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I’m a Python full-stack developer with 7 years of experience building enterprise-grade web applications across banking, healthcare, and business process management. I design and develop scalable microservices using Python (FastAPI/Flask), SQLAlchemy, REST APIs, and secure authentication/authorization with OAuth2 and JWT, while also delivering responsive, interactive front ends with React and Angular. I’m hands-on with event-driven architecture using Apache Kafka, relational and NoSQL databases (PostgreSQL, MySQL, MongoDB), and cloud-native deployment on AWS (EC2, ECS, RDS, S3, IAM, CloudWatch). I also set up reliable CI/CD pipelines with Jenkins and GitHub and write unit/integration tests with PyTest and unittest to ensure quality, performance, and maintainability in production systems.…I’m a Python full-stack developer with 7 years of experience building enterprise-grade web applications across banking, healthcare, and business process management. I design and develop scalable microservices using Python (FastAPI/Flask), SQLAlchemy, REST APIs, and secure authentication/authorization with OAuth2 and JWT, while also delivering responsive, interactive front ends with React and Angular. I’m hands-on with event-driven architecture using Apache Kafka, relational and NoSQL databases (PostgreSQL, MySQL, MongoDB), and cloud-native deployment on AWS (EC2, ECS, RDS, S3, IAM, CloudWatch). I also set up reliable CI/CD pipelines with Jenkins and GitHub and write unit/integration tests with PyTest and unittest to ensure quality, performance, and maintainability in production systems.

Karthik Madhavaram

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

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I’m a Python full-stack developer with 7 years of experience building enterprise-grade web applications across banking, healthcare, and business process management. I design and develop scalable microservices using Python (FastAPI/Flask), SQLAlchemy, REST APIs, and secure authentication/authorization with OAuth2 and JWT, while also delivering responsive, interactive front ends with React and Angular. I’m hands-on with event-driven architecture using Apache Kafka, relational and NoSQL databases (PostgreSQL, MySQL, MongoDB), and cloud-native deployment on AWS (EC2, ECS, RDS, S3, IAM, CloudWatch). I also set up reliable CI/CD pipelines with Jenkins and GitHub and write unit/integration tests with PyTest and unittest to ensure quality, performance, and maintainability in production systems.…I’m a Python full-stack developer with 7 years of experience building enterprise-grade web applications across banking, healthcare, and business process management. I design and develop scalable microservices using Python (FastAPI/Flask), SQLAlchemy, REST APIs, and secure authentication/authorization with OAuth2 and JWT, while also delivering responsive, interactive front ends with React and Angular. I’m hands-on with event-driven architecture using Apache Kafka, relational and NoSQL databases (PostgreSQL, MySQL, MongoDB), and cloud-native deployment on AWS (EC2, ECS, RDS, S3, IAM, CloudWatch). I also set up reliable CI/CD pipelines with Jenkins and GitHub and write unit/integration tests with PyTest and unittest to ensure quality, performance, and maintainability in production systems.

Available to hire

I’m a Python full-stack developer with 7 years of experience building enterprise-grade web applications across banking, healthcare, and business process management. I design and develop scalable microservices using Python (FastAPI/Flask), SQLAlchemy, REST APIs, and secure authentication/authorization with OAuth2 and JWT, while also delivering responsive, interactive front ends with React and Angular.

I’m hands-on with event-driven architecture using Apache Kafka, relational and NoSQL databases (PostgreSQL, MySQL, MongoDB), and cloud-native deployment on AWS (EC2, ECS, RDS, S3, IAM, CloudWatch). I also set up reliable CI/CD pipelines with Jenkins and GitHub and write unit/integration tests with PyTest and unittest to ensure quality, performance, and maintainability in production systems.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Work Experience

Python Full Stack Developer at Goldman Sachs

July 1, 2024 - Present

Built a cloud-native Global Trade Processing & Risk Analytics Platform enabling traders and risk analysts to execute trades, monitor portfolios, perform real-time risk assessments, and generate regulatory reports. Developed scalable backend microservices with Python (FastAPI), SQLAlchemy, and REST APIs for trade processing, portfolio management, and risk analysis. Implemented secure APIs using OAuth2, JWT, and RBAC, and integrated third-party financial services via REST. Used Apache Kafka for asynchronous trade event processing, market data handling, and transaction notifications. Designed and optimized PostgreSQL schemas and queries for high-volume workloads, and used MongoDB for logs, audit records, and semi-structured data. Built responsive UIs with React, Redux, and React Hooks. Containerized services with Docker and deployed on AWS (EC2, ECS, RDS, S3) with monitoring via CloudWatch. Automated build/test/deploy workflows using Jenkins and GitHub CI/CD, and followed TDD with PyTest

