Ahmad Saleem - Senior Software Engineer

Career Highlights

Experience

Progressively growing from associate engineer to senior engineer at CureMD, with a consistent focus on backend-heavy full-stack delivery for healthcare and payments.

Jul 2025 – Present

Senior Software Engineer · CureMD

Own architecture and delivery for critical payment and billing services used by enterprise healthcare clients.

Led payment platform architecture across microservices, reducing reconciliation errors by 30% and processing time by 20% through API redesign and asynchronous messaging.
Implemented centralized observability with ELK across distributed services, cutting incident triage and response time by 40%.
Introduced Redis caching for high-traffic payment and billing APIs, improving response latency and throughput under production load.
Worked on a collection-agency project to streamline tracking of payments moved to agencies and how much was recovered.

Aug 2023 – Jul 2025

Software Engineer · CureMD

Delivered patient payment products and data migration workflows in close collaboration with product, QA, and operations teams.

Delivered ADPH Self Pay with a real-time patient payment dashboard and migrated 1M+ records with zero data loss.
Translated billing and compliance requirements into implementation plans, milestones, and production-ready releases.
Drove multi-language, multi-timezone billing localization and CI/CD release quality through Azure DevOps, improving international client satisfaction by 40% while sustaining a 90% SLA resolution rate.
Contributed to team standards for API design, code reviews, test quality, and operational readiness.

Aug 2022 – Jul 2023

Associate Software Engineer · CureMD

Built core capabilities for batch processing and payment reconciliation while strengthening system reliability and release safety.

Engineered batch payment automation and optimized SQL procedures/APIs, reducing manual reconciliation effort by 50% and improving runtime performance.
Built background processing services and retry workflows for settlement, reconciliation, and scheduled payment jobs.
Contributed to CI/CD quality gates and rollback checklists in Azure DevOps to lower release risk for payment services.

Selected projects

Work

2023–Present Live

TrueDoc Healthcare Platform

End-to-end healthcare platform connecting patients and doctors across web and mobile with secure consultations and payment flows.

Built and scaled backend APIs for appointments, consultations, authentication, and payment orchestration in a microservices architecture.
Integrated Agora SDK for real-time video and JazzCash/Easypaisa for payment workflows with secure transaction handling.
Optimized MySQL procedures and Redis caching to keep API performance under 200ms in key user journeys.

Node.js · TypeScript · MySQL · Redis · RabbitMQ · Docker · ELK Stack

View live site

2024

Payment Processing System

Enterprise payment platform modernization for faster, safer, and more reliable transaction processing at scale.

Redesigned service boundaries and asynchronous workflows to reduce processing errors by 30% and improve speed by 20%.
Implemented robust error handling and operational visibility for faster issue detection and recovery.
Strengthened deployment confidence through CI/CD improvements and production validation checks.

.NET Core · SQL Server · Azure DevOps · Angular

2023

ADPH Self Pay Dashboard

Real-time payment tracking solution built for hospital finance operations with high-volume data migration and validation.

Delivered real-time visibility into patient payments, balances, and transaction lifecycle states.
Migrated over 1M patient records with ETL automation and strict data validation pipelines.
Partnered with stakeholders to ensure compliance requirements were met before launch.

.NET Core · SQL Server · Angular

What I work with

Skills

Backend Development

Node.js, .NET Core, TypeScript, C#, Python. Building RESTful and GraphQL APIs, designing microservices, and implementing event-driven services with RabbitMQ.

Frontend & Mobile

Angular, React, and Flutter. Comfortable delivering full-stack products, with backend architecture and reliability as my strongest area.

Databases

MySQL, SQL Server, MongoDB, Redis. Experience with schema design, query optimization, and caching strategies for low-latency APIs.

DevOps & Delivery

Docker, Azure DevOps, CI/CD pipelines, ELK Stack, DigitalOcean. Focused on predictable releases, observability, and production stability.

Senior Full-Stack Engineer with a backend specialization in large-scale, distributed systems