{"id":1161044,"url":"https://alion.io/job/odysseyconsult-senior-software-engineer","title":"Senior Software Engineer","company":{"id":2670648,"name":"Odysseyconsult","domain":"odysseyconsult.com","url":"https://alion.io/company/odysseyconsult","size_band":"1001-5000","is_staffing_agency":false,"is_intermediary":false,"ats_vendor":"iCIMS","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"hiring_geo_confidence":"structured","locations":["Monte Carlo, Monaco"],"countries":["MC"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":35000,"max_usd":94000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":4445},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"CesiumJS","optional":false},{"name":"CI/CD","optional":false},{"name":"Cython","optional":false},{"name":"DifferentialEquations.jl","optional":false},{"name":"Electron","optional":false},{"name":"Fortran","optional":false},{"name":"GitHub Actions","optional":false},{"name":"Julia","optional":false},{"name":"Linux","optional":false},{"name":"Numba","optional":false},{"name":"NumPy","optional":false},{"name":"ONNX","optional":false},{"name":"Plotly.js","optional":false},{"name":"Python","optional":false},{"name":"React.js","optional":false},{"name":"Recharts","optional":false},{"name":"Rest API","optional":false},{"name":"Rust","optional":false},{"name":"TypeScript","optional":false},{"name":"Windows","optional":false},{"name":"JavaScript","optional":true},{"name":"Node JS","optional":true},{"name":"ONNX Runtime","optional":true},{"name":"SciML","optional":true}],"status":"live","first_seen_at":"2026-09-23T23:45:38Z","employer_posted_date":"2026-09-23","last_verified_at":"2026-09-24T02:45:55Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Position Summary\nWe are seeking a Senior Software Engineer to be a primary technical contributor on the Multimode Threat Engagement Simulation Platform. You will own significant portions of the stack end-to-end - building the Julia computation backend, the React/TypeScript/CesiumJS frontend, and the CI/CD pipeline that delivers standalone Windows and Linux artifacts - with a primary emphasis on high-performance and scientific computing. You will work closely with the Lead Engineer on architecture decisions and with domain engineers (RF, EO/IR) to implement their physics models in a performant, maintainable form.\nThis role demands genuine depth in high-performance compute application development. The backend is not a conventional web API - it runs trajectory integration, Monte Carlo simulation across thousands of runs, and real-time surrogate model inference. You should be comfortable profiling and optimizing numerical code, reasoning about parallelism, and making informed trade-offs between simulation fidelity and throughput.\n***Contingent upon contract award***\nResponsibilities\nHigh-Performance Computation Backend\nImplement and optimize the Julia physics computation server: trajectory integration (RK4/RK45 schemes via DifferentialEquations.jl), SGP4 orbital propagation (SatelliteToolbox.jl), and Monte Carlo driver with Threads.@threads parallelism\nProfile and optimize computation-critical paths; benchmark throughput and latency against program requirements (e.g., 10,000 Monte Carlo runs within a defined wall-clock target)\nIntegrate ONNX.jl surrogate model inference for real-time parameter sweep capabilities; ensure inference latency meets the Implement CZML generation from physics outputs - trajectory arcs, satellite orbital paths, coverage footprints - for time-dynamic Cesium visualization\nDesign and maintain the mission data model: JSON serialization, versioned file format with backward compatibility, and cross-platform path handling for Windows and Linux\nImplement the HTTP.jl API layer with well-defined request/response schemas, appropriate error handling, and structured logging\nFrontend and Visualization\nBuild React/TypeScript components for the mission planning interface: tabbed mission overview, asset and task tree views, mission parameter forms, and the analysis panel\nIntegrate and maintain the CesiumJS/Resium 3D globe: asset markers, trajectory rendering, satellite ground tracks, coverage footprints, and CZML-driven animation with the Cesium timeline\nManage frontend application state (mission data, UI state, async physics query results) using appropriate state management patterns for a data-heavy desktop application\nImplement data-driven analysis visualizations - trajectory plots, Pk curves, Monte Carlo distribution charts - using Recharts, Plotly.js, or equivalent\nDevOps and Cross-Platform Packaging\nMaintain the CI/CD pipeline in GitHub Actions: automated builds producing Windows NSIS installers and Linux AppImages from a single codebase\nManage