Amazon

Software Development Engineer II

Working on enabling billions of customers enjoy their shopping journey on Amazon, directly from Search

Software Development Engineer I

- Delivered an automated filtering and auditing system for Amazon's wearable products, entirely managed with a single infrastructure based on AWS CDK (Lambda, Cloudwatch, S3) with Typescript, as well as internal processing platforms.
- Created ETL jobs based on Spark, with queries being exclusively managed in code with Java and Scala, allowing to have unit and integration tests in an full CI/CD fashion.
- Finished with 1st place in GraphML mutagenic classification task, top 0.3% in product matching task with multimodal tabular data, top 2% in NLP product safety identification task, all of which were internal machine learning competitions across Amazon, worldwide.

Software Development Engineer Intern

- Developed a large-scale image processing data pipeline for fashion-related items by creating and managing AWS resources such as EC2, Lambda, SQS, CloudWatch, DynamoDB and S3 with the AWS CDK and TypeScript.
- Reduced by x60 the processing time of images by parallelizing the execution of Python jobs and taking advantage of AWS Step Functions and AWS Batch processing.
- Delivered an automated and asynchronous pipeline workflow by adding CI/CD as well as unit and integration tests.

Air Liquide

- Contributed to the retro-engineering of an internal reporting solution by identifying key business partners and analyzing 193 reports through Google Apps scripts and Excel processing. 
- Improved customer experience by producing fully operational documentation for a principal client software and by interpreting end-user’s needs with Google Forms and Google Slides. 
- Increased back-end performance by inspecting the frequency and time of execution of SQL reports.

Solution & Data Intern

Envato

I have done freelancing on the Envato platform which consisted in Photoshop actions and Designs.

Freelance

SDE & AI @Amazon | Simplifying software engineering, system design, and generative AI | Building Hungry Minds: the newsletter to stay ahead in software 👇

Tell me about the last time you felt growing as a software engineer. Really.

𝙽𝚞𝚕𝚕𝙿𝚘𝚒𝚗𝚝𝚎𝚛𝙴𝚡𝚌𝚎𝚙𝚝𝚒𝚘𝚗? Here's why:

We all face information overload as software engineers. 
There's too much content and too little time.
You have to stay relevant, but it's hard.

Right now, you're either working or taking a break.

You are hoping to get a dopamine shot from scrolling your feed.

You can find:

💡 A practical tip to implement
📚 An inspirational quote
😆 Something funny

And then what?

→ Scroll past it? 
→ Forward it blindly to a friend?
→ Forget about it in the bookmarks?

The harsh truth: nothing.

What you consume passively doesn't make you learn.

How do I know?
It was the same for me for years.

How do you stay updated with AI, stay relevant in the job market, and continuously grow?

That's the problem I set out to solve with Hungry Minds - a free weekly newsletter to help software engineers learn and stay updated, without the noise.

I'm doing that by:

1. Writing to you daily on LinkedIn to 40K+ followers and over 5M impressions last year
2. Compressing 1 week of software deep dives and trends in 1 free newsletter issue
3. Sharing my thoughts and learnings being promoted to SDE II in 1.5y at Amazon

If that sounds interesting, check out Hungry Minds or DM me! I'm always down for a chat.

Save 50+ hours of your week here: 𝗵𝘁𝘁𝗽𝘀://𝗵𝘂𝗻𝗴𝗿𝘆𝗺𝗶𝗻𝗱𝘀.𝗱𝗲𝘃 (6K+ engineers from startups to big tech are reading already)

DISCLAIMER: Opinions expressed are solely my own and do not express the views or opinions of my employer.

My career background:

I'm currently an L5 software engineer at Amazon in Madrid, working on core Search CX and Personalization. 
In 2022/2023, I delivered 2 successful billion-scale projects with multiple teams across different time zones.

I have worked with multiple code languages (although this doesn't make a difference), and with tech stack in the lines of AWS CDK, React applications, scheduling systems, backends with GraphQL, and simple AI applications.

My education background:

- I finished a Master's in Machine Learning and AI with l'Ecole Polytechnique and IPP
- I completed a Master's in Computer Science and Data Science with ESILV Paris
- I got a Master's in business development and marketing with EMLV Paris

Alexandre Zajac

You can’t catch fish with a broken net.

