Senior Python Backend Engineer with API & DB Expertise

Tran Ngoc Bao Long

Senior Software Engineer

+** (776) 698-702

Ho Chi Minh City, VN

********.*******@*******.***

SUMMARY:

Senior Software Engineer with 10+ years of experience building scalable web and mobile platforms across finance, healthcare, and retail.

Proficient in modern JavaScript frameworks, Python-based microservices (FastAPI, Flask, Django), and relational data modeling.

Collaborative and solution-oriented, with a proven ability to align technical implementation with business needs.

WORK EXPERIENCE:

Senior Software Engineer

Centene, St. Louis, MO - Jan 2023 – Nov 2025

-Built a conversational AI platform using React, React Native, Python (FastAPI, Django), and PostgreSQL to surface insights from Medicaid and Medicare clinical and claims data.

-Developed React/TypeScript/Redux dashboards to track utilization, quality, and costs, with exportable visuals tailored for care and finance teams.

-Created Python microservices (FastAPI, Django REST Framework) to generate clinical summaries and KPI alerts, integrating OpenAI/LangChain APIs for contextual Q&A in care coordination workflows.

-Designed normalized PostgreSQL schemas using Django ORM and SQLAlchemy to model program hierarchies and member segmentation across Medicaid plans.

-Tuned performance using code-splitting, SSR through Next.js, and memoization to ensure scalability when working with large statewide member datasets.

-Implemented CI/CD via GitHub Actions and Docker, supported by Pytest, Cypress, and Playwright—ensuring quality and faster delivery for enterprise-critical tools.

-Engaged with Medicaid/Medicare program teams and enterprise analytics groups to align product features with regulatory requirements, centering on care access, quality, and equity.

Senior Software Engineer

PwC, New York, NY - Jan 2018 – Dec 2022

Developed a COVID-19 vaccine scheduling and tracking platform using React, TypeScript, Python (Django, FastAPI), and PostgreSQL to streamline vaccination operations across Providence clinics.

-Built responsive, accessible UI components with React and Material UI, using React Query for efficient data fetching and local state caching across vaccination modules.

-Built REST/GraphQL APIs with Django and FastAPI for user and appointment logic, using Pydantic for validation and Celery for background jobs.

-Improved frontend performance with lazy loading, memoization, and code splitting to enhance responsiveness on low-bandwidth and mobile networks.

-Implemented CI/CD with Docker and GitHub Actions, and developed end-to-end and unit tests using Pytest and Cypress to ensure strong test coverage across key vaccine modules.

-Deployed application on AWS using EC2, S3, and RDS, integrating CloudWatch and Prometheus for uptime monitoring and incident alerts across microservices.

-Partnered with EHR vendors and clinicians to integrate patient records via FHIR, ensuring HIPAA-compliant data exchange.

Developed core features for Walmart’s omnichannel order fulfillment system across web and mobile platforms using React, React Native, and Python (Django, FastAPI).

-Built responsive React UIs with TypeScript, Redux, and Material UI to support BOPIS, curbside pickup, and inventory lookups for store associates.

-Delivered real-time React Native functionality using WebSockets and QR/barcode scanning to streamline ship-from-store workflows, reducing fulfillment errors and boosting pick-pack efficiency.

-Developed REST and GraphQL APIs using Django REST Framework and FastAPI for promotions, SLA-based picking, inventory locking (Redis), and warehouse container routing.

-Modeled complex inventory and fulfillment data using Django ORM with PostgreSQL and Redis to power availability checks and multi-node fulfillment logic.

-Automated CI/CD pipelines for web and mobile apps using Docker, Jenkins, and Fastlane, ensured strong test coverage with Pytest, Cypress, and Detox across key user flows.

Software Engineer

Microsoft, Redmond, WA - Jan 2015 – Dec 2017

-Developed and maintained modular UI components for the Azure Resource Manager (ARM) portal using TypeScript and AngularJS, improving resource provisioning workflows for enterprise users.

-Integrated with internal RESTful APIs to surface real-time telemetry, subscription usage, and service health data across Azure regions.

-Implemented secure single sign-on (SSO) and role-based access controls using OAuth 2.0 and Azure Active Directory to support enterprise tenant isolation and RBAC scenarios.

EDUCATION:

National University of Singapore

Bachelor of Science in Mathematics and Computer Science – Sep 2010 - June 2014

Skills:

Frontend: React.js, Next.js, Vue.js, Nuxt.js, Angular, Svelte, SvelteKit, Redux, Zustand, Recoil, React Query, TanStack Table, Tailwind CSS, Bootstrap, Material UI, Chakra UI, Ant Design, D3.js, Chart.js, Three.js, Framer Motion, GSAP, Storybook

Backend: Python, Django, Django REST Framework, FastAPI, Flask, GraphQL, REST API, Celery, SQLAlchemy, Alembic, Pydantic, WebSockets, Redis, RabbitMQ, Pytest

DevOps & Testing: Docker, Kubernetes, Jenkins, GitHub Actions, GitLab CI/CD, CircleCI, Terraform, Ansible, Prometheus, Grafana, Datadog, Pytest, Cypress, Playwright, Selenium, Postman, Swagger

Cloud & Other Tools: AWS (EC2, S3, Lambda), Azure, Google Cloud Platform, Firebase, Vercel, Netlify, MongoDB Atlas, Supabase, PlanetScale, Auth0, Keycloak, Sentry, Stripe, Twilio, Algolia, ElasticSearch, OpenAI API

Contact this candidate