Full Stack Engineer

We’re looking for a highly motivated, curious, and fast-learning Full Stack Engineer to join our team. In this role, you’ll work across frontend and backend systems, build user-facing features, and help shape the future of Melio’s B2B payments platform.

Qualifications:

• 1- 2 years of experience as a full-stack engineer working with both frontend and backend technologies.

• Experience working with React.

• Experience developing backend services and APIs using Node.js or Python.

• Experience building applications with JavaScript/TypeScript, HTML5, and CSS.

• Self-driven and highly motivated, with eagerness to learn and take ownership.

Bonus points:

• Familiarity with cloud environments, ideally AWS.

• Experience working with relational databases.

• Familiarity with testing frameworks (Jest, Cypress, Playwright, etc.).

• AI Coding experience (Cursor, CoPilot, or similar)

A day in the life and how you’ll make an impact:

• Each team member is an all-around player who influences the product, designing the overall experience and charges the development.

• You’ll be using technologies like React, Node.js, AWS, and scalable databases to build a unique B2B payments experience.

• You’ll be surrounded by peers that are passionate about engineering craftsmanship, building an end-to-end product, mastering design, coding, testing, and deployment phases.

About the Engineering department:

The Engineering department is the backbone of Melio. We build, scale, and maintain the technical infrastructure that processes over $100B in annual payments for small businesses nationwide.

Following our acquisition by Xero, we're tackling an even more exciting challenge: integrating Melio's payment platform with Xero's accounting software to create a unified financial ecosystem. This means building robust, scalable systems that seamlessly connect two powerful platforms while maintaining the security and reliability that financial services demand.

Our Stack:

We're all-in on AWS Serverless—meaning fully managed infrastructure that lets us build and scale faster than ever. We use TypeScript and Python for consistency, combining relational and document databases, and deploy via SAM CLI built on CloudFormation. Serverless gives us the agility to innovate rapidly while maintaining enterprise-grade reliability.

As part of our engineering team, you'll work on problems that matter: real-time payment processing, fraud prevention, API integrations, data synchronization, and user experience optimization. You'll have the autonomy to make architectural decisions, the support of a world-class team, and the satisfaction of seeing your code impact millions of small businesses.

If you're ready to build systems that scale, solve hard problems, and help small businesses thrive, we want to talk to you.

Read more about our Engineering department on our tech blog.

About Melio:

Melio, a Xero company, is revolutionizing how small businesses handle payments. By combining Melio's best-in-class bill pay platform with Xero's global accounting expertise, we're building the ultimate financial command center for American small businesses. We're the fastest-growing B2B payment solution in the US—but we're still small enough that you can make real, visible impact as we scale to reach millions more businesses.
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