Architecting Scalable
Backend Systems.

Carclenx (Pexa)

JULY 2025 – PRESENT

• Designed and delivered scalable backend services and high-performance REST APIs powering production web and mobile applications, successfully supporting production traffic of ~1,000 requests per second.
• Engineered asynchronous processing pipelines using Redis Streams and background worker services, significantly improving application responsiveness by decoupling long-running operations from the request lifecycle.
• Architected and implemented a Worker & Staff Analytics module, optimizing task allocation logic and contributing to an 80% reduction in service cancellations.
• Designed and implemented secure authentication, authorization, session lifecycle management, and Role-Based Access Control (RBAC), strengthening application security across multiple user roles and administrative workflows.
• Architected Finite State Machine (FSM)-driven backend workflows to manage conversational state transitions and complex business processes, improving maintainability and reducing workflow complexity.
• Designed a distributed payroll management system that reduced manual HR effort by approximately 70–80% through workflow automation.
• Optimized MongoDB schemas, indexing strategies, aggregation pipelines, cursor-based pagination, and geospatial queries, reducing API response times by 30–50% for data-intensive endpoints.
• Designed resilient integrations with messaging platforms and payment gateways by implementing validation, retry mechanisms, and fault-tolerant error handling to ensure reliable communication between distributed services.
• Developed Angular-based user interfaces and integrated frontend components with backend APIs to deliver seamless end-to-end application functionality.
• Collaborated with engineering teams to define API contracts, review backend architecture, and deliver production-ready solutions following Clean Architecture principles and backend engineering best practices.

Cordova Educational Solutions

OCT 2024 – JUNE 2025

• Developed and maintained scalable backend services and REST APIs supporting production Learning Management System (LMS) and business applications.
• Modernized legacy backend modules by decomposing tightly coupled code into reusable components and optimizing core algorithms using efficient data structures, improving code maintainability while increasing processing performance by approximately 20–40%.
• Optimized database queries and backend business logic to improve application responsiveness and ensure consistent data handling across production systems.
• Worked across the stack by developing React.js features, enhancing existing user interfaces, and integrating frontend components with backend services to deliver complete application functionality.
• Collaborated with developers and product stakeholders to translate business requirements into reliable, production-ready software solutions.
• Investigated production issues through debugging, root cause analysis, and backend optimization, improving application reliability and overall system stability.

Quest Innovative Solution

DEC 2022 – SEPT 2024

• Developed and maintained 30+ REST APIs for multiple client applications using Node.js and Express.js, delivering scalable backend services for booking systems and other business solutions.
• Built reusable backend modules and business logic that accelerated feature development while following clean coding and software engineering best practices.
• Modernized legacy backend modules by refactoring tightly coupled code into reusable components, improving maintainability, readability, and long-term code quality.
• Designed and optimized relational database queries and backend business logic, improving application performance, data consistency, and overall system reliability.
• Integrated third-party APIs and external services to streamline business workflows and extend application capabilities across multiple client projects.
• Developed responsive React.js user interfaces and integrated frontend components with backend APIs to deliver seamless end-to-end application functionality.
• Diagnosed and resolved backend and frontend production issues through debugging, code optimization, and root cause analysis, improving software stability and reducing recurring defects.
• Collaborated with senior developers throughout the software development lifecycle, contributing to feature implementation, testing, deployment, and continuous enhancement of production applications.

Carclenx (Pexa)

JAN 2022 – JUNE 2022

• Developed responsive Angular-based administrative dashboards and integrated frontend components with backend APIs to deliver intuitive and efficient user experiences.
• Built and maintained RESTful APIs using Node.js and Express.js to support internal business applications and operational workflows.
• Integrated third-party APIs and external services to extend platform capabilities and enable seamless data exchange across business systems.
• Collaborated across frontend and backend development to implement reliable, maintainable, and production-ready application features.
• Investigated and resolved application issues through debugging, testing, and code enhancements, improving software stability, maintainability, and overall application quality.