Sr Software Engineer in London

About The Company

Arup is an independent, multidisciplinary firm comprising designers, planners, engineers, consultants, and technical specialists offering a comprehensive range of professional services. Fully employee-owned, the company maintains complete independence in decision‑making regarding its future direction and client engagements. Headquartered in the United Kingdom, Arup has established a global presence with offices across 33 countries, fostering a diverse and inclusive work environment. The firm is committed to innovation and excellence, leveraging its expertise to solve complex engineering challenges worldwide.

Arup's software division, Oasys, develops market‑leading tools that support Arup’s mission to improve the world through innovative engineering solutions. Notably, Oasys LS‑DYNA Environment software is widely used in automotive, nuclear, civil engineering, aerospace, seismic, geotechnical, and structural applications. Its primary function involves modeling and testing vehicle crashworthiness, alongside simulating critical scenarios in various engineering domains. The firm’s dedication to advancing simulation technology underscores its commitment to creating a safer, more sustainable future.

At Arup, we believe in harnessing the power of simulation and technology to shape a better future. Our projects are at the forefront of innovation, offering opportunities for professionals passionate about making a tangible impact. By joining Arup, you will collaborate with industry experts, work on cutting‑edge initiatives, and contribute to solutions that address real‑world challenges. We foster a culture of continuous learning, creativity, and shared purpose, encouraging our team members to push boundaries and drive positive change.

About The Role

The Senior Software Developer role at Arup is a pivotal position that combines technical expertise with innovative thinking to bring engineering simulations to life in the cloud. You will be instrumental in developing a sophisticated 3D Web Application designed to revolutionise how results are visualised and interpreted by engineers globally. This role offers a unique opportunity to work on a suite of web and cloud‑based applications that enhance the functionality and accessibility of Arup’s engineering tools. As a senior member of the development team, you will lead the design, development, and maintenance of new features, ensuring they meet business needs and technical standards. Your work will directly influence how complex simulations are communicated, making them more interactive and user‑friendly. Collaboration with cross‑functional teams—including designers, product managers and global developers—will be essential to deliver high‑quality solutions. Your contributions will help set new industry standards for simulation visualisation, ensuring Arup remains at the forefront of engineering innovation.

Qualifications

The ideal candidate will possess a strong background in UI development and modern front‑end technologies, including TypeScript, JavaScript, HTML5, CSS3, SASS, NodeJS, and Cypress. Experience with React is essential for creating interactive and dynamic web pages, while familiarity with 3D/WebGL frameworks such as Babylon.js or Three.js will be highly advantageous. Proven expertise in building Single‑Page Applications (SPAs) and enterprise‑scale web applications is required. Additionally, experience with cloud platforms like AWS, along with infrastructure management and DevOps practices, is important for this role. A bachelor’s or master’s degree in computer science, software engineering or a related field (minimum 2.1 or equivalent) is preferred, although substantial relevant work experience will also be considered. Excellent communication skills in English—both written and verbal—are necessary for effective collaboration with technical and non‑technical stakeholders.

Responsibilities

• Design, develop, and maintain new and existing features to meet business objectives and user needs.
• Collaborate with designers, product managers, global development teams, and stakeholders to define feature specifications and ensure seamless production releases.
• Build reusable components and front‑end libraries to streamline future development efforts.
• Maintain a high‑quality codebase through rigorous code reviews, adherence to coding standards, version control management, issue tracking, and comprehensive documentation.
• Implement manual and automated testing protocols to ensure application stability and performance.
• Manage task assignments effectively, providing team members with the necessary resources and support to succeed.
• Mentor and support team members in their professional development through regular feedback and knowledge sharing.
• Stay abreast of industry trends and emerging technologies to incorporate best practices into development processes.

Benefits

Arup offers an attractive salary package complemented by of the industry’s most comprehensive benefits schemes. All permanent employees are eligible for the Global Profit Share scheme, which provides additional financial rewards based on the firm’s performance, with up to two profit share payments annually. The company emphasises work‑life balance and flexible working arrangements, enabling employees to tailor their work schedules to accommodate personal commitments. Employees also benefit from opportunities to participate in cultural and social events, engage with local communities through initiatives such as STEM ambassador programmes, and join various staff networks focused on women, cultural diversity and LGBT+ inclusion. Arup fosters an inclusive environment that values individual contributions and supports diversity at all levels.

Equal Opportunity

Arup is an Equal Employment Opportunity (EEO) employer committed to fostering a diverse and inclusive workplace. We welcome applications from individuals of all backgrounds, regardless of sex, race, religion, national origin, age, sexual orientation, disability, veteran status, genetic information or other protected characteristics. We recognise that some disabilities may not be immediately visible and are dedicated to making reasonable adjustments throughout the recruitment process to ensure fair and equitable consideration for all candidates. We believe that diverse perspectives drive innovation and excellence and are committed to creating an environment where everyone can thrive.