Senior Software Developer – Integrations, Platform

• Build and maintain the platform's critical integrations: billing ERP, payment gateway (Pix, boleto, card, and reconciliation webhooks), CRM, and digital signature.
• Design internal APIs and platform standards (versioned contracts, idempotency, observability) shared across the area's products.
• Operate the application release pipeline: CI/CD, builds via EAS, and publishing to app stores (App Store and Google Play).
• Develop daily using React, React Native/Expo, TypeScript, and PostgreSQL, with code review as a core team quality practice.
• Support the application in production after release, with special focus on the reliability of payment integrations — reconciliation, reprocessing, and audit trails.

Requirements

• Bachelor's degree in Computer Science, Software Engineering, Computer Engineering, Information Systems, Systems Analysis and Development, or other Engineering disciplines.
• Experience with EAS (Expo Application Services) and publishing to app stores (App Store / Google Play).
• Strong software engineering knowledge, with significant experience in systems integrations (ERP, payment gateways, CRM, or similar).
• Solid TypeScript/Node.js skills.
• REST APIs, webhooks, queues, and asynchronous processing with requirements for idempotency, reprocessing, and error handling.
• Strong PostgreSQL skills, including data modeling and performance tuning.
• Git/GitHub and basic CI/CD knowledge.
• Experience with Supabase (RLS, Edge Functions, Auth, Storage).
• Observability (Sentry, structured logging).
• Security and LGPD (Brazilian data protection law) applied to financial data.
• React Native/Expo.
• Minimum of 5 years' experience in software development, with critical production integrations (payments, ERP, or equivalent).
• Experience with payment gateways, CRMs, billing ERPs, and digital-signature platforms.

Core Competencies

Demonstrates expertise in building and maintaining critical integrations, with a strong focus on payment gateways and ERP systems. Proficient in developing and supporting applications using React, TypeScript, and PostgreSQL, while ensuring compliance with security standards and observability practices.

Highest-signal resume keywords

• React Native/Expo
• TypeScript/Node.js
• PostgreSQL
• Systems Integrations
• CI/CD

ATS Optimization Keywords

Hard Skills

• TypeScript
• Node.js
• PostgreSQL
• REST APIs
• Webhooks
• Asynchronous Processing
• Data Modeling
• Performance Tuning
• Git/GitHub
• EAS

Certifications & Qualifications

• Bachelor's Degree in Computer Science
• Software Engineering
• Information Systems

Industry Keywords

• Payment Gateway
• Billing ERP
• CRM
• LGPD
• Financial Data

Tools & Technologies

• CI/CD
• Sentry
• Structured Logging
• Supabase
• Digital Signature

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