WORLD 4-1
Coolblue
Senior Software Engineer
Front-facing engineer at a top Dutch e-commerce company, building scalable solutions for millions of users.
rana@rotterdam:~$ whoami
Salauddin
Rana
A software engineer and a dedicated therapist for AI agents. For more than 12 years, I've helped many businesses build and scale their products. Now I spend my free time in the kitchen.
$ cat player.json
{
"name": "Salauddin Rana",
"class": "Software Engineer",
"suit": "Full-Stack",
"level": "12+ years of experience",
"base": "Rotterdam, NL"
}BE94%
FE72%
01 / ABOUT
I build web apps that help businesses grow without becoming a mess.
Growth is the goal. A mess is the side effect I avoid. I build what brings in revenue and scales, cleanly enough that the next developer doesn't need therapy and your AI agent doesn't hallucinate.
I've helped businesses grow in e-commerce, SaaS, HR tech, health tech, fintech and Shopify apps, including four years in leadership roles.
02 / DOMAIN EXPERTISE
Industries I've worked in.
Hit a block to ask the agent what I built there.
03 / INVENTORY
Items collected
64 items across 7 bags
SELECT BAG
$ ls ./backend// main weapon
- Node.js
- Express.js
- Next.js
- Nest.js
- TypeScript
- JavaScript
- PHP
- Laravel
- Symfony
04 / POWER-UP
Full-time agent wrangler.
Part-time quality police.
Hand-written coding is pretty much dead. Software engineering isn't. Building is fast now, and I make sure the agent writes code like your senior developer, not your intern.
> HARNESS SETUP [v > A]
Rules, context, MCP servers and agent configs tuned so the first answer is usually right.
> PLAN & REFINE [< < B]
Work is planned and refined into small, clear tasks so every agent knows exactly what done looks like.
> RUN & REVIEW [^ ^ A]
Agents build, test and open the PR. I review it, and if an agent drifts, I tune the harness.
> SHIP & SCALE [> v B]
Deploy, measure performance under real traffic, and make sure the architecture still holds up. Then repeat.
05 / WORLD MAP
Experience
WORLD 3-2
WPDeveloper
Director of Engineering
In charge of the SaaS and Shopify app teams. Built the system architecture and made the best technical decisions for the business.
WORLD 3-1
G&R
Tech Lead
One of the largest ad networks in Bangladesh. Led and managed the tech team building scalable solutions on AWS.
WORLD 2-2
Deligram
Backend Engineer
Built RESTful APIs for an omnichannel e-commerce platform in Bangladesh.
WORLD 2-1
SD Asia · MyCash Online
Backend Engineer
Built startup and funding management at SD Asia, and worked on MyCash Online, a fintech company.
06 / PASSIVE PERKS
Led teams.
Never stopped building.
Beyond the developer: the skills that don't fit in an inventory bag. Always active, no mana required.
> list your passive perks
Works in complex microservice systems built for heavy traffic. Designs event-driven and distributed systems that scale as customers grow, without the headaches.
Led multiple teams of 25+ engineers. Built the company's hiring process and the product development flow, from requirements to sprints to deployment.
Aligns business and engineering on realistic expectations, so delivery stays smooth and nobody burns out getting there.
Learned from past incidents, so every launch ships with real monitoring, backups and a rollback plan.
07 / SIDE QUEST
Bots don't eat.
Humans do.
I never liked cooking, but I always loved eating. When I moved to the Netherlands, it was really hard for me to find my type of food. So I started cooking, and now I've unlocked a new skill. Hungry already? Check out some of my popular dishes.
