You will get a production-ready AWS Lambda migrated from JavaScript to TypeScript
Project details
I will migrate your existing AWS Lambda from JavaScript to TypeScript while preserving its current business behavior.
The migration can include TypeScript configuration, typed request and response models, dependency adjustments, improved error handling, unit tests, linting, build validation, CI/CD compatibility, and technical documentation, depending on the selected package.
This service is suitable for teams that need to modernize legacy Lambda functions, prepare for newer Node.js runtimes, improve maintainability, or reduce risks caused by loosely typed code.
Before implementation, I review the function size, dependencies, AWS integrations, deployment process, and test coverage. If the Lambda exceeds the limits of the selected tier, I will explain the required scope adjustment before starting.
The service focuses on the Lambda application code. New cloud infrastructure, major business logic changes, complete application rewrites, and third-party service costs are not included unless agreed separately.
The migration can include TypeScript configuration, typed request and response models, dependency adjustments, improved error handling, unit tests, linting, build validation, CI/CD compatibility, and technical documentation, depending on the selected package.
This service is suitable for teams that need to modernize legacy Lambda functions, prepare for newer Node.js runtimes, improve maintainability, or reduce risks caused by loosely typed code.
Before implementation, I review the function size, dependencies, AWS integrations, deployment process, and test coverage. If the Lambda exceeds the limits of the selected tier, I will explain the required scope adjustment before starting.
The service focuses on the Lambda application code. New cloud infrastructure, major business logic changes, complete application rewrites, and third-party service costs are not included unless agreed separately.
Programming Languages
JavaScript, TypeScriptCoding Expertise
Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$180
|
Standard
$350
|
Advanced
$600
|
|---|---|---|---|
| Delivery Time | 4 days | 7 days | 10 days |
Number of Revisions | 1 | 2 | 3 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Optional add-ons
You can add these on the next page.
Additional Revision
+$40
Additional Lambda function
(+ 3 Days)
+$150
CI/CD pipeline adjustment
(+ 2 Days)
+$120
AWS deployment support
(+ 1 Day)
+$100Frequently asked questions
About Andres Mauricio
Backend Modernization Expert | AWS, TypeScript, Node.js & Java
Cali, Colombia - 6:46 am local time
I am a Systems Engineer with more than 10 years of experience in software development, technical analysis, application modernization, and production support.
My main areas of expertise include:
• AWS Lambda, API Gateway, Step Functions, DynamoDB, SQS, and Parameter Store
• Node.js and TypeScript backend development
• Java 21 and Spring Boot applications
• JavaScript-to-TypeScript migrations
• Serverless architecture and microservices
• REST API design and integration
• Legacy system analysis and reverse engineering
• CI/CD pipelines with Jenkins and GitHub Actions
• SonarQube, automated testing, code quality, and dependency upgrades
• Technical documentation, architecture diagrams, and modernization roadmaps
I can help you with projects such as:
• Fixing AWS Lambda, API Gateway, CORS, or deployment issues
• Migrating Node.js applications from JavaScript to TypeScript
• Reviewing and improving serverless architectures
• Modernizing legacy backend applications
• Diagnosing CI/CD, build, testing, and SonarQube failures
• Documenting undocumented systems and technical flows
• Designing modular Spring Boot backends
• Improving maintainability, reliability, and code quality
My approach is structured and transparent. I first analyze the current state, identify risks and dependencies, define a practical execution plan, and deliver documented, maintainable solutions.
I value clear communication, realistic commitments, clean code, and solutions that provide measurable technical value.
Steps for completing your project
After purchasing the project, send requirements so Andres Mauricio can start the project.
Delivery time starts when Andres Mauricio receives requirements from you.
Andres Mauricio works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements review
I review the Lambda source code, runtime, dependencies, integrations, tests, and deployment process.
Scope confirmation
I confirm the selected tier, technical scope, assumptions, risks, and required access.