Technical Support Engineer (Fintech)

Location: London, United Kingdom

Company

Airwallex provides unified payments and financial infrastructure for global businesses through integrated business accounts, payments, spend management, treasury, web solutions, and APIs.

What you will do

• Provide technical support, consulting, and integration best practices to developers, merchants, and internal teams.
• Investigate post-integration issues through customer tickets and internal support channels.
• Test code, software, hardware, devices, endpoints, payment APIs, and ecommerce products.
• Install and configure test environments and identify irregular product behavior.
• Communicate technical issues and create customer-facing technical documentation, sample code, log searches, and FAQs.
• Coordinate communication and incident response with customers, stakeholders, and senior leadership, including occasional weekend and holiday on-call coverage.

Requirements

• Bachelor’s degree or higher in Computer Science or a related field.
• Professional experience in programming, technical support, implementation, or a related role.
• Strong troubleshooting, problem-solving, prioritization, organization, and customer communication skills.
• Technical knowledge sufficient to communicate with Engineering and Product teams.
• Experience with at least one of Python, Java, PHP, C#, JavaScript, or shell scripting.
• Familiarity with web technologies, HTTP/HTTPS, REST, JSON, SOAP, SQL, Splunk, and Grafana.

Nice to have

• Experience in ecommerce, payments, or fintech.
• Demonstrated ability to learn new technologies and products quickly.

Culture & Benefits

• Work on financial infrastructure used by businesses worldwide.
• Founder-like ownership, rapid learning, and end-to-end responsibility are valued.
• Collaborative environment focused on curiosity, sound judgment, and solving complex problems.
• Occasional weekend and holiday coverage is required for on-call duties.