Senior Backend Engineer

Job title: Senior Backend Engineer

Job type: Contract

Contract Length: 6-months

Rate: $25 per hour

Role Location: Remote - LATAM

The company: Our client provides businesses with a leading one-click checkout solution that drives secure, high-converting customer experiences.

Role and Responsibilities: As the primary backend engineer, you will own the services powering these experiences, building and operating a scalable NestJS backend that manages accounts, money movement, KYC, and integrations with banking, brokerage, and financial data partners. This is a high-ownership role where you'll make architectural decisions, deliver features end-to-end, and ensure the reliability and performance of production systems.

Responsibilities

• Design, develop, and maintain RESTful APIs using NestJS and TypeScript, consumed by the company’s Android application (Kotlin).

• Own integrations with key fintech partners, including:

• Synctera (Banking-as-a-Service)

• Plaid (Account Linking)

• Atomic (Brokerage)

• Zero Hash (Cryptocurrency)

• Experian (Credit Data)

• Build and maintain critical financial workflows, including:

• ACH transfers

• Card transactions

• Rewards

• Payroll processing

Job Requirements

• 5+ years of backend engineering experience building and operating production systems
• Strong proficiency in at least one modern backend language (such as Node.js/TypeScript, Go, Java, or Python)
• Experience with NextJS is a plus
• Production experience with MongoDB (or another document database), Redis, and asynchronous job queues
• Experience designing and maintaining versioned APIs for mobile applications.
• Hands-on experience with modern infrastructure and deployment technologies, including Docker, Kubernetes, and GitHub Actions (or equivalent CI/CD platforms).
• Proven ability to own systems end-to-end—from architecture and implementation to deployment, monitoring, and incident response.

Accessibility Statement: ?

We make an active choice to be inclusive towards everyone every day.? Please let us know if you require any accessibility adjustments through the application or interview process.??

Our Commitment To Diversity, Equity, And Inclusion Signify’s mission is to empower every person, regardless of their background or?circumstances, with an equitable chance to achieve the careers?they deserve. Building a diverse future, one placement at a?time.??

Check out our DE&I page here