SaaS Application Engineer - Avaloq Developer

Location: London
Working Pattern: Hybrid - typically 2 days per week onsite
Contract Length: 24 weeks July 2026 - December 2026)
Hours: 40 hours per week
Rate: Up to -685 per day (Inside IR35 via Umbrella)
Job Title: Packaged/SaaS Application Engineer - Avaloq Developer

We are seeking an experienced Avaloq Developer to join a high-profile banking programme, delivering enhancements and customisations within the Avaloq Banking Suite. This is an exciting opportunity to work on complex banking solutions, contributing to the design, development and implementation of critical functionality within a fast-paced and collaborative environment.

The successful candidate will play a key role in the end-to-end delivery lifecycle, ensuring solutions are designed, developed and tested to meet both business and regulatory requirements.

• Design, develop and implement solutions within the Avaloq Banking Suite.
• Deliver high-quality Avaloq parameterisation, customisations and scripting packages.
• Develop and enhance Avaloq modules including:
  • Reports
  • Workflows
  • Context Actions
  • Order Validations
  • Keys
  • Additions
  • Other core banking functions
• Analyse functional and technical requirements and translate them into robust technical solutions.
• Develop interfaces and integrations with internal and external systems.
• Perform unit testing and support system and user acceptance testing activities.
• Ensure developments meet regulatory, security and quality standards.
• Collaborate with business analysts, architects, testers and stakeholders throughout the project lifecycle.
• Support issue resolution, troubleshooting and ongoing application enhancements.

• Proven experience as an Avaloq Developer within financial services or banking environments.
• Strong hands-on experience with Avaloq parameterisation and customisation.
• Expertise in developing Avaloq scripts, workflows, reports and core banking functionality.
• Experience with Avaloq interfaces and system integrations.
• Strong understanding of software development best practices and testing methodologies.
• Ability to interpret business requirements and deliver effective technical solutions.
• Experience working within Agile and project delivery environments.
• Excellent analytical, problem-solving and communication skills.

• Experience working on large-scale banking transformation programmes.
• Knowledge of private banking, wealth management or core banking operations.
• Exposure to regulatory and compliance-driven development within financial services.
• Experience supporting production releases and post-implementation activities.

• Competitive day rate of up to -685 per day Inside IR35 (Umbrella).
• Hybrid working arrangement with a central London location.
• Opportunity to work on a major banking platform within a highly skilled delivery team.
• Immediate project impact with a well-defined contract assignment through to the end of 2026.

If you are an experienced Avaloq Developer looking for your next contract opportunity in London, we''d love to hear from you.