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Wojciech Lepczynski

Poznan, Poland

Chief Software Engineer @ GFT Technologies | Cloud Consultant | DevOps | AWS Community Builder | Blogger | YouTuber

Wojciech Lepczynski Points
Academic 0
Author 75
Influencer 6
Speaker 3
Entrepreneur 0
Total 84

Points based upon Thinkers360 patent-pending algorithm.

Thought Leader Profile

Portfolio Mix

Company Information

Areas of Expertise

Cloud 33.27
Cybersecurity
DevOps 79.53
Digital Transformation
IT Operations 87.17
IT Strategy 30.26
Careers 34.48
Personal Branding 30.33
Health and Wellness 30.49
Social 30.35
Coaching 30.43

Industry Experience

Financial Services & Banking
High Tech & Electronics
Professional Services

Publications

12 Article/Blogs
Cross-Region Transit Gateway Peering in AWS
Publication
January 29, 2024
Cross-Region Transit Gateway Peering in AWS

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Tags: Cloud, DevOps, IT Operations

AWS Community Builders 2024 - conclusions after 2 years
Publication
January 19, 2024
AWS Community Builders 2024 - conclusions after 2 years

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Tags: Careers, Cloud, DevOps

VPC peering connection 2024
Publication
January 15, 2024
Short blogpost about VPC peering connection in AWS cloud

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Tags: Cloud, DevOps

Cold Start Challenge in AWS Lambda Functions
Publication
December 27, 2023
Short article about Cold Start Challenge in AWS Lambda Functions

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Tags: Cloud, DevOps, IT Operations

State manipulation – removal | terraform state rm
Publication
September 18, 2023
Quick blog post about deleting resource from Terraform state using terraform state rm.

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Tags: Cloud, DevOps, IT Operations

Navigating Overlapping IP Addresses? Several solutions in the AWS cloud!
Publication
August 15, 2023
As businesses expand and evolve, the need often arises to merge multiple networks into a unified and efficient infrastructure. Within the cloud environment, this process can present a unique challenge when the networks being merged have overlapping IP addresses.

In the article you will find several solutions to untangle the web!

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Tags: Cloud, DevOps, IT Strategy

Start working in IT – tips from a technical recruiter
Publication
August 06, 2023
Working in the information technology (IT) industry can be a fascinating and rewarding career choice. Sometimes I’m asked to do a technical interview and I thought I could basically write some advice for people who would like to start working in IT. So I did, I wrote a social media post that got a lot of attention. This article was created as an extension of a social media post. To get a broader perspective, I decided to talk to some colleagues who also do technical interviews..

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Tags: Careers, Coaching, DevOps

How to read and write a file on S3 using lambda function and boto3
Publication
August 04, 2023
In this article you will learn how to save files to S3 and read them using the lambda function and boto3 in the AWS cloud. You’ll also find information about what permissions I’ve given the lambda function to do these things and nothing else. It is good practice to always grant only minimal permissions. It is not worth doing solutions based on admin roles. You should adjust permissions for each function and project individually.

In the corporate world, it is a valued skill that increases security and builds the trust of superiors, because they do not have to correct the code after you, and the entire project does not stretch over time.

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Tags: Cloud, DevOps, IT Operations

Increase Productivity: The Potential Of Networking Tools In The AWS Cloud
Publication
July 19, 2023
AWS offers many networking tools to facilitate your daily work in the cloud. If you want to increase your productivity and improve your work in the AWS cloud, check out this article. Below you will find 2 examples of tools related to network and infrastructure.

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Tags: Cloud, DevOps, IT Operations

Start in IT, learn programming and use Docker
Publication
April 03, 2023
This article is just part of a podcast talking about what docker can be useful for when you’re learning programming. In the podcast, we talked about how you can get started with containers and gave plenty of advice, warned about common mistakes and told you when it’s better not to use containers.

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Tags: Cloud, DevOps, IT Operations

How to clean S3 automatically – Lambda + CloudWatch Events
Publication
August 15, 2022
I had a problem a long time ago, when I gave people access to S3, they treated it like garbage can. Bucket was supposed to be for development purposes only, testing to see if features worked well etc. It’s just that people were testing different things and forgetting to delete files.

