{"id":20260,"url":"https://alion.io/job/blackducksoftware-software-engineer-4-c-net-core-clr-internals","title":"Software Engineer 4 (C#,. Net core, Runtime Profiling, CLR Internals)","company":{"id":720312,"name":"Black Duck","domain":"blackduck.com","url":"https://alion.io/company/blackduck","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":88,"open_postings":7,"ghost_share":0,"stale_share":0.286,"repost_share":0,"time_to_fill_p50_days":66,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Bengaluru, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":18500,"max_usd":44000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":139},"experience_years_min":9,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"AWS Bedrock AgentCore","optional":false},{"name":"AWS Lambda","optional":false},{"name":"Azure","optional":false},{"name":"C#","optional":false},{"name":"C++","optional":false},{"name":"CI/CD","optional":false},{"name":"CMake","optional":false},{"name":"Docker","optional":false},{"name":"Git","optional":false},{"name":"GitLab CI","optional":false},{"name":"gRPC","optional":false},{"name":"Linux","optional":false},{"name":"Windows","optional":false},{"name":"OWASP Top 10","optional":true},{"name":"PowerShell","optional":true},{"name":"spdlog","optional":true},{"name":"TBB","optional":true},{"name":"WebSockets","optional":true}],"status":"live","first_seen_at":"2026-07-07T06:14:29Z","employer_posted_date":"2026-09-24","last_verified_at":"2026-10-18T00:08:16Z","board_verified":true,"closed_at":null,"days_open":102,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":102},"description":"Black Duck Software, Inc. helps organizations build secure, high-quality software, minimizing risks while maximizing speed and productivity. Black Duck, a recognized pioneer in application security, provides SAST, SCA, and DAST solutions that enable teams to quickly find and fix vulnerabilities and defects in proprietary code, open source components, and application behavior. With a combination of industry-leading tools, services, and expertise, only Black Duck helps organizations maximize security and quality in DevSecOps and throughout the software development life cycle.\nAbout the Role:\nWe are looking for a Hands-on Software Engineer 4 to work on our Seeker Inline Agent for .NET - a dynamic application security testing (DAST) agent that instruments .NET applications at runtime to detect security vulnerabilities. You will work across C#, C++, and multiple .NET runtime versions to build and maintain profiler-based instrumentation, security checkers, and platform integrations.\nExperience : 9+ Years\nJob location : Black Duck, Bangalore (Prestige Blue Chip, Near Dairy Circle, Opp to Christ University)\nWork Mode : Hybrid (3 days WFO)\nResponsibilities:\nDesign, develop, and maintain the .NET agent core, including security checkers (SQLi, XSS, CSRF, deserialization, etc.) and taint analysis engine\nDevelop and optimize native C++ profilers using the CLR Profiling API for both .NET Framework and .NET Core/.NET 5+\nSupport multi-platform builds targeting Windows (x64), Linux (x64, ARM64), and Alpine/musl environments\n Extend agent capabilities to new .NET versions (.NET 8, 9, 10+) and hosting models (AWS Lambda, Azure Functions, gRPC, OWIN, WCF)\nCollaborate on CI/CD pipelines (GitLab CI) across multiple OS targets and Docker-based build environments\nWrite and maintain unit tests (NUnit) and integration tests across framework versions\nTroubleshoot low-level runtime issues involving IL rewriting, method interception, and memory management\nParticipate in code reviews, architecture discussions, and contribute to build system improvements (Cake Build, CMake, MSBuild)\nRequired Skills:\n9+ years of professional software development experience\nStrong C# proficiency across .NET Framework (3.5-4.8.1) and . NET Core/.NET 5+ (up to .NET 10)\n C++ experience - working with native interop, COM, and platform APIs (CLR Profiling API is a strong plus)\nDeep understanding of the .NET CLR internals - assembly loading, JIT compilation, IL metadata, type system\nExperience with multi-platform development (Windows & Linux)\nProficiency with CMake, MSBuild, and complex build orchestration\nStrong debugging skills - ability to diagnose issues across managed/native boundaries\nExperience with Git and CI/CD pipelines (GitLab CI preferred)\nPreferred Skills:\n- Experience in application security, DAST/IAST, or security instrumentation\n- Knowledge ofOWASP Top 10 vulnerabilities and detection techniques\n- Experience with Docker containerization and multi-arch builds (x64, ARM64, Alpine)\n- Familiarity with serverless platforms (AWS Lambda, Azure Functions)\n- Experience with WiX installer authoring and NuGet packaging\n- Knowledge of code obfuscation techniques\n- Familiarity with logging frameworks (log4net, spdlog, NLog)\n- Experience with WebSocket communication protocols\nTech Stack:\n\nLayer\n\nTechnologies\n\nLanguages\n\nC#, C++, PowerShell\n\nFrameworks\n\n.NET Framework 3.5-4.8.1, .NET Core 2.0-3.1, .NET 5-10\n\nBuild\n\nCake Build, CMake, MSBuild, GitLab CI\n\nNative\n\nCLR Profiling API, COM, spdlog, TBB\n\nTesting\n\nNUnit, Integration test harness\n\nPlatforms\n\nWindows x64, Linux x64/ARM64, Alpine\n\nPackaging\n\nNuGet, WiX Installer\n\nNice to Have:\nExperience contributing to profilers, APM agents, or runtime instrumentation tools\nBackground in reverse engineering or binary analysis\nFamiliarity with ReSharper code inspection tooling\nBlack Duck is an equal opportunity employer. We consider all applicants for employment without regard to race, color, national origin, religion, sex, gender identity or expression, age, disability, sexual orientation, veteran or military service status, or any other characteristic protected by applicable law. Black Duck complies with all applicable laws prohibiting employment discrimination in every jurisdiction where it operates and provides reasonable accommodations to individuals with disabilities in accordance with applicable law.","description_format":"text","description_chars":4373,"description_truncated":false,"requirements":{"experience_years_min":9,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"India","iso":"IN","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Application Security","DevSecOps"],"lifecycle":[{"event":"open","at":"2026-07-07T06:14:29Z"}],"visa":[],"liveness":{"score":27,"band":"fade","label":"Fading","p_open":1,"p_active":0.747,"p_room":0.36,"age_days":101,"expected_fill_days":66,"reasons":["conf:0","velocity","win:tail","crowd:"],"computed_at":"2026-10-17T05:46:00Z"},"pay":null,"html_url":"https://alion.io/job/blackducksoftware-software-engineer-4-c-net-core-clr-internals","json_url":"https://alion.io/job/blackducksoftware-software-engineer-4-c-net-core-clr-internals.json","meta":{"generated_at":"2026-10-18T01:28:02Z","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":2412,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-19T00:00:00Z"}},"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":720312},"rest":"https://alion.io/mcp/rest/get_company?id=720312"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fblackducksoftware-software-engineer-4-c-net-core-clr-internals"},{"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%2Fblackducksoftware-software-engineer-4-c-net-core-clr-internals"},{"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%2Fblackducksoftware-software-engineer-4-c-net-core-clr-internals"},{"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/blackducksoftware-software-engineer-4-c-net-core-clr-internals\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fblackducksoftware-software-engineer-4-c-net-core-clr-internals"}]}