Senior Software Engineer (Fintech)

TL;DR

Senior Software Engineer (C#/Node.js): Building and scaling third-party integration capabilities for a fintech platform with an accent on API design, event-driven systems, and scalable connectivity. Focus on designing robust integration solutions, optimizing financial workflows, and improving system reliability.

Location: London, United Kingdom (Flexible workplace)

Company

hirify.global is a high-growth fintech company that modernizes payables operations and automates financial workflows for global SMBs.

What you will do

• Design and maintain scalable software and third-party integrations across the stack.
• Develop APIs, services, and event-driven systems for seamless connectivity with external platforms.
• Lead architecture discussions and help shape the technical direction of integration solutions.
• Collaborate with Product and Design teams to refine requirements and propose technical solutions.
• Conduct code reviews and mentor other engineers to maintain high code quality and maintainability.
• Work with external partners and vendors to design and build integration solutions.

Requirements

• Strong experience building backend systems using C# and Node.js.
• Proven experience designing and maintaining third-party integrations and API patterns (REST, SOAP, webhooks).
• Proficiency with SQL (MSSQL) and NoSQL (MongoDB, Redis) databases.
• Experience with event-driven architectures and messaging systems such as RabbitMQ or Bull/Redis.
• Experience working with cloud platforms, preferably AWS.
• Strong understanding of clean coding practices and software design principles.

Culture & Benefits

• Open, inclusive, and supportive engineering culture within a late-stage scale-up.
• Equity options in the company.
• Private medical and dental coverage.
• Office perks including daily breakfast, snacks, and lunch provided three days a week.
• Monthly allowances for mobile (£100) and internet (£26).
• 25 days of holiday plus bank holidays.