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A small studio in Bangladesh building Next.js and MERN apps for founders worldwide, with Stripe payments that charge, renew and refund exactly like they should.
Built with
Trusted by founders and teams in the US, UK, Canada, Australia and Europe
“Shakil did a great job, trying to understand the requirements for my project and delivered exactly what i needed in a very short time. He communicated cleary what he would need to finish the stripe integration and was very cooperative. Overall he did a great job and I would always work with him again.”
“He fixed my problem very quickly, was very accommodating and easy to work with and he fixed the problem in 5 minutes that I was not able to solve in 5+ days.”
You asked someone to “just add Stripe.” Three weeks later checkout works: on their laptop, in test mode, on a good day. 💸
Then the webhooks start failing quietly. Renewals don’t renew. A customer gets charged twice and emails you in ALL CAPS.
It’s not your fault. Payments are the one feature where “mostly works” means “broken.”
Most integrations stop at the happy path: no signature checks, no retries, no plan for an expired card. And the freelancer who built it? Last seen three time zones ago. 👻
That’s why PolarSoftBD exists. We build Next.js and MERN apps where the money part is boringly reliable, from the first checkout to the hundredth renewal.
Fixed price, 100% code ownership and 30 days of bug support after launch. Your users pay, you get paid, and nobody needs caps lock.
Six stops, every project. You always know where we are and what’s next.
We pin down goals, scope and the right stack before anyone writes code.
Payments aren’t a plugin. They’re a state machine with your revenue inside it.
We wire up Checkout, subscriptions, the Customer Portal and Connect, and verify every single webhook, so the boring stuff stays boring.
Flip the switch to see the difference. 👉
Audit: we read your Stripe setup and rank every risk.
Payment flowLeaking
Wireframes first, polished UI second, your feedback at every step.
One team from database to deploy: Next.js and the MERN stack, typed end to end.
You get clean, tested code in your own repo, plus docs your next developer will actually thank you for.
We also build
Next.js front end, typed API, database and auth, shipped in small demos.
Plenty of projects make it to 80%. Ours make it to production.
Shuffle the deck for a few we’ve launched. Every card opens the full case study.
Stripe Connect B2B
Freelance Marketplace with Stripe Connect Split Payments
Checkout, subscriptions, verified webhooks and Connect, tested against real edge cases.
From a single checkout button to marketplaces splitting payouts between sellers, and clients keep coming back for the next one.
If it touches money, we’ve already met its weird edge cases. So you don’t have to.
Tests, a calm deploy, and monitoring that tells us before your users do.
Fixes, new features and help scaling once real customers show up.
Fixed prices, no hourly billing. You approve a written scope before any code is written, and the price only changes if you add scope.
One-time payments
$60
fixed · 1–2 days
Take your first payment this week.
Get startedSubscription + plan control
from $250
fixed per scope · 3–5 days
Every project
Our most popular Stripe build.
Start a projectMarketplaces & platforms
from $400
fixed per scope · 5–10 days
Money in, money split, money out.
Plan a marketplaceMERN / Next.js web app
$150 – $1,500
2 days – 4 weeks
From one focused tool to a full app.
Full-stack detailsMulti-tenant SaaS with billing
from $800
fixed per scope · 3–8 weeks
Every project
Idea to paying users, one team.
Start a projectValidate fast, or replace Salesforce
from $800
fixed per scope · 3–10 weeks
Built around how you actually work.
MVP detailsProduction-ready source code you can buy today and ship this week.
A few of our 250+ Fiverr reviews, in our clients’ own words.
“He fixed my problem very quickly, was very accommodating and easy to work with and he fixed the problem in 5 minutes that I was not able to solve in 5+ days.”
“Absolutely incredible work that this man does the work so fast and efficient and he goes above and beyond”
“The best. Pays attention to details and know what he is doing, and very very responsive. And delivers on time”
“Booked a meeting and within 5 minutes I was on a call. And within another 5 minutes I could tell he knew what he was doing!”
“Perfect execution. Fast. Faultless. Really nice guy too, well organised, has a good workflow structure, and client involvement.”
“He’s an excellent developer who works fast and keeps you constantly updated.”
“Great working with you sir! We will for sure be working in the future. Exceptional customer service and expertise!”
“Shakil is an incredibly talented developer. He explains things very clearly, codes cleanly and gets things done speedily.”
“He was immediately available thank goodness! Starting working right away and was done very quickly. Thank you so much. I look forward to working with you again!”
“Shakil made the task that took me like 2 weeks of attemps in 1 only, whit any doubts he is one programmer with experience, responsable and very kind. 100% recommended”
“Faster than expected time of delivery great understanding of react and stripe integrations!”
“Highly recommend him. He was invaluable before, during, and even after the completion of the work.”
“Shakil is great guy, knows his stuff! Wish I found him weeks ago. Highly recommended.”
“Shakil knows my code better then i do and makes anything possible you are wishing + more. I 100% recommend him and be back soon”
“If my project works today it is because of him. I highly recommend!!! One of the best in the industry!!!!”
“Shakil is a professional. He gets top quality results in record time.”
“Hey quick work and good advice !!! I recommend this fiverr any time”
“Shakil did a great job, trying to understand the requirements for my project and delivered exactly what i needed in a very short time. He communicated cleary what he would need to finish the stripe integration and was very cooperative. Overall he did a great job and I would always work with him again.”
“once again Shakil was able to deliver flawlessly. he went above and beyond making sure that code execution worked perfectly with the stripe configuration. the delivery was only a few days and that means a lot especially around this time of year . thanks again.”