I decided to do something about it once and for all. These are buckets for testing and such are to be left empty with no sensitive data, and preferably no data at all

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Tags: Cloud, DevOps, IT Operations

Microsoft Azure exam at home
Publication
May 18, 2020
I wanted to pass a Microsoft exam, but not specifically go to an exam center, so I took the option to take the exam online.

I will present below what it looked like. Maybe it will be useful to someone and will also decide to pass some Microsoft exam online.

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Tags: Careers, Cloud, DevOps

2 Media Interviews
Co to jest Docker | Pierwsze kroki w IT #56 [ IT podcast ]
Publication
March 31, 2023
Poznaj konteneryzację i działanie Dockera. Jak zacząć, czego unikać?

Wojciech Lepczyński, DevOps Cloud Architect, przybliża nam temat konteneryzacji. Dowiadujemy się, jaką ma ona przewagę nad wirtualizacją oraz na czym polega tworzenie projektów z wykorzystaniem Dockera. Wojtek ma też garść porad: jakie systemy najlepiej działają z Dockerem, jak z nim wystartować i czego unikać.

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Tags: Careers, Cloud, DevOps

Wprowadzenie do DevOps | Pierwsze kroki w IT #55 [ IT podcast ]
Publication
March 17, 2023
dowiedz się czym/kim jest DevOps i jaką rolę pełni

Wojciech Lepczyński, DevOps Cloud Architect, opowiada o tym, czym jest DevOps, jakie korzyści przynosi firmom i ich klientom oraz czy trudno go wdrożyć. Podczas rozmowy poznasz również rolę DevOpsa w zespole i projekcie oraz dowiesz się, jak rozwijać się w tej dziedzinie i od czego najlepiej zacząć.

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Tags: Careers, Cloud, Personal Branding

21 Videos
AWS VPC peering connection 2024 | Hands-On - Practical tutorial with examples
Publication
January 15, 2024
AWS VPC peering connection 2024 | Hands-On - Practical tutorial with examples

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Tags: Cloud, DevOps, IT Operations

Lambda cold start - warming up
Publication
December 26, 2023
How can you automatically warm up the environment for Lambda functions?
Today's video tutorial will be about warming up the lambda function and cold starts.
I show you how AWS Lambda function work under the hood.

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Tags: Cloud, DevOps, IT Operations

Start / Stop ec2 machines with special TAG in all regions
Publication
October 11, 2023
In this video I show you how you can Start or Stop ec2 machines with special TAG in all regions using Lambda function and CloudWatch event. You can add specific TAG and only ec2s containing this TAG will be stopped.

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Tags: Cloud, DevOps, IT Operations

How to pass variable from CloudWatch event to AWS Lambda function | Tutorial with demo 2023
Publication
September 19, 2023
In this video tutorial I just use Lambda function with Python 3.11, simple IAM AWS LAMBDA BASIC Execute role and CloudWatch event. Using CloudWatch event you can pass variable to Lambda function witch different value and run different code.

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Tags: Cloud, DevOps, IT Operations

6 tips from DevOps Technical Recruiter | Job Interview 2023
Publication
July 26, 2023
Today I want to share some valuable interview tips for a DevOps position.
As a Technical Recruiter, I've seen many candidates go through the process, and I'm here to help you stand out from the crowd.

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Tags: Careers, Cloud, DevOps

Life after work - GFT Summer Fest (unofficial video by Wojciech) | work-life balance
Publication
July 19, 2023
How I like to spend my time after work. A short relation from the #GFT SUMMER FEST event.

Official version coming soon...

If you were there, you can bring back memories, if not, see what you missed.

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Tags: Careers, Health and Wellness, Social

Overlapping network addresses - How to deal with it in AWS using private NAT gateway | tutorial 2023
Publication
July 17, 2023
- Did you know that with a private NAT gateway you can hide your entire network?

- Did you know that if you have 2 networks with the same IP range, the resources contained in them can still connect to each other?

Yes it is possible, in the video I have prepared I talk about the whole process and I also recorded a whole tutorial showing step by step what to do to achieve it.

The video is from July 2023 so it's fresh and current.


