Senior Frontend Engineer

In AECOMs AI Engineering team your code will directly shape the physical world around us. We build AI-driven technology that revolutionises how infrastructure and buildings are designed and engineered; reducing waste cutting CO₂ and making the built environment more efficient and sustainable. This is where software has measurable real-world impact.

With our AI Engineering team weve created a unique setup: a lean highly technical team with the speed and ownership of a start up backed by the scale resources and domain expertise of one of the worlds leading engineering firms.

There has never been a better time to be  are leading the industrys AI transformation and with our people and technology we deliver excellence and innovate with impact.

We invite you to bring your bold ideas and big dreams to solve the worlds most complex challenges. Were one global team driven by our common purpose to deliver a better world. Join us.

What Youll Do

As part of an AI-first engineering team you will own the frontend experience of our AI-driven products collaborating closely with AI/ML engineers to bring advanced capabilities to life through polished high-performance interfaces. You will work primarily with Svelte and React (Type Script) to build the tools that thousands of engineers use daily turning complex AI and engineering outputs into intuitive delightful user experiences.

This is a frontend-focused role. While you will interact with backend services and APIs the core of your work will be crafting exceptional user interfaces and frontend architecture.

• Design build and maintain rich interactive user interfaces using Svelte and React (Type Script) delivering production-grade frontend experiences that surface complex AI and engineering data
• Collaborate closely with product managers ML engineers and backend engineers to define and ship high-impact frontend features end-to-end
• Translate complex AI and engineering outputs into clear interactive and highly usable components with strong attention to UX performance and accessibility
• Own frontend architecture decisions including state management component design and design system development
• Drive technical excellence by improving frontend architecture performance and bundle optimisation.
• Take ownership of frontend features from concept to deployment influencing product direction interaction design and technical trade-offs.
• Build high-performance interactive 2D and 3D web experiences for complex engineering visualisations

Qualifications :

Must-Haves

• Proven and demonstrable hands-on experience building production applications with Type Script (Svelte or React)
• Degree in computer science software engineering or a related technical field or equivalent demonstrable experience
• Deep understanding of modern frontend architecture component design patterns and state management
• Strong web fundamentals: HTML CSS browser APIs performance and accessibility
• Experience consuming and integrating REST APIs and real-time data into frontend interfaces
• Familiarity with frontend build tooling (Vite Svelte Kit or similar) and testing frameworks

Preferred Skills

• Experience writing automated tests (unit integration e2e).
• Familiarity with Python backend services (enough to read debug and contribute to APIs you consume)
• Knowledge of design systems and frontend architecture best practices

Additional Information :

Our Hiring Process

• 25-minute screening call
• Take-home challenge: A hands-on task to assess your problem-solving and technical skills
• Combined technical and cultural interview (in-person)
  • Whiteboard Interview: 1-hour with 2 of our engineers to discuss your solution to the take-home challenge
  • Culture fit: 30-minute meeting with our leadership team

Why Join Us

• Work on real-world problems where AI creates measurable impact.
• Be part of a team where your work matters and your ideas become real.
• Collaborate with sharp driven colleagues in a culture of trust ownership and high standards.
• Contribute to making the built environment smarter and more sustainable.

At AECOM we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment all newly hired employees are required to attend an in-person Day 1 onboarding at an AECOM office location as a condition of employment.

About AECOM

AECOM is proud to offer comprehensive benefits to meet the diverse needs of our employees. Depending on your employment status AECOM benefits may include medical dental vision life AD&D disability benefits paid time off leaves of absences voluntary benefits perks flexible work options well-being resources employee assistance program business travel insurance service recognition awards retirement savings plan and employee stock purchase plan.

AECOM is the global infrastructure leader committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities we solve our clients complex challenges in water environment energy transportation and…