# Sahal H. > Full-Stack software engineer (ex-Salesforce, ex Oracle) Location: San Mateo, California, United States Profile: https://flows.cv/sahal Exploring the intersection between healthcare and cybersecurity. ## Work Experience ### Senior Full Stack Engineer @ CareFirst BlueCross BlueShield Jan 2025 – Present | San Mateo, CA ● Developed and implemented a Java 17 SpringBoot REST API backend, React.js JavaScript framework, TypeScript frontend (UI & UX) for claim data visualizations and statistical analysis dashboards; reduced claim adjudication errors by 50% ● Leveraged AI-assisted development tools (Amazon Q, Kiro) to accelerate development workflows. ● Built a medical code group search web app (AngularJS + Django), cutting lookup time by 10%. ● Implemented digitization workflow for HIPAA compliant Medicare/Medicaid (AngularJS JavaScript framework frontend + Java 17 Spring Boot REST API) end-to-end; submissions increased claims adjudication efficiency by 50%; ### Senior Full Stack Engineer @ Technuf Jan 2023 – Jan 2025 | Maryland, United States ● Designed and implemented a scalable text messaging solution for schools using TypeScript, React.js frontend and Java EE SpringBoot REST API backend with Node.Js JavaScript framework for middleware ● Used AI-assisted development tools: Claude Code and Codex to accelerate development workflows ● Built an LLM-powered support assistant leveraging RAG (vector retrieval + grounding) and MCP tool servers, orchestrated in n8n, to answer questions from internal National 4-H Council documentation; reduced average time-to-answer by 50%. ● Developed a comprehensive helpdesk solution and end-to-end React.js JavaScript framework frontend, Python Django backend for the National 4H Council. ● Deployed a Jenkins instance in Kubernetes AWS environment that is used company-wide for CI/CD pipeline and improved DevOps practices. ● Enhanced QA team efficiency by 20% through Jenkins deployment in a Kubernetes cloud environment. ● Deployed Wazuh SIEM to enhance company wide security posture ### Full Stack Software Engineer @ Salesforce Jan 2022 – Jan 2023 | San Francisco Bay Area • Enhanced efficiency of microservices in distributed systems by 50% by load testing using New Relic and deploying using Helm charts, Docker (for containerization), Kubernetes clusters to maintain proper scaling of resources. • Implemented backend for certification tool for a marketplace of enterprise APIs using Java (SpringBoot Framework) to reduce certification time by 50%. • Integrated third-party APIs (AWS CodeBuild, SonarQube and Snyk) to backend of website, reducing errors in certification reports by 90% • Increased efficiency of API for log retrieval system by 50% Designed and deployed API for license key generation for new APIs in the marketplace • Configured and managed an AWS RDS and AWS Lambda database using Terraform • Enhanced efficiency of microservices in distributed systems by 50% by load testing using Docker and Kubernetes clusters to maintain proper scaling of resources. • Improved accuracy of data and user experience in JavaScript React.JS frontend by integrating publication information about APIs such as dates of deployment and certification in landing page ### Full Stack Software Engineer @ Cerner Corporation Jan 2020 – Jan 2022 | Kansas City, Missouri • Designed and unit tested Java Eclipse Jersey multi-tenant RESTful API to access prescription orders by doctors in Sweden that was FHIR compliant • Designed and deployed JavaScript React.Js frontend and Node.js backend application which reduced inefficiencies and incoherence of prescription orders made by doctors as measured by customer feedback by 50% • Implemented precise and efficient UX and UI in C++ application for presenting contextual information about prescriptions for pediatric and pregnant patients • Built a custom JavaScript React.js app with Material UI and Python Django backend using Jenkins RESTful APIs used company wide, resulting in a 30% reduction in deployment time and improving the overall CI/CD process by 10% ### Student Analyst @ IBM Jan 2019 – Jan 2019 | Plattsburgh, New York, United States * IBM – Certified at IBM Cyber Skills Leadership Challenge, * Worked with IBM cybersecurity specialists to emulate security breaches and investigate how QRadar could have prevented the breach (2013 Target Data Breach) * Used QRadar SIEM threat management system to filter and analyze network traffic * Used Agile methodologies (e.g.,SCRUM) for time management and productivity * Configured customized firewalls using Palo Alto Networks training program * Conducted independent research on different security breaches ### Intern @ Bard College Media Corps Jan 2017 – Jan 2018 | Annandale-On-Hudson, New York Redesigned static UX of the project website: Enhanced website data analytical features using Google Charts Increased user interactivity using infographics to represent apple cultivar information Created database using CMS (Wagtail) for data entry for future back-end developers ### Intern @ Square Hospitals Ltd, Dhaka Jan 2015 – Jan 2015 | Bangladesh,Dhaka I worked as an intern in several different departments including general surgery and radiology. I worked as an observer and as a physician's scribe. I did patient history and data collection. I have experience working with PACS and RIS. I learned the basics of radiology technology such as MRI, CT and PET. ## Education ### Bachelor of Science - BS in Computer Science State University of New York at Plattsburgh ### Bachelor's degree in Computer Science Bard College ### Associate's degree in Biology, General Bard College at Simon's Rock ### Full Stack Developer Coding Dojo ## Contact & Social - LinkedIn: https://linkedin.com/in/sahalhussain --- Source: https://flows.cv/sahal JSON Resume: https://flows.cv/sahal/resume.json Last updated: 2026-04-16