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DaCodes. logo
DaCodes.

Coding the world of tomorrow

Senior Backend Integration Engineer, Node.js

Solutions EngineerSolutions EngineerFull TimeRemoteSeniorTeam 201-500Since 2014H1B No SponsorCompany SiteLinkedIn

Location

Mexico

Posted

72 days ago

Salary

0

Seniority

Senior

Job Description

Senior Backend Integration Engineer, Node.js

DaCodes.

• Design and implement **robust backend integrations** across multiple systems (SaaS, APIs, internal services) • Build and maintain **secure, scalable REST APIs** • Design and operate **event-driven systems** (webhooks, async processing, retries, idempotency) • Implement authentication and authorization flows: - OAuth2 (authorization code, client credentials) - JWT (token validation, security considerations) - API Keys / HMAC when needed • Handle **real-world integration challenges**: - duplicated events - out-of-order data - partial failures • Debug and resolve **production issues across distributed systems** • Ensure proper **logging, monitoring, and error handling** • Participate in **technical decision-making and trade-offs**

Job Requirements

  • 4+ years of backend experience
  • Strong experience with **Node.js (deep understanding of async I/O and event loop behavior)**
  • Solid understanding of **HTTP protocol and API design**
  • Proven experience designing and operating **webhooks in production**, including:
  • idempotency handling
  • retries and failure recovery
  • event deduplication
  • Experience implementing **OAuth2 flows**, including:
  • authorization code
  • client credentials
  • token lifecycle and refresh tokens
  • Strong understanding of **JWT beyond basic usage** (signing, validation, security implications)
  • Experience working with **production systems** under real constraints

Benefits

  • Work with **global brands and disruptive startups**.
  • Remote work / Home office.
  • If a hybrid or on-site model is required, you will be informed from the first session.
  • Work schedule aligned with the assigned project/team.
  • Monday to Friday schedule.
  • Legal benefits (Applicable for Mexico).
  • Day off on your birthday.
  • Private health insurance (Applicable for Mexico).
  • Life insurance (Applicable for Mexico).
  • Multicultural teams.
  • Access to courses and certifications.
  • Meetups with industry experts and top universities.
  • Virtual networking events and interest groups.
  • English classes.
  • Opportunities within our different business lines.
  • Proudly certified as a Great Place to Work.

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