Senior Full-Stack Engineer (Cloud-Native)
Resume:
Josue Oswaldo Ledezma Gonzalez
*****.**********@*******.***
Jalisco, Mexico
SUMMARY
Senior Full Stack Software Engineer with over 10 years of experience architecting and delivering scalable, cloud-native financial technology solutions. Proven expertise in leading end-to-end development of modern web applications using Vue.js, Angular, .NET Core, C#, and Python. Demonstrated success in designing high-performance RESTful APIs, optimizing SQL Server databases, and leveraging AWS and Docker for robust containerized deployments. Adept at mentoring engineering teams, driving Agile delivery, and translating complex business requirements into reliable, cost-efficient, and maintainable systems. TECHNICAL SKILLS
C# .NET Core Python Vue.js Vue 3 Angular TypeScript JavaScript RESTful APIs SQL Server PostgreSQL DynamoDB AWS Docker CI/CD GitHub Actions Terraform Jest Playwright Vite Webpack Vuex Redux Agile Scrum Mentoring Performance Optimization Unit Testing Integration Testing End-to-End Testing Containerization Serverless Cloud-Native Architecture API Design Database Optimization Microservices Git Linux Nginx Entity Framework Dapper Redis SQS S3 EC2 Lambda API Gateway PROFESSIONAL EXPERIENCE
Senior Software Engineer Jan 2025 - Mar 2026
Acentra Health
• Architected and developed a scalable, cloud-native patient data integration platform using .NET Core and Python, migrating monolithic legacy services to containerized microservices deployed on AWS ECS with Fargate, which significantly improved system modularity and reduced deployment complexity for the healthcare analytics team.
• Engineered a dynamic, responsive front-end interface for the platform using Vue 3 and TypeScript, incorporating Vuex for complex state management across multiple data visualization dashboards, directly enabling healthcare providers to access real-time patient metrics and improve clinical decision-making.
• Designed and implemented a suite of secure RESTful and open APIs for external health system integrations, utilizing AWS API Gateway and Lambda for serverless request handling, and enforced strict authentication and data encryption to comply with HIPAA and other healthcare data privacy regulations.
• Refactored critical data access layers using Entity Framework Core with SQL Server, rewriting complex T-SQL stored procedures and optimizing query execution plans, which reduced average API response times by over 40% and improved overall data retrieval efficiency for high-volume transactional workloads.
• Led the containerization strategy for all backend services using Docker and orchestrated their deployment through Amazon ECS, implementing robust CI/CD pipelines with GitHub Actions to automate testing, security scanning, and zero-downtime rolling updates across development and production environments.
• Collaborated with product owners and clinical stakeholders to translate intricate compliance and user experience requirements into technical specifications, delivering iterative feature releases in a fast-paced Agile environment, and consistently ensuring alignment between business goals and technical execution.
• Championed the adoption of Playwright and Jest for comprehensive end-to-end and unit testing, establishing a quality assurance culture that increased test coverage to over 85%, significantly reducing production defects and ensuring the reliability of critical patient data workflows.
• Mentored a team of five junior and mid-level developers, conducting thorough code reviews to enforce architectural best practices, design patterns, and SOLID principles, which elevated the overall technical proficiency of the team and accelerated the delivery of complex epics.
• Spearheaded the migration of on-premises legacy data pipelines to a serverless architecture leveraging AWS S3, SQS, and Lambda, designing event-driven data processing workflows that enhanced scalability, reduced operational overhead, and enabled near-real-time data synchronization across disparate health systems. Senior Software Engineer May 2021 - Jan 2025
Augmedix
• Led the full-stack re-architecture of a medical documentation platform, transitioning a legacy AngularJS application to a modern, component-based Angular front-end, and rebuilding the backend services with .NET Core to support a rapidly growing user base of healthcare professionals.
• Developed a high-performance RESTful API layer in C# and Python to handle concurrent, real-time data processing from medical dictation services, utilizing asynchronous programming patterns and efficient data serialization to minimize latency and ensure seamless user experiences.
• Optimized database interactions for the platform's core transaction engine, designing schemas and indexes in SQL Server and PostgreSQL, and implementing caching strategies with Redis to reduce database load and improve read throughput for frequently accessed patient data.
• Containerized the entire application stack using Docker and managed multi-container deployments using Docker Compose, ensuring consistent development environments and simplifying the deployment process across various stages, from local development to AWS staging and production.
• Architected and implemented event-driven workflows using AWS services such as SNS and SQS, decoupling critical documentation processing tasks from the main API, which improved system fault tolerance and enabled asynchronous handling of long-running background operations without blocking user interactions.
• Collaborated closely with product and design teams to refine UI/UX requirements, implementing responsive, accessible front-end features with Angular and TypeScript, and integrating complex state management solutions to deliver a fluid and intuitive experience for medical scribes.
