# Hammad Ali > Senior Software Engineer | 12+ years of exp | Python, Java, Spring Boot, Node.js ,Go, C#/.NET, React, gRPC, Microservices, Kafka, AWS, Azure, GCP, APIs, Docker, Kubernetes, Redis, SQL, NoSQL | Open to work | REMOTE-ONLY Location: Richmond, Texas, United States Profile: https://flows.cv/hammadali Senior Software Engineer with over 12 years of experience architecting scalable backend systems for healthcare, retail, e-commerce, and fintech industries. I specialize in microservices architecture, event-driven systems, and cloud technologies, delivering innovative solutions that enhance operational efficiency and user engagement. Passionate about mentoring teams and transforming complex technical challenges into streamlined, impactful solutions. I excel in designing and implementing FHIR-compliant APIs, GraphQL, and RESTful services, with a focus on real-time data processing and system reliability. My technical toolkit includes Kafka, Redis, ELK stack, and CI/CD pipelines, enabling seamless integration and robust performance. I thrive in agile environments, collaborating with cross-functional teams to align technical solutions with business goals. At Centene, I developed a microservices-based backend for the Wellframe care app, integrating WebSockets and Twilio SDK for real-time communication and telehealth features. At Healthmine, I architected a Kafka-based event-driven platform for health plan engagement, ensuring scalability and compliance with healthcare standards. My work consistently drives measurable improvements in system performance and user experience. I’m eager to join a forward-thinking organization where I can leverage my expertise in backend development and cloud architecture to create impactful solutions. I seek opportunities to lead innovative projects, mentor emerging engineers, and contribute to cutting-edge technologies that solve real-world problems. ## Work Experience ### Senior Backend Engineer @ Centene Corporation Jan 2023 – Present • Designed a modular, event-driven, scalable backend architecture compliant with HIPAA and GDPR for Wellframe care mobile app using Python, FastAPI, Flask, Docker, Kubernetes and AWS to handle sensitive patient data (PHI) while supporting real-time communication, data analytics, and personalized care plans. • Built compliance-ready RESTful APIs using FHIR standards with libraries like fhirclient and FastAPI to support healthcare interoperability, and validated against FHIR schemas using pydantic models integrated with fhir-py. • Implemented encryption using the cryptography Python library, role-based access control (RBAC) and authentication (OAuth 2.0/JWT) using PyJWT and audit logging and monitoring using ELK stack (Elasticsearch, Logstash, Kibana) for real-time logging to ensure robust encryption (AES-256). • Wrote unit tests with pytest to check encryption, built CI/CD pipelines using Github Actions and Jenkins with scripts to scan code for compliance and performed regular audits using OpenSCAP. • Deployed an auto-scaling architecture on Kubernetes and monitored with Prometheus/Grafana and optimized database queries to maintain <100ms latency. • Built data validation pipelines in Flask using Kafka for streaming data ingestion and Cerberus for schema validation to handle unstructured/incomplete patient data. Managed analytics integration using Elasticsearch for search/analytics, integrated scikit-learn and TensorFlow for insights and Apache Spark for big data processing. • Worked closely with product managers, frontend engineers and mobile engineers to refine requirements, define clear and efficient API contracts and mentored junior and mid-level engineers providing SQL query optimization and algorithmic feedback, code reviews, and guiding on problem-solving, architectural patterns through one-on-one meetings and direct chatting. ### Senior Software Engineer @ Healthmine Jan 2020 – Jan 2022 • Designed a backend system for Healthmine’s Quality Relationship Management (QRM) platform, a cloud-based SaaS solution designed to manage member engagement for health plans, integrating data from disparate sources, enabling omnichannel outreach and providing real-time analytics. • Architected a microservices-based SaaS platform for QRM using Docker and Kubernetes to support multiple health plans with isolated data and hosted on Amazon Web Services for scalability and zero-downtime updates. • Built a combination of SQL and NoSQL databases using PostgreSQL, MongoDB and DynamoDB to handle both structured and unstructured data and collected data from EHRs, pharmacy, CAHPS/HOS survey sources using FHIR-based APIs like HAPI FHIR and architected a Kafka-based event-driven architecture for HL7 messages via Tenasol. • Developed FHIR-compliant RESTful and GraphQL APIs for a white-labeled mobile app and third-party integration to enable seamless data exchange with EHRs and other Health IT systems. • Implemented attribute-based access control and end-to-end encryption using OAuth2, SAML, OpenID Connect, AES-256 and TLS 1.3 to protect sensitive patient data, ensuring compliance with HIPAA, GDPR and HL7 standards. • Built dashboards using Tableau and enabled real-time analytics for Star Ratings, gap closure and ROI tracking using Apache Spark. • Implemented real-time monitoring using Datadog to track system health, performance metrics and detect anomalies and ensured SaaS agility requirements with CI/CD pipelines using Jenkins. ### Software Engineer II @ PwC Jan 2016 – Jan 2019 | Houston, Texas, United States • Developed server-side logic, APIs and microservices for an omnichannel platform at Sam’s Club team, implementing real-time updates in inventory management, payment and order processing using Go, Python, gRPC, Kafka, Azure API Management, Docker and Kubernetes. • Built a microservice for an inventory service component using Go, Kafka, Redis, PostgreSQL, WebSockets and Azure DevOps which improved real-time stock updates and availability check features and enhanced customer satisfaction. • Implemented a payment service and a notification service using Python, FastAPI, Stripe SDK, Celery and Twilio SDK which streamlined transaction processing, enhanced fraud checks and improved post-order communication through emails/SMS to increase security and customer engagement. • Developed DailyPay's cre product, a real-time Earned Wage Access (EWA) platform built on a microservices-based architecture hosted on GCP which facilitated accurate earnings calculations and instant fund disbursements, improved user satisfaction and financial accessibility. • Designed and built microservices for Earnings, Ledger, Payments and Reconciliation using Python, FastAPI, Pandas, Kafka, gRPC, Go, PostgreSQL, Redis, Stripe/Ach API, Celery and API Gateway following Domain-Driven Design (DDD) principles which enhanced system modularity and improved transaction accuracy. • Implemented optimistic locking with Redis for fast checks and PostgreSQL for durable transactions, combined with the Saga pattern for orchestration in a distributed system to ensure the successful concurrent transfer requests and prevent inconsistent balances across services. ### Full Stack Engineer @ Fosad Consulting Jan 2013 – Jan 2015 • Refactored a web playback UI to migrate the legacy vanilla JavaScript-based components for playback controls to React class components and integrated with Node.js backend services for data fetching. • Built Express.js APIs for serving playback data, integrated with internal services via REST APIs for buffering and deployed them on AWS. • Developed interactive 3D visualizations using WebGL and Three.js, enabling immersive, browser-based experiences for product configurators and data visualization tools. • Developed a new pet info management CMS tool which is fully customized and user-friendly using React, Jotai, Typescript, Node, SQL, and MUI. • Instituted an all-encompassing testing strategy using Jest and Cypress, leading to 89% coverage of the client codebase in the testing phase to ensure high code quality and reliability. ## Education ### Bachelor's degree in Computer Science Texas A&M University ## Contact & Social - LinkedIn: https://linkedin.com/in/hammad-ali-01 - Portfolio: https://calendar.app.google/3CUnEoKtixUaULMz8 - GitHub: https://github.com/0xcodemate --- Source: https://flows.cv/hammadali JSON Resume: https://flows.cv/hammadali/resume.json Last updated: 2026-04-17