And you can’t ship a product with a broken pipeline...


When tickets dry up or the market slows down,
most engineers take a nap.

But the senior engineer?
They see an opportunity.

They use that time to build velocity for later.

While others wait, they:

↳ Refactor that legacy module.
↳ Finally fix the recurring tickets.
↳ Fix the flaky tests slowing down CI.
↳ Automate the manual deployment steps.
↳ Update the documentation no one reads.

Don't wait for the "perfect time".
It never comes.

The storm IS the perfect time.

Build the net now. Catch the fish later.


What do you think?


~~~

👉🏻 Join 50,001+ software engineers getting curated system design deep dives, trends, and tools (it's free):
➔ https://lnkd.in/dkJiiBnf

~~~

If you found this valuable:

👨🏼‍💻 Follow Alexandre Zajac
🔖 Bookmark this post for later
♻️ Repost to help someone in your network

SDE & AI @Amazon | Building Hungry Minds to 1M+ | Daily Posts on Software Engineering, System Design, and AI ⚡

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Software Development and Architecture for Ring. 
- Owning multiple critical cloud-based services that help customers protect their homes and control them from their phones with devices such as video doorbells, home security cameras or alarm systems.
- Transitioning these services into modern architectures and Amazon's ecosystem after Ring's acquisition

Software development and architecture for Amazon Retail.
- I designed and led the implementation of a scalable service to expand the AddToCart feature on the Search page to 90% of the Search Traffic
- I led multiple iterations of expansion of AddToCart feature in Search page, amounting to over $1bn yearly revenue
- I was part of the design review group of the large InTech organization, contributing to technical designs from any team in the org

Software development and architecture for Amazon retail

- Designed and built a new page template coordinating with 3 partner teams,
integrating in 2 services and managing our own infrastructure.
- Designed and led an iteration with small and CX changes of a 1M daily impressions layout toggle
- Implemented read use case and GDPR compliance for new service supporting high requests/s (20k avg, 45k max)
- Unblocked a project getting wrong business data for 1 month caused by a bug in network retries in another service
- Reduced with an in-memory cache the backend latency of a 1-column mobile layout for hardlines from +2ms to -13ms
- Wrote a postmortem on the importance of finding/asking for clear API specifications of APIs you consume

https://strategizeyourcareer.com

I'm a Software Development Engineer at Amazon. 

1:1s with my managers were not enough for me to explore all the career topics I care about. So I decided to start writing.

Francisco Manuel Soto Ramírez

2 rules for office work:

1/ Protect long blocks for the hard work
2/ Dump all the easy stuff into one batch so they don't interrupt your day.

Do this now. Thank me later.

SDE2 @Amazon | Author of 19,000+ subs Newsletter (strategizeyourcareer.com)

Most engineers lose goals after a week. 

I did too. What saved me was a ten day tiny experiment.

My three step reset:
1. Pick one outcome you care about.
2. Run a ten minute daily experiment that moves it.
3. Don't break the chain

When to use:
↳ Your SMART goal end abandoned.
↳ Things shifting too fast.

When not to use
↳ The target is fixed and deadline is real.

Experiments rebuild trust fast and keep momentum alive.

♻️ REPOST to help someone today
👉 Learn more about goal setting: https://lnkd.in/eh_rfchD

#softwareengineering #coding #programming

We’re all like the image, looking while AI is working

But somehow some people’s AI work better than other people’s AIs

The difference is not the model, it is how you steer it.

To be the productive engineer and make your AI actually do what you want, I wrote a short guide 👇
https://lnkd.in/dmD-QKq9

--
♻️ REPOST to help someone today
#softwareengineering #coding #programming

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Francisco Manuel Soto Ramírez

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taplio

The Battle

Alexandre Zajac

Francisco Manuel Soto Ramírez

Followers

Posts

Engagements

Likes

Performance Score.css-goub6s{font-size:var(--chakra-fontSizes-md);font-weight:500;color:var(--chakra-colors-gray-600);display:block;margin-top:var(--chakra-space-1);}Alexandre Zajac's LinkedIn Performance

Performance ScoreFrancisco Manuel Soto Ramírez's LinkedIn Performance

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Performance ScoreAlexandre Zajac's LinkedIn Performance