Help & Supportcareers@gravityer.com
Node.js Backend Developer with 4.0 Years of experience building secure, high-volume payment systems.
AI is analyzing your overall score…
Identifying your key strengths…
Evaluating your skill match against the job requirements…
Assessing your cultural and operational fit
Node.js Backend Developer with 3+ years of experience building secure, high-volume payment systems for 3D Secure ACS (Mastercard & Visa) at CoreCard Software. Proficient in Node.js, Express.js, JavaScript (ES6+), React.js, MongoDB, and SQL Server. Strong command of RESTful API design, microservices architecture, asynchronous programming (async/await, Promises), event-driven systems, and CI/CD pipelines. Experienced in Agile teams and delivering full-stack features end-to-end.
Bansal Institute of Science & Technology, Bhopal
B.Tech · Computer Science
August 1, 2018 – June 30, 2022
CoreCard Software
Software Developer
June 1, 2022 – Present
India
3D Secure Payment Gateway - ACS
June 9, 2026 – Present
Implemented EMV 3DS 2.0 authentication flows (challenge and frictionless) for Mastercard and Visa card networks using Node.js — enabling secure cardholder verification during online transactions. Integrated HSM-based tokenization pipeline for secure card data encryption and session-scoped token management using MongoDB for real-time state storage. Optimized API throughput to handle high-concurrency payment request scenarios, ensuring sub-second response times for authentication decisions.
Release Management Dashboard
June 9, 2026 – Present
Full-stack release pipeline tracker integrated with Jenkins; RBAC, input validation, and audit trails reduced manual coordination effort by 80%.
ACS-MPI Dashboard
June 9, 2026 – Present
Developed backend REST APIs and middleware for a secure 3D Secure operations dashboard — supporting transaction search, card lifecycle management, and client configuration. Implemented RBAC and audit logging for all sensitive operations (card block/unblock, client setup) to meet compliance and security requirements.
Cultural Fit Analysis
The candidate's experience in developing critical payment infrastructure and dashboards with RBAC and audit logging demonstrates a strong understanding of compliance and security, which is crucial in many enterprise environments. Their involvement in full-stack projects and collaboration with cross-functional teams indicates adaptability and a team-oriented mindset. The projects show a focus on robust, secure, and scalable solutions, aligning with best practices.
Soft Skills & Operational Fit
The candidate has experience working in Agile teams, participating in code reviews, sprint planning, and technical documentation, indicating good operational fit and collaborative soft skills. The ability to optimize API throughput for high-concurrency scenarios suggests a focus on performance and reliability.