Hamza Raja

Senior Software Engineer at Iver Soft

Lead a small team for high-profile clients, delivering cutting-edge solutions that meet and exceed expectations. Worked in an Agile environment, participating in sprint planning, daily stand-ups, and retrospectives to improve team efficiency. Developed and maintained RESTful APIs using Nest.js and Express.js, handling over 1M+ requests daily with minimal latency. Built microservices with Nest.js and Express.js, implementing Dependency Injection and modular architecture for scalability. Designed and implemented React applications with reusable components, optimized state management, and dynamic UI rendering for a seamless user experience. Developed real-time applications using Socket.io and Nest.js, enabling instant messaging features with low-latency performance. Optimized database performance using Redis and Elasticsearch, implementing efficient caching and search capabilities for high-speed data retrieval. Deployed and managed applications on Azure/AWS, leveraging Docker, Kubernetes,

Software Engineer at Iver Soft

Collaborated with clients across diverse industries to deliver software solutions under tight deadlines and high-pressure environments. Engaged directly with clients to understand requirements, troubleshoot issues, and propose scalable solutions. Refactored monolithic applications into modular microservices with Nest.js, improving code maintainability and scalability. Applied middleware and guards in Nest.js for centralized request validation and authorization. Developed JWT authentication and OAuth2 authorization with Nest.js and Express.js, enhancing API security. Built dynamic frontend applications with React, leveraging React hooks and state management (Redux) to improve performance and maintainability. Deployed cloud-based services on AWS Lambda, S3 and Terraform, optimizing cost and scalability. Implemented Kafka-based real-time messaging for asynchronous communication between microservices. Ensured code reliability and maintainability with unit and integration testing (Jest, Cyp

Software Engineer at Soft Serve

Collaborated closely with product managers and designers to align technical solutions with business goals, ensuring seamless feature development and timely delivery. Led backend refactoring and optimization efforts, improving code maintainability and reducing database query execution time through indexing and caching strategies. Built and deployed Express.js APIs with rate limiting and CORS policies, ensuring application security. Developed and optimized GraphQL API consumption using Apollo Client, reducing over-fetching and improving query efficiency. Integrated Material-UI, Chakra UI, and Tailwind CSS for modern and accessible component-based styling. Translated complex technical concepts for non-technical stakeholders, enabling smooth communication. Developed a multi-language web application using i18n, supporting localization and internationalization. Integrated WebSockets and Socket.io for real-time data updates in a chat application. Collaborated with senior engineers to fix bugs

Senior Software Engineer - AI & Backend Systems at Self Employed

Designed and implemented production-ready LLM pipelines for transcription, clinical data extraction, and EHR-ready summaries, improving AI output reliability by 35%. Engineering prompt tuning, AB testing, and evaluation frameworks for non-deterministic LLM outputs, reducing hallucinations and extraction errors by 25%. Built real-time voice and streaming workflows with Twilio and WebRTC, enabling autonomous AI triage interactions with sub-second latency. Developed backend microservices with Python/Django and FastAPI, handling over 1 million requests per day with HIPAA-compliant encryption and auditability. Optimized multi-step AI orchestration workflows for latency and cost, implementing guardrails and confidence thresholds for clinical safety.

Senior Software Engineer - AI Systems & Cloud Backend at Iver Soft

Integrated LLM-powered clinical workflows into production, including prompt tuning, multi-step orchestration, and automated note generation. Constructed evaluation and monitoring frameworks to systematically test LLM outputs, ensuring reliability for health care decisions. Refactored legacy monoliths into modular microservices with Flask and FastAPI, increasing scalability and maintainability for AI workflows. Implemented serverless backend pipelines with real-time AI evaluation. Built secure APIs for clinical data access, enforcing encryption-at-rest, IAM role isolation, and audit logging across distributed systems. Directed junior engineers on scalable architecture patterns, containerization with Docker, and orchestration via Kubernetes.

Senior Health Platform Engineer at Iver Soft

Architected Python and C# microservices on AWS data transactions with 99.995% availability. Engineered high-concurrency REST and gRPC APIs enabling secure mobile and web diagnostics applications with sub-120 ms latency. Optimized complex SQL workloads across SQL Server, Snowflake, and ClickHouse, reducing analytical query time by 45%. Designed HIPAA-aligned security controls including encryption-at-rest, IAM isolation, and audit logging across distributed systems. Directed junior engineers on scalable architecture patterns, containerization with Docker, and orchestration via Kubernetes.