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I'm Abdul Rehman, a Senior Software Engineer with 7+ years of experience building high-concurrency, scalable web architectures. I'm specialized in the React/Next.js ecosystem and Node.js microservices, delivering low-latency, resilient distributed systems. In my work, I focus on performance engineering, TDD, and cloud-native infrastructure across Fintech, Healthcare, and SaaS domains. I'm passionate about optimizing data paths, leading full-stack migrations, and reducing latency by significant margins. I thrive in collaborative teams and enjoy architecting robust, secure multi-tenant solutions.…I'm Abdul Rehman, a Senior Software Engineer with 7+ years of experience building high-concurrency, scalable web architectures. I'm specialized in the React/Next.js ecosystem and Node.js microservices, delivering low-latency, resilient distributed systems. In my work, I focus on performance engineering, TDD, and cloud-native infrastructure across Fintech, Healthcare, and SaaS domains. I'm passionate about optimizing data paths, leading full-stack migrations, and reducing latency by significant margins. I thrive in collaborative teams and enjoy architecting robust, secure multi-tenant solutions.

Abdul Rehman

Full Stack Developer, Web Developer, Front-End Developer, +2

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I'm Abdul Rehman, a Senior Software Engineer with 7+ years of experience building high-concurrency, scalable web architectures. I'm specialized in the React/Next.js ecosystem and Node.js microservices, delivering low-latency, resilient distributed systems. In my work, I focus on performance engineering, TDD, and cloud-native infrastructure across Fintech, Healthcare, and SaaS domains. I'm passionate about optimizing data paths, leading full-stack migrations, and reducing latency by significant margins. I thrive in collaborative teams and enjoy architecting robust, secure multi-tenant solutions.…I'm Abdul Rehman, a Senior Software Engineer with 7+ years of experience building high-concurrency, scalable web architectures. I'm specialized in the React/Next.js ecosystem and Node.js microservices, delivering low-latency, resilient distributed systems. In my work, I focus on performance engineering, TDD, and cloud-native infrastructure across Fintech, Healthcare, and SaaS domains. I'm passionate about optimizing data paths, leading full-stack migrations, and reducing latency by significant margins. I thrive in collaborative teams and enjoy architecting robust, secure multi-tenant solutions.

Available to hire

I’m Abdul Rehman, a Senior Software Engineer with 7+ years of experience building high-concurrency, scalable web architectures. I’m specialized in the React/Next.js ecosystem and Node.js microservices, delivering low-latency, resilient distributed systems. In my work, I focus on performance engineering, TDD, and cloud-native infrastructure across Fintech, Healthcare, and SaaS domains.

I’m passionate about optimizing data paths, leading full-stack migrations, and reducing latency by significant margins. I thrive in collaborative teams and enjoy architecting robust, secure multi-tenant solutions.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Work Experience

Lead Software Developer at BUGGCY

February 1, 2023 - Present

Led the migration of legacy modules to Next.js 14 App Router with Server Components, reducing client-side bundles by 35%. Optimized Node.js/Express.js middleware and introduced Redis caching, delivering a 40% improvement in API response times and lowering server overhead. Refactored MongoDB schemas and optimized aggregation pipelines, cutting query execution times by 30% for high-traffic rental reporting tools. Engineered identity management with AWS Cognito and JWT, implementing RBAC to secure multi-tenant SaaS data. Pioneered trunk-based development with automated GitHub Actions pipelines, reducing deployment lead times from days to minutes. Managed complex frontend state with Redux Toolkit for real-time filtering across large property datasets. Led secure integration of third-party APIs via standardized adapter patterns for SaaS platforms.

Senior Software Engineer at DevsInc

February 1, 2018 - January 1, 2023

Leveraged AWS Lambda and EventBridge to automate background healthcare data processing, reducing manual administrative tasks by 60%. Built high-concurrency backend services for a healthcare staffing engine using Node.js and DynamoDB with Single Table Design to achieve millisecond latency at scale. Improved First Contentful Paint (FCP) by 25% through code-splitting, lazy loading, and asset optimization in a React-based staffing dashboard. Achieved 90% unit test coverage for critical business logic using Jest and React Testing Library, reducing production regressions. Orchestrated containerized environments with Docker and AWS ECS to ensure parity across development, staging, and production. Conducted security audits and implemented multi-factor authentication to meet HIPAA/privacy requirements.