Application Engineer

Location: Central London (Hybrid, 3 days onsite)

Salary: Up to £40,000

Our client is looking for an Application Engineer to take ownership of a suite of business-critical internal web applications.

Working alongside the Head of Digital Transformation & Change and a Senior Developer, you'll become the technical owner of three core internal applications, maintaining, enhancing and evolving the platforms while ensuring they remain performant, reliable and easy to use.

Responsibilities

• Take ownership of three business-critical internal web applications.
• Maintain, enhance and support existing functionality, resolving bugs, performance issues and technical debt.
• Design and implement new features based on business requirements and user feedback.
• Work on authenticated, multi-user business applications, ensuring reliability, performance and scalability.
• Continuously improve usability, accessibility and overall user experience.
• Prepare the applications for international expansion, including localisation, translations and jurisdiction-specific workflows.
• Collaborate closely with business stakeholders to deliver practical, user-focused solutions.
• Leverage AI-assisted development tools as part of your day-to-day engineering workflow.

Technical Skills

• Experience using AI-assisted development tools to improve engineering productivity is essential.
• Experience owning and maintaining complex web applications.
• Strong understanding of application architecture, state management and performance optimisation.
• Experience working with authenticated, multi-user business applications.
• Excellent debugging and problem-solving skills.
• Comfortable working closely with non-technical stakeholders.
• Experience with authentication, RBAC or permission-based systems.
• Experience with caching, automated testing and performance optimisation.
• Exposure to localisation or internationalisation.

What We're Looking For

Candidates with experience building and owning complex, authenticated applications, coupled with a passion for AI-assisted development, will be particularly well suited to this opportunity.

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