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Senior Software Engineer with 10 years of experience delivering enterprise-grade software solutions in IT consulting. Deep expertise architecting AWS-native microservice stacks that blend React front ends with Python services built on Django and Flask, deployed through CI/CD pipelines. Led API and platform work integrating PostgreSQL, Redis, and serverless components for low-latency access across multiple client applications. Experienced in technical roadmapping, mentoring, and building automated testing and observability systems using CloudWatch and Prometheus in Agile teams focused on continuous delivery.…Senior Software Engineer with 10 years of experience delivering enterprise-grade software solutions in IT consulting. Deep expertise architecting AWS-native microservice stacks that blend React front ends with Python services built on Django and Flask, deployed through CI/CD pipelines. Led API and platform work integrating PostgreSQL, Redis, and serverless components for low-latency access across multiple client applications. Experienced in technical roadmapping, mentoring, and building automated testing and observability systems using CloudWatch and Prometheus in Agile teams focused on continuous delivery.

James Muehlner

Front-End Developer, Software Engineer, Web Developer, +6

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Senior Software Engineer with 10 years of experience delivering enterprise-grade software solutions in IT consulting. Deep expertise architecting AWS-native microservice stacks that blend React front ends with Python services built on Django and Flask, deployed through CI/CD pipelines. Led API and platform work integrating PostgreSQL, Redis, and serverless components for low-latency access across multiple client applications. Experienced in technical roadmapping, mentoring, and building automated testing and observability systems using CloudWatch and Prometheus in Agile teams focused on continuous delivery.…Senior Software Engineer with 10 years of experience delivering enterprise-grade software solutions in IT consulting. Deep expertise architecting AWS-native microservice stacks that blend React front ends with Python services built on Django and Flask, deployed through CI/CD pipelines. Led API and platform work integrating PostgreSQL, Redis, and serverless components for low-latency access across multiple client applications. Experienced in technical roadmapping, mentoring, and building automated testing and observability systems using CloudWatch and Prometheus in Agile teams focused on continuous delivery.

Available to hire

Senior Software Engineer with 10 years of experience delivering enterprise-grade software solutions in IT consulting. Deep expertise architecting AWS-native microservice stacks that blend React front ends with Python services built on Django and Flask, deployed through CI/CD pipelines.

Led API and platform work integrating PostgreSQL, Redis, and serverless components for low-latency access across multiple client applications. Experienced in technical roadmapping, mentoring, and building automated testing and observability systems using CloudWatch and Prometheus in Agile teams focused on continuous delivery.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Advanced

Javanese

Intermediate

Aragonese

Intermediate

Work Experience

Senior Software Engineer at Maisa AI

November 1, 2024 - Present

Scaled an AI-driven recommendation event-processing pipeline by containerizing Python workers with Docker and orchestrating on AWS EKS, replacing a monolith and achieving ~16,000 requests/day with lower latency. Introduced a company-wide full-stack technical roadmapping framework in Miro to map React front-end and Django back-end dependencies, improving sprint planning alignment and reducing rework. Led redesign of payments microservices by converting legacy Flask endpoints into type-safe TypeScript services on Kubernetes, defining OpenAPI contracts and improving delivery speed and onboarding for five junior engineers. Migrated static assets to AWS S3, reducing average page-load time by 37% and lowering operational costs. Overhauled CI/CD in Jenkins for a team of twelve, automating Docker builds and Helm deployments and cutting release cycles from two days to eight hours. Delivered client-facing workshop prototypes integrating React and Django, and improved data-access performance usin

Senior React Engineer at MAISA AI

November 1, 2024 - Present

Rebuilt an existing React web application using Next.js and Webpack, reducing load time by 24% and improving overall performance and user experience. Established a frontend development process across the team, partnering with design to standardize responsive design and UX practices. Defined technical requirements for migrating the React application to Next.js to ensure a smooth transition. Migrated the codebase to accelerate feature development, reduce bug-fix time, and improve code quality using ESLint. Overhauled a UI component library by refactoring 15 components to improve reusability and consistency. Scaled frontend infrastructure for increased traffic and worked closely with backend to support high availability across the e-commerce platform. Modernized architecture with modular design patterns, reducing latency by 200ms and improving UX, and reduced legacy technical debt by removing ~1200 lines of code. Introduced new coding standards using Prettier to improve readability, reduc

