I'm an experienced Sr. Software Engineer and Scrum Master with 15 years of delivering software across web, cloud, and mobile ecosystems. I enjoy hands-on development and solving complex problems with Angular, React, Node.js, Django, JavaScript, AWS, TypeScript and GraphQL. I thrive in collaborative teams and strive for quality through clean code, solid architecture, and automated testing. I bring strong object-oriented design, MVC patterns, and guidelines for system configuration, plus experience across platforms, services, networking, security, and customer training. I'm seeking a hands-on development role where I can contribute technically while mentoring teams and aligning technology with business goals.

Lorenzo Appolinaire

I'm an experienced Sr. Software Engineer and Scrum Master with 15 years of delivering software across web, cloud, and mobile ecosystems. I enjoy hands-on development and solving complex problems with Angular, React, Node.js, Django, JavaScript, AWS, TypeScript and GraphQL. I thrive in collaborative teams and strive for quality through clean code, solid architecture, and automated testing. I bring strong object-oriented design, MVC patterns, and guidelines for system configuration, plus experience across platforms, services, networking, security, and customer training. I'm seeking a hands-on development role where I can contribute technically while mentoring teams and aligning technology with business goals.

Available to hire

I’m an experienced Sr. Software Engineer and Scrum Master with 15 years of delivering software across web, cloud, and mobile ecosystems. I enjoy hands-on development and solving complex problems with Angular, React, Node.js, Django, JavaScript, AWS, TypeScript and GraphQL. I thrive in collaborative teams and strive for quality through clean code, solid architecture, and automated testing.

I bring strong object-oriented design, MVC patterns, and guidelines for system configuration, plus experience across platforms, services, networking, security, and customer training. I’m seeking a hands-on development role where I can contribute technically while mentoring teams and aligning technology with business goals.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
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Language

