Wall of love

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Screenshots of what learners sent us while working through the assignments, exactly as they wrote them.

Learner story · Module 1, Assignment 1

Did the batch-insert assignment. Fixed a production timeout at work the next day.

A learner benchmarked MongoDB against Postgres at scale, with and without batching. The next day at work they got a connection-timeout bug on large document reads. They spotted the missing batching first, proposed the fix, and their senior agreed.

WhatsApp conversation: a learner compares MongoDB and Postgres write and read performance, then the next day at work fixes a connection timeout using batch updates, and a senior developer agrees with the approach

Learner says after Module 1 they made an impression on new fullstack projects at work and now contribute to database design discussions by asking the right questions

Learner says they have come far in 1.5 months, learning how indexes work underneath and how the query planner changes plans as data grows

Learner enjoyed inserting 100 million rows for the first time and seeing how PostgreSQL and MongoDB differ in speed and storage

Learner reports a query going from 6 seconds to 0.6 seconds after adding an index

Learner with 3+ years of experience says the course gives the depth companies expect, which service-company work does not build

Learner submitted their first assignment after being stuck reading and watching recordings for a long time, saying it built their hands-on confidence

Zoom chat: a learner in week one of the October batch says they learned more that week than in the previous month

Learner submits their first assignment despite busy office weekdays and prefers it to videos because they never code while watching

Learner calls the first assignment amazing and challenging, learning how inserting one row differs from 1M rows, and about streaming and batch inserts

Learner calls it the most fun they have had programming in a long time, filling backend gaps from office work, though the tasks are demanding

Learner likes the unique course structure, finding it more fun and better for connecting ideas than code-along video tutorials

Learner says the format sends them down many tangents while solving each question and finally answers long-held curiosities

Learner submitted the first assignment, enjoyed it because it makes you think, made a schedule, and looks forward to feedback

Learner is connecting the dots across assignments and calls it a totally different approach from YouTube projects that builds critical thinking

Learner says the assignment looks interesting with a lot to learn, followed by an excited "Abhi maza aayega na bhidu" GIF

Learner calls it a wonderful learn-by-doing system they had lacked, learning a lot by exploring with Google and ChatGPT

Learner says the course helps them plan better from the start and calls it a gem

Learner found the indexing performance gains fascinating and enjoyed the deep-thinking SQL challenges

Learner finally saw SQL vs NoSQL differences in action and learned batch processing in Python

Learner enjoys the exercises, saying they deepen understanding and the approach is exactly what is needed today

Learner praises the gradual assignment structure that built confidence and pushed them to try batch inserts they had only known in theory

Learner says the assignments are challenging and make them think about how a system works at a bigger scale

Learner says they have learned so much in the past few weeks and enjoyed experimenting and trying things

Learner who always liked learning by doing but never considered scale says the content has been pretty fun

Learner feels more confident in SQL than before the cohort, crediting the large amount of practice

Learner says this way of learning works well, was fun, and got them excited about backend engineering again

Learner is adjusting to the steady depth-building style, different from their skimming habit, and hopes to build depth by the end

Learner never realized SQL could do so many of these things natively

New learner signed up because friends taking the course said it was very helpful

Learner says the course is rebuilding their confidence and calls the mentorship helpful, insightful, motivating and supportive

Learner saw roughly 6x faster concurrent request handling after making database-bound operations async

Learner loves how the assignments are designed and has been hooked for the last few days

Learner liked the benchmarking exercise, something they had never done before

Learner says the material targets exactly where they lacked, implementation and performance testing

Learner says the modules are very different from YouTube lectures and they improve with every question

Learner says the content is neatly structured, encourages experimenting, and the written format suits them better than videos

Learner says the versioning assignment clarified breaking changes, semantic versioning and backward compatibility in real APIs

Learner explored database topics found in no blog or tutorial across seven assignments and grew their technical vocabulary

Learner says experimenting with caching and rate limiting helped them understand concurrent requests and race conditions

Learner enjoys the structured, hands-on, assignment-based approach that keeps them thinking through problems instead of consuming content

Learner explains their seeding script hung on millions of rows in one transaction, and they fixed it by seeding in batches

In their words

From the people who did the work

I have learnt more in 1 week than last 1 month.

This is the most fun I have had programming in a long time. I can see learning gaps from backend work at office getting filled. The tasks are very demanding even with help from AI and Google.

With over 3 years of experience, I understand that companies now expect depth in whatever skills you have. Since my company is service-based, it is very difficult to gain that depth.

I was stuck reading and watching tutorials for a very long time. Vyson is building my confidence with hands-on assignments.

So many other questions pop into my head while solving each assignment. This is making sure I find answers to them.

A totally different approach from building projects by following YouTube videos. It develops critical thinking.

A wonderful system of learning by doing. I lacked it in my journey so far. Getting to learn a lot through exploring.

I really like this over videos because I never code watching videos.

The design is unique and effective. It helps to recollect and connect thoughts better than code-along video tutorials.

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