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About the Role
Cesium, part of Bentley Systems, is seeking a Principal Engineer to advance core C++ libraries powering 3D geospatial applications within leading game engines. This role is key to the technical direction of open-source, cross-platform technology for visualizing massive real-world 3D datasets.
Responsibilities
- Architect, develop, and shape the future of core Cesium Native C++ libraries, focusing on performance, modularity, and clean API design for integrations with Unreal Engine, Unity, and NVIDIA Omniverse.
- Drive research and implementation of novel 3D graphics algorithms for large-scale geospatial visualization.
- Enhance runtimes for high-performance streaming, level-of-detail selection, and efficient decoding of massive geospatial datasets.
- Profile and debug the engine to identify and eliminate performance bottlenecks.
- Set the standard for engineering excellence through exemplary code, insightful reviews, and strategic technical guidance.
- Mentor and grow other senior engineers, fostering technical innovation and continuous improvement.
- Partner with product management and engineering leadership to define and execute the multi-year technical roadmap for the Cesium Native ecosystem.
Requirements
- Over 12 years of professional experience in 3D runtime or game engine development.
- Expert-level C++ development skills (C++17/20/23), with a strong focus on API design, modular architecture, and high performance.
- Recognized expertise in modern graphics APIs (Vulkan, DirectX 12, Metal) and advanced 3D graphics algorithms.
- Proven experience leading the technical design and implementation of core engine components for platforms like Unreal Engine, Unity, or NVIDIA Omniverse.
- Solid understanding of graphics algorithms, spatial data structures, and 3D mathematics.
- Experience debugging, profiling, and optimizing complex, multi-threaded graphics applications.
- Familiarity with geospatial concepts and data formats such as photogrammetry, point clouds, terrain, and open standards like glTF and 3D Tiles.
- Excellent written and verbal communication skills, with experience collaborating with both internal teams and external communities.
- Demonstrated ability to influence and lead cross-functional teams and effectively mentor other senior engineers.
- BS or MS in Computer Science, Software Engineering, or a related field, or equivalent industry experience.
- Requires sitting or standing at will while performing work on a computer.
- No travel is required for this role.
- No sponsorship is available for this role.
Skills
- C++17/20/23
- API design
- Modular architecture
- High performance
- Vulkan
- DirectX 12
- Metal
- 3D graphics algorithms
- Unreal Engine
- Unity
- NVIDIA Omniverse
- Graphics algorithms
- Spatial data structures
- 3D mathematics
- Debugging
- Profiling
- Optimization
- Multi-threaded graphics applications
- Geospatial concepts
- Photogrammetry
- Point clouds
- Terrain
- glTF
- 3D Tiles
- Written communication
- Verbal communication
- Collaboration
- Team leadership
- Mentoring
Location
- Philadelphia, PA
Work Type
- Hybrid
- 3 days in office
Experience Level
- Principal Engineer
- Over 12 years of professional experience
Education Level
- BS or MS in Computer Science, Software Engineering, or a related field, or equivalent industry experience.
Benefits
- Attractive salary and benefits package
- Bentley Impact Day: take a day off from work to volunteer with an organization of your choice.
- Colleague recognition award programs
- Bentley Achievers platform
- Commitment to inclusion, belonging and colleague wellbeing through global initiatives and resource groups.
About the Company
- Cesium, as part of Bentley Systems, is setting the standard for 3D geospatial technology across diverse industries, from construction and engineering to defense and aerospace.
- Bentley Systems (Nasdaq: BSY) is the infrastructure engineering software company.
- We provide innovative software to advance the world’s infrastructure – sustaining both the global economy and environment.
- Our industry-leading software solutions are used by professionals, and organizations of every size, for the design, construction, and operations of roads and bridges, rail and transit, water and wastewater, public works and utilities, buildings and campuses, mining, and industrial facilities.
- Our offerings, powered by the iTwin Platform for infrastructure digital twins, include MicroStation and Bentley Open applications for modeling and simulation, Seequent’s software for geoprofessionals, and Bentley Infrastructure Cloud encompassing ProjectWise for project delivery, SYNCHRO for construction management, and AssetWise for asset operations.
- Bentley Systems’ 5,200 colleagues generate annual revenues of more than $1 billion in 194 countries.
Equal Opportunity
- Bentley is an equal opportunity employer and considers all qualified applicants for employment without regard to race, color, sex, sexual orientation, gender identity, disability, pregnancy, protected veteran status, religion, national origin, age, genetic information or any other protected characteristic.
- This commitment extends to all aspects of employment, including, but not limited to, hiring, placement, promotion, compensation, and training.
- Know Your Rights as an applicant under the law.
- Bentley Policy on EEO, Affirmative Action and Pay Transparency Non-Discrimination
- Bentley participates in e-Verify / Bentley participate in e-Verify / Right to Work Notice
- As an Equal Opportunity Employer, Bentley is committed to providing reasonable accommodations to applicants with disabilities.
- We encourage you to request a reasonable accommodation if you are not able to fully use or access our online application system.
- You can make an accommodation request by calling 610-458-5000 or sending us an email at disabilityrequest@bentley.com