{"id":256139,"url":"https://alion.io/job/motional-senior-motion-planning-engineer-trajectory-generation","title":"Senior Motion Planning Engineer - Trajectory Generation","company":{"id":66433,"name":"Motional","domain":"motional.com","url":"https://alion.io/company/motional-com","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":84,"open_postings":16,"ghost_share":0,"stale_share":0.438,"repost_share":0,"time_to_fill_p50_days":85,"computed_at":"2026-10-31T05:58:55Z"}},"role":"Robotics","role_family":"Robotics","seniority":"senior","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Boston, United States","Pittsburgh, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":172000,"max":229000,"currency":"USD","period":"year","gross":null,"usd_annual":229000},"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"CI/CD","optional":false},{"name":"Model Predictive Control","optional":false},{"name":"Motion Planning","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2026-06-30T13:43:08Z","employer_posted_date":"2026-10-16","last_verified_at":"2026-10-31T12:01:57Z","board_verified":true,"closed_at":null,"days_open":123,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":123},"description":"Mission Summary:\nOn our Motion team, you will leverage your expertise in motion planning, robotics, and software development to advance the capabilities of production-ready autonomous vehicles. In this role, you will conduct innovative research, lead design processes, and implement performance-critical algorithms that enable safe, comfortable, and intuitive autonomous vehicle behaviors across Motional’s fleet of robotaxis.\nIf you are passionate about autonomous driving, thrive on solving challenging optimization problems, and are eager to make a significant impact in a rapidly evolving field, we want to hear from you.\nTechnical Scope:\nDevelop state-of-the-art motion control and trajectory optimization algorithms to ensure safe and comfortable vehicle motion \nDesign and build robust and scalable software that enables real on-road impact by evaluating different control techniques and motion planning algorithms\nProvides high-quality code and design reviews (C++) based on a deep understanding of the teams’ services and technologies\nLeverage modern development toolchains, including testing, simulation, and continuous integration, to enable rapid development cycles\nRole responsibilities:\nUnderstands and explains trade-offs, complex concepts to peers and leaders to drive decisions.\nCollaborate with teams working on (ML) decision/behavior planning, prediction, and vehicle control to build comprehensive and integrated solutions\nCreates project proposals that drive long-term technical roadmaps and span multiple sub-systems.\nMentor junior team members to develop a culture of product-focused engineering, research, and development.\nWhat we're looking for:\n3+ years of C++ software development\nBachelors, Masters, or PhD degree preferred in Robotics, Computer Science, Computer Engineering, Electrical Engineering, or a related field.\nExperience with Model Predictive Control (MPC), motion planning, planning under uncertainty, vehicle dynamics and control, and simulation environments\nUnderstanding of numerical optimization algorithms (interior point method, sequential quadratic programming, etc)\nExperience with optimization solvers (IPOPT, Gurobi, etc)\nPast experience owning and leading technical development on features from problem formulation, algorithm design, through implementation\nKnowledge of Python is a bonus\nWe encourage a hybrid schedule with in-office time at one of our locations in Boston or Pittsburgh to support collaboration, or this role can be fully remote.\nThe salary range for this role is an estimate based on a wide range of compensation factors including but not limited to specific skills, experience and expertise, role location, certifications, licenses, and business needs. The estimated compensation range listed in this job posting reflects base salary only. This role may include additional forms of compensation such as a bonus or company equity. The recruiter assigned to this role can share more information about the specific compensation and benefit details associated with this role during the hiring process. \nCandidates for certain positions are eligible to participate in Motional’s benefits program. Motional’s benefits include but are not limited to medical, dental, vision, 401k with a company match, health saving accounts, life insurance, pet insurance, and more.\nSalary Range\n$172,000—$229,000 USD\nMotional is a driverless technology company making autonomous vehicles a safe, reliable, and accessible reality. We’re driven by something more.\nOur journey is always people first.\nWe aren't just developing driverless cars; we're creating safer roadways, more equitable transportation options, and making our communities better places to live, work, and connect. Our team is made up of engineers, researchers, innovators, dreamers and doers, who are creating a technology with the potential to transform the way we move.\nHigher purpose, greater impact.\nWe’re creating first-of-its-kind technology that will transform transportation. To do so successfully, we must design for everyone in our cities and on our roads. We believe in building a great place to work through a progressive, global culture that is diverse, inclusive, and ensures people feel valued at every level of the organization. Diversity helps us to see the world differently; it’s not only good for our business, it’s the right thing to do. \nScale up, not starting up.\nOur team is behind some of the industry's largest leaps forward, including the first fully-autonomous cross-country drive in the U.S, the launch of the world's first robotaxi pilot, and operation of the world's longest-standing public robotaxi fleet. We’re driven to scale; we’re moving towards commercialization of our technology, and we need team members who are ready to embrace change and challenges.\nFormed as a joint venture between Hyundai Motor Group and Aptiv, Motional is fundamentally changing how people move through their lives. Headquartered in Boston, Motional has operations in the U.S and Asia. For more information, visit www.Motional.com and follow us on Twitter, LinkedIn, Instagram and YouTube.\nMotional AD Inc. is an EOE. We celebrate diversity and are committed to creating an inclusive environment for all employees. To comply with Federal Law, we participate in E-Verify. 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