• Implemented and maintained robust CI/CD pipelines using GitHub Actions and Terraform, automating infrastructure provisioning and application deployments to AWS, which reduced manual configuration errors and accelerated the release cycle for new features and critical bug fixes.
• Improved application performance by identifying and resolving front-end bottlenecks, including optimizing bundle sizes with Webpack, implementing lazy loading modules, and fine-tuning change detection strategies within the Angular framework to enhance overall responsiveness on low-bandwidth networks.
• Served as a technical lead for an Agile Scrum team, facilitating sprint planning, daily stand-ups, and retrospectives, while providing technical guidance and mentorship to junior engineers, fostering a culture of collaborative problem-solving and ensuring the timely delivery of complex, cross-functional initiatives. Senior Software Engineer Nov 2018 - Mar 2021
Chegg
• Designed and developed scalable, high-traffic educational web applications using Vue.js for the front-end and .NET Core for backend microservices, serving millions of students and supporting their online learning and homework help needs with high availability and low latency.
• Built and maintained robust RESTful APIs to integrate with internal and external educational content providers, implementing advanced caching mechanisms and data pagination strategies to optimize data delivery and reduce server load during peak usage periods.
• Migrated key monolithic legacy systems to a cloud-native architecture on AWS, refactoring existing C# codebases into decoupled, containerized services deployed on Amazon ECS, which increased deployment velocity and improved resource utilization across the engineering organization.
• Revamped the platform's data access layer by optimizing SQL Server queries and stored procedures, and introducing a repository pattern with Dapper for high-performance data retrieval, which successfully reduced database contention and improved overall transaction throughput.
• Collaborated on the development of a feature-rich, reactive dashboard using Vue.js and Vuex, empowering educational institutions with real-time analytics on student engagement and performance, and implemented custom visualizations to present complex data sets in an accessible manner.
• Led a team initiative to adopt modern front-end build tooling, migrating from Webpack to Vite for faster development builds and hot module replacement, significantly improving developer productivity and reducing the time to build and test new features within the local development environment.
• Implemented comprehensive automated testing strategies using Jest for unit testing and Playwright for end-to-end browser automation, creating a robust test suite that caught regressions early and maintained high code quality standards across multiple releases and feature branches.
• Championed a collaborative engineering culture by instituting rigorous code review processes, documenting architectur- al decisions, and mentoring new team members on the nuances of the tech stack, fostering a cohesive team environment that consistently delivered high-quality software solutions.
• Played a key role in capacity planning and performance tuning for the application, conducting load testing, analyzing performance bottlenecks, and fine-tuning AWS resources such as RDS instances and EC2 auto-scaling groups, to ensure seamless scalability during high-traffic academic periods. Full Stack Engineer Feb 2016 - Sep 2018
Tool Watch Co
• Spearheaded the complete redesign and modernization of a legacy e-commerce platform, building a responsive and feature-rich single-page application with Angular and TypeScript, and developing a resilient, RESTful backend with C# and .NET Framework to handle inventory management and order processing.
• Integrated the platform with multiple external payment gateways and shipping APIs, designing secure and reliable API integrations to streamline checkout processes, reducing cart abandonment, and enhancing the overall customer purchasing experience for a global user base.
• Designed and implemented a new SQL Server database schema to support a complex product catalog, customer profiles, and transaction history, optimizing indexes and query patterns to ensure efficient data retrieval and fast page load times for users across the platform.
• Containerized the full-stack application using Docker, creating reproducible development environments and simplifying the deployment process to staging and production servers, which drastically reduced environment-related bugs and improved collaboration between development and operations teams.
• Architected and deployed a continuous integration and delivery pipeline using Jenkins and AWS, automating the build, test, and deployment process for both front-end and back-end applications, which minimized manual intervention and accelerated the time-to-market for new features and critical bug fixes.
• Worked directly with business stakeholders to gather requirements and translate them into technical specifications, leading the effort to implement a dynamic product filtering and search system using Elasticsearch, which improved product discoverability and customer satisfaction.
• Optimized the front-end performance of the Angular application by implementing lazy loading, AOT compilation, and efficient change detection strategies, significantly reducing initial load times and enhancing the user experience for customers accessing the site on various devices and network conditions.
• Enhanced system security and reliability by implementing robust authentication and authorization mechanisms using OAuth2 and JWT, and by conducting thorough code reviews to identify and remediate potential security vulnerabilities, ensuring the protection of sensitive customer and financial data.
• Collaborated with the design team to build a consistent UI component library using Angular, promoting code reusability and design consistency across the application, while also mentoring a junior developer on best practices for front-end development and API consumption.
EDUCATION
Bachelor’s degree in Computer Science Feb/2013 ~ Dec/2015 University of Melbourne
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