PackageCompiler.jl sysimage builds for the Julia physics server binary on both target platforms\nMaintain electron-builder configuration and platform-specific packaging scripts; validate installer behavior on clean Windows and Linux test environments\nImplement build-time embedding of ONNX model files and asset resources; manage versioning of bundled artifacts\n***Contingent upon contract award***\nQualifications\nCitizenship: Must be a US citizen\nMinimum Required Qualifications\nClearance: Active Secret Clearance\nEducation: B.S. in Computer Science, Software Engineering, Electrical Engineering, Physics, or related STEM field\nYears of Experience: 5+ years of software development experience, with demonstrated depth in at least one of the following areas: scientific computing, numerical simulation, high-performance computing, or data-intensive desktop applications\nCertifications: NA\n Additional Skills\nProficiency in TypeScript/React or equivalent modern frontend framework\nExperience with a compiled or JIT-compiled high-performance language (Julia, C++, Rust, Fortran, or Python with NumPy/Numba/Cython extensions)\nUnderstanding of parallel computing patterns relevant to numerical workloads: thread-level parallelism, SIMD, memory-access optimization\nExperience with REST API design and implementation as a client-server boundary within a single-machine application\nPreferred Qualifications\nClearance: Active TS/SCI\nEducation: MS degree\nCertifications: NA\n Preferred Skills\nDirect experience with Julia and the SciML / DifferentialEquations.jl ecosystem; PackageCompiler.jl sysimage generation\nExperience with CesiumJS, Resium, and CZML for 3D geospatial visualization\nFamiliarity with orbital mechanics, trajectory simulation, or atmospheric modeling at an implementation level (not just theoretical)\nExperience with ONNX Runtime, ONNX.jl, or equivalent ML inference frameworks\nExperience with Electron and electron-builder for cross-platform desktop deployment\nFamiliarity with at least one sensor or physics domain: radar detection, EO/IR performance, acoustic propagation, or multi-sensor tracking - at the level of understanding model inputs/outputs and integrating them correctly\nAdditional Information\nLocation: Colorado Springs, CO or Boston, MA\nTravel: Approx. 15-20%\nRemote, Onsite, or Hybrid: Hybrid\n***Contingent upon contract award***\nCompany Overview\nOdyssey is a world-class technical, engineering, and integration company serving the warfighting ecosystem with airborne integration, ISR, C2, and warfighter readiness capabilities. Odyssey meets the military’s operational needs by integrating layered defense systems from equipment, technology, and services to data, information, and business operations. We streamline defense acquisition and sustainment, engineering the technical battlefield with domain-specific proficiency to ensure lethality. Odyssey is dedicated to excellent contract execution, peak organizational performance, and fostering a workplace built on employee care.\nOdyssey is proud to live out our core values of commitment, ambition, and respect in our work and communities through OdysseyCares, a philanthropic group focused on giving back through direct donations, an employer match program, and volunteering events.\n Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities\nPlease Note:\nFinal compensation for this position will be determined by various factors such as the Federal Government contract labor categories and contract wage rates, relevant work experience, specific skills and competencies, geographic location, education, and certifications.\nThis position is filled through continuous recruitment and will remain open until a sufficient pool of applications has been received.Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, Tricare supplement, short-term disability, long-term disability, 401(k) match, flexible spending accounts, health savings accounts, employee assistance program, learning and development benefit, paid time off, and holidays.Odyssey Benefits","description_format":"text","description_chars":7123,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":["Life insurance"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Military","Professional Services","Science & Engineering"],"lifecycle":[{"event":"open","at":"2026-09-23T23:45:38Z"}],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":32,"reasons":["conf:0","win:early","comp:brand"],"computed_at":"2026-09-24T03:15:30Z"},"pay":null,"html_url":"https://alion.io/job/odysseyconsult-senior-software-engineer","json_url":"https://alion.io/job/odysseyconsult-senior-software-engineer.json","meta":{"generated_at":"2026-09-24T03:15:30Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers"}}