20 new lessons of Lambda best practices

You can become a serverless blackbelt. Enrol to my 4-week online workshop Production-Ready Serverless and gain hands-on experience building something from scratch using serverless technologies. At the end of the workshop, you should have a broader view of the challenges you will face as your serverless architecture matures and expands. You should also have a firm grasp on when serverless is a good fit for your system as well as common pitfalls you need to avoid. Sign up now and get 15% discount with the code yanprs15!

It’s been almost 2 weeks since I announced my new course “Learn you some Lambda for great good!” and the reception has been amazing with nearly 250 of you have preordered the course! I’m truly humbled by the faith all of you have shown in me.

Of course, I have been working hard myself too. So far I have dropped 2 batches of content with a total of 20 lessons, including:

  • how to tune Lambda function memories for performance and cost
  • understand what affects cold start performance
  • how to measure and optimize Lambda initialization time
  • what is Provisioned Concurrency and when to use it
  • how to apply principles of least privilege to IAM policies
  • essential alerts you should always have
  • logging best practices
  • comparing distributed tracing tools, including X-Ray, Lumigo, Epsagon and Thundra
  • cost monitoring tools, including AWS Cost Explorer and CloudZero
  • how not to be blindsided by peripheral Lambda costs
  • how to keep the cost of CloudWatch Logs in check

I’m making good progress and are on track to release another batch of lessons on 31st Jan and then fully launch the course on 13th Feb. Please don’t hesitate to add suggestions and feedbacks so I know what you find useful and what you’d like to know more about.

If you haven’t signed up to the course yet, you can enrol here and enjoy the special price of £9.99 while I’m still working on the course.


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Hi, I’m Yan. I’m an AWS Serverless Hero and I help companies go faster for less by adopting serverless technologies successfully.

Are you struggling with serverless or need guidance on best practices? Do you want someone to review your architecture and help you avoid costly mistakes down the line? Whatever the case, I’m here to help.

Hire me.

Skill up your serverless game with this hands-on workshop.

My 4-week Production-Ready Serverless online workshop is back!

This course takes you through building a production-ready serverless web application from testing, deployment, security, all the way through to observability. The motivation for this course is to give you hands-on experience building something with serverless technologies while giving you a broader view of the challenges you will face as the architecture matures and expands.

We will start at the basics and give you a firm introduction to Lambda and all the relevant concepts and service features (including the latest announcements in 2020). And then gradually ramping up and cover a wide array of topics such as API security, testing strategies, CI/CD, secret management, and operational best practices for monitoring and troubleshooting.

If you enrol now you can also get 15% OFF with the promo code “yanprs15”.

Enrol now and SAVE 15%.

Check out my new podcast Real-World Serverless where I talk with engineers who are building amazing things with serverless technologies and discuss the real-world use cases and challenges they face. If you’re interested in what people are actually doing with serverless and what it’s really like to be working with serverless day-to-day, then this is the podcast for you.

Check out my new course, Learn you some Lambda best practice for great good! In this course, you will learn best practices for working with AWS Lambda in terms of performance, cost, security, scalability, resilience and observability. We will also cover latest features from re:Invent 2019 such as Provisioned Concurrency and Lambda Destinations. Enrol now and start learning!

Check out my video course, Complete Guide to AWS Step Functions. In this course, we’ll cover everything you need to know to use AWS Step Functions service effectively. There is something for everyone from beginners to more advanced users looking for design patterns and best practices. Enrol now and start learning!