English
Fluent

Work Experience

Sr. Full Stack Software Engineer at Apple Inc.
May 1, 2022 - Present
Designing UI/UX with Adobe DC and Figma, writing clean and maintainable code using .NET, JavaScript, SQL, and C#. Developing and optimizing web app interfaces using React, Angular, and NextJs. Collaborating in development teams for design, testing and deployment. Utilizing AWS services including Lambda, EC2, and CloudFormation. Implementing microservices architectures with MongoDB, RESTful and GraphQL APIs. Building front-end applications with React, state management, and back-end apps using Nest.js. Managing infrastructure as code using Terraform and Terragrunt.
Sr. Full stack Developer at CACI - Department of Homeland Security
May 1, 2022 - July 17, 2025
Developed frontend Angular applications using NgRx, designed and maintained large distributed Angular and Spring boot Java-based microservices with REST APIs. Participated in AWS cloud infrastructure automation and Azure Web Application project development using ASP.NET and GitHub. Built serverless APIs with AWS Lambda, implemented event-driven microservices with Kafka and RabbitMQ. Maintained MongoDB clusters, collaborated on agile teams utilizing tools like Git, Jira, and Confluence.
Software Engineer III at Google Inc.
April 1, 2021 - July 17, 2025
Conducted code reviews and developed UI software applications using Angular, React, and TypeScript. Managed frontend testing using React Testing Library and Jest. Maintained and enhanced UI and Web Services with Angular 12, Node.js, REST APIs and AI/ML integrations. Proficient with React tools such as webpack, Next.js, and React Hook Form.
Software Engineer at Virgin Health Care Services
November 1, 2017 - July 17, 2025
Developed client-side JavaScript, HTML, and CSS for complex layouts. Added new features to existing software in Agile/Scrum environments. Specialized in ReactJS, TypeScript, Redux with Jest testing. Worked with AWS, Postgres, Spring Boot, Rest API, and Git. Participated in scrum activities and collaborated with customer success teams for feature analysis and bug reporting.
Full Stack Software Engineer at Radio Shack
October 1, 2010 - July 17, 2025
Worked in .NET enterprise environment, developed web technologies including CSS3, JavaScript, HTML5, and jQuery. Designed and implemented APIs using C#, C++, and Go. Developed Oracle APEX applications and PL/SQL procedures. Maintained business and client-facing applications using ASP.NET stack.
Sr. Full Stack Software Engineer at Apple Inc.
May 1, 2022 - Present
Responsible for designing and developing front-end UI/UX using Adobe DC, Figma, and other design tools. Wrote clean, maintainable code with .NET, JavaScript, SQL, and C#. Worked with .Net Core/Web API, Angular, React with Typescript and RxJS for optimizing web app interfaces. Collaborated with teams for software design, development, and testing. Experience with automated testing achieving near 100% coverage. Managed AWS infrastructure components including Lambda, EC2, ECS, and more. Advocated pipeline automation and security with tools like Docker, Kubernetes, and Jenkins. Led scalable microservices development using MongoDB and developed RESTful and GraphQL APIs. Skilled in infrastructure as code with Terraform and Terragrunt. Built robust front-end applications with React, managing state with Redux and Context API, and back-end with Nest.js leveraging TypeScript.
Sr. Full stack Developer at CACI - Department of Homeland Security
May 1, 2022 - July 23, 2025
Developed frontend applications with Angular leveraging NgRx. Independently and collaboratively worked within agile teams using scrum. Designed and maintained large distributed Angular and Spring Boot Java applications and microservices with REST APIs. Supported AWS cloud infrastructure automation and Infrastructure-as-Code initiatives. Created Azure web projects, deployed ASP.NET web apps using Visual Studio and GitHub. Built serverless APIs with AWS Lambda using Python and Node.js. Worked with various technologies including Kubernetes, Elasticsearch, Kafka, RabbitMQ, and MongoDB to ensure high performance and availability of microservices.
Software Engineer III at Google Inc.
April 1, 2021 - July 23, 2025
Performed team code reviews and maintained high software quality. Developed frontend UIs using Angular, React, TypeScript, HTML5, Node.js, consuming REST/GraphQL APIs. Experience with CI/CD systems and log management with Splunk. Conducted cross-browser testing and applied best practices for software development and maintenance. Used React Testing Library and Jest for frontend testing. Collaborated on wireframes and mockups leading to intuitive user experiences. Integrated AI/ML components into web services.
Software Engineer at Virgin Health Care Services
November 1, 2017 - July 23, 2025
Developed client-side JavaScript applications with a strong focus on ReactJS, Angular, TypeScript, and JavaScript. Collaborated in Agile/Scrum teams to design features, estimate efforts, and participate in code reviews and pair programming. Worked on building complex web layouts using HTML5 and CSS. Integrated REST APIs and managed databases including Postgres. Utilized testing frameworks such as Jest and worked with tools like Git, Jira, Confluence, and Postman to ensure quality and delivery.
