Senior Software Engineer Cesium JS **Location** : Office-Based / Home-Based / Hybrid in the US. Preferably located near Philadelphia. **Position Summary:** Cesium (now a part of Bentley) is defining the standard for 3D across industries from the construction site to the battlefield, from outer space to underground. Cesium has more than 10,000,000 lifetime open-source downloads and we support a thriving open-source community. We are in an extraordinary position and are looking for a creative software developer to help continue to shape the direction of Cesium JS, our flagship open-source JavaScript library purpose-built for 3D geospatial on the web. **Your day to day:** + Help create and build libraries that other developers love using + Bring a passion in making 3D data accessible to everyone + Love solving unique challenges - you will be doing this every day at the intersection of web development, 3D, and geospatial + Engage with our active user community and represent Cesium true to our brand as an authentic authority in 3D geospatial + Be an active participant in a collaborative and supportive development team using GitHub to write code, conduct code reviews, and manage CI + Collaborate with product management on platform roadmap and product line strategy + Work in a fast-paced continuous learning environment + Minimal travel would be required in this role. + Requires sitting or standing at will while performing work on a computer (or any other physical requirements (https://www.bls.gov/ors/factsheet/visual-overview-of-physical-demands.htm) ). **What You Bring to the Team** + Over 10 years of relevant, web development experience + Excellent JavaScript development skills with a focus on modular architecture, API design, tooling, and performance + Strong understanding of mapping libraries, and 3D graphics including WebGL, glTF, and/or 3D Tiles is highly desired + Fantastic communication skills – writing, in person, both internally and externally + Experience improving software products through automation and testing + A desire to learn new tools, capabilities, and platforms to add to your toolbox through continuous education. + A willingness to mentor other Cesium developers and colleagues + BS or MS in Computer Science, Software Engineering, or a related field with equivalent industry experience **About Bentley Systems** 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. www.bentley.com **Equal Opportunity Employer:** 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 (https://www.dol.gov/agencies/ofccp/posters) as an applicant under the law. Bentley Policy on EEO, Affirmative Action and Pay Transparency Non-Discrimination (https://www.bentley.com/wp-content/uploads/Bentley-EEOAA-Statement-of-Policy.pdf) Bentley participates in e-Verify / Bentley participate in e-Verify / Right to Work Notice **Request an Accommodation:** 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 Equal Opportunity Employer/Minorities/Females/Veterans/Disabled