Senior Full Stack Engineer – React / Java / Node.js (US Timings – Remote)

Senior Full Stack Engineer – React / Java / Node.js (US Timings – Remote) Location: Work-from-Home (India-based) Working Hours: 7:00 PM – 3:00 AM IST (US EST Timings) Department: Engineering | Industry: FinTech / SaaS Experience: 4+ years | Compensation: Competitive  About Global PayEX At Global PayEX, we build world-class AI-driven fintech platforms trusted by global banks and Fortune-scale enterprises. Our solutions power real-time reconciliation, payments, and working-capital automation for clients like JPMorgan, Citi, ITC, and Tata Group. We’re expanding our global engineering coverage to support clients across the US and are seeking experienced full-stack engineers who thrive in distributed systems and collaborate effectively across time zones.  Role Overview We’re looking for a Senior Full Stack Engineer with strong expertise across modern frontend frameworks and backend microservices. You’ll architect and build scalable, secure, and high-performance enterprise applications — from intuitive user interfaces to resilient backend services. This is a hands-on remote role operating during US EST hours, ideal for an engineer who enjoys solving complex product challenges, optimizing system performance, and mentoring peers in a fast-moving, global setup.  Key Responsibilities Design and develop responsive frontend applications using React.js (preferred) or Angular. Architect and implement scalable backend services using Java (Spring Boot) or Node.js. Build and integrate secure RESTful APIs and microservices. Optimize frontend performance and ensure seamless backend integration. Design efficient MongoDB or relational database schemas for transactional workloads. Collaborate remotely with DevOps, QA, AI, and Product teams across time zones. Lead code reviews and enforce frontend/backend engineering best practices. Troubleshoot production issues across UI and service layers. Mentor junior engineers and contribute to sprint planning and architectural discussions. Participate actively in Agile ceremonies aligned to US hours.  Required Skills & Experience 4+ years of experience in full-stack development within SaaS or enterprise systems. Strong expertise in React.js (or Angular) and modern JavaScript (ES6+). Solid backend experience in Java (Spring Boot) or Node.js. Strong understanding of API design, authentication (JWT/OAuth), and web security best practices. Proficiency in MongoDB or relational databases. Experience with RESTful APIs and OpenAPI/Swagger documentation. Familiarity with Docker and containerized deployments. Strong debugging, performance tuning, and system design capabilities. Excellent communication skills for remote collaboration with US stakeholders.  Preferred Qualifications Experience in FinTech, Payments, ERP integrations, or Banking systems. Exposure to asynchronous programming or event-driven architectures. Familiarity with Kubernetes and CI/CD pipelines (Jenkins, GitLab CI, GitHub Actions). Working knowledge of cloud platforms (AWS/Azure/GCP). Experience building data-heavy dashboards or financial analytics interfaces.  Why Join Global PayEX Build enterprise-grade fintech systems used by global banks and Fortune enterprises. Own both the experience layer and backend intelligence layer of mission-critical platforms. Work alongside a world-class engineering team across US and India. Fully remote role with direct exposure to US clients and product leadership. Direct involvement with AI agents and real-time financial data systems. Competitive compensation and a clear growth trajectory into Engineering Lead or Architect roles.  How to Apply: Send your CV or GitHub profile to hr@ with the subject line “Senior Full Stack Engineer – US Timings (Remote) | [Your Name]”  

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