Full Stack Software Engineer at Radio Shack
October 1, 2010 - July 23, 2025
Worked in a .NET enterprise environment developing web technologies such as CSS3, JavaScript, HTML5, and jQuery. Designed and implemented APIs using C#, C++, and other object-oriented languages. Developed Oracle APEX applications with advanced PL/SQL and database skills. Managed application logging, monitoring, and alerting. Developed and maintained business and client-facing applications using ASP.NET Core and Visual Studio.
Sr. Full Stack Software Engineer at Apple Inc.
May 1, 2022 - Present
Designed and developed scalable front-end and back-end applications using .NET Core, Angular, React, TypeScript, and RxJS. Collaborated with the team on software design, testing, and optimization. Leveraged AWS infrastructure components including Lambda, EC2, ECS, and more. Developed microservices architectures using MongoDB, RESTful and GraphQL APIs, optimizing database queries and indexes for performance. Managed infrastructure as code with Terraform and Terragrunt. Used Azure services like Service Bus and Logic Apps, and automated build pipelines with Docker, Kubernetes, Jenkins, and related DevOps tools.
Sr. Full stack Developer at CACI - Department of Homeland Security
May 1, 2022 - July 23, 2025
Developed front-end Angular applications with NgRx and back-end Java Spring Boot microservices with REST APIs. Participated in Agile ceremonies and contributed independently and in teams. Automated cloud infrastructure and deployed Azure Web Apps and serverless AWS Lambda APIs using Python and Node.js. Implemented event-driven microservices using Kafka and RabbitMQ. Managed MongoDB clusters ensuring high availability. Collaborated across teams using Git, Jira, and Confluence to deliver solutions meeting customer needs.
Software Engineer III at Google Inc.
April 1, 2021 - July 23, 2025
Performed code reviews and development using Angular, React, and Node.js. Built and maintained UI applications with Angular 12 and TypeScript, including cross-browser testing and using testing tools like React Testing Library and Jest. Integrated REST and GraphQL APIs, worked with AI/ML services, and used tools like Splunk and Jenkins for log management and CI/CD.
Software Engineer at Virgin Health Care Services
November 1, 2017 - July 23, 2025
Developed front-end JavaScript applications using ReactJS, Angular, and TypeScript with Redux and testing frameworks like Jest. Built complex web layouts and collaborated within Agile teams. Provided expertise in JavaScript, HTML/CSS, AWS, Spring Boot, Postgres, REST APIs, and Git. Engaged in scrum processes, customer analysis, peer reviews, and pair programming.
Full Stack Software Engineer at Radio Shack
October 1, 2010 - July 23, 2025
Worked primarily in a .NET enterprise environment developing web applications using ASP.NET Core, C#, JavaScript, HTML5, CSS3, and jQuery. Designed and implemented APIs, developed database-driven applications using Oracle and PL/SQL, and handled application logging and monitoring.
Sr. Full Stack Software Engineer at Apple Inc.
May 1, 2022 - Present
Responsible for UI/UX design using Adobe DC and Figma, developing clean and maintainable code using .NET, JavaScript, SQL, and C#. Developed and optimized web applications using .NET Core/Web API, Angular, React with TypeScript, and RxJS. Collaborated with development teams to design and test software, participated in daily stand-ups, and worked extensively with AWS and Azure cloud infrastructure. Designed scalable microservices architecture using MongoDB, developed RESTful and GraphQL APIs, optimized database performance, and managed infrastructure as code using Terraform and Terragrunt. Experienced in front-end development using React with advanced state management and TypeScript for high-quality, maintainable software.
Sr. Full stack Developer at CACI - Department of Homeland Security
May 1, 2022 - August 2, 2025
Developed frontend applications using Angular with NgRx, implemented large distributed Java-based applications and microservices with REST APIs, and participated in Agile ceremonies. Led service automation design in AWS cloud with Infrastructure-as-Code. Created Azure Web Application projects using Visual Studio, GitHub, and Azure Resource Manager. Built serverless APIs with AWS Lambda in Python and NodeJS. Utilized technologies including NodeJS, Git, Jira, Confluence, AWS, Linux/Unix, Python, Elastic Search, and Kubernetes. Implemented event-driven microservices with Kafka and RabbitMQ, monitored MongoDB clusters for high availability, and collaborated using Git, Slack, Teams, Jira, and Confluence.
Software Engineer III at Google Inc.
April 1, 2021 - August 2, 2025
