Job Summary: Join Paytrack's Integration team to develop, evolve, and maintain integrations between Paytrack and various ERP systems, contributing to strategic growth and increasing professional experience. Key Highlights: 1. Opportunity to contribute to results and grow professionally 2. Develop and maintain integrations with various ERP systems 3. Focus on performance and security of connectors, APIs, and scripts Paytrack is a market-leading company in corporate travel, payment, and expense management solutions. We serve over 1,000 large corporate clients. Our mission is to simplify corporate expense management, making it as intuitive and efficient as personal experiences, while accommodating the complexity required by large enterprises. **Working on the Integration team** is an excellent opportunity to contribute to the company’s results and establish yourself, while simultaneously expanding your professional expertise. Here, you are a key player in the company’s strategy and growth! We are a company of innovative, creative, and diverse people, so we are fully open to welcoming you with all your diversity. Your Responsibilities * Develop, evolve, and maintain **integrations between Paytrack and various ERP systems** * Design and implement **connectors, APIs, and integration scripts**, focusing on performance and security. * Collaborate with product, implementation, and engineering teams to design scalable technical solutions. * Participate in **end-to-end integration projects**, from technical discovery through final delivery. * Ensure **quality and traceability** throughout the development lifecycle, contributing to standardization and documentation of integrations. * Identify opportunities for automation and optimization of technical workflows. ✔️ Technical Requirements * Solid experience with **JavaScript (Node.js)**. * Knowledge of **system integration and REST APIs**. * Experience with **SQL databases**. * Familiarity with **code versioning (Git)** and software architecture patterns. * Strong ability to read and interpret technical documentation (Swagger, API manuals, JSON schemas, etc.). Nice-to-Haves * Prior experience with **corporate ERP integration projects**. * Knowledge of **messaging systems (RabbitMQ, Kafka)** or **asynchronous integrations**. * Experience with **TypeScript**, **Fastify**, or **NestJS**. * Experience in **SaaS B2B projects** and high-volume data integrations.