{"id":2388785,"url":"https://alion.io/job/marss-fr-simulation-software-engineer-unreal-engine","title":"FR - Simulation Software Engineer (Unreal Engine)","company":{"id":2490548,"name":"MARSS","domain":"marss.com","url":"https://alion.io/company/marss-com","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"BambooHR","truth_index":{"grade":"B","score":75,"open_postings":4,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-13T05:45:00Z"}},"role":"Games","role_family":"Games","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":[],"countries":[],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"GStreamer","optional":false},{"name":"Linux","optional":false},{"name":"Unreal Engine","optional":false},{"name":"Windows","optional":false},{"name":"Cesium","optional":true},{"name":"CI/CD","optional":true},{"name":"Docker","optional":true},{"name":"Go","optional":true},{"name":"Machine Learning","optional":true},{"name":"Model Context Protocol","optional":true},{"name":"Python","optional":true},{"name":"Synthetic Data","optional":true},{"name":"Ubuntu","optional":true}],"status":"live","first_seen_at":"2026-10-12T20:40:51Z","employer_posted_date":"2026-10-12","last_verified_at":"2026-10-13T06:32:32Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Title: Software Simulation Engineer Unreal Engine\nSeniority : Senior\nLocation: France - Nice (hybrid)\nThe Position\nWe value intelligence and attitude over knowledge of specific technologies. But, as we are looking for an experienced Software Engineer (at least 5+ years of software programming experience), we would expect your background to be closely aligned with the main qualifications below.\nMain Responsibilities\nWe are building a new NiDAR simulator that uses Unreal Engine 5.x for the 3D rendering engine and physics, and we are looking for a senior Unreal Engineer to lead and contribute to the development.\nBuild realistic, geo-referenced 3D environments and physics-driven drones, vehicles and vessels and including effectors such as cannons, missile launchers, lasers.\nSimulate camera sensors (EO and thermal, pan/tilt/zoom) and stream their video out of the engine into our C2 platform.\nIntegrate the simulator with our software, together with our backend team.\nKeep us on the latest engine releases and prepare the transition to UE6.\nProvide support and mentorship, commit to timelines, estimate accurately and assess risks.\nRequirements\nCurrent, hands-on professional experience with Unreal Engine 5 and its recent releases (we start on UE 5.8)\nStrong C++ in Unreal, and fluent Blueprints\nReal-time physics (Chaos) and vehicle or flight dynamics\nRendering and cameras: materials, post-process, Scene Capture and render targets\nCapturing and streaming rendered video out of Unreal (e.g. Pixel Streaming, GStreamer, RTSP)\nProfiling and performance optimisation\nGIT, comfortable on Windows and Linux (and MacOS, ideally)\nClosely following Unreal's evolution, including the UE6 roadmap (Verse, Scene Graph)\nBonus Points for…\nPython and/or Golang\nMilitary or defence simulation, tactical games, flight or vehicle simulators\nExternal physics engines\n3D content creation or modification\nGeospatial and large worlds (Cesium for Unreal, Large World Coordinates)\nThermal/IR sensor simulation\nSynthetic data generation for Machine Learning\nAI-assisted Unreal workflows (Unreal MCP)\nDocker, CI/CD\nDIS/HLA, Omniverse\nEducation\nWe prefer at least bachelors degree level in a science or engineering discipline. Masters or PhD advantageous.\nThe Work Environment\nDevelopment on Macs and Ubuntu: We're pragmatic so realise we also have to work with Windows occasionally… and for Unreal, we might work more on Windows.\nSmall team: Embracing modern development practices. New ideas are always encouraged and we'll try most things, but we always settle on what works for us.\nDiverse team: Our team is very multicultural including a mix of experienced engineers, successful sales and project managers balanced with the brightest young graduates.\nPassionate: We are passionate and enjoy what we do!\nIntegration and interfacing\nOur core activity is safety and security applications. We're bringing the latest web technologies to real-world hardware i.e. we don't work in the cloud. We interface with very diverse equipment: radar, sonar, thermal imaging, drones, software-defined radios and more. Our UI runs on touchscreen displays, tablets, phones, smart-glasses...\nChallenges\nIf you are looking for an easy job, this isn't it. We operate in mission critical environments. Our systems can operate at sea and high security areas with limited connectivity to the data center. So, all your assumptions about cloud development techniques and operating environments will be constantly challenged. Timelines are strict, and creativity is often required to solve unexpected technical issues. It can be extremely diverse, interesting, and rewarding if you are up to the challenge!","description_format":"text","description_chars":3665,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"France","iso":"FR","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Game Development","Artificial Intelligence","Information Technology","IoT Platforms & Solutions"],"lifecycle":[{"event":"open","at":"2026-10-12T20:40:51Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":22,"reasons":["conf:2","win:early"],"computed_at":"2026-10-13T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/marss-fr-simulation-software-engineer-unreal-engine","json_url":"https://alion.io/job/marss-fr-simulation-software-engineer-unreal-engine.json","meta":{"generated_at":"2026-10-13T08:50:58Z","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":13154,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-14T00:00:00Z"}},"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":2490548},"rest":"https://alion.io/mcp/rest/get_company?id=2490548"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmarss-fr-simulation-software-engineer-unreal-engine"},{"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%2Fmarss-fr-simulation-software-engineer-unreal-engine"},{"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%2Fmarss-fr-simulation-software-engineer-unreal-engine"},{"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/marss-fr-simulation-software-engineer-unreal-engine\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmarss-fr-simulation-software-engineer-unreal-engine"}]}