SaaS products and
QA as a Service,
built to survive
production.
We build multi-tenant SaaS platforms, APIs and MVPs, and test web and mobile products as a managed QA service, for clients across North America, Latin America and the Caribbean, the UK and Europe, the Gulf, Japan and Asia-Pacific, Australia and New Zealand, and Africa.
Senior-owned from first commit to handover — never a hand-off to juniors. We sell correctness and durability, not speed or low cost.
Built your app with AI? We test it before your users do →
Built with logic. Delivered with precision.
- 1BuildRunning
- 2Lint & Static AnalysisSuccess
- 3Unit TestsSuccess
- 4Integration TestsSuccess
- 5Security ScanSuccess
- 6DeploySuccess
Approved
- Build#4827
- Tests142/142
- Coverage96.3%
- StatusRunning
- Senior-owned deliveryNo junior hand-off. Full accountability.
- Tests block the mergeQuality gates, not hope.
- Production-first architectureBuilt for scale and stability.
- Zero-regression mindsetBetter with every release.
Domain-aware engineering. SaaS to HealthTech.
We build for sectors where getting it wrong is expensive — compliance, payments, data, and scale. We serve founders and teams across North America, Europe, the Middle East, Asia-Pacific and Africa. Pick your sector.
SaaS Platforms
Multi-tenant architecture, subscription billing, SSO and integrations — from MVP to enterprise-ready scale.
FinTech & Payments
PCI-conscious payments, KYC/AML flows and audit-ready systems — built to pass security review.
HealthTech
HIPAA/GDPR-conscious architecture, encrypted PHI and HL7/FHIR interoperability, with audit trails built in.
EdTech
Learning platforms, assessment engines and progress tracking — accessible (WCAG) and ready for peak traffic.
eCommerce & Retail
Headless storefronts, fast checkout and real-time inventory that hold up under traffic spikes.
PropTech & Real Estate
Listing platforms, MLS/IDX integrations, agent & tenant portals and document workflows — production-grade from launch.
Startups & MVPs
Production-grade MVPs in 4–6 weeks — tested from day one, architected to scale after product-market fit.
Senior-owned delivery.
No hand-off. No compromises.
A senior engineer owns your project from day one — never a hand-off to juniors once the contract is signed. That means better architecture, fewer bugs, and systems that last.
Our process →- Senior-owned delivery
End-to-end ownership and accountability.
- Architecture review
Scalable, secure and maintainable by design.
- QA gates
Tests, code review and no regression releases.
- Observability & monitoring
Real-world reliability, not just passing tests.
- Maintainability
Clean code, clear structure, future ready.
SaaS development and QA as a Service. One standard.
Our two headline offers, plus backend work and code rescue. We don't sell hours. Each engagement is scoped, reviewed, and shipped under the same engineering bar.
SaaS Development
Multi-tenant products and MVPs from zero. Auth, billing, tenant isolation, observability — wired correctly the first time.
QA as a Service
Manual, mobile app, security, accessibility, automation, API and performance testing. Buy a monthly plan, a one-off audit or a dedicated QA team.
Complex Backend & API Architecture
Schema design, queueing, rate-limiting, idempotency, audit trails. Systems that hold up under load and audit.
Code Rescue & Growth Engineering
Inheriting a broken codebase, slow shipping, or a stalled launch? We diagnose, stabilize, then accelerate.
The stack we trust. And the reasons why.
We don't hide our stack — we lead with it. Every choice optimizes for one thing: systems that survive their second year of production.
Direct access. Real ownership.
I'm Rupak Amin, the founder of RAITHub. You'll work directly with me — no account managers, no hand-offs. I review architecture, code and quality, and stay involved until your system is live and stable.
- Direct communication
Work with me, not a middle layer.
- Weekly delivery cadence
Clear updates, real progress.
- Long-term partnership
We're in it for the long run.
Selected work. Real systems, real numbers.