A NAT gateway is a Network Address Translation (NAT) service. You can use a NAT gateway so that instances in a private subnet can connect to services outside your VPC but external services cannot initiate a connection with those instances.

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Tags: Cloud, DevOps, IT Operations

Cross account IAM - How to use IAM role from another AWS account | demo tutorial 2023
Publication
May 16, 2023
Cross account IAM. How to use IAM role from another AWS account.

IAM roles are a powerful tool for managing access to AWS resources,
but they can be tricky to set up and use. Today I will show you how lambda function can use a role from another AWS account.

In one AWS account, you can create a lambda function and assign a role as usual. However, you can create a new IAM role in a completely different AWS account and let the lambda function use it. You can control another AWS account using the Lambda function.

In the video I will use python 3.10 and boto3.

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Tags: Cloud, DevOps

How to read write files on s3 using lambda function - python & boto3 | AWS 2023
Publication
May 04, 2023
Today I want show you how you can save file from lambda on S3.
And how to read this file from s3 using lambda function with python and boto3.

I crate simple 2 lists in python and write this lists on s3
after this I read all files from s3 and create one big list.

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Tags: Cloud, DevOps

How to get information about ec2 from ec2 (IMDSv2) Best Practices & Practical demo tutorial 2023
Publication
April 25, 2023
How to get an instance ID and other information about EC2 from ec2?

IMDS vs IMDSv2
What is cloud-utils?

I will show you two ways to do this.
The old way IMDS and the new safer way.
I tell you about best practices you and give you some good advices.

I assume that you know how to create ec2, I do not want waste your time.

This video is a practical guide, learn the basics of devops and AWS clouds
The video contains a tutorial and a real use case.

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Tags: Cloud, DevOps

How to find all GP2 volumes in all regions using Amazon Lambda? | AWS tutorial
Publication
March 28, 2023
GP2 volumes are a type of Amazon Elastic Block Store (EBS) volume that provides high-performance SSD storage for your EC2 instances. These volumes are designed for use with I/O-intensive workloads such as relational and NoSQL databases, big data analytics, and log processing applications.
Lambda is a serverless compute service that lets you run code without provisioning or managing servers. With Lambda, you can build applications that automatically scale in response to incoming requests.



How you can find all gp2 volumes in all regions?
You can use the lambda function for this. It's easy, in this tutorial I show you how to do it :)

Why is it worth doing? Because gp3 is in most cases faster, more efficient and of course cheaper :)

Typically, the default volume type is gp2.
If you forgot to change the type to another, the volume is created in the default format, i.e. gp2.
If you have few disks, you can check all disks through the console one by one, in all regions.

However, for those who have a lot of disks and those who like automation, I have prepared this tutorial.
Thanks to it, you can make sure that you haven't forgotten about any old gp2 volume in any region.

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Tags: Cloud, DevOps, IT Operations

7 ways to delete objects from AWS S3 | How and when to use them | Tutorial 2023
Publication
February 20, 2023
7 ways to delete objects from AWS S3 | How and when to use them | Tutorial 2023

Do you know 7 ways to delete data from S3?
In my video tutorial I'll start with the basics and move on to the more difficult ones such as deletion via lifecyclerules, lambda function or API.
Of course, this is a tutorial so you will see all the methods how they work in practice, not just in theory.
You will be able to successfully try them yourself on your AWS account.

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Tags: Cloud, DevOps, IT Operations

How to create an alarm based on metrics? | AWS EC2 | CloudWatch 2023
Publication
January 17, 2023
How to set disk space usage notifications in AWS EC2

In this video you will learn how in the AWS cloud you can set notifications when disk usage exceeds a certain level.
How to configure Cloud Watch agent to send metrics about disk space usage.

In CloudWatch, you can set notifications for many parameters and keep everything under control.

It's a good idea to use several levels of notifications.
For example, when the disk space usage exceeds 80%, the entire team can be notified, and when the disk usage exceeds 90%, the entire team and the manager can be notified.

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Tags: Cloud, DevOps, IT Operations

API Gateway & Lambda - how to use API_KEY | security
Publication
December 20, 2022
In this video you will learn how to connect lambda functions to the API Gateway and how easily you can add security to the API Gateway.
I will add the API KEY.

