Helix Synergy Corp

Key Responsibilities: UI Implementation: Develop and maintain user-facing features using React.js (including Hooks and Functional Components) , ensuring high performance on mobile and desktop platforms. State Management: Implement effective and scalable application state logic using libraries such as Redux, Zustand, or the Context API. Design Translation: Collaborate closely with UI/UX designers to translate wireframes and visual mockups (e.g., Figma, Sketch) into high-fidelity, semantic HTML and CSS/SASS. Testing: Write comprehensive unit tests for React components and user flows using testing frameworks like Jest and React Testing Library. Back-End Development & API Design API Creation: Design, implement, and maintain secure, efficient RESTful APIs (or GraphQL endpoints) using a server-side framework (e.g., Node.js/Express, Python/Django/Flask, or Java/Spring ). Payment Integration: Integrate and manage third-party payment gateways (e.g., Stripe, PayPal, Razorpay) , including setting up webhooks, handling transaction lifecycle events, and managing refund/cancellation logic. Database Management: Write complex, optimized queries and manage database schemas (both SQL like PostgreSQL/MySQL and NoSQL like MongoDB). Security: Implement best practices for API security, authentication (e.g., OAuth, JWT), and PCI DSS compliance principles when handling transaction data. General & DevOps Practices Code Quality: Participate actively in code reviews , ensuring code adheres to company standards, is clean, maintainable, and well-documented. Agile Methodology: Participate in daily stand-ups, sprint planning, and retrospectives within an Agile/Scrum environment. Troubleshooting: Diagnose, debug, and resolve production issues across the full stack in a timely manner. Deployment: Assist with deployment pipelines and infrastructure management (CI/CD) where necessary. Required Technical Qualifications Front-end Core: 2+ years of dedicated professional experience developing production applications using React.js . Payment Experience: Proven experience with integrating at least one major payment gateway API (e.g., Stripe, Braintree, etc.) and handling transactional data flow. Language Proficiency: Strong expertise in JavaScript (ES6+) . Back-end Proficiency: Demonstrated experience working with one major server-side language/framework (Node.js/Express preferred, or Python/Java). Database: Hands-on experience designing and interacting with either relational (PostgreSQL, MySQL) or non-relational (MongoDB) databases. Security: Awareness of API security best practices and secure handling of sensitive financial information. Tools: Expert use of Git and experience working with cloud environments (AWS, GCP, or Azure). Preferred Qualifications (Nice-to-Haves) Experience with TypeScript in a production environment. Familiarity with containerization technologies ( Docker ). Experience with advanced React frameworks like Next.js for server-side rendering (SSR) or static site generation (SSG). Familiarity with financial reporting, invoicing, and subscription management API Job Type: Full-time Pay: ₹25,000.00 - ₹30,000.00 per month Benefits: Cell phone reimbursement Health insurance Internet reimbursement Provident Fund Work Location: In person