A look at what we ship — under NDA where required, with metrics where allowed.
eCommerce · Live in productionTheSkinProof — verified-skincare marketplace
Invoice-verified marketplace with a four-gate authenticity pipeline, 5 role-based portals and regional payments.
Next.jsPostgreSQLPrisma225K+Lines of code217API endpoints5PortalsCASE_002
B2B eCommerce · Live in productionSundor Skin — B2B skincare wholesale platform
Gated wholesale ordering for a skincare importer: buyer approval, tier pricing, credit control and batch-level fulfilment.
Next.jsPostgreSQLNeon146DB tables77Route pages12Staff rolesCASE_003
PropTech · SaaSPropDesk — property management for small landlords
Rent collection, maintenance routing, leases and inspections for landlords with 1–50 units, built from a 122-page SRS.
Next.jsPrismaStripe1,024Tests130+API endpoints4User rolesCASE_004EdTech · Generative AIPadhAI — AI tutoring for emerging markets
A model router that keeps per-student AI cost viable, with adaptive assessment across web, WhatsApp and Telegram.
Node/TSFastAPIPostgres12Services7Markets9Payment gatewaysFour phases. No black boxes.
A documented method, not a sales pitch. You see the same artifacts we use internally — at every step.
Technical Audit
15-min call. We probe scope, risks, and the real constraints. You leave with a written assessment — even if we don't work together.
Architecture Spec
Schema, API contracts, infra plan, risk register. Reviewed by founder, signed off by you, before a line of production code is written.
Build · Weekly demos
Working software every Friday. Branch previews, contract tests on every PR. You see progress as it happens, not at the end.
Hardening + Handover
Perf budgets, alerting, runbooks, on-call playbook. We don't disappear at launch — we hand over a system you can operate.
Got questions? We've got answers.
Here are some of the most common questions we get.
What is RAITHub? +
RAITHub is a founder-led, QA-first software development company founded in 2024 in Dhaka, Bangladesh. Its two headline offers are SaaS development and QA as a Service (manual, mobile app, security, accessibility, automation, API and performance testing). It also builds APIs and MVPs and rescues struggling codebases, for clients worldwide.
Who founded RAITHub? +
Rupak Amin, Founder & Lead Engineer, who reviews the architecture on every engagement. There is no account-manager layer: clients work directly with the founder and the engineers building their product. About the founder.
Where is RAITHub based, and which countries does it work with? +
RAITHub is based in Dhaka (UTC+6) and works remotely, in English, with clients across North America, Europe, the Middle East, Asia-Pacific and Africa. It has no local offices; US and Canada clients get a daily 2-hour live overlap. Countries we serve.
What does RAITHub build? +
Web apps and progressive web apps, SaaS platforms, APIs and backends, and MVPs, mostly on Next.js, Node.js, TypeScript and PostgreSQL, for startups, real estate, eCommerce, education and fintech-adjacent products. It does not build native iOS or Android apps, though it does test them. QA as a Service.
How do you guarantee zero regressions? +
We don’t ship without a passing pyramid: type-checks, unit, integration, contract, and end-to-end. PRs are blocked on red. Production has automatic rollback. "Zero regressions" is the result of process, not promises.
Will you work under NDA? +
Yes — NDA is standard before any code, schema, or roadmap is shared. We can countersign yours, or send ours. IP is yours from day one, no licensing tricks.
How is pricing structured? +
Fixed-scope, fixed-price for MVPs, replatforms and one-off QA audits. A monthly dedicated team, QA plan or dedicated QA team for ongoing work. We don’t publish rates; we share full estimates with assumptions — and we eat overruns when they’re our fault. How pricing works.
Can you work with my existing team? +
Yes. We can lead the build or work alongside your engineers on a defined scope; we don’t offer staff augmentation. Most engagements include knowledge transfer, paired code reviews, and runbooks so your team owns the system after handover.
Bring us your hardest part.
We'll engineer through it.
High-integrity systems, built to survive production.