Senior Backend Integration Engineer, Node.js

This is a fully remote position, open to applicants in Mexico.

📋 Description

• Create and execute **robust backend integrations** across diverse systems (SaaS, APIs, internal services)

• Develop and sustain **secure, scalable REST APIs**

• Design and manage **event-driven systems** (webhooks, asynchronous processing, retries, idempotency)

• Implement authentication and authorization workflows:

• - OAuth2 (authorization code, client credentials)

• - JWT (token validation, security considerations)

• - API Keys / HMAC as necessary

• Address **real-world integration challenges**:

• - duplicated events

• - out-of-order data

• - partial failures

• Troubleshoot and resolve **production issues in distributed systems**

• Ensure comprehensive **logging, monitoring, and error handling**

• Engage in **technical decision-making and trade-offs**

⛳️ Requirements

• 4+ years of experience in backend development

• Extensive experience with **Node.js (profound understanding of async I/O and event loop behavior)**

• Strong grasp of **HTTP protocol and API design principles**

• Demonstrated experience designing and managing **webhooks in a production environment**, including:

• - idempotency handling

• - retries and failure recovery

• - event deduplication

• Experience implementing **OAuth2 workflows**, including:

• - authorization code

• - client credentials

• - token lifecycle and refresh tokens

• In-depth understanding of **JWT beyond basic functions** (signing, validation, security implications)

• Experience with **production systems** operating under real constraints

🏝️ Benefits

• Collaborate with **global brands and innovative startups**.

• Remote work / Home office options available.

• If a hybrid or on-site model is necessary, you will be informed from the initial session.

• Work schedule will align with the designated project/team.

• Monday to Friday work schedule.

• Legal benefits (Applicable for Mexico).

• Day off on your birthday.

• Private health insurance (Applicable for Mexico).

• Life insurance (Applicable for Mexico).

• Work within multicultural teams.

• Access to courses and certifications.

• Opportunities to attend meetups with industry experts and leading universities.

• Participate in virtual networking events and interest groups.

• English language classes available.

• Career advancement opportunities within our various business lines.

• Proudly recognized as a Great Place to Work.