Webnyxa Technologies
Prashant Kumar
Backend Engineer
Resume profile for Prashant Kumar, Backend Engineer at Webnyxa Technologies.
H-53, First Floor, Office No. 01, Sec 63, Noida, Uttar Pradesh - 201301, IN.
Professional Summary
Backend Engineer with 3.5+ years of experience specializing in scalable Laravel and PHP applications, enterprise integrations, and production-grade backend systems. Experienced in designing secure APIs, database architectures, multi-tenant SaaS platforms, and complex business workflows while integrating services such as Salesforce, QuickBooks Online, Stripe, RevenueCat, OpenAI, and MuleSoft. Passionate about modernizing legacy applications, automating business processes, and building reliable systems that power real-world products across healthcare, manufacturing, eCommerce, and SaaS domains. Skilled in transforming complex business requirements into maintainable, high-performance backend solutions while leveraging modern AI development tools to improve engineering productivity without compromising code quality or architecture.
Over the past year, I have primarily worked as a Backend Engineer at Webnyxa Technologies, leading backend development, enterprise integrations, API architecture, and production system enhancements across multiple client projects — including CopyArtwork, WheresMyJob, Manasprint, Docturnal, StemWave, JPetto.io, and LegendarySolutions.io.
As a Backend Developer, I design, develop, deploy, and maintain scalable backend systems across production applications. My responsibilities extend beyond API development into database architecture, business logic, enterprise integrations, AWS deployments, and production support — including JWT/Passport/OAuth authentication, custom WordPress plugins, WooCommerce extensions, queue workers, and cron-based automation.
I focus on maintainable systems over short-term fixes: shared APIs for web and mobile, queue-based QuickBooks sync, isolated multi-tenant databases for Docturnal, and Salesforce as the source of truth for StemWave. Outcomes include launched mobile backends without redesigning live systems, automated accounting and subscription workflows, AI-powered artwork generation, and fully automated clinic onboarding for healthcare SaaS.
Experience
3.5+ years building scalable Laravel/PHP backends, enterprise integrations, multi-tenant SaaS platforms, and production systems across healthcare, manufacturing, eCommerce, and SaaS.
Skills
Backend
APIs & Integrations
Database
Cloud & Infrastructure
AI Development
Tools
Projects I Worked On
CopyArtwork — Artwork Production & Order Management Platform
Overview
Enterprise artwork management platform powering vector conversion, embroidery digitizing, color separation, and print-production services. Worked across both the legacy Core PHP platform and the Laravel-based mobile application backend, owning API development, third-party integrations, AI-powered features, payment workflows, and production infrastructure.
Key Contributions
- Developed and maintained the Core PHP production platform responsible for artwork ordering, file processing, customer management, and business workflows.
- Built and maintained the complete Laravel backend powering the CopyArtwork mobile application, designing REST APIs while reusing and extending the existing production database without disrupting live operations.
- Designed and integrated an AI-powered artwork assistant across web and mobile using OpenAI APIs, enabling customers to generate and refine artwork concepts from natural language prompts.
- Implemented secure authentication, payment workflows, order processing APIs, and backend services used by both internal systems and customer-facing applications.
- Designed production-safe QuickBooks Online synchronization using OAuth 2.0, background queue processing, retry mechanisms, audit logging, and cron workers so invoices sync without impacting checkout performance.
- Developed reporting and reconciliation tools, including Excel exports, advanced filtering, and administrative dashboards that simplified financial operations.
- Improved platform reliability by optimizing database queries, file upload validation, API performance, server configuration, and production monitoring across AWS-hosted infrastructure.
WheresMyJob — Production Workflow Management System
Overview
Production workflow management platform used by printing and apparel businesses to manage quotations, artwork approvals, manufacturing, payments, production tracking, and customer communication. Worked on both the Laravel web platform and the mobile application backend while maintaining a shared production database.
Key Contributions
- Designed and developed backend modules for the Laravel web platform, implementing business workflows, API integrations, payment processing, and production management features.
- Built the complete backend powering the WheresMyJob mobile application while reusing the existing production database, allowing the mobile app to launch without affecting the live web platform.
- Extended the existing database architecture by carefully introducing new tables and relationships instead of redesigning the schema, ensuring backward compatibility with production data.
- Designed secure JWT-based authentication for the mobile application along with role-aware API authorization and session management.
- Built REST APIs supporting order management, customer workflows, production tracking, notifications, and mobile-specific functionality.
- Integrated third-party services including Stripe payments, Firebase Cloud Messaging, and external APIs to automate customer communication and business operations.
