Software Engineer II

Soni; Exton (PA); Hybrid; USD 110,000 - 140,000; Full time

Job summary

Soni is seeking a passionate Software Engineer II to design and build the web-based viewing and collaboration experiences for the Bentley Infrastructure Cloud. You will contribute to the embedded 3D/digital-twin viewer and related modules used by engineers, owners, and contractors worldwide.

You will work on frontend features with TypeScript, React, Cesium, and iTwin.js, in a hybrid Exton/Philadelphia setting, collaborating in an agile environment and mentoring teammates to improve code quality

Qualifications

• Graduate or post-graduate degree in computer science, software engineering, or relevant training/experience.
• At least 5 years of frontend development experience with TypeScript and React.
• Experience with frontend unit and end-to-end testing (e.g., Jest/Vitest, Playwright).

Responsibilities

• Design, build, and ship frontend features for the Bentley Infrastructure Cloud iTwin/iModel Viewer using TypeScript, React, Cesium, and iTwin.js, from requirements through delivery.
• Document features and decisions through clear code, comments, and concise technical write-ups.
• Build and maintain micro-frontend packages in a large pnpmmonorepo, balancing shared-package stability with feature velocity.
• Write clear, testable, maintainable code with strong unit and end-to-end coverage.
• Participate in code reviews, PR-based workflows, and agile/Scrum ceremonies, and uphold coding standards.
• Mentor and support fellow engineers through pairing, reviews, and knowledge sharing.

Skills

TypeScript

React

Frontend development

Unit testing

End-to-end testing

Agile/Scrum

REST APIs

OOP

Education

BS in Computer Science or related field

Tools

Jest/Vitest

Playwright

Job description

Location: Hybrid - Exton/Philadelphia, PA, US

Position Summary:

Soni's client is looking for a passionate Software Engineer II to help design and build the web-based viewing and collaboration experiences. Their team builds the embedded 3D/digital-twin viewer and its surrounding feature modules — used by engineers, owners, and contractors worldwide to review, markup, and collaborate on infrastructure projects (buildings, bridges, roads, rail, and utilities).

Responsibilities:

• Design, build, and ship frontend features for the Bentley Infrastructure Cloud iTwin/iModel Viewer using TypeScript, React, Cesium, and iTwin.js, from requirements through delivery.
• Document features and decisions through clear code, comments, and concise technical write-ups
• Build and maintain micro-frontend (Module Federation) packages in a large pnpmmonorepo, balancing shared-package stability with feature velocity
• Write clear, testable, maintainable code with strong unit (Vitest + React Testing Library) and end-to-end (Playwright) coverage.
• Participate in code reviews, PR-based workflows, and agile/Scrum ceremonies, and help uphold our coding standards and architectural boundaries.
• Mentor and support fellow engineers through pairing, reviews, and knowledge sharing.

Qualifications:

• Graduate or post-graduate degree in computer science, software engineering, or relevant training and/or experience.
• At least 5 years' experience in frontend development with TypeScript, React
• Experience with frontend unit and end-to-end testing (e.g., Jest/Vitest, Playwright), data structures, and OOP.
• Working experience with Scrum and agile methodologies.
• Experience building component-based UIs and consuming REST APIs.
• Good verbal and written communication skills.
• This role requires minimal travel.
• Requires sitting or standing at will while performing work on a computer

Preferred:

• Experience with Azure DevOps, CI/CD, GitHub, GitHub Copilot, and Git
• Experience with monorepos and module/micro-frontend architectures
• Exposure to Cesium and iTwin.js or other digital-twin / BIM / CAD platforms.
• Experience integrating or building AI/Copilot-assisted features
• Familiarity with WebGL/3D rendering performance in web apps.
• A great Team and culture
• An exciting career as an integral part of a world-leading software company providing solutions for architecture, engineering, and construction
• An attractive salary and benefits package.
• A commitment to inclusion, belonging and colleague wellbeing through global initiatives and resource groups.
• A company committed to making a real difference by advancing the world’s infrastructure for better quality of life, where your contributions help build a more sustainable, connected, and resilient world.