AWS Lambda consulting in the US, for code that runs only when called

AWS Lambda runs code in response to events without you managing servers. Typical uses are webhook endpoints, small APIs behind API Gateway, processing files when they land in S3, scheduled jobs that replace cron, and workers that drain SQS queues. You pay per request and per millisecond of run time, and nothing while the function is idle.

In US East (N. Virginia) Lambda charges $0.20 per million requests and $0.0000166667 per GB-second of compute on x86, or $0.0000133334 on Arm, with lower rates at very high volume. Every account gets 1 million requests and 400,000 GB-seconds free each month. A webhook handler that runs 100,000 times a month at 400 ms and 256 MB stays inside the free tier; the calculator on this page shows other cases.

A cold start happens when Lambda has to create a new execution environment, start the runtime and run your initialization code before handling a request. We reduce it by trimming dependencies, giving the function enough memory, moving heavy setup out of the hot path, and, where users notice the delay, using SnapStart or provisioned concurrency.

A single Lambda invocation can run for up to 15 minutes (900 seconds). Work that takes longer is usually split into steps with AWS Step Functions, or moved to containers on ECS or AWS Batch.

For spiky or low-volume work, Lambda is usually cheaper because you pay nothing between requests. For a service that is busy all day, every day, a right-sized EC2 instance or a Fargate container with a Savings Plan often costs less. We model both from your real request counts and durations before recommending one.

If the code mostly reacts to Zoho records and stays small, Zoho Catalyst can be simpler to run because it sits next to your Zoho data. If the logic belongs with an app or database you already run on AWS, or needs services like S3, SQS or a private VPC, Lambda is the better home. We are partners on both platforms and choose per job.

Yes. A Zoho CRM workflow rule can post to an HTTPS endpoint, which can be an API Gateway route or a Lambda function URL. We add a secret token to the webhook, validate it in the function, queue the work if Zoho may send bursts, and write results back through the Zoho CRM API.

Often, yes. Arm compute is listed about 20% lower per GB-second than x86, and many Node.js and Python functions run on it without code changes. Functions with native libraries built only for x86 need testing first, so we benchmark before switching.

Lambda has managed runtimes for Node.js, Python, Java, .NET and Ruby, and supports Go, Rust and others through OS-only runtimes or container images. We mostly build in Node.js and Python, and keep runtimes upgraded before AWS ends support for older versions.

The first conversation is free. After that, each Lambda project is a fixed price written into a signed BRD that lists every function, trigger, test and alarm. Bigger moves off old servers may start with a paid discovery, which we quote up front. Your AWS usage is billed to you by AWS directly.