Software Engineer at Sprinter Health

February 1, 2022 - November 1, 2024

Implemented an organization-wide health-data ingestion system with Python, Django, and AWS EC2 to unify wearable-device streams into a real-time API serving ~1,200 clinicians. Improved CI/CD by configuring GitHub Actions with Docker builds and AWS EC2 runners, reducing deployment time by 22 minutes. Integrated a legacy patient-record API by replacing XML-over-HTTP with a GraphQL layer using Node.js and TypeScript, handling ~19,000 requests/day and improving front-end development velocity. Migrated three monolithic Django services to microservices on AWS EC2 using PostgreSQL and Redis caching, improving scalability and latency. Built a React/TypeScript interactive dashboard demo for personalized medicine recommendations to accelerate stakeholder approvals. Delivered a pytest-based automated unit-test suite for Flask APIs (1,200 test cases) with coverage thresholds to reduce defects and strengthen CI reliability.

React Engineer at Sprinter Health

February 1, 2022 - November 1, 2024

Integrated and enhanced a company-wide web application using React and Next.js to improve responsiveness and page load performance across the e-commerce platform. Built and tested UI components to improve overall application quality and customer experience. Helped transition the app from a monolithic architecture toward a microservices-based system using Next.js to improve scalability and reduce load time. Refactored 12 services to reduce duplication and improve maintainability, alongside implementing coding standards and best practices. Migrated the application to Next.js, supporting a timely release and adoption of Next.js features. Implemented responsive design and UX improvements using HTML, CSS, and JavaScript to increase engagement and reduce usability complaints, improving customer satisfaction.

Backend Engineer at Amazon

May 1, 2017 - January 1, 2022

Automated order-processing across the fulfillment estate by refactoring legacy Python scripts into Django endpoints, improving response latency and enabling real-time inventory updates while adhering to AWS security best practices. Optimized checkout microservice to sustain ~15K requests/min with sub-100 ms latency by refactoring PostgreSQL queries and adding Redis caching, reducing timeouts and boosting conversion. Built Flask/React TypeScript order-status endpoints handling ~23K requests/day with CloudWatch metrics and integration tests; standardized IAM-role authentication and introduced automated deployments via GitHub Actions. Enhanced observability by updating CloudWatch alarms and dashboards to reduce incident detection time. Improved testing frameworks with pytest and Docker for unit/integration suites, shortening CI feedback loops. Documented best practices in Confluence to foster consistency across services and align with Amazon security guidelines.

Frontend Engineer at Amazon

May 1, 2017 - January 1, 2022

Delivered frontend development across multiple teams, improving code quality and application performance using JavaScript and React. Modernized UI components by moving from outdated HTML to modern CSS (CSS Grid), improving load times and engagement. Shipped multiple rounds of responsive design updates to refine UX for the entire checkout flow, supporting better customer interaction and conversion. Automated testing for 10 UI components using jQuery and Jest to maintain reliable functionality and quality. Improved frontend workflow using Next.js to speed up migration and help teams focus on new features. Designed scalable frontend architecture for high-traffic e-commerce with an emphasis on UX, responsive design, and performance optimization.

Full Stack Engineer at Accenture

April 1, 2016 - April 1, 2017

Refactored a legacy Django monolith into a modular Python service architecture over six months, splitting into four independent services and reducing average request latency from ~210 ms to ~124 ms. Shipped a new React front end for a client portal with TypeScript and Redux, consuming a Flask-based REST API to enable real-time mission status updates. Built automated CI/CD pipelines using GitHub Actions and Jenkins for Node.js microservices deployed to AWS EC2, running unit and integration tests per commit and eliminating manual releases. Developed a PostgreSQL data-access layer using SQLAlchemy within Django with connection pooling and query caching, reducing query time by ~19%. Authored organization-wide API contract and deployment runbooks (Markdown ADRs) to streamline knowledge transfer across consulting streams. Refactored a stakeholder demo environment using Docker and AWS S3 static-site hosting for reproducible environments within ~10 minutes.

Junior Software Engineer at Accenture

April 1, 2016 - April 1, 2017

Developed a responsive web application from a basic layout over six months using JavaScript, React, and CSS, partnering with design to ensure consistent UI/UX. Maintained high-quality UI components in the payments platform through regular code reviews and updates to HTML/CSS, using jQuery for DOM manipulation. Delivered a migrated e-commerce platform to Next.js, using React for the frontend and supporting the migration team by addressing layout issues and improving the UI/UX experience.