Member of Technical Staff

Swipelux; United States; Remote; USD 120,000 - 190,000; Full time

Benefits offered by this job

Stock options

Fully remote

Job summary

Swipelux is seeking a versatile software engineer to build and evolve payment infrastructure and APIs in a small, remote engineering team. You’ll own features from prototype to production and collaborate directly with clients on integrations.

You will design and integrate payment providers, extend the core API, and improve developer tools. Experience across backend and frontend, strong API design, and comfort navigating ambiguity are required. Remote role with stock options.

Qualifications

• Production experience building across backend and frontend systems.
• Strong API design and architectural judgment.
• Solid engineering fundamentals in performance, reliability, and security.
• Comfort working independently in a small team and navigating ambiguity.
• Ability to use AI coding agents to coordinate a development cycle, with thoughtful review of their output.

Responsibilities

• Design and integrate payment providers into a shared infrastructure.
• Build and extend the core API used by client applications.
• Deliver tools for merchants and internal operational systems.
• Prototype and implement features across the stack, from initial design through production release.
• Work with clients on integrations and develop agents or internal tools that make launches more efficient.
• Improve API documentation and developer tools so merchants can integrate with less assistance.
• Help launch additional payment rails while keeping the system consistent and reliable.

Skills

Backend and frontend development

API design

Performance and reliability

Security basics

Independent in small team

AI coding agents coordination

Tools

Java

Spring Boot

PostgreSQL

React

Next.js

TypeScript

Azure

Vercel

Supabase

GitHub Actions

Job description

Role overview

Build and evolve software that helps businesses move money through payment providers and programmable settlement infrastructure. In a small, remote engineering team, you’ll own work across APIs, merchant-facing products, and internal systems, taking ideas from prototype to production and working directly with clients on integrations.

Responsibilities

• Design and integrate payment providers into a shared infrastructure.
• Build and extend the core API used by client applications.
• Deliver tools for merchants and internal operational systems.
• Prototype and implement features across the stack, from initial design through production release.
• Work with clients on integrations and develop agents or internal tools that make launches more efficient.
• Improve API documentation and developer tools so merchants can integrate with less assistance.
• Help launch additional payment rails while keeping the system consistent and reliable.

Requirements

• Production experience building across backend and frontend systems.
• Strong API design and architectural judgment.
• Solid engineering fundamentals in performance, reliability, and security.
• Comfort working independently in a small team and navigating ambiguity.
• Ability to use AI coding agents to coordinate a development cycle, with thoughtful review of their output.

Nice to have

• Experience in fintech, payments, or blockchain infrastructure.
• Familiarity with payment integrations such as SEPA, ACH, card processing, or regional payment rails.
• Experience with Java, Spring Boot, PostgreSQL, React, Next.js, or TypeScript. The described infrastructure also includes Azure, Vercel, Supabase, and GitHub Actions.

Benefits and work setup

• Fully remote role with competitive salary and stock options.
• Work in a small team where engineers take features from hypothesis and prototype through production.