Python Full Stack Developer at Cardinal Health

October 1, 2022 - June 1, 2024

Developed a cloud-native Pharmacy Supply Chain & Distribution Management Platform for pharmaceutical inventory management, prescription fulfillment, supplier collaboration, and warehouse operations across healthcare facilities. Created backend microservices using Python (FastAPI), SQLAlchemy, and Pydantic to support inventory, prescription processing, procurement, and warehouse workflows. Delivered responsive front ends with React and supporting UI libraries (Material UI) for pharmacists, warehouse operators, and supply chain managers. Implemented secure REST APIs for orders, inventory tracking, shipment processing, and operational reporting. Used Apache Kafka to synchronize inventory and track shipments in real time across distributed services. Designed and tuned PostgreSQL schemas and SQL for high-volume transactions; used MongoDB for audit logs and operational/reporting data. Secured applications with OAuth2, JWT, and RBAC, integrated external systems via REST, containerized with Do

Python Full Stack Developer at German American Bank

June 1, 2021 - September 1, 2022

Worked on a cloud-native Digital Banking & Loan Origination Platform that allowed customers to manage accounts, apply for loans, monitor transactions, and perform digital banking activities via a unified web experience. Built backend microservices with Python (FastAPI), SQLAlchemy, and Pydantic for onboarding, account management, loan origination, and payment processing. Developed responsive UIs using React, Redux, and Material UI for intuitive customer workflows. Designed secure REST APIs for registration, account services, loan applications, transfers, and transaction history, and implemented OAuth2/JWT/RBAC to protect sensitive financial data. Used Apache Kafka for asynchronous communication across microservices for transaction processing, loan status updates, and notifications. Optimized PostgreSQL schemas, SQL queries, indexing, and stored procedures for performance; used MongoDB for customer activity logs and audit/metadata. Integrated third-party payment and credit verification

Python Developer at Mayo Clinic

January 1, 2020 - May 1, 2021

Developed a cloud-based Clinical Care & Patient Management System to streamline patient registration, appointment scheduling, EHR, physician management, laboratory services, and clinical reporting. Implemented backend microservices using Python (FastAPI), SQLAlchemy, and Pydantic for patient registration, scheduling, EHR, and physician management. Built responsive front ends with Angular 11, TypeScript, Angular Material, and RxJS for healthcare provider and administrative user workflows. Designed secure RESTful APIs to integrate patient records, lab services, appointment scheduling, billing, and insurance verification. Implemented Apache Kafka to handle asynchronous events such as appointment notifications and lab updates across microservices. Managed clinical data with PostgreSQL and integrated MongoDB for clinical documents, audit logs, and application metadata. Secured integrations with OAuth2, JWT, and RBAC. Containerized and deployed services on AWS (EC2, ECS, RDS, S3, IAM, CloudW

Python Developer at eClerx

August 1, 2018 - December 1, 2019

Built an enterprise Business Process Automation & Analytics Platform to streamline client onboarding, business process management, operational reporting, and analytics. Developed backend services using Python (FastAPI), SQLAlchemy, and Pydantic to automate onboarding workflows and reporting modules. Implemented interactive web dashboards using Angular 8, TypeScript, Angular Material, and RxJS. Designed secure RESTful APIs for workflow management, customer onboarding, document processing, and reporting. Implemented Apache Kafka for real-time asynchronous communication between workflow services and process events. Designed and maintained PostgreSQL schemas with optimized SQL queries and indexes; used MongoDB for workflow logs, document metadata, and audit records. Supported AWS deployments (EC2, RDS, S3, IAM, CloudWatch) and containerized services with Docker. Participated in CI/CD implementation with Jenkins and GitHub and wrote tests using PyTest/unittest and front-end testing with Jas