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Smart Working

Empowering companies to work with the best engineers in the world

Full Stack Developer

Full-stack EngineerSoftware EngineerFull TimeRemoteSeniorTeam 51-200H1B No SponsorCompany SiteLinkedIn

Location

Pakistan

Posted

6 days ago

Salary

0

Seniority

Senior

Job Description

Full Stack Developer

Smart Working

• Develop backend endpoints for the SmartEarn API integration as the primary day-to-day focus. • Test and stage the integration against the VDX sandbox environment. • Implement and monitor purchase and reward status lifecycles, including Pending, Approved, Refunded and Cancelled states. • Calculate reward values using commission-split data. • Implement real-time transaction tracking, reward status management and user notification flows. • Develop and maintain backend APIs and business logic using Node.js and TypeScript. • Periodically support the user-facing rewards interface using React Native. • Contribute to occasional full-stack development work on the Next.js Business Portal. • Design scalable solutions that support reconciliation and idempotent processing of financial and transactional data. • Work autonomously, fill gaps and deliver effectively where formal processes or documentation are limited. • Architect end-to-end product solutions rather than only executing predefined tickets. • Support frequent deployments, typically every one to two days, while maintaining the thoroughness required for financial and transactional logic.

Job Requirements

  • 6 years of professional experience developing backend APIs and business logic using TypeScript, Node.js and Express.
  • 4+ years of experience delivering API integrations using REST APIs, Webhooks and asynchronous or event-driven processing.
  • 5+ years of experience applying an architecture mindset to scalability, reconciliation and idempotency for financial or transactional data.
  • 2+ years of experience supporting mobile or frontend functionality using React Native.
  • 3+ years of experience working with SQL databases, including MySQL or PostgreSQL.
  • 3+ years of experience designing or developing microservices.
  • 1–2 years of experience using Next.js for full-stack development; equivalent React experience may be considered.
  • 2+ years of experience with automated testing using Jest, JUnit or another JavaScript or TypeScript testing framework.
  • 3+ years of experience with CI/CD and cloud delivery using Docker, GitHub Actions and GCP Cloud Build, or equivalent AWS tooling.
  • 2+ years of experience using Firebase or in-memory databases such as Redis.
  • Senior-level engineering experience, with at least 6 years of overall professional experience.
  • Ability to work independently and fill gaps within a startup environment.
  • Strong attention to detail when handling financial and transactional data.
  • Ability to work effectively with limited formal processes and documentation.
  • Ability to architect solutions and take end-to-end product ownership.
  • Ability to balance frequent delivery with the precision and thoroughness required for transactional systems.

Benefits

  • Fixed Shifts: 12:00 PM - 9:30 PM IST (Summer) | 1:00 PM - 10:30 PM IST (Winter)
  • No Weekend Work: Real work-life balance, not just words
  • Day 1 Benefits: Laptop and full medical insurance provided
  • Support That Matters:Mentorship, community, and forums where ideas are shared
  • True Belonging: A long-term career where your contributions are valued

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United States
$100K - $150K / year
Job Closed