I will show you 2 ways to create an ApiGateway.
First, a longer and a bit more difficult way
and then a simple and fast one.

Securing Your API with API Keys:
API keys are an important part of securing your API. By requiring clients to provide a valid API key, you can ensure that only authorized users are able to access your API. You can also revoke API keys if they are compromised or no longer needed.
In addition to API keys, API Gateway provides other security features like SSL/TLS encryption, AWS Identity and Access Management (IAM) integration, and OAuth2.0 support. By using these features in conjunction with API keys, you can create a highly secure and scalable API infrastructur

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Tags: Cloud, DevOps, IT Operations

Find cloud resources quickly and easily - AWS Resource Explorer
Publication
December 06, 2022
Find cloud resources quickly and easily - AWS Resource Explorer

Sometimes looking for something in the AWS cloud was like looking for a needle in a haystack. Fortunately, thanks to the new AWS service, this has become trivial. Now you can find resources from multiple regions and even multiple accounts in one place.

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Tags: Cloud, DevOps, IT Operations

Introduction to AWS CloudTrail - auditing and security monitoring
Publication
November 29, 2022
In the AWS cloud there is one service that will show you everything, tell you about everything that is happening in your AWS account - AWS CloudTrail.

Introduction to AWS CloudTrail
AWS CloudTrail is a service that enables governance, compliance, operational auditing, and risk auditing of your AWS account. It provides a comprehensive event history of your AWS account activity, including actions taken through the AWS Management Console, AWS SDKs, command line tools, and other AWS services.
With AWS CloudTrail, you can log, continuously monitor, and retain account activity related to actions across your AWS infrastructure. This allows you to maintain a complete audit trail of all activities in your AWS account, which helps simplify compliance analysis and troubleshooting.

AWS CloudTrail is a powerful tool for auditing, security monitoring, compliance analysis, and troubleshooting in your AWS environment. By leveraging the detailed logs provided by AWS CloudTrail, you can gain valuable insights into your AWS infrastructure, improve your security posture, and maintain compliance with regulatory requirements.
Whether you are a small startup or a large enterprise, AWS CloudTrail can help you achieve your goals and streamline your operations. So why not give it a try today and see how it can benefit your organization?

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Tags: Cloud, DevOps, IT Operations

Log in to multiple AWS accounts in one browser
Publication
November 08, 2022
How to be logged in to multiple AWS/Azure #accounts at the same time in the same browser without using incognito mode?

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Tags: Cloud, DevOps, IT Operations

AWS Community Day Poland 2022 | VLOG from conference
Publication
October 24, 2022
Have you ever wondered why people go to conferences?
I was at #AWS Community Day Poland 2022 in Warsaw.

A short vlog from the trip to the conference "AWS COMMUNITY DAY POLAND 2022"

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Tags: Careers, Cloud, DevOps

How to fix Session Manager – Quick Tip – AWS SSM Agent | Tutorial 2022
Publication
October 06, 2022
Hello, today a quick #tutorial on Session Manager and Amazon #aws SSM Agent. If you are having problems connecting to EC2(Windows system), using Session Manager then you should watch this video. You will learn from it how I deal with such problems.

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Tags: Cloud, DevOps, IT Operations

AWS Lambda Function & S3 trigger | tutorial - How to copy files from one bucket to another
Publication
September 14, 2022
How the #lambda function can automatically transfer files from one S3 bucket to another S3 bucket. The source file will be automatically deleted when the copy is finished. The function will work automatically. When someone adds a file to a special folder in bucket_1, it will be automatically moved to another folder in bucket_2 and removed from the first one.

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Tags: Cloud, DevOps, IT Operations

How I learn new things - not only cloud - flyboard 2022
Publication
August 07, 2022
Today not about clouds but about life, because you know.
In life, it's good to have something more than a job.
I like to learn new things.
I want to live for the moments you can't put into words.

How I learn new things ?

My first flyboard lesson :)

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Tags: Careers, Coaching, Health and Wellness

1 Video
How to start in IT. CDN and static websites in AWS cloud
Publication
July 22, 2022
video from SysOps/DevOps Online MeetUp

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Tags: Careers, Cloud, DevOps

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