Performed code reviews and provided feedback, used Splunk for log management, and worked with CI/CD systems. Designed and built frontend applications using Adobe DC, VSCode, Angular, cross-browser testing, Nessus, Google API, Elasticsearch, and GraphQL. Developed and maintained UI and Web Services using Angular 12, TypeScript, HTML5, Node.js, REST, JSON, and AI/ML technologies while consuming REST APIs. Utilized React Testing Library and Jest for front-end testing and used popular React tools such as webpack, Next.js, and React Hook Form.
Software Engineer at Virgin Health Care Services
November 1, 2017 - August 2, 2025
Developed client-side JavaScript applications, built complex layouts with HTML and CSS, and added new features to software. Worked in Agile/Scrum teams, providing expertise in JavaScript, HTML/CSS, ReactJS, and Typescript with testing frameworks like Jest. Collaborated with Customer Success on feature requests and bug analysis. Participated in scrum activities including story writing, planning, and retrospectives. Engaged in peer code reviews and pair programming to foster knowledge sharing.
Full Stack Software Engineer at Radio Shack
October 1, 2010 - August 2, 2025
Worked in a .NET enterprise environment using web technologies including CSS3, JavaScript, HTML5, and jQuery. Designed and implemented APIs and developed Oracle APEX applications with PL/SQL. Managed application logging, monitoring, and alerting. Developed ASP.NET Core applications using Visual Studio. Analyzed, designed, coded, debugged, tested, documented, and maintained business and client-facing applications.
Sr. Full Stack Software Engineer at Apple Inc.
May 1, 2022 - Present
Lead full-stack development across UI/UX, backend services, and API layers using .NET, Angular, React (TypeScript), and RxJS. Designed and optimized web interfaces with Next.js and React, implemented REST/GraphQL APIs, and drove cloud-oriented initiatives using AWS and Azure. Established automated testing practices and contributed to architecture and deployment pipelines.
Sr. Full Stack Developer at CACI - Department of Homeland Security
May 1, 2022 - October 23, 2025
Develop frontend Angular applications (NgRx) and large distributed Java/Spring Boot microservices. Promote cloud automation with IaC, build serverless APIs using AWS Lambda, and manage MongoDB clusters for high availability.
Software Engineer III at Google Inc.
April 1, 2021 - October 23, 2025
Perform team code reviews, design and implement UI features with Angular and VS Code, debug and test software, and contribute to backend services and data-oriented features. Built and maintained REST/GraphQL APIs and front-end components with a focus on performance and reliability.
Software Engineer at Virgin Health Care Services
November 1, 2017 - October 23, 2025
Develop frontend and backend solutions using React, TypeScript, JavaScript, and Python. Build scalable web interfaces and RESTful services, leverage AWS/Azure for hosting and operations, and participate in Agile/Scrum practices.
Full Stack Software Engineer at Radio Shack
October 1, 2010 - October 23, 2025
Work in a .NET enterprise environment including API development, C#, SQL Server, and web technologies. Design robust APIs, implement UI components with HTML/CSS/JavaScript, and contribute to logging, monitoring, and performance improvements.
Sr. Full Stack Developer at CACI - Department of Homeland Security
April 1, 2021 - May 1, 2022
Led frontend Angular development with NgRx; designed and implemented large distributed Angular and Spring Boot microservices with REST APIs. Participated in cloud automation toward IaC in AWS and Azure, including serverless API development with Python/Node.js. Built and maintained Azure Web Applications and ASP.NET Web Apps; worked with Node.js, Git, Jira/Confluence, AWS, Linux, Python, Elasticsearch, and Kubernetes. Implemented event-driven microservices using Kafka/RabbitMQ and monitored MongoDB clusters for high availability and performance.
Software Engineer III at Google Inc.
November 1, 2017 - April 1, 2021
Performed team code reviews (Merge Requests) and contributed to UI and frontend/backend development. Built UI with Adobe DC, VSCode, Angular, and Cross Browser Testing; used Jest for testing. Worked on frontend/backend stacks with REST and GraphQL APIs, and supported documentation and maintenance in an Agile/Scrum environment.
Software Engineer at Virgin Health Care Services
October 1, 2010 - November 1, 2017
Developed frontend and backend components using React/TypeScript, Redux, NgRx, and AWS; implemented localization APIs and Azure Web Apps. Built server-side components using JavaScript/Python and contributed to microservices architecture and relational databases (SQL Server, PostgreSQL). Participated in Scrum ceremonies and collaborated with Customer Success to address feature requests.
Full Stack Software Engineer at Radio Shack
June 1, 2008 - October 1, 2010
Worked in a .NET enterprise environment designing and implementing APIs using C#, .NET, and SQL. Built Oracle APE applications with advanced PL/SQL and database skills; developed, tested, and maintained business applications in Agile/Scrum settings. Implemented logging/monitoring and worked with HTML5, JavaScript, CSS, and REST/JSON; collaborated with product and engineering teams using Git, Jira, and Confluence.

