{"id":1836617,"url":"https://alion.io/job/anduril-industries-senior-software-engineer-distributed-simulation-c","title":"Senior Software Engineer, Distributed Simulation (C++)","company":{"id":14,"name":"Anduril Industries","domain":"anduril.com","url":"https://alion.io/company/anduril","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":82,"open_postings":623,"ghost_share":0,"stale_share":0.724,"repost_share":0,"time_to_fill_p50_days":52,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Seattle, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":191000,"max":253000,"currency":"USD","period":"year","gross":null,"usd_annual":253000},"salary_estimate":null,"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"C++","optional":false},{"name":"Computer Vision","optional":false},{"name":"Go","optional":false},{"name":"gRPC","optional":false},{"name":"Linux","optional":false},{"name":"Protobuf","optional":false},{"name":"Sensor Fusion","optional":false},{"name":"TypeScript","optional":false},{"name":"AWS","optional":true},{"name":"Azure","optional":true},{"name":"Kubernetes","optional":true},{"name":"KubeVirt","optional":true},{"name":"QEMU","optional":true}],"status":"live","first_seen_at":"2026-09-18T13:36:52Z","employer_posted_date":"2026-10-05","last_verified_at":"2026-10-17T09:36:15Z","board_verified":true,"closed_at":null,"days_open":28,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":28},"description":"Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century’s most innovative companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril’s family of systems is powered by Lattice OS, an AI-powered operating system that turns thousands of data streams into a realtime, 3D command and control center. As the world enters an era of strategic competition, Anduril is committed to bringing cutting-edge autonomy, AI, computer vision, sensor fusion, and networking technology to the military in months, not years.\nABOUT THE TEAM \nThe Software Integration Environment (SIE) team builds the platform Anduril uses to test software the way it will actually be flown, driven, and fought: real binaries, running on real services, under conditions we control. We provision isolated, reproducible environments for simulation and integration testing at scale, across AWS, Azure, and on-premise. The platform is used both internally by Anduril engineers and externally by our customers. Compute was the first half of that problem. The second half is the simulated world those binaries run inside - how it gets authored, how heterogeneous simulators agree on it, and how an engineer inspects and trusts what happened during a run. That is what this role owns.\nABOUT THE ROLE\nWe are looking for a Senior Software Engineer with deep C++ and real-time systems experience to build the simulation layer of the SIE platform. This is a systems software role: you will design and write the services that let independent simulators share one world - a common clock, a common entity namespace, and a clear model of who owns what - and the tooling that lets users author, reuse, and debug the scenarios they run. This is a new area with a wide surface. You will be one of the first engineers on it, which means you will set the technical direction, make the architectural calls, and be accountable for them. Most of your time is spent building, but not all of it: you will periodically work alongside the teams adopting the platform, onboarding Anduril business lines and integrating their simulators with it. Expect ambiguity: the standards in this domain are decades old, the implementations in the wild vary wildly in quality, and the correct design for our constraints is not written down yet. We expect you to work end-to-end - design, implement, ship, operate, and iterate. \nWHAT YOU’LL DO\nDesign and build the C++ services that federate independent simulators into a single simulated world - time management, entity registry and ownership, join/resign lifecycle, and state distribution\nOwn the wire layer: protocol encoding and decoding, multicast and unicast transport, and the interoperability work required to make simulators built by different teams and vendors talk to each other\nMake simulation runs deterministic and reproducible enough that a result is evidence, not a demo - including time control, replay, and the instrumentation that explains a divergence\nBuild and generalize the scenario and laydown authoring tooling that engineers and operators use to describe what they want to run\nBuild the content and resource catalogs that let users save, tag, search, and reuse environment and scenario definitions instead of rebuilding them each time\nChase down performance: profile hot paths, control allocation and copying, and hold latency and throughput budgets under load with hundreds to thousands of entities\nIntegrate with the rest of the platform - the Go services that provision and schedule compute, the gRPC/protobuf APIs that expose it, and the web UI the team owns\nSet the technical direction for this area, write the design docs that make it reviewable, and raise the bar through code review and mentorship as the team grows\nPartner with Anduril business lines when they onboard onto the platform - work alongside their engineers to get their simulators, models, and test workflows integrated, and stay with them until it works in their hands and not just yours\nReduce the cost of that onboarding over time by turning the integration work you do by hand into documentation, reference integrations, and SDKs, so the next team can self-serve\nWork directly with the internal teams and external customers who need this, and convert what they tell you into shipped capability\nREQUIRED QUALIFICATIONS\n7+ years of professional software engineering experience\nDeep, current production experience in modern C++ (C++17 or newer) - you are fluent in