MD Mutasim Billah Saad

Building products that solve real problems • Full-Stack Web Developer (MERN) • Building in public.

[MD Mutasim Billah Saad @mdsaad_dev]

Will your API stay fast when traffic spikes? 🚦

Meet LoadTST. Set a target, pick concurrent users, launch, and watch response times, throughput and success rate live.

https://t.co/pbkG286Smx

#API #DevTools #LoadTesting

[MD Mutasim Billah Saad @mdsaad_dev]

A good API isn’t one that never fails.

It’s one that fails properly.

Clear errors, proper status codes, and unexpected error handling make backend systems easier to debug and maintain.

Errors are inevitable. Bad error handling isn’t.

#BackendDevelopment #APIs #WebDevelopment

[MD Mutasim Billah Saad @mdsaad_dev]

@b4dgerr Connected

[MD Mutasim Billah Saad @mdsaad_dev]

Looking to connect with Web Developers, SaaS Builders & Tech Founders.

I’m a Full-Stack Developer focused on MERN Stack, SaaS & Web Applications.

Building, learning & sharing along the way.

Say hi. Let’s connect.

#WebDevelopment #MERN #SaaS #BuildInPublic

[MD Mutasim Billah Saad @mdsaad_dev]

Hey @X
I’m a full-stack developer from Bangladesh, building SaaS products.

Looking to connect with people who:
→ Are building SaaS
→ Ship side projects
→ Share what they learn
→ Want to collaborate on real products

Let’s connect and build together.

#BuildInPublic #WebDev

[MD Mutasim Billah Saad @mdsaad_dev]

Your API doesn’t need to handle every request.

That’s why rate limiting matters.

One user can send thousands of requests and overload your server.

Good backend systems don’t just handle requests — they control them.

#BackendDevelopment #APIs #WebDevelopment

[MD Mutasim Billah Saad @mdsaad_dev]

@buildwitharman Now I build a pos system

[MD Mutasim Billah Saad @mdsaad_dev]

Say hi. Let’s connect.

#WebDevelopment #MERN #SaaS #BuildInPublic

[MD Mutasim Billah Saad @mdsaad_dev]

@b4dgerr Contacted

[MD Mutasim Billah Saad @mdsaad_dev]

@stackway24 Contacted

[MD Mutasim Billah Saad @mdsaad_dev]

@yesadok Building an ai intregation saas system

[MD Mutasim Billah Saad @mdsaad_dev]

@almokhtar_al Great 👍

[MD Mutasim Billah Saad @mdsaad_dev]

@iamsethmedina @t3dotcodes Got it. Using the proper SDKs definitely makes sense. Which AI providers are you supporting right now?

[MD Mutasim Billah Saad @mdsaad_dev]

@benabmathew Contact

[MD Mutasim Billah Saad @mdsaad_dev]

@almokhtar_al Appreciate it! AI security sounds interesting. What area are you focusing on most while preparing for OSEP?

[MD Mutasim Billah Saad @mdsaad_dev]

@iamsethmedina That’s a really interesting setup. I like the idea of using users’ own subscriptions. How does the app handle the different AI providers?

[MD Mutasim Billah Saad @mdsaad_dev]

@empowwerr Contacted

[MD Mutasim Billah Saad @mdsaad_dev]

@itzSaasified @EtienRemi20687 Appreciate it! I’m trying to stay hands-on with both coding and building. What are you working on these days?

[MD Mutasim Billah Saad @mdsaad_dev]

@iamsethmedina That sounds interesting. What does the studio side of Rotli focus on, and what are you building there with Opus 5.5?

[MD Mutasim Billah Saad @mdsaad_dev]

@itzSaasified Appreciate it! Always good to connect with fellow SaaS builders. What are you currently building?

[MD Mutasim Billah Saad @mdsaad_dev]

@iamsethmedina That’s a lot of interesting projects. I’ll check out Rotli and LetsSeize. I haven’t played many board games, but I’d be up for trying one.