- Optimized database queries and backend workflows to support growing operational requirements while maintaining performance for existing production users.
Manasprint — UPSC Learning Platform
Overview
Comprehensive UPSC examination preparation platform providing learning content, mock tests, subscription management, progress tracking, and administrative reporting. Led backend development, API architecture, database design, and subscription management for both the student application and administration portal.
Key Contributions
- Designed and developed the majority of the Laravel backend, including API architecture, database design, administrative modules, and business logic.
- Built Passport-based OAuth authentication for secure mobile API access and user management.
- Integrated RevenueCat for subscription validation, purchase synchronization, and webhook processing across Android and iOS platforms.
- Designed a custom subscription management dashboard that displays purchase history, subscription status, plan information, renewal and expiration dates, and user activity directly inside the admin panel.
- Implemented progressive exam retry scheduling that automatically increases waiting periods based on previous attempts while maintaining complete tracking of user progress.
- Built APIs supporting quizzes, badges, progress tracking, subscriptions, user management, and reporting.
- Optimized database queries and backend caching to improve responsiveness while supporting large volumes of learning content and assessment data.
Docturnal — Multi-Tenant Healthcare Management Platform
Overview
A multi-tenant SaaS healthcare platform that enables clinics to create and manage their own branded digital workspace for doctors, staff, and patients. Each clinic receives a dedicated database, custom subdomain, role-based access, appointment scheduling, video consultations, and patient management tools. Led backend development for tenant provisioning, authentication, API architecture, and automation that allows clinics to become operational within minutes.
Key Contributions
- Designed and developed the complete Laravel backend supporting clinic onboarding, patient management, appointments, payments, and administrative operations.
- Built a fully automated multi-tenant architecture that provisions a new clinic by creating a dedicated database, executing migrations, applying clinic preferences, and generating a custom subdomain after successful subscription payment.
- Developed secure role-based authentication allowing clinic administrators to manage doctors, reception staff, and patients while ensuring complete tenant isolation between clinics.
- Implemented appointment booking, patient records, real-time notifications, chat, and video consultation workflows using WebSockets for seamless doctor-patient communication.
- Automated onboarding by sending clinic credentials and workspace details via email immediately after successful provisioning, eliminating manual setup and reducing deployment time.
- Integrated OpenAI APIs for intelligent healthcare assistance and contextual insights that complement consultation workflows.
StemWave — Salesforce Integrated Medical E-commerce Platform
Overview
WordPress-based eCommerce platform for an FDA-listed non-invasive medical device specializing in acoustic wave therapy. Responsible for backend integrations, Salesforce synchronization, custom WordPress plugins, authentication workflows, WooCommerce customization, and business automation.
Key Contributions
- Developed multiple custom WordPress plugins to extend WooCommerce beyond its standard capabilities while maintaining compatibility with existing business workflows.
- Designed a custom Salesforce synchronization pipeline that automatically transferred orders, products, shipping charges, discounts, coupons, and customer information into Salesforce through MuleSoft after WooCommerce order placement.
- Implemented webhook-based communication with MuleSoft and developed REST endpoints that captured synchronization responses, stored detailed logs, and powered an internal monitoring dashboard.
- Replaced standard WordPress registration with Salesforce-based identity validation, allowing only customers already registered within Salesforce to access the platform and place orders.
- Built automated Salesforce-to-WordPress user provisioning APIs that create WordPress users with the correct roles and membership groups whenever new accounts are created inside Salesforce.
- Managed WooCommerce roles, memberships, access control, custom business rules, and store configuration while supporting ongoing production enhancements.
JPetto.io — Salesforce Product Website
Overview
Corporate marketing website showcasing Salesforce-native products and consulting services. Responsible for WordPress development, page implementation, responsive layouts, and Salesforce lead capture integrations.
Key Contributions
- Developed multiple responsive landing pages using WordPress while closely matching provided UI designs.
- Implemented reusable page sections and content structures to simplify future website expansion.
- Integrated lead generation forms directly with Salesforce, enabling automatic CRM submission without manual data entry.
- Optimized page layouts and content presentation for performance, SEO, and user experience.
LegendarySolutions.io — Corporate Website
Overview
Corporate WordPress website developed for a consulting business with a focus on responsive marketing pages and CRM-driven lead generation.
Key Contributions
- Built responsive marketing pages using WordPress based on client-provided designs.
- Integrated Salesforce-connected lead generation forms across multiple pages.
- Customized layouts and page components to improve usability while maintaining consistent branding.
- Assisted with content implementation, deployment, and ongoing website maintenance.