Senior Full Stack Engineer - Checkout & Payments

Triwill Group; United States; On-site; USD 140,000 - 170,000; Full time

Job summary

Triwill Group is seeking a Senior Full Stack Engineer for Checkout & Payments, based in the United States. You’ll build a world-class consumer checkout experience, owning initiatives from concept through launch in a small, autonomous team of experienced engineers.

The role blends modern frontend with backend APIs, data models, and payments infrastructure. You’ll collaborate with Product, Marketing, and Design to improve conversion and simplify healthcare spending for consumers.

Qualifications

• Senior full stack engineering role focused on checkout and payments.
• Own substantial, user-facing initiatives from concept through launch.
• Collaborate with Product, Marketing and Design to shape experiences.

Responsibilities

• Build a world-class consumer checkout and payments experience.
• Own frontend and backend initiatives from concept through launch.
• Establish frontend standards and technical practices as the platform scales.

Job description

Description:

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Full Stack Engineer - Checkout & Payments based in the United States.

This is a senior full stack engineering role focused on building a world-class consumer checkout and payments experience. You’ll own substantial, user-facing initiatives from concept through launch, working in a small team of highly experienced engineers with significant autonomy. The role combines modern frontend engineering with backend APIs, data models, and payment infrastructure. You’ll partner closely with Product, Marketing, and Design to shape experiences that improve conversion and make complex healthcare spending simple for consumers. Performance, experimentation, and data-driven decision-making will be central to your work. You’ll also help establish frontend standards and technical practices as the platform scales.