“Shakil Khan truly stands out in payment integration and backend development with his exceptional professionalism and keen attention to detail. Working with him was a breeze thanks to his quick responsiveness and deep understanding of the project needs. Highly recommend for anyone seeking top-notch service and timely delivery! 👏 I'm looking forward to work with him again soon.”
“Shakil is the best thing on Fiverr. If it weren't for Shakil, I might not use Fiverr this much. If you have a Stripe-related job, you don’t need anything other than Shakil. HIRE HIM!”
“I had a fantastic experience working with shakil! His expertise and guidance made the installation of the Stripe script a breeze. Quick response time, clear instructions, and a friendly attitude. Highly recommend his services for anyone in need of reliable and proficient development support!”
“Absolutely hands down the BEST freelancer I've ever worked with and that's saying a LOT! I'd give him 500 stars if I could. Incredible knowledge, professionalism, dedication, speed, English skills, etc. I will absolutely recommend him without hesitation for working on Stripe projects.”
“Shakil did an amazing job! He was professional, attentive, and delivered exactly what I needed with great quality. His communication was excellent, and he even provided helpful suggestions to improve the outcome. Highly recommend!”
“Shakil Khan is an outstanding software developer! His professionalism, and code expertise EXCEEDED my expectations. Working with him was a pleasure—he went above and beyond, was highly cooperative, and responded quickly. 👍”
“Shakil truly delivered top-notch work — professional, well-documented, and without any bugs. Working with him was a breeze, thanks to his prompt responsiveness and politeness. Highly recommended for any software development project! 👍”
“He is a professional developer. He completed the project on time and he communicated well. I recommend him to anyone who is looking for a professional developer. I will work with him again in the future. Thank you”
“Working with Shakil Khan was a FANTASTIC experience! His attention to detail and code expertise are unmatched, and the clear documentation made everything a breeze. Plus, his proactive communication and quick responsiveness ensured the project was delivered RIGHT ON TIME. 👌”
“Shakil Khan exceeded my expectations with his code expertise and thorough documentation. He was polite, punctual, and truly went above and beyond. Working with him was a delight; he explained everything clearly so I always knew what to expect. 🙌”
“I had the pleasure of working with Shakil, and I couldn't be more impressed. His programming skills are exceptional, and he consistently delivered high-quality work on time. Shakil's attention to detail and problem-solving abilities truly set him apart. I highly recommend Shakil for any project requiring a talented and dedicated programmer.”
“It was a great experience working with Shakil Khan, he has clearly done this many times before and knows exactly what to do. He was able to understand the requirements for my particular system very well and adapt to changes quickly and flexibly where needed. Communication was also very quick and effective, there were explanation videos with screen recordings any time I needed more clarification. Highly recommend this service to any future project requiring a stripe payment integration”
“Shakil is incredibly knowledgeable and, most importantly, he prioritizes doing the job successfully over money. If you have a Stripe problem, there's absolutely no need to look for anyone else. There's nothing he can't solve when it comes to Stripe, and his best quality is that he stays in constant communication with you throughout the process to ensure the job is done exactly as you want, ultimately achieving 100% success. After meeting him, I wished I had contacted Shakil first. I reached out to many people before him, but no one compares to Shakil. Fiverr should reward him. You won't find another freelancer like him here! Give your Stripe project to him and relax!”
“Correction super rapide mon problème d'intégration Stripe.”
“superb. love working with him.”
“Thank you very much for your tips and advice.”
“Such a pleasure to work with Shakil”
“Awesome work, will hire Shakil again for more work!”
“Great as usual!”
“Good job!!!”
“Great guy, I will work with him again”
“Was very quick to help with the request”
“Fantastic work!”
“A pleasure to work with Shakil again”
“Great to work with Shakil. Thank you.”
“Wonderful experience. Thank you!”
“Best person to work with”
“Once again, super work and fast delivery”
“Wonderful as always!”
“Great job!”
We build custom websites, SaaS platforms, CRM systems, admin dashboards, business automation tools, full-stack web applications, MVPs, and landing pages. Every project is built from scratch — no templates, no off-the-shelf solutions.
We follow a 4-step process: Discover (free 30-min strategy call to scope your project), Design (architecture and wireframes for your approval), Build (iterative sprints with weekly demos), and Launch (deployment, documentation, and handoff). You’re involved at every stage.
Stripe checkout starts at $60, subscription billing from $250 and Stripe Connect from $400. Full-stack apps run $150–$1,500, and SaaS, MVP or CRM projects start from $800. You get a fixed-price quote after a free discovery call — no hourly billing surprises.
A landing page or simple website typically takes 1–2 weeks. An MVP or SaaS platform is usually 4–12 weeks depending on features. We’ll give you a realistic timeline during the discovery call and stick to it.
Yes — 100%. You receive full source code, full IP ownership, and full deployment access from day one. No vendor lock-in, no recurring license fees, no strings attached.
Absolutely. We can extend, refactor, or migrate existing projects. If you have a preferred stack, we’ll adapt — we work with most modern JavaScript/TypeScript frameworks and databases.
Bank transfer, Wise and PayPal. For larger projects, we typically split into a 50% deposit before starting and 50% on delivery.
Yes. Every project includes 30 days of free bug-fix support after launch, and we offer maintenance and scaling support afterwards — bug fixes, performance, new features and infrastructure. We can also hand off cleanly to your in-house team.
Book a free 30-minute strategy call. We’ll discuss your project, suggest the right architecture and tech, and give you a transparent fixed-price estimate — at zero cost and no commitment.
Tell us what you’re building, or what’s broken. You’ll get a straight answer, a clear plan and a fixed quote after a free 30-minute call.