ownership and lifetime, move semantics, templates, and the standard library\nExperience building networked, concurrent, or real-time systems in C++, including multithreading, synchronization, and the failure modes that come with them\nStrong systems fundamentals: memory layout and allocation behavior, cache effects, sockets and UDP/TCP, serialization, and Linux\nDemonstrated ability to profile and optimize a real system, and to reason about latency and throughput with numbers rather than intuition\nExperience owning an ambiguous, cross-cutting project end-to-end and driving it to production\nExperience working directly with the engineering teams who consume what you build - integrating them, unblocking them, and taking their feedback into the next version\nComfortable working in at least one other language alongside C++ - the surrounding platform is Go and TypeScript, and you will touch both\nStrong written and verbal communication - you can write a design document that a skeptical reader can evaluate\nComputer Science degree or equivalent industry experience\nEligible to obtain and maintain an active U.S. Secret security clearance\nPREFERRED QUALIFICATIONS\nYou have a bias for action and taking ownership. You have a track record of fixing a problem when you see one, including problems that are not formally yours.\nExperience with distributed simulation and interoperability standards - DIS (IEEE 1278), HLA/RTI (IEEE 1516), TENA, or equivalent proprietary federation layers\nExperience with simulation engines, physics or flight dynamics models, game engines, or discrete-event and time-stepped simulation frameworks\nExperience with software-in-the-loop or hardware-in-the-loop test systems, robotics simulation, or synthetic environments used for test and training\nExperience making a distributed system deterministic or reproducible, including logical clocks, lockstep execution, or record and replay\nExperience with gRPC/protobuf, or with designing binary protocols and schema evolution\nExperience running C++ services on hardware or containers on Kubernetes, or otherwise operating what you build\nExperience or interest working in monorepos with modern build systems like Bazel, Buck, Nix, etc. (we use Bazel)\nExperience with virtualization or hypervisor technologies (KubeVirt, qemu)\nExperience with GPU programming, rendering, or geospatial and terrain data\nExperience building developer tooling or a platform product with real users, and iterating on their feedback\nAn active U.S. Secret or higher security clearance\nUS Salary Range\n$191,000—$253,000 USD\nThe salary range for this role is an estimate based on a wide range of compensation factors, inclusive of base salary only. Actual salary offer may vary based on (but not limited to) work experience, education and/or training, critical skills, and/or business considerations. Highly competitive equity grants are included in the majority of full time offers; and are considered part of Anduril's total compensation package. Additionally, Anduril offers top-tier benefits for full-time employees, including: \nBenefits\nAt Anduril, we invest in our people. Our comprehensive, competitive benefits package (available at little to no cost to employees) ensures you’re supported in health, recovery, and whatever comes next. For more information, Explore Our Benefits.\nProtecting Yourself from Recruitment Scams\nAnduril is committed to maintaining the integrity of our Talent acquisition process and the security of our candidates. We've observed a rise in sophisticated phishing and fraudulent schemes where individuals impersonate Anduril representatives, luring job seekers with false interviews or job offers. These scammers often attempt to extract payment or sensitive personal information.\nTo ensure your safety and help you navigate your job search with confidence, please keep the following critical points in mind:\nNo Financial Requests: Anduril will never solicit payment or demand personal financial details (such as banking information, credit card numbers, or social security numbers) at any stage of our hiring process. Our legitimate recruitment is entirely free for candidates.\n\nPlease always verify communications:Direct from Anduril: If you receive an email from one of our recruiters, it will only come from an @anduril.com address.\nVia Agency Partner: If contacted by a recruiting agency for an Anduril role, their email will clearly identify their agency. If you suspect any suspicious activity, please verify the agency's authenticity by reaching out to . \n\nExercise Caution with Unsolicited Outreach: If you receive any communication that appears suspicious, contains grammatical errors, or makes unusual requests, do not engage. Always confirm the sender's email domain is @anduril.com before providing any personal information or clicking on links.\n\nWhat to Do If You Suspect Fraud: Should you encounter any questionable or fraudulent outreach claiming to be from Anduril, please report it immediately to . Your proactive caution is invaluable in protecting your personal information and upholding the security and trustworthiness of our recruitment efforts.\n\nData Privacy\nTo view Anduril's candidate data privacy policy, please visit https://anduril.com/applicant-privacy-notice/. \nBy submitting your application, you consent to Anduril Industries using a third-party service provider to conduct pre-employment risk, integrity, and due diligence screening and assessing potential risks as part of your application process. This third-party service provider provides risk-intelligence services that may include analysis of sanctions and watchlists, adverse media, public-record information, and other lawful open-source or commercial data sources. This third-party service provider does not act as a consumer reporting agency. 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