Integration Engineer

Job Description

Workana is the largest remote work platform for talents in Latin America. Our segment, Workana Premium, focuses on matching exceptional professionals with leading and innovative companies around the globe. Enjoy competitive compensation in USD, dedicated support, and the flexibility of remote work within a dynamic environment that fosters collaboration and professional advancement.

We are proud to present you with the following opportunity.

About Our Client

Our client is a fast-growing fintech infrastructure company building Merchant Connectivity solutions that enable banks and financial institutions to seamlessly manage subscription payments, payment switches, and cancellations directly from their banking applications.

Their API-driven solution allows a digital bank (e.g., a large neobank) to integrate merchant connectivity capabilities directly into its app — empowering users to switch payment methods or cancel subscriptions without leaving the banking environment.

The company is expanding its Merchant Connectivity solution into Latin America, starting with Colombia, followed by Brazil and Argentina.

This is a highly technical integration project focused on browser automation and secure credential-based workflows.

Project Overview

To enable payment switching and subscription cancellation at scale, the team must build automated integrations with merchant platforms using headless browser scripting.

Each integration requires:

• Authenticating into a merchant platform using real credentials
• Navigating the merchant’s user interface programmatically
• Executing payment switch or cancellation workflows
• Securely handling credential input and temporary card details
• Restoring the user’s original state if required

The primary focus in Q1 is:

• Colombia: 1–3 merchants
• Brazil: 1 merchant
• Argentina: 1 merchant

Selected merchants may include platforms such as:

• MercadoPago
• Netflix
• Spotify
• Amazon
• Disney+
• OpenAI
• dLocal

Role Overview

We are looking for a Merchant Integration Engineer to design and build headless browser automations that replicate real user behavior across merchant platforms.

This is not a backend API integration role. Many of these merchants do not expose APIs for payment method switching or cancellation — meaning the solution relies on robust UI automation and resilient scripting.

You will work on a per-merchant integration basis and collaborate closely with product and engineering teams to ensure reliability, security, and compliance.

Responsibilities

• Build headless browser scripts to authenticate and navigate merchant platforms
• Automate payment switch and subscription cancellation flows
• Implement secure credential handling via temporary secure forms
• Ensure sensitive data is not stored and is deleted promptly after use
• Handle edge cases (2FA, UI changes, session expiration, anti-bot mechanisms)
• Design resilient automation logic that mimics human interaction patterns
• Collaborate with API and backend teams to connect merchant scripts to the broader platform
• Document flows and edge cases for future maintainability

Security & Compliance Mindset

This project involves temporary access to real user credentials and card details strictly for testing integration flows.

Candidates must demonstrate:

• Experience working with sensitive data securely
• Strong understanding of secure data handling practices
• Comfort operating in high-trust, compliance-driven environments
• Clear documentation of data deletion and safe handling practices

Who Should Apply

This role is ideal for engineers who:

• Enjoy reverse-engineering complex UI flows
• Have built robust automation systems before
• Understand real-world payment workflows
• Can work independently and ship production-ready scripts quickly
• Are comfortable operating in highly technical, non-standard integration environments

Requirements

Technical Requirements

• Strong experience with headless browser automation (e.g., Playwright, Puppeteer, Selenium)
• Experience building browser scripts that interact with dynamic web applications
• Deep understanding of session management, authentication flows, and cookies
• Experience navigating anti-bot systems and CAPTCHA handling strategies (where compliant)
• Familiarity with payment flows, subscription management interfaces, or fintech products
• Strong debugging skills in complex UI environments
• Ability to write clean, maintainable automation scripts

Benefits

• Project-based engagement (merchant-by-merchant scope)
• Paid per validated integration
• Compensation in USD
• Fully remote
• Potential for long-term expansion as LatAm rollout scales