Education

Bachelor of Computer Science at University of Phoenix
January 1, 2015 - December 31, 2015
Bachelor of Computer Science at University of Phoenix
January 1, 2015 - December 31, 2015
Bachelor of Computer Science at University of Phoenix
January 1, 2015 - December 31, 2015
Bachelor of Computer Science at University of Phoenix
January 1, 2015 - December 31, 2015
Bachelor of Computer Science at University of Phoenix
January 11, 2030 - January 1, 2015
Bachelor of Computer Science at University of Phoenix
January 11, 2030 - January 1, 2015

Qualifications

CompTIA A+ Certificate
January 11, 2030 - December 31, 2024
Certified Scrum Master HPSM II
January 11, 2030 - December 31, 2024
Certified AWS DevOps Professional
January 11, 2030 - December 31, 2023
Certified Information Systems Auditor
January 11, 2030 - December 31, 2024
Certified in Risk and Information Systems Control
January 11, 2030 - December 31, 2024
CompTIA A+ Certificate
January 1, 2023 - December 31, 2024
Certified Scrum Master HPSM II
January 1, 2023 - December 31, 2024
Certified AWS DevOps Professional
January 1, 2022 - December 31, 2023
Certified Information Systems Auditor
January 1, 2023 - December 31, 2024
Certified in Risk and Information Systems Control
January 1, 2023 - December 31, 2024
CompTIA A+ Certificate
January 1, 2023 - December 31, 2024
Certified Scrum Master HPSM II
January 1, 2023 - December 31, 2024
Certified AWS DevOps Professional
January 1, 2022 - December 31, 2023
Certified Information Systems Auditor
January 1, 2023 - December 31, 2024
Certified in Risk and Information Systems Control
January 1, 2023 - December 31, 2024
CompTIA A+ Certificate
January 1, 2024 - December 31, 2024
Certified Scrum Master HPSM II
January 1, 2024 - December 31, 2024
Certified AWS DevOps Professional
January 1, 2023 - December 31, 2023
Certified Information Systems Auditor
January 1, 2024 - December 31, 2024
Certified in Risk and Information Systems Control
January 1, 2024 - December 31, 2024
Security Clearance: Secret
January 11, 2030 - October 23, 2025
CompTIA A+ Certificate
January 11, 2030 - October 23, 2025
Certified Scrum Master (CSM)
January 11, 2030 - October 23, 2025
Certified AWS DevOps Professional
January 11, 2030 - October 23, 2025
Certified Information Systems Auditor (CISA)
January 11, 2030 - October 23, 2025
Certified in Risk and Information Systems Control (CRISC)
January 11, 2030 - October 23, 2025
CompTIA A+ Certificate
January 11, 2030 - January 1, 2024
Certified Scrum Master HPSM II
January 11, 2030 - January 1, 2024
Certified AWS DevOps Professional
January 11, 2030 - January 1, 2023
Certified Information Systems Auditor
January 11, 2030 - January 1, 2024
Certified in Risk and Information Systems Control
January 11, 2030 - January 1, 2024

Industry Experience

Software & Internet, Government, Healthcare, Professional Services, Computers & Electronics, Media & Entertainment

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
See more