API Engineer (Fintech)

TL;DR

API Engineer (Fintech): Building and optimizing API infrastructure that enables product integrations and AI services to interact with core accounting and payroll software. Focus on architecting scalable, secure systems that automate complex accounting workflows and handle sensitive financial data.

Location: Must be based in or able to commute to the Warwick area (Hybrid role).

Company

hirify.global provides industry-leading, award-winning software solutions for accountants and bookkeepers across the UK and Ireland, focusing on cloud-based payroll, tax, and practice management tools.

What you will do

• Design and implement RESTful APIs to expose product capabilities to AI services and third-party integrations.
• Build production-grade services using C# .NET and Azure.
• Ensure robust security via OAuth and modern authentication patterns.
• Implement comprehensive logging, monitoring, and error handling for production environments.
• Optimize API performance and database query efficiency.
• Collaborate with AI platform and product engineering teams on architectural standards.

Requirements

• Software engineering experience with a strong focus on backend and API development.
• Strong C# .NET skills for building scalable services.
• Solid experience with SQL and relational database optimization.
• Proven ability to design RESTful APIs including HTTP methods and error handling.
• Familiarity with Azure cloud services and deployment patterns.
• Testing mindset with experience in unit and integration testing.

Nice to have

• Experience with OpenAPI/Swagger documentation tools.
• Knowledge of Azure API Management or API gateways.
• Exposure to event-driven patterns or message queues.
• Understanding of CI/CD pipelines and DevOps practices.

Culture & Benefits

• Competitive salary with performance-based bonus scheme.
• Comprehensive health and life insurance packages.
• Company pension contributions.
• 25 days of annual leave.
• Supportive environment with on-site perks including free food and parking.
• Commitment to ongoing professional development and training.