary_estimate":null,"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"C++","optional":false},{"name":"CI/CD","optional":false},{"name":"CICS","optional":false},{"name":"CMake","optional":false},{"name":"COBOL","optional":false},{"name":"Db2","optional":false},{"name":"Docker","optional":false},{"name":"Git","optional":false},{"name":"GitHub Actions","optional":false},{"name":"GitLab CI","optional":false},{"name":"JCL","optional":false},{"name":"Jenkins","optional":false},{"name":"Linux","optional":false},{"name":"Python","optional":false},{"name":"SQL","optional":false},{"name":"Valgrind","optional":false},{"name":"C","optional":true}],"status":"live","first_seen_at":"2026-09-02T00:00:00Z","employer_posted_date":null,"last_verified_at":"2026-09-02T00:00:00Z","board_verified":false,"closed_at":null,"days_open":50,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":50},"description":"Roles & Responsibilities\nArchitect, develop, and maintain complex, high-performance applications in C++ (C++11/14/17/20 and beyond)\n\nTake ownership of critical system components with a focus on reliability, scalability, and performance\n\nDesign and implement solutions involving advanced memory management and concurrent/multithreaded architecture\n\nLead code reviews and enforce coding standards and best practices across the team\n\nDefine and maintain CMake -based build systems and manage multi-platform build configurations\n\nDesign and maintain CI/CD pipelines and Docker -based containerisation workflows\n\nDiagnose and resolve complex issues using tools such as GDB and Valgrind; lead performance profiling and tuning initiatives\n\nCollaborate with cross-functional teams in a Linux -based development environment\n\nContribute to and maintain automation scripts using Python and shell scripting\n\nInteract with relational data sources using SQL where required\n\nManage source code, branching strategies, and release workflows using Git\n\nMentor junior and mid-level engineers; drive technical growth across the team\n\nParticipate in system design discussions, technical planning, and effort estimation\n\nRequired Skills & Experience Technical\n 10+ years of experience in Mainframe Skills COBOL, CICS, JCL, DB2 and VSM\n· Expert understanding of dynamic memory allocation, RAII, smart pointers (unique_ptr, shared_ptr, weak_ptr)\n· Experience diagnosing and resolving memory leaks, dangling pointers, and buffer overflows\n· Familiarity with custom allocators and memory pool strategies\n· Strong command of the C++ threading model (std::thread, std::mutex, std::atomic, std::condition_variable)\n· Experience with lock-free and wait-free programming patterns\n· Ability to identify and resolve race conditions, deadlocks, and thread-safety issues\n· Expert-level experience with CMake for cross-platform build configuration\n· Proficiency with Docker for containerised development and deployment environments\n· Hands-on experience designing and maintaining CI/CD pipelines (e.g., Jenkins, GitLab CI, GitHub Actions)\n· Advanced use of GDB for low-level debugging and post-mortem analysis\n· Proficiency with Valgrind (Memcheck, Helgrind, Callgrind) for memory and thread analysis\nQualifications:\nBachelor's or master’s degree in computer science, Software Engineering, or a related technical discipline\nEquivalent industry experience will be considered in lieu of formal education\nSoft Skills: Excellent problem-solving and analytical skills. Strong communication and interpersonal skills. Ability to work independently and as part of a team.\nWhy Ensono?\nEnsono is a place to make better happen - for our clients and for your career. You can do great things through innovation or collaboration, by learning or volunteering, or to promote diversity and inclusion. You can do great things for your own health or for a healthier planet. Whatever it means to you to do great things we want Ensono to be the place you can do it.\nWe are a client-facing business, but we do encourage clients to allow us to work remotely most of the time so if you are not required to be on a client site, you can choose to work from home or in our Ensono offices.\nSome of our benefits include:\nUnlimited Paid Days Off\nThree health plan options\n401k with company match\nEligibility for dental, vision, short and long-term disability, life and AD&D coverage, and flexible spending accounts\nFamily Forming Benefit including fertility coverage and adoption/surrogacy reimbursement\nPaid childbearing and paternal leave\nEducation Reimbursement, Student Loan Assistance or 529 College Funding\nSabbatical leave\nWellness program\nFlexible work schedule\nAs of the date of this posting, a good faith estimate of the current pay scale for this role is $130,000 to 188,000 annually based on a full-time schedule. Please note that placement in the range may vary based on numerous factors including but not limited to skills, experience, internal equity, and business needs. In addition to base salary, other compensation programs, depending on eligibility, include an annual bonus plan based on company and individual performance and an equity grant under our Associate Equity Appreciation Program.\nEnsono is an Equal Opportunity/Affirmative Action employer. We are committed to providing equal employment to our Associates and building a diverse and inclusive workforce. All qualified applicants will be considered without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability, or other legally protected basis, in accordance with applicable law.\nPay transparency nondiscrimination statement/posting OFCCP’s pay transparency policy can be found on OFCCP’s website\n.\nIf you need accommodation at any point during the application or interview process, please let your recruiter know or email \n.","description_format":"text","description_chars":4945,"description_truncated":false,"requirements":{"experience_years_min":10,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["401k plan","Equity","Flexible schedule"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Managed IT Services (MSP)","Cloud Consulting & Migration"],"lifecycle":[{"event":"open","at":"2026-09-02T13:45:02Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 30 · green card filings: 2","filings_12m":30,"filings_prev_12m":21,"green_card_filings_12m":2,"median_offered_wage_usd":141563,"route":null,"cap_exempt":false,"checked_at":"2026-10-15T11:24:14+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":14},{"country":"GB","licensed_sponsor":true,"evidence":"Licensed UK visa sponsor (Senior or Specialist Worker, Skilled Worker)","filings_12m":null,"filings_prev_12m":null,"green_card_filings_12m":null,"median_offered_wage_usd":null,"route":"Global Business Mobility: Senior or Specialist Worker; Skilled Worker","cap_exempt":false,"checked_at":"2026-10-21T06:25:45+00:00","sources":["UK Home Office: register of licensed sponsors (workers)"],"filings_for_role_12m":0}],"liveness":{"score":11,"band":"cold","label":"Long shot","p_open":0.4,"p_active":0.498,"p_room":0.55,"age_days":49,"expected_fill_days":41,"reasons":["seen:49","stale_co","velocity","win:tail"],"computed_at":"2026-10-21T05:46:15Z"},"pay":{"stated_usd_annual":188000,"is_top_pay":true},"html_url":"https://alion.io/job/ensono-expert-software-engineer","json_url":"https://alion.io/job/ensono-expert-software-engineer.json","meta":{"generated_at":"2026-10-22T02:15:14Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":1696,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-23T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":3084},"rest":"https://alion.io/mcp/rest/get_company?id=3084"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fensono-expert-software-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fensono-expert-software-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fensono-expert-software-engineer"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/ensono-expert-software-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fensono-expert-software-engineer"}]}